Smartwatches / Compare

Fitbit Versa 4 vs Garmin Vivoactive 6

A

Product A: Fitbit

Versa 4

89 of 150 known

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B

Product B: Garmin

Vivoactive 6

93 of 150 known

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All 150 fields

Every value links to where we found it.

Only differences

AFitbit Versa 4

BGarmin Vivoactive 6

General

5 of 10 differ

Series

Versa3Press releaseblog.google/products-and-platforms/devices/fitbit/versa-4-sense-2Read 6 October 2026

Vivoactive1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

FB523, FB523BKBK-US, FB523SRAG-US, FB523RGRW-US, FB523RGRD1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Regulatory and Safety Notices: Model FB523 for FCC, IC, EU, UK and the IP rating. Retail colour SKUs are not stored.16Retailer pageabt.com/Fitbit-Versa-4-Graphite-Aluminum-Black-Strap-Fitness-Smartwatch-24mm-FB523BKBKUS/p/182318.htmlRead 7 October 2026Retail colour SKU FB523BKBK-US. Regulatory assembly remains FB523.17Retailer pageabt.com/Fitbit-Versa-4-Platinum-Aluminum-Waterfall-Blue-Strap-Fitness-Smartwatch-24mm-FB523SRAGUS/p/182320.htmlRead 7 October 2026Retail colour SKU FB523SRAG-US. Regulatory assembly remains FB523.18Retailer pageabt.com/Fitbit-Versa-4-Copper-Rose-Aluminum-Pink-Sand-Strap-Fitness-Smartwatch-24mm-FB523RGRWUS/p/182319.htmlRead 7 October 2026Retail colour SKU FB523RGRW-US. Regulatory assembly remains FB523.19Retailer pagephotopoint.ee/en/sports-watches/3626308-fitbit-versa-4-smart-watch-nfc-gps-satellite-amoled-touchscreen-heart-rate-monitor-activityRead 7 October 2026Retail colour SKU FB523RGRD. Regulatory assembly remains FB523.

010-02985-00, 010-02985-05, 010-02985-01, 010-02985-02, 010-02985-03, 010-02985-041Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

GTIN / EAN

810073611450, 810073611474, 810073611481, 81003885874616Retailer pageabt.com/Fitbit-Versa-4-Graphite-Aluminum-Black-Strap-Fitness-Smartwatch-24mm-FB523BKBKUS/p/182318.htmlRead 7 October 2026Exact FB523BKBK-US Black / Graphite Aluminum listing identifies 810073611450. Regional identifiers are not exchanged.17Retailer pageabt.com/Fitbit-Versa-4-Platinum-Aluminum-Waterfall-Blue-Strap-Fitness-Smartwatch-24mm-FB523SRAGUS/p/182320.htmlRead 7 October 2026Exact FB523SRAG-US Waterfall Blue / Platinum Aluminum listing identifies 810073611474. Regional identifiers are not exchanged.18Retailer pageabt.com/Fitbit-Versa-4-Copper-Rose-Aluminum-Pink-Sand-Strap-Fitness-Smartwatch-24mm-FB523RGRWUS/p/182319.htmlRead 7 October 2026Exact FB523RGRW-US Pink Sand / Copper Rose Aluminum listing identifies 810073611481. Regional identifiers are not exchanged.19Retailer pagephotopoint.ee/en/sports-watches/3626308-fitbit-versa-4-smart-watch-nfc-gps-satellite-amoled-touchscreen-heart-rate-monitor-activityRead 7 October 2026Exact FB523RGRD Beet Juice / Copper Rose Aluminum listing identifies 810038858746. Regional identifiers are not exchanged.

0753759342807, 0753759342814, 0753759342821, 07537593428388Maker spec sheet (PDF)asset.conrad.com/media10/add/160267/c1/-/de/003413014DS00/datenblatt-3413014-garmin-smartwatch-schwarz-grau.pdfRead 7 October 2026Original Garmin German specification sheet redistributed by Conrad, exact sold-SKU EAN table. 010-02985-00/01/02/03 map respectively to black/bone/green/pink. Later NZ -04/-05 combinations have no barcode here and do not inherit a variant barcode. EAN list identifies these original marketed packages, not every regional bundle.

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

24 August 20223Press releaseblog.google/products-and-platforms/devices/fitbit/versa-4-sense-2Read 6 October 2026Fitbit blog post dated Aug 24, 2022. Pre-orders started that day with worldwide availability this fall.

1 April 20254Press releasegarmin.com/en-US/newsroom/press-release/wearables-health/meet-vivoactive-6-the-latest-health-and-fitness-smartwatch-from-garminRead 5 October 2026Actual maker announcement. Planned purchase availability is corroborated by retrospective actual-release evidence below.

Status

Available2Maker product pagestore.google.com/us/product/fitbit_versa_4_specsRead 7 October 2026Google Store sells Versa 4 at 199.95 USD on the access date. That is a current price, not the launch price.

Available1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Garmin Vivoactive 59Spec databasethe5krunner.com/specs/garmin/vivoactive-6Read 7 October 2026Exact General table explicitly names Vivoactive 5 as predecessor. Canonical existing product checked. No speculative successor stored.27Maker product pagegarmin.com/nl-NL/blogRead 23 October 2026Garmin's Dutch blog calls the vivoactive 6 the successor of the popular vivoactive 5.

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$229.954Press releaseblog.google/products-and-platforms/devices/fitbit/fitbit-sense-2-versa-4Read 6 October 2026Versa 4 is now available for $229.95 (USD). The Aug 24, 2022 announcement gives the same price. No euro launch price was found in a maker source.

$299.995Press releasegarmin.com/en-US/newsroom/press-release/wearables-health/meet-vivoactive-6-the-latest-health-and-fitness-smartwatch-from-garminRead 5 October 2026Maker explicitly publishes unqualified US suggested retail 299.99 USD for original four finishes. Later colour/strap combinations do not inherit variant launch prices.

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

US, GB, DE, EE2Maker product pagestore.google.com/us/product/fitbit_versa_4_specsRead 7 October 2026US, GB and DE maker stores offer the model. EE is a documented archived Beet retail listing, not a current-stock assertion.10Maker product pagestore.google.com/gb/product/fitbit_versa_4_specsRead 7 October 2026GB store offers Versa 4 at GBP 179.99 with Buy and all four colours. Current price is not a launch price.11Maker product pagestore.google.com/de/product/fitbit_versa_4_specsRead 7 October 2026DE store offers Versa 4 at EUR 199.95 with Kaufen and all four colours. Current price is not a launch price.19Retailer pagephotopoint.ee/en/sports-watches/3626308-fitbit-versa-4-smart-watch-nfc-gps-satellite-amoled-touchscreen-heart-rate-monitor-activityRead 7 October 2026Exact Beet FB523RGRD SKU was listed by Estonian retailer with Estonia delivery. Listing is now archived. This documents historical market scope rather than current stock.

