Smartwatches / Compare

Garmin Venu 3S vs Xiaomi Watch S4

A

Product A: Garmin

Venu 3S

95 of 150 known

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B

Product B: Xiaomi

Watch S4

83 of 150 known

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All 150 fields

Every value links to where we found it.

Only differences

AGarmin Venu 3S

BXiaomi Watch S4

General

7 of 10 differ

Series

Venu1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

Watch S3Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026Q4 compares the Watch S4 with its predecessor, the Xiaomi Watch S3, in the same Watch S line.

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

010-02785-01, 010-02785-02, 010-02785-00, 010-02785-03, 010-02785-041Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

M2425W1, BHR9195GL, BHR9197GL, BHR9199GL4Maker spec sheet (PDF)i02.appmifile.com/229_operatorx_operatorx_xm/29/08/2026/0506b1d933bea38854867532d7b1e253.pdfRead 15 October 2026EU Declaration of Conformity for radio equipment model M2425W1, Smart Watch, listed on Xiaomi's declaration page as Xiaomi Watch S4. The 41 mm Watch S4 is M2502W1 and is a separate product. The standards list covers Bluetooth, NFC and GNSS and has no cellular standard.6Maker product pagemi.com/global/service/support/declaration.htmlRead 15 October 2026Declaration page lists Xiaomi Watch S4 M2425W1 with EU DoC and PSTI documents, separate from Watch S4 41mm M2502W1.7Spec databasegsmarena.com/xiaomi_watch_s4-13476.phpRead 15 October 2026Spec page lists models M2424W1 and M2425W1. Only M2425W1 is documented for the global model, so M2424W1 is not stored.11Retailer pageeuronics.ee/en/phones/watches/smart-watches/bhr9195gl/xiaomi-watch-s4-black-smart-watchRead 15 October 2026Retailer product code BHR9195GL for the black Xiaomi Watch S4, 44.5 g, 486 mAh, Bluetooth 5.3, 4G No.13Retailer pagepood.datafox.ee/xiaomi-watch-s4-rainbow-smart-watchRead 15 October 2026Rainbow product code BHR9199GL.14Retailer pageachatmoinscher.com/comparateur-de-prix-Montre-connectee-sportive/montre-intelligente-xiaomi-s4-bhr9197gl-gris-argente-6941812707432.htmlRead 15 October 2026Silver product code BHR9197GL.

GTIN / EAN

0753759314781, 0753759314798, 0753759314774, 0753759314804, 07537593148118Maker spec sheet (PDF)cms-public.1ntersport.com/968279dd-dbfe-4eaa-b315-366e3c9b34a1/Datenblatt-Venu-3-Serie.pdfRead 5 October 2026Original Garmin six-page Venu 3/3S datasheet page 5 lists all five exact represented Venu 3S silicone SKUs and EANs. Separate Venu 3 and leather bundles excluded.

6941812732403, 6941812707432, 694181271166812Retailer pagepood.datafox.ee/xiaomi-s4-smartwatch-blackRead 15 October 2026Black BHR9195GL, EAN 6941812732403.13Retailer pagepood.datafox.ee/xiaomi-watch-s4-rainbow-smart-watchRead 15 October 2026Rainbow BHR9199GL, EAN 6941812711668.14Retailer pageachatmoinscher.com/comparateur-de-prix-Montre-connectee-sportive/montre-intelligente-xiaomi-s4-bhr9197gl-gris-argente-6941812707432.htmlRead 15 October 2026Silver BHR9197GL, EAN 6941812707432.

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

30 August 20236Press releasegarmin.com/en-US/newsroom/press-release/sports-fitness/reach-your-health-and-fitness-goals-with-new-venu-3-gps-smartwatches-from-garminRead 5 October 2026

29 October 20247Spec databasegsmarena.com/xiaomi_watch_s4-13476.phpRead 15 October 2026Spec page: announced and released 29 October 2024 in China. The global model followed in March 2025.

Status

Available1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026Exact current maker NZ SKU is marked sellable and offers Add To Cart. No discontinued status inferred from successor launch.

Available2Maker product pagemi.com/global/product/xiaomi-watch-s4Read 15 October 2026The global product page is live with specs and a buy link. GSMArena lists it as available.

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

Not available

Not available

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.

Garmin Venu 411Reviewdigitec.ch/en/page/garmin-venu-4-tested-a-smart-combination-of-sport-and-health-40273Read 7 October 2026Own comparison of the author’s prior Venu 3S and the 41 mm Venu 4 explicitly identifies the predecessor. Existing catalog successor has 41 and 45 mm variants.

Xiaomi Watch S5 46mm15Reviewgsmarena.com/xiaomi_unveils_smart_band_10_pro_buds_6_sound_play_speaker-news-73032.phpRead 23 October 2026GSMArena says the Xiaomi Watch S5 comes as the successor to the Watch S4.

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

$449.996Press releasegarmin.com/en-US/newsroom/press-release/sports-fitness/reach-your-health-and-fitness-goals-with-new-venu-3-gps-smartwatches-from-garminRead 5 October 2026Original US maker launch explicitly available now with suggested retail price. Original colour packages share price. US amount excludes local sales tax. No euro VAT scope inferred from a retailer-hosted UVP table.

Not available

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

€159.9910Press articlefonearena.com/blog/447624/xiaomi-buds-5-pro-watch-s4-electric-scooter-5-max-price-global.htmlRead 15 October 2026Price 159.99 euros for the Watch S4. The article lists no colours and gives no tax treatment. Retail listings put the Rainbow edition at 169.99 euros, which is not a launch price and is not stored.

