Smartwatches / Compare

Garmin Venu Sq 2 vs Xiaomi Watch S4

A

Product A: Garmin

Venu Sq 2

87 of 150 known

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B

Product B: Xiaomi

Watch S4

83 of 150 known

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Every value links to where we found it.

Only differences

AGarmin Venu Sq 2

BXiaomi Watch S4

General

7 of 10 differ

Series

Venu1Maker product pagegarmin.com/en-NZ/p/801643Read 15 October 2026Venu Sq 2 series product family

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.

010-02701-00, 010-02701-01, 010-02701-02, 010-02701-80, AA43901Maker product pagegarmin.com/en-NZ/p/801643Read 15 October 2026NZ store part numbers2Maker product pagegarmin.com.sg/products/wearables/venu-sq-2-grayRead 15 October 2026Singapore page lists part number 010-02701-80 for Slate Aluminum Bezel with Shadow Gray Case and Silicone Band10Regulatory filingstatic.garmin.com/pumac/Venu%20Sq%202_DoC-EU.pdfRead 15 October 2026Regulatory model number AA4390, Venu Sq 2

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

Not available

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.

1 September 20224Press releasegarmin.com/en-US/newsroom/press-release/wearables-health/find-new-ways-to-move-with-the-venu-sq-2-series-from-garmin%EF%BF%BCRead 15 October 2026Announced September 1, 2022 together with the Venu Sq 2 Music Edition

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/801643Read 15 October 2026Product page is live and not marked discontinued

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.

Not available

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.

$249.994Press releasegarmin.com/en-US/newsroom/press-release/wearables-health/find-new-ways-to-move-with-the-venu-sq-2-series-from-garmin%EF%BF%BCRead 15 October 2026Suggested retail price USD 249.99 for the Venu Sq 2. US price excludes tax

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.

€269.995Spec databasenextpit.de/smartwatches/garmin-venu-sq-2Read 15 October 2026German unverbindlicher Verkaufspreis EUR 269.99 incl. VAT for the Venu Sq 2 launched in September 2022. Not a Garmin source. A 2023 Android Authority roundup also lists EUR 269

€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.

US, DE4Press releasegarmin.com/en-US/newsroom/press-release/wearables-health/find-new-ways-to-move-with-the-venu-sq-2-series-from-garmin%EF%BF%BCRead 15 October 2026US launch with USD pricing. The German price comes from nextpit

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

Slate Aluminum Bezel with Shadow Gray Case and Silicone Band, Cream Gold Aluminum Bezel with White Case and Silicone Band, Metallic Mint Aluminum Bezel with Cool Mint Case and Silicone Band1Maker product pagegarmin.com/en-NZ/p/801643Read 15 October 2026Part numbers 010-02701-00, -01 and -02 with the product variation names read from the page data

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/801643Read 15 October 2026Marketed as a GPS fitness and health smartwatch

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

6 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.

40mm8Spec databasegsmarena.com/garmin_venu_sq_2_venu_sq_2_music_edition_specs_features_price_sale_date-news-55627.phpRead 15 October 2026Both watches come in a single 40 mm case size. The Music edition is the one with Wi-Fi and music storage

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

Rectangular4Press releasegarmin.com/en-US/newsroom/press-release/wearables-health/find-new-ways-to-move-with-the-venu-sq-2-series-from-garmin%EF%BF%BCRead 15 October 2026Release describes a 1.4-inch rectangular AMOLED touchscreen display

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/801643Read 15 October 2026General: case material fibre-reinforced polymer, bezel anodized aluminium. The enum value follows the housing body

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)

Fiber-reinforced polymer case. Anodized aluminum bezel.1Maker product pagegarmin.com/en-NZ/p/801643Read 15 October 2026General: case material fibre-reinforced polymer and bezel material anodized aluminium

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.