NZ, US1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026Exact regional storefront establishes NZ. Original US maker launch separately establishes US.4Press releasegarmin.com/en-US/newsroom/press-release/wearables-health/meet-vivoactive-6-the-latest-health-and-fitness-smartwatch-from-garminRead 5 October 2026

ColoursiThe maker's own colour names

Black / Graphite Aluminum, Waterfall Blue / Platinum Aluminum, Pink Sand / Copper Rose Aluminum, Beet Juice / Copper Rose Aluminum2Maker product pagestore.google.com/us/product/fitbit_versa_4_specsRead 7 October 2026

Slate with Black Band, Metallic Pink Dawn with Bone band, Lunar Gold with Bone Band, Metallic Jasper Green with Jasper Green Band, Metallic Pink Dawn with Pink Dawn Band, Slate with Pebble Grey Band1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Segment

Smartwatch2Maker product pagestore.google.com/us/product/fitbit_versa_4_specsRead 7 October 2026Page title: Fitbit Versa 4 Smartwatch. The Aug 24, 2022 Fitbit blog calls it a fitness smartwatch.

Smartwatch1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

OS updates promisediYears of explicitly promised OS updates. A security-only support period does not establish an OS-upgrade promise.

Not available

Not available

Security updates untiliExact end date published for security-update support of this model. Do not calculate it from a stated number of years. A security-only period does not promise OS upgrades.

Not available

Not available

Case

8 of 8 differ

Case sizeiMarketed case-size options. The marketed size can differ from physical case height, such as ceramic editions. Base dimensions describe the smallest base-material case.

Not available

42mm6Spec databasethe5krunner.com/specs/garmin/vivoactive-6Read 5 October 2026Published marketed single 42 mm case. Exact physical 42.2 mm comes from maker.

Case shape

Rectangular7Reviewtechradar.com/reviews/fitbit-versa-4Read 6 October 2026Design and display: a friendly-looking square-faced watch. The Google Store gives equal 40.5 mm length and width.

Round1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Case materialiMaterial of the housing body, not just the bezel. Use Mixed when the maker describes a mixture of housing/frame materials. Read the published-material field for the parts and proportions.

Aluminium1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Materials: The housing and buckle on Versa 4 are made of aluminum.

Fibre-reinforced polymer1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Case material (as published)

Aluminum1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026

Fibre-reinforced polymer housing. Anodised aluminium bezel.1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026Exact General table distinguishes fibre-reinforced polymer housing from anodised aluminium bezel.

BackiMaterial of the back of the smallest base-material case. Other materials or regional editions can differ. See source notes.

Plastic7Reviewtechradar.com/reviews/fitbit-versa-4Read 6 October 2026Design and display: the bezel is aluminum and the rear is plastic. Fitbit publishes no back material.

Not available

Case dimensionsiPhysical case height, width and thickness. The source note states exclusions such as the heart-rate sensor protrusion.

Height40.5Width40.5Thickness11.2mm(1.6 × 1.6 × 0.4 in)2Maker product pagestore.google.com/us/product/fitbit_versa_4_specsRead 7 October 2026Dimensions and weight: Length 40.5 mm, Width 40.5 mm, Height 11.2 mm. Height is stored as thickness. The listed weight of 37.64 g does not say whether it includes the band, so neither weight field is filled.

Height42.2Width42.2Thickness10.9mm(1.7 × 1.7 × 0.4 in)1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026Physical Size table gives 42.2 x 42.2 x 10.9 mm. Thickness inclusion of sensor projection is not separately stated.

Weight (case only)iWatch body without a strap. An unqualified published weight must not be assumed to exclude the strap.

Not available

23g(0.8 oz)1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026Body-only mass explicitly precedes separate mass with included band.

Weight with strapiWatch with the stated strap attached. Strap material and case size belong in the source note. Reviewer measurements belong in measured fields.

Not available

36g(1.3 oz)1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026Published complete watch mass with supplied silicone band. Leather packages excluded.

Durability

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Water resistanceiStatic water-pressure rating in atmospheres. It is not a safe swimming or diving depth. Diving limits are listed separately.

5ATM1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Environmental conditions: Water resistant up to 50 meters. Fitbit publishes no ATM figure. 50 m equals the 5 ATM static pressure rating.12Maker product pagestore.google.com/gb/magazine/google_pixel_watch_compareRead 7 October 2026Maker comparison explicitly publishes 5 ATM for Versa 4. The existing value is now directly maker-supported, without deriving pressure from metres.

5ATM3Owner's manualwww8.garmin.com/manuals/webhelp/GUID-8C2C402F-55AC-431F-9CF2-1442B89CE149/EN-US/vivoactive_6_OM_EN-US.pdfRead 5 October 2026

Water resistance standard

IEC 605291Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Manual printed page 74 explicitly rates FB523 IPX8 under IEC 60529 up to 50 metres. IEC 60529 applies to water ingress, not an inferred ISO pressure or diving test. Maker comparison independently publishes 5 ATM.

Not available

Dust and water rating

IP6X, IPX81Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026IP Rating section: IPX8 under IEC 60529 up to a depth of 50 meters, and IP6X dust-tight. Stored as the two published codes.

Not available

Dive rating

Not available

Not available

Max dive depthiMaker-rated depth for the stated diving use, not a conversion from the water-resistance pressure rating.

Not available

Not available

MIL-STD-810iMaker claim that the watch was tested against specified MIL-STD-810 methods. It is not a guarantee for every military-standard test.

Not available

Not available

MIL-STD-810 tests

Not available

Not available

Operating temperatureiPublished operating range. Source notes identify on-wrist limits and other operating conditions. Storage or charging limits are excluded.

Min-10Max45°C1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Environmental conditions table: operating temperature 14 to 113 F (-10 to 45 C). Non-operating and charging (0 to 35 C) ranges excluded. The Google Store specs page prints -14 to 113 F, which conflicts. The manual table, which states both units, is used.

Min-20Max60°C3Owner's manualwww8.garmin.com/manuals/webhelp/GUID-8C2C402F-55AC-431F-9CF2-1442B89CE149/EN-US/vivoactive_6_OM_EN-US.pdfRead 5 October 2026Specifications printed page 87. Operating range is separate from USB charging 0-45 C.

Display

2 of 14 differ

Display type

OLED2Maker product pagestore.google.com/us/product/fitbit_versa_4_specsRead 7 October 2026

OLED1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Display type (as published)

AMOLED2Maker product pagestore.google.com/us/product/fitbit_versa_4_specsRead 7 October 2026Display: AMOLED display, Corning Gorilla Glass 3.

AMOLED1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Screen sizeiPublished active display diagonal for a rectangular display, or diameter for a round display. Do not calculate it from pixels or display area.

1.58in(4 cm)6Reviewpcmag.com/reviews/fitbit-versa-4Read 6 October 2026Both feature a 1.58-inch AMOLED display (Versa 4 and Sense 2). Fitbit publishes no diagonal. Android Central, Trusted Reviews and Stuff state the same 1.58 inches.

1.2in(3 cm)1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Resolution

336 × 336px6Reviewpcmag.com/reviews/fitbit-versa-4Read 6 October 2026The 336-by-336-pixel display. TechRadar and Android Central state 336 x 336 as well. No pixel density is stored because none is published.7Reviewtechradar.com/reviews/fitbit-versa-4Read 6 October 2026The screen is a 336 x 336 pixel OLED just like the Versa 3's.

390 × 390px1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Pixel densityiPublished pixel density. A rectangular diagonal formula must not be applied to a round display.

