Smartwatches / Compare

Amazfit Active 3 Premium vs Garmin Forerunner 255

A

Product A: Amazfit

Active 3 Premium

73 of 150 known

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B

Product B: Garmin

Forerunner 255

81 of 150 known

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Only differences

AAmazfit Active 3 Premium

BGarmin Forerunner 255

General

6 of 10 differ

Series

Active1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026

Forerunner1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Product page title is Forerunner 255, running smartwatch, 46 mm.

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

W2559GL2N, W2559GL1N, W2559GL3N2Maker product pageus.amazfit.com/products/active-3-premium.jsRead 8 October 2026Public maker product data: Atlas Blue W2559GL2N is the reference. Apex Silver W2559GL1N and Aero White W2559GL3N are sold US colour configurations, not another hardware generation.

010-02641-011Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026US page for the 46 mm watch without music lists part number 010-02641-01 (Tidal Blue, $349.99). The Music toggle on the same page links the music watch to 010-02641-20, so music watches are other models. 255S is the 41 mm size, SKU 010-02641-02.

GTIN / EAN

850071618952, 850071618945, 8500716189692Maker product pageus.amazfit.com/products/active-3-premium.jsRead 8 October 2026Variant-specific maker barcodes: Atlas Blue 850071618952, Apex Silver 850071618945 and Aero White 850071618969.

Not available

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

26 February 20266Press releaseus.amazfit.com/blogs/news/amazfit-introduces-the-active-3-premium-turning-daily-movement-into-meaningful-progress-for-entry-level-runnersRead 8 October 2026

1 June 20223Press releasegarmin.com/en-US/newsroom/press-release/sports-fitness/garmin-celebrates-global-running-day-with-the-introduction-of-the-forerunner-255-seriesRead 11 October 2026Garmin release dated June 1, 2022.

Status

Not available

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

Not available

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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

Garmin Forerunner 2658Reviewdcrainmaker.com/2023/03/garmin-forerunner-review-amoled.htmlRead 11 October 2026Review: the Forerunner 265 series at first glance seems like an AMOLED version of the Forerunner 255, with several hardware differences. It follows the 255 in the Forerunner line.10Maker product pagegarmin.com/nl-NL/blogRead 23 October 2026Garmin's Dutch blog says the Forerunner 265 is the successor of the Forerunner 255.

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

$169.996Press releaseus.amazfit.com/blogs/news/amazfit-introduces-the-active-3-premium-turning-daily-movement-into-meaningful-progress-for-entry-level-runnersRead 8 October 2026US launch price 169.99 USD. The later 139.99 storefront sale price is not used.

$349.993Press releasegarmin.com/en-US/newsroom/press-release/sports-fitness/garmin-celebrates-global-running-day-with-the-introduction-of-the-forerunner-255-seriesRead 11 October 2026Suggested retail price $349.99 for Forerunner 255 and 255S. Music models are $399.99.

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

€349.994Press articlenextpit.de/news/garmin-forerunner-255-und-955-vorgestellt-touchscreen-mehr-akkuRead 11 October 2026nextpit.de, 1 June 2022: the Forerunner 255 costs 349,99 EUR in every size, the Music edition 50 EUR more. German price incl. VAT.

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

US2Maker product pageus.amazfit.com/products/active-3-premium.jsRead 8 October 2026

US, DE3Press releasegarmin.com/en-US/newsroom/press-release/sports-fitness/garmin-celebrates-global-running-day-with-the-introduction-of-the-forerunner-255-seriesRead 11 October 2026US release with US dollar suggested retail prices.4Press articlenextpit.de/news/garmin-forerunner-255-und-955-vorgestellt-touchscreen-mehr-akkuRead 11 October 2026German launch pricing in euros. Documented subset together with the US release.