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

NZ, US1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026NZ maker exact SKU pages establish NZ. Original US launch separately establishes US model availability. Variant rows explicitly retain NZ scope and do not inherit US from base.6Press releasegarmin.com/en-US/newsroom/press-release/sports-fitness/reach-your-health-and-fitness-goals-with-new-venu-3-gps-smartwatches-from-garminRead 5 October 2026

EU10Press articlefonearena.com/blog/447624/xiaomi-buds-5-pro-watch-s4-electric-scooter-5-max-price-global.htmlRead 15 October 2026Euro price from European announcement coverage. The global launch was at MWC 2025.

ColoursiThe maker's own colour names

Silver stainless steel bezel with sage grey case and silicone band, Soft Gold Stainless Steel Bezel with French Gray Case and Silicone Band, Slate stainless steel bezel with pebble gray case and silicone band, Soft Gold Stainless Steel Bezel with Dust Rose Case and Silicone Band, Soft Gold Stainless Steel Bezel with Ivory Case and Silicone Band1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

Black, Silver, Rainbow1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026Silver, Rainbow and Black.

Segment

Smartwatch1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

Smartwatch2Maker product pagemi.com/global/product/xiaomi-watch-s4Read 15 October 2026The page sits under Wearables as the Xiaomi Watch S4 smartwatch with a rotating crown and 150+ sports modes.

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

2 March 20275Maker spec sheet (PDF)i02.appmifile.com/791_operatorx_operatorx_xm/05/03/2026/e12c7be544083cc45f26f933fa49ae28.pdfRead 15 October 2026UK PSTI statement for M2425W1 dated 2025/2/6: the defined support period is until 3/2/2027. Xiaomi's other PSTI statements use month/day/year, such as 11/15/2026 and 2/27/2028, so this reads as 2 March 2027. This is a security-support period, not an OS-upgrade promise.

Case

7 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.

41mm2Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 5 October 2026Exact maker selected case option 41 mm for all five represented Venu 3S finishes. Separate 45 mm Venu 3 SKUs are excluded.

47.3mm1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026The maker states 47.3 mm x 47.3 mm x 12.0 mm. The separate 41 mm Watch S4 has its own page and is not included.

Case shape

Round1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

Round3Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026Q2: round AMOLED display and 47.3 mm diameter.

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.

Fibre-reinforced polymer1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026Primary housing is fibre-reinforced polymer. Bezel metal is recorded separately in material description, not substituted for housing.

Aluminium1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026Aluminum alloy frame. The bezel is stainless steel according to the support FAQ.3Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026Q2: middle frame entirely aluminium alloy, bezel stainless steel.

Case material (as published)

Fibre-reinforced polymer housing. Stainless steel bezel.1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

Aluminium alloy middle frame with PVD coating and stainless steel bezel3Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026Q2 and the S3 comparison: aluminium alloy with PVD coating, stainless steel bezel.

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

Fibre-reinforced polymer13Retailer pagebestbuy.com/site/garmin-venu-3s-gps-smartwatch-41-mm-fiber-reinforced-polymer-stainless-steel-and-french-gray-2023/10101797.pRead 7 October 2026Exact 010-02785-02 French Gray retailer row states the rear housing material. Typographical polymner is normalized to polymer. Sensor window and ECG contact material are excluded from this housing description.

Not available

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

Height41Width41Thickness12mm(1.6 × 1.6 × 0.5 in)1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

Height47.3Width47.3Thickness12mm(1.9 × 1.9 × 0.5 in)1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 202647.3 x 47.3 x 12.0 mm. The maker excludes the strap and protrusions. The FAQ gives 14.13 mm thickness with the heart rate bump.3Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026Q2: diameter 47.3 mm, thickness 12 mm excluding the deco and heart rate sensor.

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

27g(1 oz)12Maker product pagegarmin.com/en-US/compareRead 7 October 2026Maker comparison product ID 873214 explicitly separates 27 g from 40 g with the included band. The current NZ product page only publishes the latter. Digital Citizen independently says 27 g without the band. All five existing finish rows have the same 41 mm housing.

44.5g(1.6 oz)1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 202644.5 g approx., without the in-box strap.3Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026Q2: 44.5 +/- 1 g, excluding the strap.

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

40g(1.4 oz)1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026Exact maker 40 g with included silicone band. Leather package 34 g is excluded. Bare-body mass is not published and is omitted.

Not available

Durability

1 of 8 differ

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

5ATM4Owner's manualwww8.garmin.com/manuals/webhelp/GUID-9CC4A873-E034-4A06-B2E0-636DCFE760EE/EN-US/Venu_3_OM_EN-US.pdfRead 7 October 2026Swim 5 ATM, pressure equivalent to 50 m. It is not a supported scuba depth or dive-mode claim.

5ATM1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 20265 ATM, described as 50 m static pressure. The maker says it is not suitable for hot showers, saunas or diving.3Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026Q9: 5 ATM, equivalent to 50 m, for pool and shallow-water use and not for diving.

Water resistance standard

Not available

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.

Min-20Max50°C4Owner's manualwww8.garmin.com/manuals/webhelp/GUID-9CC4A873-E034-4A06-B2E0-636DCFE760EE/EN-US/Venu_3_OM_EN-US.pdfRead 7 October 2026Published operating range. Separate 0 to 45 C charging range is not stored as operation.

Min-10Max45°C9Retailer pageteamplush.by/enRead 15 October 2026Same reseller copy of the manual: working temperature -10 to 45 C.