Not available

Not available

Display area

Not available

Not available

Touchscreen

Yes1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Navigate Versa 4: Versa 4 has a color AMOLED touchscreen display and 1 button.

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Max refresh rateiHighest published display refresh rate in active operation.

Not available

Not available

Min refresh rateiLowest published display refresh rate, usually in always-on mode. It is not the active-use minimum unless stated.

Not available

Not available

Peak brightnessiMaker peak-brightness claim. It may apply to a small area or bright ambient light. Full-screen limits and battery/temperature conditions belong in source notes.

Not available

Not available

Minimum brightness

Not available

Not available

Always-on display

Yes1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Adjust always-on display section.

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Display cover

Gorilla Glass2Maker product pagestore.google.com/us/product/fitbit_versa_4_specsRead 7 October 2026

Gorilla Glass1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Display cover (as published)

Corning Gorilla Glass 32Maker product pagestore.google.com/us/product/fitbit_versa_4_specsRead 7 October 2026

Corning Gorilla Glass 31Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Platform

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Platform

Proprietary3Press releaseblog.google/products-and-platforms/devices/fitbit/versa-4-sense-2Read 6 October 2026

Proprietary11Spec databasegadgetsandwearables.com/technical-specs/garmin-vivoactive-6Read 7 October 2026Exact device Operating system row says Garmin proprietary. Current maker Connect IQ ecosystem corroborates. No Wear OS or Linux inference. Incorrect secondary screen size/bezel or training rows do not override maker facts.

OS at launch

Fitbit OS3Press releaseblog.google/products-and-platforms/devices/fitbit/versa-4-sense-2Read 6 October 2026Powered by the new Fitbit OS. No version number is published.

Garmin proprietary OS11Spec databasegadgetsandwearables.com/technical-specs/garmin-vivoactive-6Read 7 October 2026Exact Daily smart features row labels operating system at launch Garmin proprietary. Launch firmware number is not stated and not guessed.

Software

Not available

Not available

Latest OS

Fitbit OS, firmware 220.3113Maker product pagesupport.google.com/googlehealth/answer/14236725Read 7 October 2026Latest maker-listed Versa 4 device firmware on access date. No unreported Fitbit OS major version is assigned. Updates are phased.

Garmin software 18.2912Maker product pageforums.garmin.com/sports-fitness/healthandwellness/f/vivoactive-6-series/443701/vivoactive-6-software-version---18-29Read 7 October 2026Current exact-model announcement by Garmin-Zac states 18.29 at 100% Release. September 2026 rollout through Garmin Connect Mobile/Express. This is stable device software, not Connect IQ API level or GPS module firmware, and not a beta. No update was performed.

Works with

iOS, Android2Maker product pagestore.google.com/us/product/fitbit_versa_4_specsRead 7 October 2026

iOS, Android1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Phone requirement

Google Health app on a compatible device running Apple iOS 16.4 or higher or Android OS 11.0 or higher2Maker product pagestore.google.com/us/product/fitbit_versa_4_specsRead 7 October 2026Requirements section, current on the access date. The 2022 launch requirement may have been lower.

Not available

App store

No6Reviewpcmag.com/reviews/fitbit-versa-4Read 6 October 2026The Versa 4 does not support third-party app downloads, with the exception of watch faces.

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Voice assistants

Amazon Alexa1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Voice Assistant: Amazon Alexa Built-in. Needs the phone app running in the background. Not available in all countries.

Not available

Chipset

Not available

Not available

Process

Not available

Not available

CPU cores

Not available

Not available

CPU configuration

Not available

Not available

Max CPU clock

Not available

Not available

GPU

Not available

Not available

Low-power coprocessor

Not available

Not available

Memory

1 of 2 differ

RAMiKeep published GB values as stated. Convert a source explicitly labelled MB using 1000 MB per GB and preserve its original figure and unit in the note. Do not assume MB means MiB. Convert explicit MiB or GiB to decimal GB through their byte definitions, recording the conversion in the note. This normalization does not establish an exact physical byte count.

Not available

Not available

StorageiTotal built-in storage the maker states, in decimal GB. Space available to the user is lower and goes in the source note. A figure the maker gives only as available space is not stored.

Not available

8GB1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Health sensors

5 of 8 differ

Heart rate sensor

Multi-path optical heart rate sensor1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Sensors and Components: Multi-path optical heart rate tracker. Google Store spells it Multi-path optical heart rate sensor.

Garmin Elevate wrist heart rate monitor1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

ECG capabilityiElectrical heart sensing hardware with an ECG capability. The ECG app can require an eligible country, age and paired phone.

No4Press releaseblog.google/products-and-platforms/devices/fitbit/fitbit-sense-2-versa-4Read 6 October 2026The ECG app is named for Sense 2 only, while Irregular Heart Rhythm Notifications are on both watches. Versa 4 has no electrical heart sensor in its sensor list.6Reviewpcmag.com/reviews/fitbit-versa-4Read 6 October 2026The Sense 2 adds an electrocardiogram (ECG) sensor.

No7Reviewlivescience.com/health/exercise/garmin-vivoactive-6-reviewRead 5 October 2026Exact hardware discussion expressly cannot take ECG readings.

Blood oxygen sensingiBlood-oxygen sensing capability. App availability and medical status vary by market.

Yes1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Sensors and Components: red and infrared sensors for oxygen saturation (SpO2) monitoring. Not available in all countries and not for medical use.

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Skin temperature sensingiA sensor or supported function that measures skin temperature. It is not a core-body thermometer.

Yes1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Track your sleep and Advanced health metrics: skin temperature variation from personal baseline. It reports variation only, not an absolute temperature.2Maker product pagestore.google.com/us/product/fitbit_versa_4_specsRead 7 October 2026Sensors and components: Device temperature sensor (skin temperature variation available in the Google Health app). Variation only, not in all markets.

No13Maker product pagegarmin.com/en-GB/which-watch/wellness-tracking/compareRead 7 October 2026Original current maker wellness comparison header identifies Vivoactive 6. Skin temperature cell is empty while adjacent Venu 4/X1 cells have checks. Tom’s Guide explicitly states no onboard skin-temperature sensor. Ambient/internal activity temperature and external tempe are separate. Original public var content table read.25Reviewtomsguide.com/wellness/smartwatches/i-wore-the-garmin-vivoactive-6-for-a-month-and-it-has-nearly-everything-i-want-in-a-smartwatchRead 7 October 2026Exact model review expressly states there is no onboard skin-temperature sensor. Independently corroborates the original maker wellness comparison matrix. Core/body and external ambient temperatures are different functions.

Blood pressure featureiPublished blood-pressure feature category. Hypertension notifications are not numerical blood-pressure readings.

None14Spec databasegadgetsandwearables.com/technical-specs/fitbit-versa-4Read 7 October 2026Explicit absence of blood-pressure feature. Maker comparison also lacks blood-pressure trends.

Not available

Body composition sensor

Not available

Not available

Skin conductance (EDA)

No3Press releaseblog.google/products-and-platforms/devices/fitbit/versa-4-sense-2Read 6 October 2026The continuous EDA (cEDA) Body Response sensor is described for Sense 2 only. Versa 4 has no EDA sensor in its own sensor list.6Reviewpcmag.com/reviews/fitbit-versa-4Read 6 October 2026The Sense 2 adds a cEDA sensor and an ECG sensor that the Versa 4 lacks.