ColoursiThe maker's own colour names

Atlas Blue, Apex Silver, Aero White2Maker product pageus.amazfit.com/products/active-3-premium.jsRead 8 October 2026

Tidal Blue1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026US store lists Tidal Blue for this model. Other regional colours exist but are not listed on this page.3Press releasegarmin.com/en-US/newsroom/press-release/sports-fitness/garmin-celebrates-global-running-day-with-the-introduction-of-the-forerunner-255-seriesRead 11 October 2026Release names tidal blue as a new colour.

Segment

Sport1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026Maker launch positions the model for structured running and hybrid training.

Sport1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Garmin presents it as a running smartwatch.

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

Not available

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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

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Case

5 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.

45mm1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026

46mm1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026

Case shape

Round1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026Round body outline in the exact Atlas Blue maker image, associated with SKU W2559GL2N in public product data.

Round1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs describe the display as a diameter and the pictured case is round.

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.

Stainless steel4Reviewwareable.com/reviews/amazfit-active-3-premium-review-a-budget-smartwatch-for-beginner-runnersRead 8 October 2026Design and display explicitly calls the 45 mm case stainless steel. This identifies the housing/frame, rather than borrowing Active 2 polymer-body materials.

Fibre-reinforced polymer6Reviewandroidcentral.com/wearables/garmin-forerunner-255-reviewRead 11 October 2026Review spec box: materials fiber-reinforced polymer. The maker lists only the bezel as fiber-reinforced polymer and no other case material.7Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-255Read 11 October 2026Spec table: fiber-reinforced polymer bezel and case, silicone strap.

Case material (as published)

Stainless steel frame1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026Technical Specifications > Design names the stainless steel frame. The rear-housing material is not specified here.

Fiber-reinforced polymer6Reviewandroidcentral.com/wearables/garmin-forerunner-255-reviewRead 11 October 2026Review spec box wording.7Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-255Read 11 October 2026Spec table wording.

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

Not available

Not available

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

Height45Width45Thickness11mm(1.8 × 1.8 × 0.4 in)1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026Technical Specifications > Design: height x width 45 x 45 mm, thickness 11 mm excluding the heart-rate sensor base.

Height45.6Width45.6Thickness12.9mm(1.8 × 1.8 × 0.5 in)1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs: Physical size 45.6 x 45.6 x 12.9 mm. Not stated whether the heart rate sensor bump is included.

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

38g(1.3 oz)1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026Published 38 g without strap. No unqualified reviewer weight is assumed to exclude or include the band.

Not available

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

Not available

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.

5ATM1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 20269Owner's manualcdn.multitronic.fi/media/2/b/mmo_140395205_1775822751_1988_183.pdfRead 8 October 2026Basic Parameters gives 5 ATM. Repair and Maintenance explicitly prohibits snorkeling/diving/scuba/high-speed water use despite a named snorkeling activity profile on the marketing page. No dive-capability value is stored.

5ATM1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs: Water rating 5 ATM.

Water resistance standard

ISO 22810:20101Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026

Not available

Dust and water rating

Not available

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.

Min0Max45°C9Owner's manualcdn.multitronic.fi/media/2/b/mmo_140395205_1775822751_1988_183.pdfRead 8 October 2026Basic Parameters: working temperature 0-45 C. Charging/storage restrictions are not substituted for the operating range.

Min-20Max60°C2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Specifications page 101: operating temperature -20 to 60 C. Charging range 0 to 45 C is excluded.

Display

10 of 14 differ

Display type

OLED1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026

MIP1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs: Display type sunlight-visible, transflective memory-in-pixel (MIP).

Display type (as published)

AMOLED1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026

Sunlight-visible, transflective memory-in-pixel (MIP)1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 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.

1.32in(3.4 cm)1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026

1.3in(3.3 cm)1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs: 1.3 inch (33 mm) diameter.

Resolution

466 × 466px1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026

260 × 260px1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs: 260 x 260 pixels.

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

353ppi1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026

Not available

Display area

Not available

Not available

Touchscreen

Yes1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026

No2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026The manual describes control only with the LIGHT, UP, DOWN, BACK and START/STOP buttons and never mentions touch input.