Display

7 of 14 differ

Display type

OLED1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026Published AMOLED. No LTPO panel, refresh limits or peak brightness inferred.

OLED1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026Spec row: 1.43-inch AMOLED display. No LTPO is stated.

Display type (as published)

AMOLED1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

AMOLED1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026Spec row: AMOLED display.

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

1.2in(3 cm)1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

1.43in(3.6 cm)1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 20261.43-inch AMOLED display, 466 x 466 pixels.

Resolution

390 × 390px1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

466 × 466px1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026

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

Not available

326ppi1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026Published PPI 326.

Display area

Not available

Not available

Touchscreen

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

Yes1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026

Max refresh rateiHighest published display refresh rate in active operation.

Not available

60Hz1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 202660 Hz refresh rate. The maker notes it may vary across interfaces.

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

2,200nits1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026Peak 2200 nits is when only part of the screen lights up. HBM 1500 nits is the full-screen maximum. No reviewer measurement is substituted.

Minimum brightness

Not available

Not available

Always-on display

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

Yes2Maker product pagemi.com/global/product/xiaomi-watch-s4Read 15 October 2026Support FAQ has the AOD controls. The overview page announces colour always-on displays.3Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026Q26: Always-on display supported, with Smart or Scheduled modes.

Display cover

Gorilla Glass1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

Other glass3Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026Q2: Panda Glass cover. It is not a named Gorilla Glass or sapphire.

Display cover (as published)

Corning Gorilla Glass 31Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

Panda Glass3Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026Q2: Panda Glass.

Platform

10 of 15 differ

Platform

Proprietary15Reviewphonearena.com/reviews/garmin-venu-3-review_id6021Read 7 October 2026PhoneArena explicitly states that its sample is the smaller 41 mm Venu 3S despite the shortened review title. Its own software description identifies Garmin’s proprietary OS.

Proprietary1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026Operating system: Xiaomi HyperOS 2, Xiaomi's own software. No Wear OS or other third-party watch platform is named.

OS at launch

Not available

Xiaomi HyperOS 21Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026

Software

Not available

Not available

Latest OS

Garmin firmware 17.0516Maker product pageforums.garmin.com/sports-fitness/healthandwellness/f/venu-3-series/429866/venu-3-series-software-version---17-05Read 7 October 2026Official Garmin staff states that version 17.05 for Venu 3/3S has reached 100% stable release. Later release searches found no qualifying newer stable version. Current access date defines the researched version.

Not available

Works with

iOS, Android1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

Android, iOS1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026Supports Android 8.0 and above, or iOS 14.0 and above.

Phone requirement

Compatible Bluetooth Android phone, or iPhone with iOS 18.2 or later for the current Garmin Connect app.17Maker product pageapps.apple.com/us/app/garmin-connect/id583446403Read 7 October 2026Garmin’s current App Store listing version 5.30 requires iOS 18.2. This is a current app requirement, distinct from launch compatibility. The watch manual confirms Android and iOS Bluetooth phones. A current numeric Android minimum could not be recovered from the support article.25Owner's manualwww8.garmin.com/manuals/webhelp/GUID-9CC4A873-E034-4A06-B2E0-636DCFE760EE/EN-US/Venu_3_OM_EN-US.pdfRead 7 October 2026Exact Venu 3 series Bluetooth phone compatibility Android/iOS. Current iOS minimum comes from the Garmin Connect developer App Store listing.

Android 8.0 or later, or iOS 14.0 or later, with the Mi Fitness app1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026The Mi Fitness app is required for pairing according to the support FAQ.

App store

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

Not available

Voice assistants

Paired smartphone voice assistant5Owner's manualwww8.garmin.com/manuals/webhelp/GUID-9CC4A873-E034-4A06-B2E0-636DCFE760EE/EN-US/Venu_3_OM_EN-US.pdfRead 5 October 2026Overview hold Custom/Voice Assistant button activates assistant on paired phone. It is not an independent onboard assistant or generic Siri/Alexa compatibility promise.

Not available

Chipset

NXP i.MX RT5559Maker spec sheet (PDF)nxp.com/docs/en/data-sheet/IMXRT500EC.pdfRead 7 October 2026NXP exact orderable-part/marking table page 7 maps fitted photo mark to RT555. Family GPU/clock options not inherited into watch fields.23Regulatory filingfccid.io/IPH-04542/Internal-Photos/Internal-Photos-6709359.pdfRead 7 October 2026Garmin FCC internal photos page 2 show the fitted NXP marking MRT555SFF. NXP IMXRT500EC Rev. 4 table 1 maps MRT555SFFOC to MIMXRT555SFFOC, the RT555 in FOWLP249. The RT595 is a distinct part. PhoneArena’s MediaTek MT6739 database claim conflicts with the actual board and its own review’s Unknown row. Device RAM and clock are not inferred.

Not available

Process

Not available

Not available

CPU cores

19Maker spec sheet (PDF)nxp.com/docs/en/data-sheet/IMXRT500EC.pdfRead 7 October 2026Fitted RT555 identified in actual Garmin FCC board photo. NXP block diagram has one Cortex-M33 CPU. Exact RT555 row disables the optional DSP, unlike RT595. One general CPU core. Component maximum clock is not transferred to watch runtime.

Not available

CPU configuration

AGarmin Venu 3S

Count	Core
1	Arm Cortex-M33

Source9Maker spec sheet (PDF)nxp.com/docs/en/data-sheet/IMXRT500EC.pdfRead 7 October 2026Exact RT555 orderable-part row and block diagram establish the single Cortex-M33 configuration. No DSP core is included. Maximum frequency is omitted because the original part retailer lists 200 MHz while current family datasheet says up to 275 MHz, and exact watch clock is unpublished.