Not available

Not available

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

Height40.6Width37Thickness11.1mm(1.6 × 1.5 × 0.4 in)1Maker product pagegarmin.com/en-NZ/p/801643Read 15 October 2026Physical size 40.6 x 37.0 x 11.1 mm read as height x width x thickness. DC Rainmaker measured the thickness about 1.5 mm higher because Garmin leaves out the rear sensor bump

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.

38g(1.3 oz)1Maker product pagegarmin.com/en-NZ/p/801643Read 15 October 2026Weight 38.0 g on the Singapore page. DC Rainmaker measured the same

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.

Not available

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.

5ATM1Maker product pagegarmin.com/en-NZ/p/801643Read 15 October 2026Water rating: Swim, 5 ATM

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-20Max55°C3Owner's manualwww8.garmin.com/manuals/webhelp/GUID-C3225F6F-DF15-4404-9E20-05C4FDCD1207/EN-US/Venu_Sq_2_OM_EN-US.pdfRead 15 October 2026Specifications, printed page 58: -20 to 55 degrees C. Charging range is 0 to 45 degrees C

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/801643Read 15 October 2026

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/801643Read 15 October 2026Watch display type: AMOLED with optional Always-On mode

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.

1.41in(3.6 cm)1Maker product pagegarmin.com/en-NZ/p/801643Read 15 October 2026Display Size 1.41 inch (35.9 mm) diagonal

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

320 × 360px1Maker product pagegarmin.com/en-NZ/p/801643Read 15 October 2026Display Resolution 320 x 360 pixels

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/801643Read 15 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/801643Read 15 October 2026Optional Always-On mode, battery cost in the manual3Owner's manualwww8.garmin.com/manuals/webhelp/GUID-C3225F6F-DF15-4404-9E20-05C4FDCD1207/EN-US/Venu_Sq_2_OM_EN-US.pdfRead 15 October 2026Customizing the Display Settings, printed page 56: Always On keeps watch face data visible and affects battery life

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/801643Read 15 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/801643Read 15 October 2026Lens material Corning Gorilla Glass 3

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

Platform

4 of 15 differ

Platform

Proprietary11Maker product pageforums.garmin.com/sports-fitness/healthandwellness/f/venu-sq-2/416865/venu-sq-2-software-version---2-69Read 15 October 2026Garmin proprietary firmware

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 software 2.6911Maker product pageforums.garmin.com/sports-fitness/healthandwellness/f/venu-sq-2/416865/venu-sq-2-software-version---2-69Read 15 October 2026Software version 2.69 live on 7/16/2025. It is the newest thread in the Venu Sq 2 forum

Not available

Works with

Android, iOS1Maker product pagegarmin.com/en-NZ/p/801643Read 15 October 2026Smartphone compatibility: iPhone and Android

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

Not available

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

Yes3Owner's manualwww8.garmin.com/manuals/webhelp/GUID-C3225F6F-DF15-4404-9E20-05C4FDCD1207/EN-US/Venu_Sq_2_OM_EN-US.pdfRead 15 October 2026Connect IQ Features: install Connect IQ apps and watch faces on the watch

Not available

Voice assistants

Not available

Not available

Chipset

Not available

Not available

Process

Not available

Not available

CPU cores

Not available

Not available

CPU configuration

Not available

Not available

Max CPU clock

Not available

Not available

GPU

Not available

Not available

Low-power coprocessor

Not available

Not available

Memory

1 of 2 differ

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

Not available

Not available

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

4GB1Maker product pagegarmin.com/en-NZ/p/801643Read 15 October 2026Memory/History 4 GB

Not available

Health sensors

6 of 8 differ

Heart rate sensor

Garmin Elevate wrist heart rate monitor (Gen 4)1Maker product pagegarmin.com/en-NZ/p/801643Read 15 October 2026Sensors list the Garmin Elevate wrist heart rate monitor6Reviewdcrainmaker.com/2022/09/garmin-venu-depth-review.htmlRead 15 October 2026The optical sensor is the Garmin Elevate Gen4 sensor, the same as other Garmin watches of the time

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.