Max refresh rateiHighest published display refresh rate in active operation.

Not available

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

Not available

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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.

3,000nits1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026Maker peak up to 3000 nits, not a photometer test. Peak area and ambient-light test settings are not supplied.

Not available

Minimum brightness

Not available

Not available

Always-on display

Yes1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026

Not available

Display cover

Sapphire1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026

Gorilla Glass1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026

Display cover (as published)

Sapphire glass1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026

Corning Gorilla Glass 31Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs: Lens material Corning Gorilla Glass 3. Bezel material is fiber-reinforced polymer. Case material is not listed, so case_material is not stored.

Platform

4 of 15 differ

Platform

Proprietary4Reviewwareable.com/reviews/amazfit-active-3-premium-review-a-budget-smartwatch-for-beginner-runnersRead 8 October 2026Exact review discusses Zepp software and its own app store, rather than Wear OS/watchOS.5Maker product pageos.zepp.com/compatibility-zepp-os-6Read 8 October 2026Maker currently lists this model as compatible with its own Zepp OS 6 software ecosystem, classified as proprietary.

Proprietary1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Garmin watch software with downloadable Connect IQ watch faces, data fields and apps.

OS at launch

Not available

Not available

Software

Zepp OS4Reviewwareable.com/reviews/amazfit-active-3-premium-review-a-budget-smartwatch-for-beginner-runnersRead 8 October 2026Zepp software system and app ecosystem.5Maker product pageos.zepp.com/compatibility-zepp-os-6Read 8 October 2026Named maker software family Zepp OS. No launch version or patch number is inferred.

Not available

Latest OS

Zepp OS 65Maker product pageos.zepp.com/compatibility-zepp-os-6Read 8 October 2026Current maker compatibility list explicitly includes Active 3 Premium for Zepp OS 6. This establishes supported current major software, not an installed patch version or launch OS. Availability of individual OS 6 functions varies by watch.

Not available

Works with

iOS, Android1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026

iOS, Android1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026

Phone requirement

Android 7.0 or later, iOS 15.0 or later. Requires the Zepp app.9Owner's manualcdn.multitronic.fi/media/2/b/mmo_140395205_1775822751_1988_183.pdfRead 8 October 2026Maker Product Manual for A2558/A2559, Basic Parameters and pairing panel: Android 7 or iOS 15+. Preferred over the US product-page iOS 14 claim. A recent app version is required.

Not available

App store

Yes3Owner's manualsupport.amazfit.com/en/amazfit_active_3_premium/files/user-manual.pdf.pdfRead 8 October 2026Mini App installation and uninstallation, printed page 40: download/install through the Zepp app store. This is not support for native Spotify/Pandora streaming apps.

Yes1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs list Connect IQ downloadable watch faces, data fields and apps and an on-device Connect IQ store.

Voice assistants

Zepp Flow1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026Zepp Flow supports selected countries and languages. Compatible phone/app, connectivity and software requirements apply. Third-party streaming apps such as Spotify are not native watch apps.

Not available

Chipset

Not available

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Process

Not available

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CPU cores

Not available

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CPU configuration

Not available

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Max CPU clock

Not available

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GPU

Not available

Not available

Low-power coprocessor

Not available

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Memory

0 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.

4GB4Reviewwareable.com/reviews/amazfit-active-3-premium-review-a-budget-smartwatch-for-beginner-runnersRead 8 October 2026Smartwatch features describes available 4 GB storage for local music. Nominal 4 GB is independently published by the maker Taiwan page and the exact Run Testers spec list. Free user space can be lower.7Reviewtheruntesters.com/running-watches/amazfit-active-3-premium-reviewRead 8 October 2026Exact Active 3 Premium key specs explicitly gives Storage 4GB. Its malformed dimensions line is not imported.8Maker product pagetw.amazfit.com/products/active3premiumRead 8 October 2026Official maker listing for Active 3 Premium hardware A2559 publishes nominal 4 GB. No Taiwan NFC, warranty or regulatory value is imported to the US reference.