BXiaomi Watch S4

Not available

Max CPU clock

Not available

Not available

GPU

NXP 2.5D vector graphics processor9Maker spec sheet (PDF)nxp.com/docs/en/data-sheet/IMXRT500EC.pdfRead 7 October 2026Exact RT555 table row enables Graphics. Datasheet Graphics/Multimedia identifies the 2.5D vector graphics unit. Fitted part is matched through actual board marking. No GPU clock, software acceleration guarantee or RT595 DSP inherited.

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.

8GB1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

Not available

Health sensors

5 of 8 differ

Heart rate sensor

Garmin Elevate wrist heart rate monitor (5th generation)1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 20268Maker spec sheet (PDF)cms-public.1ntersport.com/968279dd-dbfe-4eaa-b315-366e3c9b34a1/Datenblatt-Venu-3-Serie.pdfRead 5 October 2026Original maker datasheet names the fifth-generation HR sensor for Venu 3 series including Venu 3S. Current exact 3S SKU table independently lists Garmin ECG App support, with country, age, software and paired-phone requirements.

Heart rate sensor (with blood oxygen sensor)1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026Sensors row: heart rate sensor (with blood oxygen sensor). No sensor generation is named.

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

Yes2Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 5 October 2026Current exact Venu 3S maker specification marks Garmin ECG App yes. Country eligibility, age, compatible phone and updated software required. Hardware capability and current app support do not assert ECG was enabled at 2023 launch.

Not available

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

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

Yes1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026

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

Yes2Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 5 October 2026Current exact maker Skin temperature yes. Current software function, not a core-body thermometer or launch claim.

Not available

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)

No15Reviewphonearena.com/reviews/garmin-venu-3-review_id6021Read 7 October 2026The own review of the actual 41 mm Venu 3S explicitly excludes EDA sensing. ECG electrodes do not establish EDA.

Not available

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

United States: FDA-cleared Garmin ECG App18Press releasegarmin.com/en-US/newsroom/press-release/wearables-health/garmin-expands-ecg-app-to-additional-smartwatches-including-its-flagship-epix-pro-and-fenix-7-pro-seriesRead 7 October 2026Original October 17, 2023 maker release extends its FDA-cleared ECG App to the Venu 3 series. Exact Venu 3S maker specifications and the supported-model list corroborate. US use requires age 22 or older and eligible phone, country and software. Clearance is for the app. FDA K221774 corroborates the app identity.

Not available

Motion and environment sensors

0 of 9 differ

Accelerometer

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

Yes1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026

Accelerometer range

Not available

Not available

Gyroscope

Yes2Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 5 October 2026

Yes1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026

Barometric altimeter

Yes2Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 5 October 2026

Yes1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026

Compass

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

Yes1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026Sensors row lists an electronic compass.

Ambient light sensor

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

Yes1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 20263Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026Brightness Auto adjusts to ambient light.

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

3 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, Blood oxygen app, Heart rate variability, Sleep tracking, Sleep stages, Stress tracking, Cycle tracking, ECG app3Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 5 October 2026Exact current health rows and original launch corroborate continuous HR, high/low alerts, Pulse Ox, HRV, advanced sleep, stress and women health. Sleep stages explicitly in original manual. Pulse Ox and ECG, where present, are country-restricted. No training readiness or skin-temperature ovulation algorithm inferred.4Owner's manualwww8.garmin.com/manuals/webhelp/GUID-9CC4A873-E034-4A06-B2E0-636DCFE760EE/EN-US/Venu_3_OM_EN-US.pdfRead 7 October 2026

Continuous heart rate, Blood oxygen app, Sleep tracking, Sleep stages, Stress tracking, Cycle tracking2Maker product pagemi.com/global/product/xiaomi-watch-s4Read 15 October 2026Overview: heart rate, stress, blood oxygen and sleep monitoring, all-day options that need to be switched on. These are not medical features.3Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026Health pages: all-day heart rate, blood oxygen and stress, sleep stages (deep, light, REM, awake) and the Cycles app.

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, Recovery advice, Pool swim, Open water swim, Strength rep counting, Interval workouts, Golf courses, Running dynamics, Running power3Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 5 October 2026Exact current capability rows and manual activity chapters. Move IQ can auto-start timed walking/running after configured thresholds. Swimming is corroborated by recording chapters. Current manual page 51 explicitly supports wrist running power and running dynamics. These are current software features, not original launch promises. Straight-line Back to Start does not establish TracBack or course-following.4Owner's manualwww8.garmin.com/manuals/webhelp/GUID-9CC4A873-E034-4A06-B2E0-636DCFE760EE/EN-US/Venu_3_OM_EN-US.pdfRead 7 October 2026

Automatic workout detection, VO2 max, Training load, Running dynamics, Pool swim, Open water swim2Maker product pagemi.com/global/product/xiaomi-watch-s4Read 15 October 2026Overview: running form recognition (vertical ratio, vertical amplitude, ground contact time) and 150+ sports modes.3Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026Workout Q1: auto detect for walking, running, cycling, rower, elliptical and jump rope. Q2 workout data: vertical stride ratio, vertical amplitude and ground contact time in running. 17 modes give pro data including pool and open water swimming. The Training State app manages training load.11Retailer pageeuronics.ee/en/phones/watches/smart-watches/bhr9195gl/xiaomi-watch-s4-black-smart-watchRead 15 October 2026Retailer spec tab lists maximal oxygen uptake (VO2 max) measurements as Yes.