No6Reviewdcrainmaker.com/2022/09/garmin-venu-depth-review.htmlRead 15 October 2026No ECG features at launch

Not available

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

Yes1Maker product pagegarmin.com/en-NZ/p/801643Read 15 October 2026Pulse Ox blood oxygen saturation, spot check and optional all-day and in sleep

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.

No6Reviewdcrainmaker.com/2022/09/garmin-venu-depth-review.htmlRead 15 October 2026The optical sensor does not measure skin temperature. The Thermometer row in the Garmin spec needs an external tempe sensor

Not available

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

None7Spec databasegadgetsandwearables.com/technical-specs/garmin-venu-sq-2Read 15 October 2026Blood pressure row says No

Not available

Body composition sensor

No7Spec databasegadgetsandwearables.com/technical-specs/garmin-venu-sq-2Read 15 October 2026Body composition row says No

Not available

Skin conductance (EDA)

No7Spec databasegadgetsandwearables.com/technical-specs/garmin-venu-sq-2Read 15 October 2026Galvanic skin response row says No

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

2 of 9 differ

Accelerometer

Yes1Maker product pagegarmin.com/en-NZ/p/801643Read 15 October 2026Sensors list

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

Accelerometer range

Not available

Not available

Gyroscope

No6Reviewdcrainmaker.com/2022/09/garmin-venu-depth-review.htmlRead 15 October 2026Comparison with the Venu 2 series: the Venu Sq 2 has no internal gyro

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

Barometric altimeter

No6Reviewdcrainmaker.com/2022/09/garmin-venu-depth-review.htmlRead 15 October 2026The Venu 2 has a barometric altimeter, the Venu Sq 2 does not. No stair tracking. The Gadgets and Wearables page says yes, which conflicts

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

Compass

Yes3Owner's manualwww8.garmin.com/manuals/webhelp/GUID-C3225F6F-DF15-4404-9E20-05C4FDCD1207/EN-US/Venu_Sq_2_OM_EN-US.pdfRead 15 October 2026Compass, printed page 41: 3-axis compass with automatic calibration

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/801643Read 15 October 2026Sensors list

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 tracking1Maker product pagegarmin.com/en-NZ/p/801643Read 15 October 2026Wrist heart rate every second, abnormal heart rate alerts (high and low), Pulse Ox, sleep score and stages, all-day stress, Health Snapshot with HRV, women's health tracking. Body Battery is not stored as a readiness score3Owner's manualwww8.garmin.com/manuals/webhelp/GUID-C3225F6F-DF15-4404-9E20-05C4FDCD1207/EN-US/Venu_Sq_2_OM_EN-US.pdfRead 15 October 2026Heart Rate Variability and Stress Level, printed page 21. Health Snapshot records heart rate variability, printed page 4. Women's health, printed page 23

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, Pool swim, Strength rep counting, Golf courses1Maker product pagegarmin.com/en-NZ/p/801643Read 15 October 2026Move IQ, VO2 Max (Run), automatic rep counting, pool swimming and golf features. Details are in the manual3Owner's manualwww8.garmin.com/manuals/webhelp/GUID-C3225F6F-DF15-4404-9E20-05C4FDCD1207/EN-US/Venu_Sq_2_OM_EN-US.pdfRead 15 October 2026Garmin Move IQ, printed page 31: starts timed walking and running activities automatically. About VO2 Max. Estimates, printed page 38. Strength training rep counting, printed pages 4 and 13. Downloading Golf Courses, printed page 8. The Back to Start compass arrow is not stored as TracBack

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, Speed and cadence, Foot pod1Maker product pagegarmin.com/en-NZ/p/801643Read 15 October 2026Heart rate monitors, speed and cadence sensor and foot pod over ANT+. The manual says Bluetooth sensors work only on the Music edition3Owner's manualwww8.garmin.com/manuals/webhelp/GUID-C3225F6F-DF15-4404-9E20-05C4FDCD1207/EN-US/Venu_Sq_2_OM_EN-US.pdfRead 15 October 2026Your Wireless Sensors, printed pages 42-43: heart rate monitor, foot pod, speed and cadence sensors. Bluetooth sensors work only with the Music edition