4GB1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs: Memory/History 4 GB. The manual lists up to 4 GB of music storage for Music models only.2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Music storage up to 4 GB applies to Music models.

Health sensors

3 of 8 differ

Heart rate sensor

BioTracker PPG biometric sensor (5 photodiodes and 2 LEDs)1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026

Garmin Elevate wrist heart rate monitor1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026

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

Not available

No7Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-255Read 11 October 2026Spec table: electrical heart rate No, ECG No. The Garmin product page lists no ECG sensor or app.

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

Yes1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026

Yes1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs: Pulse Ox blood oxygen, spot-check and optional all-day acclimation and in sleep. Not available in all countries.

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

Yes1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026

No2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026The manual describes an internal temperature sensor whose reading is affected by body temperature and offers an external tempe sensor for ambient temperature. No skin temperature function is described.7Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-255Read 11 October 2026Spec table: skin temperature No. The Garmin page lists only a thermometer.

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

Not available

Not available

Body composition sensor

Not available

Not available

Skin conductance (EDA)

Not available

Not available

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

Not available

Not available

Motion and environment sensors

1 of 9 differ

Accelerometer

Yes1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026

Yes1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026

Accelerometer range

Not available

Not available

Gyroscope

Yes1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026

Yes1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026

Barometric altimeter

Yes1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026

Yes1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026

Compass

Yes1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026

Yes1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026

Ambient light sensor

Yes1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026

No7Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-255Read 11 October 2026Spec table: ambient light sensor No. The Garmin sensor list has none.

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

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

Heart rate alerts, Blood oxygen app, Heart rate variability, Sleep tracking, Sleep stages, Stress tracking, Readiness score, Cycle tracking1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026High/low heart-rate, low-SpO2 and stress alerts, sleep HRV/stages, BioCharge readiness and menstrual-cycle tracking are explicitly supported. Automatic all-day measurements have configurable intervals. A 5-minute default heart-rate interval in typical-use tests is not continuous per-second sensing, so continuous_heart_rate is not asserted.

Continuous heart rate, Heart rate alerts, Blood oxygen app, Heart rate variability, Sleep tracking, Sleep stages, Stress tracking, Cycle tracking1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs list heart rate every second, high and low abnormal heart rate alerts, Pulse Ox, HRV status, advanced sleep, all-day stress and women's health in Garmin Connect. Sleep stages are in the manual.2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Sleep statistics include total hours of sleep, sleep stages and sleep score (page 42 area).

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, Training load, Recovery advice, Running dynamics, Running power, Pool swim, Open water swim, Strength rep counting, Interval workouts, Route navigation, Turn-by-turn navigation, Trackback1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026Maker lists automatic recognition of 8 sports and 25 strength movements, interval templates, running power and ground contact time. Pool/open-water swimming are named activity profiles. The snorkeling profile is not stored as a dive capability because the product manual prohibits snorkeling use. VO2 max and recovery advice are independently supported by the exact Wareable review. 170+ sports is not an exact count.4Reviewwareable.com/reviews/amazfit-active-3-premium-review-a-budget-smartwatch-for-beginner-runnersRead 8 October 2026Exact review explicitly names VO2 max, training load, recovery time, pool swims, rep tracking and automatic 25 strength movements. GPS percentage drain is not converted into endurance.

VO2 max, Training load, Recovery advice, Running dynamics, Running power, Pool swim, Open water swim, Strength rep counting, Interval workouts, Route navigation, Trackback1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs list VO2 Max (run), training load, recovery time, running dynamics, running power, pool and open-water swim metrics, automatic rep counting, interval training, course guidance and TracBack. Running dynamics need a pod or HRM-Pro. No golf course or ClimbPro entry.2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Page 62: running power can be measured with a compatible running dynamics accessory or the watch sensors. Page 63: Running Dynamics Pod records running dynamics.