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 cadence, Foot pod, Smart trainer4Owner's manualwww8.garmin.com/manuals/webhelp/GUID-9CC4A873-E034-4A06-B2E0-636DCFE760EE/EN-US/Venu_3_OM_EN-US.pdfRead 7 October 2026Exact Wireless Sensors table, printed page 50, supports external heart-rate straps, power meters, speed/cadence sensors, foot pods and smart trainers. Additional published golf-club, eBike, light, radar and tempe accessories are not mapped because the schema has no corresponding enum slots. They are not built-in sensors or box items.

Not available

Safety

4 of 6 differ

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

No4Owner's manualwww8.garmin.com/manuals/webhelp/GUID-9CC4A873-E034-4A06-B2E0-636DCFE760EE/EN-US/Venu_3_OM_EN-US.pdfRead 7 October 2026Current manual limits Incident Detection to certain recorded outdoor activities. It requires a paired phone and data, and is unavailable in wheelchair mode. The schema excludes activity-only incident detection from general fall detection. CHIP’s broader Sturzerkennung label describes that restricted feature.

Not available

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.

Yes4Owner's manualwww8.garmin.com/manuals/webhelp/GUID-9CC4A873-E034-4A06-B2E0-636DCFE760EE/EN-US/Venu_3_OM_EN-US.pdfRead 7 October 2026Assistance sends message/LiveTrack/GPS to configured emergency contacts through paired phone and Garmin Connect. Phone data plan and coverage required. App does not contact emergency services on behalf of user.

Not available

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.

Yes4Owner's manualwww8.garmin.com/manuals/webhelp/GUID-9CC4A873-E034-4A06-B2E0-636DCFE760EE/EN-US/Venu_3_OM_EN-US.pdfRead 7 October 2026Current LiveTrack chapter, configured sharing and connected phone required. Generic activity incident detection is not stored as all-day fall detection or vehicle crash detection. It is disabled in wheelchair mode.

Not available

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

No19Reviewdcrainmaker.com/2023/08/garmin-venu-3-in-depth-review-more-sleep-analytics-power-meters-and-more.htmlRead 7 October 2026DC Rainmaker explicitly tested both sizes and distinguishes the screen flashlight from a dedicated LED. Current family manual independently says to turn on the AMOLED display as a flashlight.25Owner's manualwww8.garmin.com/manuals/webhelp/GUID-9CC4A873-E034-4A06-B2E0-636DCFE760EE/EN-US/Venu_3_OM_EN-US.pdfRead 7 October 2026Controls menu explicitly describes an AMOLED display flashlight.

Not available

Positioning

2 of 3 differ

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

GPS, GLONASS, Galileo1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026Exact published satellite-system sensor list. All-Systems runtime does not establish dual-frequency hardware.

GPS (L1 + L5), Galileo (E1 + E5a), GLONASS (G1), BeiDou (B1I + B1C + B2a), QZSS (L1 + L5)1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026Satellite systems: GPS, Galileo, Glonass, BeiDou and QZSS. The overview page says L1+L5 dual-frequency GNSS. The per-constellation bands come from the reseller copy of the manual regulatory table.7Spec databasegsmarena.com/xiaomi_watch_s4-13476.phpRead 15 October 2026Positioning: GPS (L1+L5), GLONASS, GALILEO, BDS, QZSS.9Retailer pageteamplush.by/enRead 15 October 2026Reseller page reproducing the M2425W1 manual regulatory table: GPS L1 / Galileo E1 / GLONASS G1 / BDS B1I, B1C / QZSS L1 at 1559-1610 MHz, and GPS L5 / Galileo E5a / BDS B2A / QZSS L5 at 1164-1215 MHz. This agrees with the maker's L1+L5 claim and GSMArena. Xiaomi's own manual PDF was not found, so the reseller copy is the source.

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

No19Reviewdcrainmaker.com/2023/08/garmin-venu-3-in-depth-review-more-sleep-analytics-power-meters-and-more.htmlRead 7 October 2026Own launch review explicitly covers both sizes and distinguishes multi-GNSS from multi-band reception. PhoneArena’s actual 41 mm review independently says there is no dual-band GPS support. This does not assert that a dormant chip feature is physically impossible.

Yes2Maker product pagemi.com/global/product/xiaomi-watch-s4Read 15 October 2026Overview: L1+L5 dual-frequency GNSS of five satellite positioning systems from an independent chip.

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

Not available

Not available

Connectivity

7 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

Yes1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026

Bluetooth version

Not available

5.31Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026Wireless connectivity: Bluetooth 5.3.7Spec databasegsmarena.com/xiaomi_watch_s4-13476.phpRead 15 October 2026Bluetooth 5.3, A2DP, LE.9Retailer pageteamplush.by/enRead 15 October 2026The copied table lists Bluetooth 5.3 at 2400-2483.5 MHz.

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

Yes26Regulatory filingfccid.io/IPH-04542/RF-Exposure-Info/SAR-Report-6709373.pdfRead 7 October 2026The same radio-mode table lists Wi-Fi 2.4 GHz 802.11b/g/n, so a Wi-Fi radio is fitted.

No7Spec databasegsmarena.com/xiaomi_watch_s4-13476.phpRead 15 October 2026WLAN: No.9Retailer pageteamplush.by/enRead 15 October 2026The copied radio table lists only GNSS, Bluetooth and NFC, with no Wi-Fi radio.