Not available

Medical clearancesiNamed regulatory clearances and their jurisdiction. General water resistance or an ECG sensor does not establish medical clearance.

Irregular Heart Rhythm Notifications: FDA clearance, Irregular Heart Rhythm Notifications: EU clearance4Press releaseblog.google/products-and-platforms/devices/fitbit/fitbit-sense-2-versa-4Read 6 October 2026Both of these tools have FDA and EU clearance: the Sense 2 ECG app and the Irregular Heart Rhythm Notifications on both watches. Select countries only, not for people under 22 or with known AFib.

Not available

Motion and environment sensors

3 of 9 differ

Accelerometer

Yes1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Accelerometer range

Not available

Not available

Gyroscope

No12Maker product pagestore.google.com/gb/magazine/google_pixel_watch_compareRead 7 October 2026Versa 4 column explicitly lacks the gyroscope.

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Barometric altimeter

Yes1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Sensors and Components: Altimeter, which tracks altitude changes. Restart section names a small hole on the device for the altimeter, which is the pressure-sensor vent. Published only as Altimeter.

No6Spec databasethe5krunner.com/specs/garmin/vivoactive-6Read 5 October 2026Explicitly no barometric altimeter. No floor-climb sensor inherited from Venu.

Compass

No12Maker product pagestore.google.com/gb/magazine/google_pixel_watch_compareRead 7 October 2026Versa 4 column explicitly lacks the compass.

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Ambient light sensor

Yes1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Depth gauge

Not available

Not available

Depth gauge rangeiPublished measurement range of the depth gauge, distinct from maximum diving depth and water-pressure resistance.

Not available

Not available

Water temperature sensor

Not available

Not available

Health and fitness

4 of 5 differ

Health featuresiSupported health functions with country, phone and subscription restrictions in the source notes. Upcoming functions are not counted as available.

Continuous heart rate, Heart rate alerts, Irregular rhythm notifications, Blood oxygen app, Heart rate variability, Sleep tracking, Sleep stages, Stress tracking, Readiness score, Cycle tracking1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Today app stats: heart rate, oxygen saturation, readiness, stress management score, menstrual health. Track your sleep: sleep stages. Receive heart-rate notifications: high and low heart rate. Advanced health metrics: heart-rate variability. Daily readiness and some detail need Fitbit Premium per the maker blog.3Press releaseblog.google/products-and-platforms/devices/fitbit/versa-4-sense-2Read 6 October 202624/7 heart rate monitoring, sleep tracking and Stress Management Score.4Press releaseblog.google/products-and-platforms/devices/fitbit/fitbit-sense-2-versa-4Read 6 October 2026Irregular Heart Rhythm Notifications on both watches.

Continuous heart rate, Heart rate alerts, Blood oxygen app, Heart rate variability, Sleep tracking, Sleep stages, Stress tracking, Cycle tracking2Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026Exact Health & Wellness table and manual definitions. Sleep HRV and sleep stages are distinct. Body Battery is energy monitoring, not an inferred training-readiness score. Pulse Ox is wellness monitoring and unavailable in some countries.

Fitness featuresiSupported workout functions. A sport-profile name alone does not prove advanced metrics such as running power or running dynamics. Trackback follows the recorded route back to the start. A compass arrow that points straight to the start does not count.

Automatic workout detection, VO2 max, Pool swim, Interval workouts, Turn-by-turn navigation1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Track your exercise automatically (SmartTrack, 15 minute minimum). Exercise settings list Pool Length and Interval. Google Maps app gives turn-by-turn directions and needs the paired phone nearby with the app running. View your cardio fitness score in the Fitbit app (stored as vo2_max, see the Google Health VO2 max help page).9Maker product pagesupport.google.com/googlehealth/answer/14237924Read 6 October 2026Learn about your VO2 max: tap VO2 max (formerly known as cardio fitness score). The Versa 4 manual names the cardio fitness score. VO2 max is estimated during outdoor runs with GPS.

Automatic workout detection, VO2 max, Recovery advice, Running dynamics, Pool swim, Open water swim, Strength rep counting, Interval workouts, Golf courses, Running power, Route navigation, Trackback2Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026Matching current maker technical table confirms named metrics. Sport-profile names alone are not metric evidence. Current exact owner manual separately confirms running power, course navigation and TracBack. No feature is borrowed from a sibling watch or conflicting secondary database.3Owner's manualwww8.garmin.com/manuals/webhelp/GUID-8C2C402F-55AC-431F-9CF2-1442B89CE149/EN-US/vivoactive_6_OM_EN-US.pdfRead 5 October 2026Current exact manual page 57 expressly supports running power from watch sensors or compatible dynamics accessory. Pages 70-73 support saved-course navigation and TracBack along the travelled route. These current software capabilities are not asserted as launch features.

Sport profilesiPublished count of distinct sport/activity profiles. A claim such as 180+ is not an exact integer count.

Not available

Not available

Dive modesiActual supported dive modes. Water resistance or a depth app alone does not establish decompression-capable scuba support.

Not available

Snorkel23Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 7 October 2026Exact current maker Activity profiles table, On the water row explicitly lists Snorkeling. Stored named surface-snorkeling activity profile only, as confirmed by main. No depth gauge, decompression, scuba gas mode or rated operating dive depth is implied. 5 ATM is not converted to safe diving depth.

External sensorsiTypes of external workout sensors the watch can pair with. GPS reception, phone data and built-in sensors do not qualify.

Not available

Heart rate strap, Speed and cadence, Foot pod3Owner's manualwww8.garmin.com/manuals/webhelp/GUID-8C2C402F-55AC-431F-9CF2-1442B89CE149/EN-US/vivoactive_6_OM_EN-US.pdfRead 5 October 2026Matching Wireless Sensors table. Vivoactive supports external HR, speed/cadence and foot pods. A generic ANT+ radio does not prove additional sensor classes.

Safety

3 of 6 differ

Fall detectioniAutomatic fall detection. Incident detection restricted to recorded workouts is not counted as general fall detection.

No12Maker product pagestore.google.com/gb/magazine/google_pixel_watch_compareRead 7 October 2026Versa 4 column explicitly lacks general fall detection.

No14Owner's manualwww8.garmin.com/manuals/webhelp/GUID-8C2C402F-55AC-431F-9CF2-1442B89CE149/EN-US/vivoactive_6_OM_EN-US.pdfRead 7 October 2026Complete Safety and Tracking Features section says incident detection only during certain outdoor GPS activities and requires a connected phone. Schema explicitly excludes workout-only incident detection from general fall detection. No all-day fall monitoring claimed. Current September maker update reserves new all-day fall detection for Venu 4.

Car crash detection

No12Maker product pagestore.google.com/gb/magazine/google_pixel_watch_compareRead 7 October 2026Versa 4 column explicitly lacks car crash detection.

Not available

Emergency SOSiA manual emergency alert to emergency services or preset contacts. Source notes identify the recipient, paired-phone requirement and country limits. Satellite is listed separately.

No12Maker product pagestore.google.com/gb/magazine/google_pixel_watch_compareRead 7 October 2026Versa 4 column explicitly lacks manual emergency SOS.