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

Not available

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

Heart rate strap, Power meter, Speed and cadence1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026Supports Bluetooth heart-rate belts, running/cycling power meters, speedometers and cadence sensors. No foot-pod or smart-trainer capability is inferred.

Heart rate strap, Power meter, Speed and cadence, Foot pod, Smart trainer1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs list heart rate from external HRM, power meter compatible, speed and cadence sensor support, foot pod capable and smart trainer control.

Safety

4 of 6 differ

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

Not available

No1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs list only incident detection during select activities, which is limited to certain outdoor activities. Not counted as general fall detection.2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Page 83: incident detection is a supplemental feature available only for certain outdoor activities.

Car crash detection

Not available

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.

Not available

Yes1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs list Assistance. The manual says it sends a message with name, LiveTrack link and GPS location to emergency contacts through a paired phone with data. It does not call emergency services.2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Safety and Tracking, page 84: Assistance sends a message with name, LiveTrack link and GPS location to emergency contacts. Paired phone with data plan required.

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

Yes1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs list live event sharing (Android only). The manual lists LiveTrack.2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Safety and Tracking: LiveTrack lets friends and family follow activities in real time.

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

Not available

No2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Controls menu: Flashlight turns on the screen to use the watch as a flashlight. A lit display is not a dedicated LED.7Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-255Read 11 October 2026Spec table: LED flashlight No, matching the manual.

Positioning

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

GPS1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026The maker publishes 5 satellite systems without naming all five. GPS is explicitly named in battery/workout descriptions. Other constellations are unknown, not assumed absent.

GPS, GLONASS, Galileo, QZSS, BeiDou1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs list GPS, GLONASS, Galileo, QZSS and BeiDou. Multi-band GPS is listed. Signal bands are not named.

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

No4Reviewwareable.com/reviews/amazfit-active-3-premium-review-a-budget-smartwatch-for-beginner-runnersRead 8 October 2026Exact review explicitly says single-band GPS and lacks dual-band GNSS.7Reviewtheruntesters.com/running-watches/amazfit-active-3-premium-reviewRead 8 October 2026Battery key spec explicitly calls its GPS single-band.

Yes1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs list Multi-band GPS. Battery table calls it All-Systems GNSS plus Multi-Band.

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

Yes1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026Downloadable OSM maps with route import, turn directions and rerouting. Maps must match the current location. Navigation is limited to compatible outdoor sport modes.

No1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026No map entry in the specs. Only breadcrumb trail, courses and TracBack are listed, which are not offline maps.

Connectivity

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

Not available

Yes1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026

Bluetooth version

5.31Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026

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

No2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Status icons: Wi-Fi technology status for Forerunner music watches only. The spec table lists no Wi-Fi for this model.

Wi-Fi standard

Not available

Not available

Wi-Fi bands

Not available

Not available

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

Not available

No1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs list Connectivity as Bluetooth and ANT+ only. No Wi-Fi and no cellular.

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.

Not available

Yes1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Garmin Pay contactless payments are listed. NFC itself is not named in the specs.

Contactless payments

Not available

Yes1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Garmin Pay is listed.

Payment services

Not available

Garmin Pay1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026

Ultra-wideband

Not available

No7Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-255Read 11 October 2026Spec table: UWB No. Garmin lists Bluetooth and ANT+ only.

Satellite

Not available

Not available

ANT+

Not available

Yes1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026

Audio

4 of 4 differ

Speaker

Yes1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026

No7Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-255Read 11 October 2026Spec table: speakers No. Garmin lists no voice calls, speaker or music playback for this non-music model.

Microphones

Not available

07Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-255Read 11 October 2026Spec table: microphone No. Garmin lists no voice calls or microphone for this model.

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

Phone only1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026Published Bluetooth calls use a paired compatible phone. No standalone cellular calling is claimed for the US reference.

None1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs list text response and reject phone call with text only. No voice call, speaker or microphone entry and no cellular. No 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.