Wi-Fi standard

Wi-Fi 420Retailer pagebestbuy.com/product/garmin-venu-3s-gps-smartwatch-41-mm-fiber-reinforced-polymer-stainless-steel-and-dust-rose-2023/6551504Read 7 October 2026Exact Venu 3S 010-02785-03 hardware row states N, normalized to Wi-Fi 4. FCC A04542 report independently tests 802.11 b/g/n. Model hardware function across the five represented finish packages. No rated throughput inferred.26Regulatory filingfccid.io/IPH-04542/RF-Exposure-Info/SAR-Report-6709373.pdfRead 7 October 2026Exact A04542 Venu 3S maker-filed SAR report, RF Output Power operating-mode table, explicitly lists WiFi 2.4 GHz 802.11b, 802.11g and 802.11n. Intrinsic radio capability corroborates exact Best Buy Venu 3S N row. No throughput or regional channel entitlement inferred.

Not available

Wi-Fi bands

2.4 GHz4Owner's manualwww8.garmin.com/manuals/webhelp/GUID-9CC4A873-E034-4A06-B2E0-636DCFE760EE/EN-US/Venu_3_OM_EN-US.pdfRead 7 October 2026Exact family specifications list 2.4 GHz radio alongside separate 13.56 MHz NFC. Current Venu 3S maker page explicitly has Wi-Fi. A04542 SAR report explicitly identifies Wi-Fi 2.4 GHz b/g/n modes, distinguishing those from BT and ANT. No 5/6 GHz band or universal regional channel permission inferred.26Regulatory filingfccid.io/IPH-04542/RF-Exposure-Info/SAR-Report-6709373.pdfRead 7 October 2026Same exact radio-mode table expressly identifies WiFi 2.4 GHz, separately from Bluetooth. Native family manual lists 2.4 GHz radio and 13.56 MHz NFC. Regulatory numeric SAR and identifiers are not transferred across unresolved regional SKU scope.

Not available

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

No15Reviewphonearena.com/reviews/garmin-venu-3-review_id6021Read 7 October 2026PhoneArena actually reviewed the 41 mm Venu 3S and explicitly excludes cellular. CHIP lists no SIM, eSIM or cellular. Maker calling requires a paired phone. All five represented finishes use the same noncellular hardware.

No7Spec databasegsmarena.com/xiaomi_watch_s4-13476.phpRead 15 October 2026Versions: eSIM and NFC (China), Bluetooth and NFC (China), Bluetooth only (International). The global page and the EU declaration list no cellular radio, so the global model has 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.

Yes7Press releasegarmin.com/vi-VN/newsroom/press-release/news-2023-nov-garminpay-releaseRead 5 October 2026Original maker Vietnamese Garmin Pay release explicitly lists the Venu 3 series, which includes Venu 3S, among NFC-integrated watches. Current exact Venu 3S SKU table independently marks Garmin Pay supported. No regional transit-card feature or universal bank compatibility inferred.

Yes1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026NFC: Supported. The maker says availability may vary by region.9Retailer pageteamplush.by/enRead 15 October 2026The copied regulatory table lists an NFC operating frequency of 13.56 MHz.

Contactless payments

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

Yes2Maker product pagemi.com/global/product/xiaomi-watch-s4Read 15 October 2026NFC payment supports Mastercard and Visa terminals. Availability varies by region and issuing bank.

Payment services

Garmin Pay1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

Xiaomi Pay3Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026NFC related: bank cards are added through Mi Fitness, Device, Apps, Xiaomi Pay.

Ultra-wideband

Not available

Not available

Satellite

Not available

Not available

ANT+

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

Not available

Audio

1 of 4 differ

Speaker

Yes2Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 5 October 2026

Yes1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026

Microphones

Not available

21Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026Spec row: 2 mics.

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

Phone only2Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 5 October 2026Maker explicitly paired compatible smartphone required for call audio. No independent cellular calling inferred.

Phone only1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026Bluetooth calling: Supported while the watch stays connected to the phone's Bluetooth. Voice calls from third-party apps are not supported.

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

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

Yes3Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026Q28: local music playback on the watch. An Android phone downloads the music. An iPhone cannot download songs, but songs already on the watch play.

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.

34Owner's manualwww8.garmin.com/manuals/webhelp/GUID-9CC4A873-E034-4A06-B2E0-636DCFE760EE/EN-US/Venu_3_OM_EN-US.pdfRead 7 October 2026

13Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026Q2: the 2 o'clock position has the function button and rotating crown. The 4 o'clock position has the power button. The crown is counted only in Crown.

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

Action button, Back button, Custom/Voice Assistant button4Owner's manualwww8.garmin.com/manuals/webhelp/GUID-9CC4A873-E034-4A06-B2E0-636DCFE760EE/EN-US/Venu_3_OM_EN-US.pdfRead 7 October 2026Exact named operating controls from Overview, printed page 6. Action, Back and Custom/Voice Assistant buttons. No names from newer watch manuals borrowed.

Power button (4 o'clock)3Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026Q2: power button at 4 o'clock.

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

None21Reviewchip.de/test/Garmin-Venu-3S-im-Test_185043588.htmlRead 7 October 2026Exact Venu 3S own review explicitly says it has no rotating crown. Its three push buttons remain separate controls.

Rotating2Maker product pagemi.com/global/product/xiaomi-watch-s4Read 15 October 2026The overview describes a classic rotating crown.3Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026Q2: stainless steel rotating crown that also works as a function button.