Yes3Owner's manualwww8.garmin.com/manuals/webhelp/GUID-8C2C402F-55AC-431F-9CF2-1442B89CE149/EN-US/vivoactive_6_OM_EN-US.pdfRead 5 October 2026Assistance sends location/message to configured emergency contacts through a paired phone with data coverage. No standalone satellite or cellular emergency call inferred.

Emergency sireniPublished or measured siren sound level in decibels. Audible distance alone does not establish this value. Measurement distance belongs in source notes.

Not available

Not available

Live location sharingiShares live location during supported use. A paired phone or data subscription may be required.

Not available

Yes3Owner's manualwww8.garmin.com/manuals/webhelp/GUID-8C2C402F-55AC-431F-9CF2-1442B89CE149/EN-US/vivoactive_6_OM_EN-US.pdfRead 5 October 2026Safety/tracking sections require Garmin Connect, a paired compatible phone and data coverage.

Dedicated LED flashlightiA dedicated hardware LED flashlight. Lighting the display white is not counted.

No14Spec databasegadgetsandwearables.com/technical-specs/fitbit-versa-4Read 7 October 2026Explicit absence of dedicated LED flashlight. Display illumination is not that hardware feature.

No13Maker product pagegarmin.com/en-GB/which-watch/wellness-tracking/compareRead 7 October 2026Exact maker Built-in flashlight comparison row is absent for Vivoactive 6 and checked for Venu 4/X1. Current manual Using the Flashlight Screen explicitly turns the screen into a flashlight. No dedicated hardware LED inferred from the screen feature.26Reviewoutdoorgearlab.com/reviews/camping-and-hiking/gps-watch/garmin-vivoactive-6Read 7 October 2026Exact review Extra Features describes a screen-based flashlight and expressly contrasts it with dedicated LED flashlights on other Garmin watches. Original manual Using the Flashlight Screen and exact maker comparison matrix corroborate absence of a dedicated hardware LED.

Positioning

2 of 3 differ

PositioningiPublished satellite systems and signal bands. Do not infer bands from dual-frequency support alone.

GPS, GLONASS1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Sensors and Components: Built-in GPS receiver + GLONASS. Dynamic GPS can use the phone's GPS instead to save battery. No band or dual-frequency claim.

GPS, GLONASS, Galileo, QZSS, BeiDou1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Dual-band GNSSiMaker-stated dual-frequency satellite reception. Supported constellations and signal bands are listed separately.

Not available

No7Reviewlivescience.com/health/exercise/garmin-vivoactive-6-reviewRead 5 October 2026Exact review explicitly lacks dual-band GPS. No chipset-based assumption.

Offline mapsiMap data stored on the watch and usable without live phone data. GPX routes or breadcrumb tracks alone are not offline maps.

No14Spec databasegadgetsandwearables.com/technical-specs/fitbit-versa-4Read 7 October 2026Explicit no offline maps. Maker manual requires phone navigation and background app. Directions are not stored cartographic maps.

No15Reviewdcrainmaker.com/2025/04/garmin-vivoactive-6-details-hands-everything.htmlRead 7 October 2026Exact base watch hands-on explicitly no maps on the watch and breadcrumb course trail instead. Current manual course/TracBack instructions corroborate. Garmin Google Maps Android phone app integration is not stored offline map data.

Connectivity

6 of 15 differ

BluetoothiPublished Bluetooth support for this model. The version is recorded separately. Unknown version does not mean the radio is absent.

Not available

Not available

Bluetooth version

5.01Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Wireless technology: Bluetooth 5.0 radio transceiver and NFC chip. Wi-Fi hardware is listed as deactivated and cannot be turned on, so no Wi-Fi standard is stored.

Not available

Wi-FiiPublished Wi-Fi support for this model. The standard and bands are recorded separately. Unknown standard does not mean Wi-Fi is absent.

Not available

Yes16Regulatory filingstatic.garmin.com/pumac/Vivoactive%C2%A06.pdfRead 7 October 2026The same compilation declares WLAN 802.11b/g/n, so a Wi-Fi radio is fitted.

Wi-Fi standard

Not available

Wi-Fi 416Regulatory filingstatic.garmin.com/pumac/Vivoactive%C2%A06.pdfRead 7 October 2026Original maker-hosted commercial Vivoactive 6/A04951 certification compilation. Declared WLAN mode 802.11b/g/n HT20 establishes Wi-Fi 4. Wi-Fi 5/6/7 not inferred from firmware version. EU DoC independently maps A04951 to Vivoactive 6.

Wi-Fi bands

Not available

2.4 GHz16Regulatory filingstatic.garmin.com/pumac/Vivoactive%C2%A06.pdfRead 7 October 2026Commercial-model SUBTEL table expressly gives Wi-Fi 2412–2462 MHz. FCC RF inventory includes only WLAN 2.4 GHz. Regional enabled channels differ, but only 2.4 GHz band is published.

CellulariTrue when a cellular edition is sold. A variant row states whether that individual model has cellular hardware.

No8Reviewtomsguide.com/reviews/fitbit-versa-4Read 7 October 2026Fitbit's watches don't have cellular support. Only one radio configuration (FB523, Bluetooth and NFC) exists in the manual.

No16Regulatory filingstatic.garmin.com/pumac/Vivoactive%C2%A06.pdfRead 7 October 2026Complete A04951 declared transmitter inventory contains Wi-Fi, Bluetooth, ANT and NFC, no cellular modem. Digital Citizen expressly says no LTE mobile connectivity available, with no sold cellular edition found across complete six-SKU maker range. Each NZ variant explicitly false.24Reviewandroidcentral.com/wearables/garmin/garmin-vivoactive-6-vs-google-pixel-watch-3Read 7 October 2026Exact comparison explicitly says LTE option is not available on Vivoactive 6 at all. Common maker full SKU inventory and declared A04951 radio modules corroborate marketed absence.

Network

Not available

Not available

4G bandsiPublished LTE bands for the stated regional cellular model. Do not transfer bands to another region or Wi-Fi-only model.

Not available

Not available

5G bandsiPublished 5G NR bands for the stated regional cellular model. RedCap support does not establish conventional full-bandwidth phone 5G.

Not available

Not available

NFCiSome regions sell an NFC edition, so it is per variant.

Yes1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026

Yes16Regulatory filingstatic.garmin.com/pumac/Vivoactive%C2%A06.pdfRead 7 October 2026Commercial-model certification Modules row explicitly NFC and 13.56 MHz. Maker Garmin Pay claim is separate.

Contactless payments

Yes1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Payment services

Google Wallet1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Contactless Payments: set up Google Wallet in the app. The manual also names the legacy Fitbit Pay app, which Google is phasing out. Card, bank and country limits apply.

Garmin Pay1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Ultra-wideband

No12Maker product pagestore.google.com/gb/magazine/google_pixel_watch_compareRead 7 October 2026Versa 4 column explicitly lacks UWB radio.

No11Spec databasegadgetsandwearables.com/technical-specs/garmin-vivoactive-6Read 7 October 2026Exact UWB row expressly No. Complete manufacturer A04951 declared radio inventory independently lists NFC, ANT, Bluetooth BR/EDR/LE and 2.4 GHz Wi-Fi, with no UWB hardware. Model identity proved by original EU DoC. This is not inferred from another Garmin device.