Yes1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026GPS-with-music footnote explicitly describes watch music playback to Bluetooth headphones. Wareable also describes syncing local music. The FAQ restriction on Spotify/Pandora apps does not exclude local files.4Reviewwareable.com/reviews/amazfit-active-3-premium-review-a-budget-smartwatch-for-beginner-runnersRead 8 October 2026Describes syncing personal music to the watch storage. Not simply remote control of phone playback.

No2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Specifications page 101 lists music media storage for Forerunner music watches (Forerunner 255 Music). This model is the non-music watch.

Controls

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

41Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026

52Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Overview, page 2: LIGHT, UP, DOWN, BACK and START/STOP.

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

Up button, Down button, Select button, Power/Back button9Owner's manualcdn.multitronic.fi/media/2/b/mmo_140395205_1775822751_1988_183.pdfRead 8 October 2026About the Watch diagram names Up, Down, Select and Power/Back operating buttons. User Manual Basic operations maps them to upper/lower-left and upper/lower-right positions. Strap releases are not counted.

LIGHT, UP, DOWN, BACK, START/STOP2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Overview page 2. START and STOP share one button.

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

None3Owner's manualsupport.amazfit.com/en/amazfit_active_3_premium/files/user-manual.pdf.pdfRead 8 October 2026Basic operations and exact device figure show four push buttons, with no rotating crown.

None2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Overview shows five buttons and no crown.

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

Not available

None2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Overview shows five buttons and no rotating bezel.

Gestures

Cover the screen to turn it off3Owner's manualsupport.amazfit.com/en/amazfit_active_3_premium/files/user-manual.pdf.pdfRead 8 October 2026Basic operations, printed page 3, explicitly names covering the screen to turn it off.

Raise and turn your arm to turn on the backlight2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Backlight settings: Gesture turns on the backlight by raising and turning your arm to look at your wrist.

Battery and charging

8 of 13 differ

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

365mAh1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026365 mAh is the rated capacity, not a typical capacity inferred from another model.

Not available

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.

AAmazfit Active 3 Premium

Mode	With solar	Hours (h)
Smartwatch	No	288
Heavy use	No	168
Always-on	No	96
GPS	No	24
GPS with music	No	10
GPS, power saving	No	76

Source1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026Up to values. Typical 12 days uses static watch face, voice assistant off, AOD off, heart rate every 5 minutes, 8 hours/day assisted sleep and sleep-breathing monitoring, 15 minutes/week calls, 30 minutes/week music and 90 minutes/week GPS. Heavy 7 days uses dynamic face, voice assistant on, heart rate every minute, 30 minutes/week calls, 60 minutes/week music and 210 minutes/week GPS. AOD 4 days is the heavy workload with Smart AOD on. Continuous GPS 24 hours records route with HR enabled. GPS/music 10 hours plays watch music to Bluetooth headphones. Power-saving GPS 76 hours disables health/background services, phone Bluetooth and screen wake. It is the only GPS saving preset the maker lists, so it is stored as GPS power saving. No unspecified all-system or dual-band mode is invented.

BGarmin Forerunner 255

Mode	With solar	Hours (h)
Smartwatch	No	336
GPS	No	30
GPS, all systems	No	25
GPS, dual-band	No	16

Source1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Smartwatch mode up to 14 days (336 h). GPS-only GNSS up to 30 h. All-Systems GNSS up to 25 h. All-Systems plus Multi-Band up to 16 h. Manual footnote: smartwatch mode includes activity tracking, phone notifications and wrist heart rate.

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.

288h=CalculatedFrom Claimed battery life

336h=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.

96h=CalculatedFrom Claimed battery life

Not available

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.

24h=CalculatedFrom Claimed battery life

30h=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

No9Reviewdcrainmaker.com/2022/06/garmin-forerunner-multisport.htmlRead 11 October 2026Review covers the Forerunner 255, 255S, 255 Music and 255S Music with no solar model. Solar is introduced in this launch only on the Forerunner 955 Solar.