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

None22Reviewandroidcentral.com/wearables/garmin-venu-3-reviewRead 7 October 2026Review describes the absence of a bezel used for interface navigation, while separately describing the decorative metal bezel. It explicitly says the Venu 3S shares these features. The source tested the larger watch, so only this stated shared control feature is adopted.

None3Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026Q11: the bezel is a removable decorative part that twists on for installation. The maker describes no bezel input.

Gestures

Touchscreen swipes and taps, Raise and turn wrist to wake display4Owner's manualwww8.garmin.com/manuals/webhelp/GUID-9CC4A873-E034-4A06-B2E0-636DCFE760EE/EN-US/Venu_3_OM_EN-US.pdfRead 7 October 2026Manual introduction and Touchscreen Tips describe swipes and taps. Display settings explicitly name raising and turning the wrist to wake the screen. No gestures from newer watches are added.

Raise to wake, Double-tap to wake, Wrist flip, Wrist shake, Finger snap, Fist clench2Maker product pagemi.com/global/product/xiaomi-watch-s4Read 15 October 2026Quick gestures and a classic rotating crown are listed. The support FAQ names the gestures.3Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026Q24 lists wrist flip, wrist shake, finger snap and fist. Fist works only with HyperOS 2 phones. Raise to wake and double-tap to wake are in the display settings.

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.

220mAh23Regulatory filingfccid.io/IPH-04542/Internal-Photos/Internal-Photos-6709359.pdfRead 7 October 2026Original Garmin 361-00162-00 battery label in manufacturer FCC internal photos, page 1, states rated 220 mAh and 0.85 Wh. The label was visually read at 300 dpi. CHIP and MediaMarkt independently corroborate 220 mAh for the 3S. The larger watch and aftermarket cells are excluded.

486mAh1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026Capacity 486 mAh. Rated or typical is not stated.

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.

AGarmin Venu 3S

Mode	With solar	Hours (h)
Smartwatch	No	240
Always-on	No	120
Low power	No	480
GPS	No	21
GPS, all systems	No	15
GPS, all systems with music	No	8

Source4Owner's manualwww8.garmin.com/manuals/webhelp/GUID-9CC4A873-E034-4A06-B2E0-636DCFE760EE/EN-US/Venu_3_OM_EN-US.pdfRead 7 October 2026Exact manual Specifications/Battery Life Information for Venu 3S column, printed page 73. The 10-day smartwatch mode includes activity tracking and continuous wrist heart rate. All durations are maker up-to maxima. Always On is a separate 5-day claim. Battery saver, GPS-only, all-systems GNSS and all-systems with music have separate rows. Actual duration depends on notifications, GPS, connected sensors and other enabled features. No sibling-model runtime transferred.

BXiaomi Watch S4

Mode	With solar	Hours (h)
Smartwatch	No	360
Always-on	No	120

Source2Maker product pagemi.com/global/product/xiaomi-watch-s4Read 15 October 2026Up to 15 days typical usage, tested by Xiaomi Internal Labs with factory defaults, AOD off, 100 messages a day, 200 wrist raises a day, 90 minutes of GNSS sports a week and 10-minute heart rate checks. The FAQ gives 14.5 days with an iPhone and 5 days with the Smart AOD option on. Days are converted exactly to hours.3Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026Charging and Battery Q1: typical 15 days (14.5 with an iPhone) and AOD 5 days, with the stated test conditions.

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.

240h=CalculatedFrom Claimed battery life

360h=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.

120h=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.

21h=CalculatedFrom Claimed battery life

Not available

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.

Proprietary plug1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

Magnetic pins1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026Charging port: 2-pin magnetic charging dock.

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

Not available

2-pin magnetic charging dock with a USB-A cable. The FAQ asks for a USB-A charger with 5 V output and at least 0.5 A.1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026The support FAQ gives the supply requirement.3Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026Charging Q2: USB-A charger with 5 V and at least 0.5 A output.

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

Yes2Maker product pagemi.com/global/product/xiaomi-watch-s4Read 15 October 2026Overview headline: 5 minutes of fast charging delivers 2 days of usage.

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

Charge time5 minUse time48 h2Maker product pagemi.com/global/product/xiaomi-watch-s4Read 15 October 20265 minutes of charging for 2 days of usage. The FAQ says this follows the typical battery model, which is the typical-use workload.3Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026Charging Q1: 5 minutes of charging provides a 2-day boost under the typical battery model.

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

60min3Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026Charging Q1 and Q2: about 60 minutes to fully charge.

Measured

1 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.

AGarmin Venu 3S

Test	Hours (h)
Other	83.3

Source10Measurementchip.de/artikel/So-testet-CHIP-Smartwatches_182876255.htmlRead 7 October 2026Linked CHIP method uses maximum brightness and a notification each minute, with time-lapse observation until battery shutdown.24Measurementchip.de/test/Garmin-Venu-3S-im-Test_185043588.htmlRead 7 October 2026CHIP’s actual 41 mm Venu 3S table gives 83:18 hours, tested November 7, 2023 with firmware 7.07. Linked method sets maximum display brightness, sends one phone notification per minute and records a time-lapse until battery shutdown. Review says no GPS. AOD and phone/radio settings are not explicit. Other represents this lab workload. The 86-hour larger watch is excluded.

BXiaomi Watch S4

Test	Hours (h)
Mixed use, always-on	48

Source8Reviewgsmarena.com/xiaomi_watch_s4_review-news-67715.phpRead 15 October 2026Reviewer used AOD, notifications, a one-hour daily workout and sleep tracking. The most was three days when the watch nearly died, and two days was a consistent result. Stored as about 48 hours. Firmware and display brightness are not stated.