Satellite

None12Maker product pagestore.google.com/gb/magazine/google_pixel_watch_compareRead 7 October 2026No satellite SOS. Published transmitters are Bluetooth/NFC. GPS reception is separate.

None16Regulatory filingstatic.garmin.com/pumac/Vivoactive%C2%A06.pdfRead 7 October 2026Complete declared transmitter inventory has no satellite transmitter. GNSS receivers do not imply communications. Safety manual needs phone data, and remote inReach features require a separate inReach communicator. Each base NZ variant has no standalone satellite communication.

ANT+

Not available

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Audio

4 of 4 differ

Speaker

Yes1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Sensors and Components lists Speaker and Microphone. The Google Store rates the speaker at 75 dB SPL at 10 cm. That is not an emergency siren.

Not available

Microphones

Not available

017Reviewoutdoorgearlab.com/reviews/camping-and-hiking/gps-watch/garmin-vivoactive-6Read 7 October 2026Exact standard, only-size watch review Extra Features explicitly no microphone for calls. Gadgets & Wearables exact Microphone No and Android Central exact hardware omissions corroborate total absence. No voice recorder or local voice assistant in complete maker manual. Speaker value remains omitted because another review contradicts speaker absence.24Reviewandroidcentral.com/wearables/garmin/garmin-vivoactive-6-vs-google-pixel-watch-3Read 7 October 2026Exact Hardware and specs table Mic and speaker row No, and prose explicitly calls microphone a hardware omission. This corroborates zero physical microphones, not merely disabled voice calling. Inaccurate 390 x 309 typo in the display row does not override original maker resolution.

Calls on the watchiVoice-call capability of the marketed model, including sold cellular editions. Variant radio capability and paired-phone requirements still apply.

Phone only1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Answer or reject phone calls: on-wrist calls through the paired iPhone or Android phone, which must be nearby with the Fitbit app running. No cellular model exists.

None14Owner's manualwww8.garmin.com/manuals/webhelp/GUID-8C2C402F-55AC-431F-9CF2-1442B89CE149/EN-US/vivoactive_6_OM_EN-US.pdfRead 7 October 2026Receiving an Incoming Phone Call explicitly requires using the connected phone to talk. Accept/decline controls and Android text replies do not mean voice calls on the watch.

Music on the watchiPlays audio stored on the watch. Remote control of phone playback or streaming alone does not qualify.

No7Reviewtechradar.com/reviews/fitbit-versa-4Read 6 October 2026You can't store music on the watch. Tom's Guide also says you can't download music to the Versa 4.8Reviewtomsguide.com/reviews/fitbit-versa-4Read 7 October 2026You can't download music to the Versa 4 or install third-party apps.

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Controls

4 of 5 differ

ButtonsiPhysical controls used to operate the watch, excluding the rotating crown and strap-release buttons. A clickable rotating crown is counted only in Crown.

11Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Navigate Versa 4: color AMOLED touchscreen display and 1 button.

23Owner's manualwww8.garmin.com/manuals/webhelp/GUID-8C2C402F-55AC-431F-9CF2-1442B89CE149/EN-US/vivoactive_6_OM_EN-US.pdfRead 5 October 2026Printed page 6 complete overview diagram identifies START and BACK, two physical buttons.

Named operating buttonsiNames of operating buttons, excluding the crown and strap-release controls.

Button1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Maker calls the single operating control Button. Strap-release latches are excluded.

START button, BACK button3Owner's manualwww8.garmin.com/manuals/webhelp/GUID-8C2C402F-55AC-431F-9CF2-1442B89CE149/EN-US/vivoactive_6_OM_EN-US.pdfRead 5 October 2026Printed page 6 names START and BACK physical buttons in the complete overview diagram.

CrowniA crown that rotates to control the interface. A round push button that does not rotate is not a crown.

None1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026The controls are the touchscreen and 1 button. There is no rotating crown.

None14Owner's manualwww8.garmin.com/manuals/webhelp/GUID-8C2C402F-55AC-431F-9CF2-1442B89CE149/EN-US/vivoactive_6_OM_EN-US.pdfRead 7 October 2026Complete Overview and Using the Touchscreen describe only two push buttons START/BACK, taps and swipes. No rotating operating crown in the full controls inventory. A round push button does not count as crown.24Reviewandroidcentral.com/wearables/garmin/garmin-vivoactive-6-vs-google-pixel-watch-3Read 7 October 2026Design and display paragraph explicitly distinguishes Vivoactive 6 touchscreen and two hardware buttons from Pixel Watch 3 rotating crown. Original complete maker overview supplies the same control inventory.

Rotating bezeliPhysical rotation or touch gestures around the display edge. A fixed decorative bezel is None.

Not available

None14Owner's manualwww8.garmin.com/manuals/webhelp/GUID-8C2C402F-55AC-431F-9CF2-1442B89CE149/EN-US/vivoactive_6_OM_EN-US.pdfRead 7 October 2026Complete controls inventory uses two push buttons and touchscreen taps/swipes. Decorative anodised-aluminium bezel is fixed. No physical or touch rotation control in the complete operating instructions.

Gestures

Turn your wrist, Briefly cover the watch face with your opposite hand, Triple-tap the screen1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Manual screen-wake setting documents selectable wrist-turn wake. Printed page 22 says briefly covering the face turns the screen off, except when always-on display is enabled. Printed page 20 says triple-tap zoom works after Magnify is enabled. These are interface gestures, not unsupported inertial sensor features.

Raise and turn wrist to wake display, Cover display with palm to return to watch face and dim display14Owner's manualwww8.garmin.com/manuals/webhelp/GUID-8C2C402F-55AC-431F-9CF2-1442B89CE149/EN-US/vivoactive_6_OM_EN-US.pdfRead 7 October 2026Exact manual touchscreen instruction and Display and Brightness Settings Wake On Gesture row. These gestures operate the display/interface. No double-pinch or voice gesture inferred.

Battery and charging

9 of 13 differ

Battery capacityiPublished battery capacity for the stated case size. Rated and typical capacity are distinguished in source notes.

Not available

220mAh16Regulatory filingstatic.garmin.com/pumac/Vivoactive%C2%A06.pdfRead 7 October 2026A04951 FCC declared product accessory battery 361-00162-00 rating 3.87 V, 220 mAh. Stated component rating, not measured discharge or estimated from runtime. Original EU DoC explicitly connects A04951 to Vivoactive 6. Single-size base hardware only. Other model batteries are not transferred.

Claimed battery lifeiMaker endurance claims with distinct operating modes and case sizes. With solar describes augmentation of that estimate, not hardware capability. Use false for ordinary claims without solar augmentation, true for explicitly solar-aided claims, and omit it when solar qualification is unclear. Source notes state AOD, GNSS, music and solar conditions. Do not create a normal-use row from an AOD-only claim. Low power denotes the maker battery-saver mode. Keep its typical, light-use and always-on claims separate from standard-mode claims. GPS power saving identifies an intermediate reduced-accuracy GNSS saving preset. Source notes retain the maker's preset name and published conditions. Max battery GPS is the distinct maximum-saving claim. When the maker has only one GPS saving preset, it is GPS power saving.