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 pins9Owner's manualcdn.multitronic.fi/media/2/b/mmo_140395205_1775822751_1988_183.pdfRead 8 October 2026Charging panel: magnetic head with metal contacts against watch charging contacts. Conductive pins, not Qi or an inductive-puck interoperability claim. Input DC 5 V, 500 mA MAX is an input rating, not an explicit wattage claim for maximum battery charging. No computed charging-wattage value is stored.

Proprietary plug1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs: Garmin proprietary plug charger.

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.

Not available

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.

Not available

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.

Not available

120min2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Tips for charging: charging a fully depleted battery takes up to two hours, from a Garmin approved AC adapter or a computer USB port. Stored as a nominal claim of 120 minutes with the up-to qualifier.

Measured

None of 4 known

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.

Not available

Not available

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.

Not available

Not available

Strap

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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.

20mm9Owner's manualcdn.multitronic.fi/media/2/b/mmo_140395205_1775822751_1988_183.pdfRead 8 October 2026Product Manual proves conventional spring-bar attachment. Maker Strap Attachment row publishes 20 mm for this interface. This is distinct from a decorative proprietary strap width.

22mm1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs: quick release bands, 22 mm, industry standard.

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

Yes9Owner's manualcdn.multitronic.fi/media/2/b/mmo_140395205_1775822751_1988_183.pdfRead 8 October 2026Printed panel 4 shows the supplied strap spring-bar release lever and its slide arrow. The diagram was visually checked. Screws on the watch lugs are not strap-release controls.

Yes1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026

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

20 mm strap attachment1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026Maker comparison table explicitly publishes Strap Attachment 20 mm. Supplied quick-release mechanism and a separate lug-distance measurement remain unproved.

Industry standard 22 mm quick release bands1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026

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

Silicone1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026

Silicone1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs: Strap material silicone.

Strap

Not available

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.

AAmazfit Active 3 Premium

Not available

BGarmin Forerunner 255

Wrist (min) (mm)	Wrist (max) (mm)
130	205

Source1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs: fits wrists with a circumference of 130-205 mm. This is the overall range for the watch with its supplied silicone strap.

Regulatory

1 of 3 differ

FCC ID

Not available

Not available

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

Not available

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

Not available

Other certifications

Not available

ANT+ certified2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Front matter: this product is ANT+ certified.

In the box

1 of 2 differ

In the box

Smartwatch with standard strap, Magnetic charging head without cable, Instruction manual1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026Complete Packing List. The USB-C cable is not included with the magnetic head.

Forerunner 255, Charge/data cable, Documentation1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026In the Box tab: Forerunner 255, charge/data cable, documentation.

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

No1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026Packing list has charging head, watch and manual, but no mains/USB power adapter.

No1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Box lists a charge/data cable and no power adapter.

Links

Not compared

Product page

us.amazfit.com/products/active-3-premium1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026

www.garmin.com/en-US/p/780139/pn/010-02641-011Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026US store page for SKU 010-02641-01.

Spec sheet

us.amazfit.com/products/active-3-premium1Maker product pageus.amazfit.com/products/active-3-premiumRead 8 October 2026

www.garmin.com/en-US/p/780139/pn/010-02641-011Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026The specs tab of the US product page holds the full specification list for the 46 mm watch.

Manual

support.amazfit.com/en/amazfit_active_3_premium/files/user-manual.pdf.pdf3Owner's manualsupport.amazfit.com/en/amazfit_active_3_premium/files/user-manual.pdf.pdfRead 8 October 2026

www8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdf2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026

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

0 of 1 differ

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.

1year10Maker product pageus.amazfit.com/pages/warranty-policyRead 8 October 2026US maker policy: 12-month manufacturing-defect warranty from original purchase, with statutory/local-law rights in addition. US product page explicitly advertises 1 Year Warranty. No foreign legal term is transferred.

1year5Maker product pagegarmin.com/en-US/legal/consumer-limited-warrantyRead 11 October 2026Garmin consumer limited warranty, US: non-aviation products are free from defects in materials or workmanship for one year from the date of purchase.

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