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

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.

18mm1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

22mm3Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026Q7: strap width 22 mm.

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

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

Yes3Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026Q6: the watch supports quick-release straps released through the spring bar.

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

Standard 18 mm quick-release spring bars4Owner's manualwww8.garmin.com/manuals/webhelp/GUID-9CC4A873-E034-4A06-B2E0-636DCFE760EE/EN-US/Venu_3_OM_EN-US.pdfRead 7 October 2026Manual Changing the Bands, page 71, explicitly gives Venu 3S standard 18 mm quick-release bands and spring-bar instructions. The larger Venu 3 has 22 mm bands. This is distinct from QuickFit.

22 mm quick-release straps with spring bars3Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026Q6 and Q7: quick-release spring-bar straps, any 22 mm strap.

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

Silicone1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

Fluoroelastomer3Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026Spec page names fluororubber straps for Black and Silver. Fluororubber is stored as fluoroelastomer.

Strap

Silicone band1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026All five exact current NZ finish descriptions explicitly include a silicone band. This generic published name applies to those five rows. Optional leather packages and separately sold replacements are excluded.

Fluororubber strap3Maker product pagemi.com/global/support/faq/details/KA-517264Read 15 October 2026Spec page strap rows for Black and Silver.

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

AGarmin Venu 3S

Wrist (min) (mm)	Wrist (max) (mm)
110	175

Source1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026Included Venu 3S silicone band wrist range 110 to 175 mm. Optional replacement straps and larger-watch bands are not inherited.

BXiaomi Watch S4

Size	Wrist (min) (mm)	Wrist (max) (mm)
Black fluororubber strap	140	210

Source1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026The Black and Silver fluororubber straps have an adjustable length of 140-210 mm approx. The maker publishes strap length, stored as the wrist range. The Rainbow set with fluororubber and nylon straps is 135-210 mm.

Regulatory

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FCC ID

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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.

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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.

0.45W/kg4Owner's manualwww8.garmin.com/manuals/webhelp/GUID-9CC4A873-E034-4A06-B2E0-636DCFE760EE/EN-US/Venu_3_OM_EN-US.pdfRead 7 October 2026Exact Venu 3S EU limb SAR 0.45 W/kg from manual Specifications. Venu 3S torso 1.94 W/kg and larger Venu 3 limb 0.36 W/kg are not substituted.

0.232W/kg9Retailer pageteamplush.by/enRead 15 October 2026Same reseller copy: maximum SAR on the wrist 0.232 W/kg with no gap, against a 4.0 W/kg wrist limit averaged over 10 g, under the EU declaration. The near-mouth value of 0.132 W/kg is a body value and is not stored.

Other certifications

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EU RED 2014/53/EU conformity, RoHS 2011/65/EU conformity4Maker spec sheet (PDF)i02.appmifile.com/229_operatorx_operatorx_xm/29/08/2026/0506b1d933bea38854867532d7b1e253.pdfRead 15 October 2026The declaration covers RE Directive 2014/53/EU and RoHS Directive 2011/65/EU.

In the box

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In the box

Venu 3S, USB-C charging/data cable, Documentation1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026Exact per-SKU In the Box tab lists watch, USB-C charging/data cable and documentation. Complete list has no mains adapter. Proprietary four-pin watch connector is not USB-C on watch.

Xiaomi Watch S4 (including bezel and strap), Magnetic charging dock, User manual (including warranty notice)1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026Package contents row.

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

No1Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

No1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026Package contents list only the watch, magnetic charging dock and manual. No power adapter.

Links

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Product page

www.garmin.com/en-NZ/p/pn/010-02785-001Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026

www.mi.com/global/product/xiaomi-watch-s42Maker product pagemi.com/global/product/xiaomi-watch-s4Read 15 October 2026

Spec sheet

www.garmin.com/en-NZ/p/pn/010-02785-001Maker product pagegarmin.com/en-NZ/p/pn/010-02785-00Read 7 October 2026Exact independent maker NZ GarminAppBootstrap Specs tabs read for all five represented 41 mm Venu 3S silicone SKUs. Original Garmin Venu 3/3S six-page datasheet and family manual separately corroborate the 3S column. 45 mm Venu 3 is excluded.

www.mi.com/global/product/xiaomi-watch-s4/specs1Maker product pagemi.com/global/product/xiaomi-watch-s4/specsRead 15 October 2026Global specs page. Base case and strap describe the Black version.

Manual

www8.garmin.com/manuals/webhelp/GUID-9CC4A873-E034-4A06-B2E0-636DCFE760EE/EN-US/Venu_3_OM_EN-US.pdf4Owner's manualwww8.garmin.com/manuals/webhelp/GUID-9CC4A873-E034-4A06-B2E0-636DCFE760EE/EN-US/Venu_3_OM_EN-US.pdfRead 7 October 2026Exact current original maker Venu 3 series Owner Manual, 82 pages. Hardware, controls, health, activity, charging, safety and sensor chapters apply to Venu 3S. Size-specific runtime and SAR columns explicitly separated. No 45 mm Venu 3 values inherited.

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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.

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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.

1year14Owner's manualfccid.io/IPH-04542/User-Manual/User-Manual-ISPI-6769765.pdfRead 7 October 2026Actual Garmin Important Safety and Product Information supplied with A04542 US Venu 3S states one year of consumer warranty for non-aviation products. US scope. Exact US retailers agree. NZ Noel Leeming and Dick Smith also state one year, but European terms are not generalized. Statutory rights are separate.

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