AFitbit Versa 4

Mode	With solar	Hours (h)
Smartwatch	No	144
Always-on	No	72
GPS	No	12

Source5Maker product pagesupport.google.com/googlehealth/answer/14226518Read 6 October 2026Battery life table: Fitbit Versa 4* 6+ days, stored as 144 h as a minimum figure. Footnote *: always-on display and GPS need more frequent charging. If you turn on always-on display: Versa 4 up to 3 days (72 h). If you use built-in GPS continuously: Versa 4 up to 12 hours. The 2025 pre-production test footnote (**) belongs to Google Fitbit Air, not Versa 4.

BGarmin Vivoactive 6

Mode	With solar	Hours (h)
Smartwatch	No	264
Always-on	No	120
Low power	No	504
GPS	No	21
GPS, all systems	No	17
GPS, all systems with music	No	8

Source1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026Exact size table distinguishes smartwatch, always-on and GNSS/music modes. Days convert exactly to hours. Current owner manual corroborates non-AOD modes.

Smartwatch mode (claimed)iMaker normal-use smartwatch claim without solar. A watch with only an explicit AOD-mode claim has no value here. Workloads differ and source notes must be read.

144h=CalculatedFrom Claimed battery life

264h=CalculatedFrom Claimed battery life

AOD battery life (up to)iMaker claimed smartwatch endurance with the always-on display enabled and without solar, for the base case. Source notes preserve workload and case conditions. This is a claim, not a measured test or an AOD-off estimate.

72h=CalculatedFrom Claimed battery life

120h=CalculatedFrom Claimed battery life

GPS mode (claimed)iMaker regular GPS/GNSS activity claim without solar, for the base case. AOD, multi-band, music and power-saving conditions have separate rows when published.

12h=CalculatedFrom Claimed battery life

21h=CalculatedFrom Claimed battery life

Solar chargingiPublished solar charging hardware capability. An ordinary battery estimate without solar augmentation does not prove that the watch lacks solar charging hardware.

Not available

Not available

Charging methodiThe connection at the watch, not the cable end at the USB adapter. A proprietary inductive puck is not Qi unless interoperability is explicitly established.

Magnetic pins1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Charge your watch: the cable end attaches magnetically to the port on the back and its pins align with the port.

Proprietary plug1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Charging guidanceiPublished charging requirements, nominal estimates and compatibility guidance. Keep adapter ratings separate from power accepted by the watch.

Not available

Not available

Max charging power (watch)iPublished maximum charging power at the watch. Adapter rating or charger input power does not prove the power accepted by the watch.

Not available

Not available

Fast chargingiAn explicit fast-charging capability claim. A short charging time or high adapter wattage alone does not qualify.

Yes4Press releaseblog.google/products-and-platforms/devices/fitbit/fitbit-sense-2-versa-4Read 6 October 2026Fast charging gets you a full day's worth of battery in just 12 minutes.

Not available

Quick charge claimiMaker claim for usage from a short charge. Source notes identify the usage workload, such as normal use or sleep tracking.

Charge time12 minUse time24 h1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Charge Versa 4 for 12 minutes for 24 hours of battery life.

Not available

Charge 0 to 80% (claimed)iMaker claim for charging an empty battery to 80%. Charger and approximate qualifiers belong in source notes.

Not available

Not available

Full charge time (claimed)iMaker advertised nominal full-charge duration. Approximate or theoretical maker estimates are allowed, with their conditions in source notes. Partial-charge intervals do not qualify. Measured 0 to 100% tests have a separate field.

120min2Maker product pagestore.google.com/us/product/fitbit_versa_4_specsRead 7 October 2026Battery and power: Charge time (0-100%): Two hours. The manual says charging fully takes about 1-2 hours.

Not available

Measured

2 of 4 differ

Peak brightness (measured)iReviewer measurement. Source notes state screen area, mode and ambient light. A small-area peak claim cannot be replaced with a full-screen measurement.

Not available

Not available

Battery life (measured)iReviewer-observed mixed-use endurance. Source notes state case size, AOD, workout use and whether it was a complete discharge. Extrapolation from partial discharge is excluded.

Not available

Not available

Battery tests (measured)iReviewer-observed endurance, with case size and test settings in source notes. Partial-discharge projections are not stored as measured endurance.

AFitbit Versa 4

Not available

BGarmin Vivoactive 6

Test	Hours (h)
GPS activity	20

Source20Reviewoutdoorgearlab.com/reviews/camping-and-hiking/gps-watch/garmin-vivoactive-6Read 7 October 2026Exact review Standard model, One size only. Review Battery Life explicitly measured 20 hours in GPS-Only mode. Published testing method runs activity recording from full charge until empty. General comparison method keeps default settings, with exact review GPS-only mode explicit. AOD brightness, firmware, temperatures, sensors/music are not separately published. No 7%/hour projection or maker 21 h claim substituted. Only this full-cycle GPS row stored, mixed-use complete endpoints unproved.21Reviewoutdoorgearlab.com/topics/camping-and-hiking/best-gps-watch/how-we-testRead 7 October 2026Published method explicitly runs continuous activity recording from full charge until empty. This establishes actual complete discharge, not extrapolation from one-hour drain. Exact tested GPS-only mode and 20-hour value are in the model review.22Reviewoutdoorgearlab.com/topics/camping-and-hiking/best-gps-watchRead 7 October 2026Battery Life method says everything kept at default settings in battery tests. Exact model review separately identifies GPS-only rather than all-systems for the stored observed 20-hour test. No unpublished screen setting inferred.

Full charge time (measured)iReviewer measurement from empty to full, not 0-80% or a charge from 5%. Source notes name the charger and case size.

60min8Reviewtomsguide.com/reviews/fitbit-versa-4Read 7 October 2026Reviewer observed depleted-to-full charging using the proprietary USB-A-ended charging arrangement. Standard 40.5 mm Copper Rose review unit. USB power adapter, ambient temperature and firmware are unstated. This is a measured result, separate from the maker two-hour claim. Partial-discharge runtime projections are not added.

Not available

Strap

5 of 6 differ

Lug widthiDistance between standard strap attachment lugs, not the decorative width of a proprietary strap. Unknown for custom connectors unless the maker publishes lug width.

Not available

20mm1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Quick-release strapiThe supplied strap can be detached through its quick-release mechanism. Compatibility with quick-release replacement straps alone does not qualify.

Yes1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Change the band: slide the flat latch button toward the band and pull. Attach by pressing until it clicks. No tools.

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Strap systemiPublished attachment system and compatible case sizes. Proprietary connectors are distinguished from standard spring bars.

Proprietary latch connector. Fitbit Sense, Sense 2 and Versa 3 bands are compatible.1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Change the band: Fitbit Sense, Fitbit Sense 2, and Fitbit Versa 3 bands are compatible with Versa 4. Turn over Versa 4 and find the band latches. Slide the flat button toward the band to release the latch. Proprietary connector, no lug width published.

20 mm industry-standard quick-release bands18Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 7 October 2026Exact NZ sold SKU General Quick Release bands row explicitly Yes (20 mm, Industry standard). Existing supplied strap quick release and width preserved. Not QuickFit, and optional accessory fit range is not substituted for supplied 125–190 mm strap.

Strap materialiMaterial of the supplied strap for the stated package. Do not substitute material from another band sold separately.

Other1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Supplied classic band is elastomer. Other preserves that wording without guessing silicone, HNBR or fluoroelastomer.

Silicone1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Strap

Classic band2Maker product pagestore.google.com/us/product/fitbit_versa_4_specsRead 7 October 2026Maker box lists Classic band in small and large sizes. Manual printed page 57 states flexible durable elastomer. band_material=other preserves that published material without guessing a specific polymer.

Not available

Strap sizesiPublished wrist-circumference range for the stated strap or case. Source notes distinguish an overall compatible wrist range from one supplied strap size.

AFitbit Versa 4

Size	Wrist (min) (mm)	Wrist (max) (mm)
Small	140	180
Large	180	220

Source1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Band size table: Small 140-180 mm, Large 180-220 mm wrist circumference. The Google Store specs page prints Small 5.1-7 in and Large 6.5-8.6 in. The manual table is used.

BGarmin Vivoactive 6

Wrist (min) (mm)	Wrist (max) (mm)
125	190

Source1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Regulatory

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FCC ID

XRAFB5231Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026USA FCC statement: Model FB523, FCC ID XRAFB523. IC 8542A-FB523.

IPH-0495116Regulatory filingstatic.garmin.com/pumac/Vivoactive%C2%A06.pdfRead 7 October 2026Commercial Vivoactive 6/A04951 identity and every original FCC test-report cover explicitly IPH-04951. Exact physical hardware identifier, no sibling radio certification.

SAR limb (US)iPublished limb/wrist SAR for the stated base regional model under the US regime. Other case sizes or radio versions can differ. Head or body SAR is excluded.

Not available

0.31W/kg16Regulatory filingstatic.garmin.com/pumac/Vivoactive%C2%A06.pdfRead 7 October 2026Original FCC SAR report FA482809, printed page 4 Statement of Compliance. Highest published US extremity summary 0.31 W/kg, 10 g at 0 mm, date of test 2024-09-18. Wrist exposure method uses back of watch against phantom, printed page 21. Not EU 0.38 limb or torso 1.05. US summary precision retained rather than substituting detailed WLAN cell 0.312.

SAR limb (EU)iPublished limb/wrist SAR for the stated base regional model under the EU regime. Other case sizes or radio versions can differ. Head or body SAR is excluded.

Not available

0.38W/kg3Owner's manualwww8.garmin.com/manuals/webhelp/GUID-8C2C402F-55AC-431F-9CF2-1442B89CE149/EN-US/vivoactive_6_OM_EN-US.pdfRead 5 October 2026Exact Specifications printed page 87 publishes EU limb SAR 0.38 W/kg for this hardware case.

Other certifications

RED (2014/53/EU), UK Radio Equipment Regulations 2017, IEC 62368-1:20181Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Manual printed page 62 declares FB523 compliance with RED 2014/53/EU. Printed page 72 declares UK Radio Equipment Regulations 2017. Printed page 74 lists testing to IEC 62368-1:2018 safety certification. These are model declarations and safety tests, not medical, military or diving certifications.

EU RoHS 2011/65/EU and applicable amendments, EU Radio Equipment Directive 2014/53/EU, EU battery legislation 2008/98/EC as amended by (EU) 2023/154219Regulatory filingstatic.garmin.com/pumac/vivoactive%206_DoC-EU.pdfRead 7 October 2026Original signed manufacturer EU Declaration of Conformity, English first page. Exact Model Numbers A04951, vivoactive 6. Issued 2024-11-11, revised 2025-06-18. These are maker declared compliance claims, not medical clearances. No IP, military or diving standard inferred.

In the box

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In the box

Fitbit Versa 4, Classic band (small & large), Charging cable2Maker product pagestore.google.com/us/product/fitbit_versa_4_specsRead 7 October 2026

Vivoactive 6, USB-C charging/data cable, Documentation1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Power adapter in boxiA mains/USB power adapter is supplied. A charging cable, inductive puck or charging dock alone does not count.

No2Maker product pagestore.google.com/us/product/fitbit_versa_4_specsRead 7 October 2026What's in the box lists only Fitbit Versa 4, Classic band (small & large) and Charging cable. No power adapter.

No1Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026Complete exact-SKU box table has cable and documentation, no power adapter.

Links

Not compared

Product page

store.google.com/us/product/fitbit_versa_4_specs2Maker product pagestore.google.com/us/product/fitbit_versa_4_specsRead 7 October 2026

www.garmin.com/en-NZ/p/pn/010-02985-001Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026Public current maker page directly downloaded. Full exact-SKU specs and box tables read from GarminAppBootstrap. Boolean yes/no classes inspected. No authenticated data or bot restriction bypassed.

Spec sheet

store.google.com/us/product/fitbit_versa_4_specs2Maker product pagestore.google.com/us/product/fitbit_versa_4_specsRead 7 October 2026Online maker specification sheet for regulatory model FB523.

www.garmin.com/en-NZ/p/pn/010-02985-001Maker product pagegarmin.com/en-NZ/p/pn/010-02985-00Read 5 October 2026

Manual

storage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsK1Owner's manualstorage.googleapis.com/support-kms-prod/aMr9HIIq7XWrbNCLHQyr9sA3nP2Y6JUWITsKRead 7 October 2026Versa 4 User Manual Version 2.1, linked from the Fitbit user manuals help page (support.google.com/googlehealth/answer/14253977).

www8.garmin.com/manuals/webhelp/GUID-8C2C402F-55AC-431F-9CF2-1442B89CE149/EN-US/vivoactive_6_OM_EN-US.pdf3Owner's manualwww8.garmin.com/manuals/webhelp/GUID-8C2C402F-55AC-431F-9CF2-1442B89CE149/EN-US/vivoactive_6_OM_EN-US.pdfRead 5 October 2026Original exact owner manual, 102 pages. Printed page numbers used. No sibling model document.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

Warranty

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Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

1year15Maker product pagesupport.google.com/product-documentation/answer/14815834Read 7 October 2026Manufacturer contractual warranty for original new US Fitbit Versa 4 / FB523 retail units purchased before July 11, 2023: one year. Exact US Abt FB523BKBK-US also states one-year limited parts/labour warranty. The original maker contract separately gives two years for an EEA resident purchasing in the EEA, including the retained Estonian market. This scalar applies only to the stated US source-market contract, not all variants. Later purchases use the separate Google Hardware Warranty Center terms.16Retailer pageabt.com/Fitbit-Versa-4-Graphite-Aluminum-Black-Strap-Fitness-Smartwatch-24mm-FB523BKBKUS/p/182318.htmlRead 7 October 2026Exact new US FB523BKBK-US listing states one-year limited parts and labour warranty. This source-market claim is distinct from the maker two-year EEA contract and does not set the Estonian variant warranty.

1year10Maker product pagegarmin.com/en-NZ/legal/consumer-limited-warrantyRead 7 October 2026Current NZ contractual non-aviation product warranty is one year from purchase. Complete text read in original public HTML var content data. Statutory rights remain separate. Original-country service and possible independent distributor terms are retained in the policy, not claimed identical for every market.

Both are also in the API. Back to all smartwatches.