Not available

Safety

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

No3Owner's manualwww8.garmin.com/manuals/webhelp/GUID-C3225F6F-DF15-4404-9E20-05C4FDCD1207/EN-US/Venu_Sq_2_OM_EN-US.pdfRead 15 October 2026Incident Detection, printed page 52: a supplemental feature available only for certain outdoor activities. Not counted as general fall detection

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.

Yes3Owner's manualwww8.garmin.com/manuals/webhelp/GUID-C3225F6F-DF15-4404-9E20-05C4FDCD1207/EN-US/Venu_Sq_2_OM_EN-US.pdfRead 15 October 2026Requesting Assistance, printed page 53: hold the button for three vibrations to send an assistance request with location to emergency contacts through the paired phone, which needs a data plan

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.

Yes3Owner's manualwww8.garmin.com/manuals/webhelp/GUID-C3225F6F-DF15-4404-9E20-05C4FDCD1207/EN-US/Venu_Sq_2_OM_EN-US.pdfRead 15 October 2026Turning On LiveTrack, printed page 53: LiveTrack session shared with contacts

Not available

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

No7Spec databasegadgetsandwearables.com/technical-specs/garmin-venu-sq-2Read 15 October 2026LED flashlight row says No

Not available

Positioning

3 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/801643Read 15 October 2026Sensors: GPS, GLONASS and Galileo

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.

Not available

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.

No7Spec databasegadgetsandwearables.com/technical-specs/garmin-venu-sq-2Read 15 October 2026Offline maps row says No and Garmin lists no maps

Not available

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.

Yes1Maker product pagegarmin.com/en-NZ/p/801643Read 15 October 2026Connectivity lists Bluetooth

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.

No1Maker product pagegarmin.com/en-NZ/p/801643Read 15 October 2026Connectivity row lists Bluetooth and ANT+ only. The Music edition rows add Wi-Fi3Owner's manualwww8.garmin.com/manuals/webhelp/GUID-C3225F6F-DF15-4404-9E20-05C4FDCD1207/EN-US/Venu_Sq_2_OM_EN-US.pdfRead 15 October 2026Wi-Fi Connectivity Features, printed page 49: Wi-Fi is available only on the Venu Sq 2 Music watch

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

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.

No7Spec databasegadgetsandwearables.com/technical-specs/garmin-venu-sq-2Read 15 October 2026Cellular row says No. No cellular model exists

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.

Yes1Maker product pagegarmin.com/en-NZ/p/801643Read 15 October 2026Garmin Pay contactless payments. The NFC module is also named in the regulatory letter

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/801643Read 15 October 2026Garmin Pay contactless payments through participating providers

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/801643Read 15 October 2026Garmin Pay

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

No7Spec databasegadgetsandwearables.com/technical-specs/garmin-venu-sq-2Read 15 October 2026UWB row says No

Not available

Satellite

None7Spec databasegadgetsandwearables.com/technical-specs/garmin-venu-sq-2Read 15 October 2026Satellite SOS row says No

Not available

ANT+

Yes1Maker product pagegarmin.com/en-NZ/p/801643Read 15 October 2026Connectivity: Bluetooth, ANT+

Not available

Audio

4 of 4 differ

Speaker

No7Spec databasegadgetsandwearables.com/technical-specs/garmin-venu-sq-2Read 15 October 2026Speakers row says No

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

Microphones

07Spec databasegadgetsandwearables.com/technical-specs/garmin-venu-sq-2Read 15 October 2026Microphone row says No

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.

None7Spec databasegadgetsandwearables.com/technical-specs/garmin-venu-sq-2Read 15 October 2026Bluetooth calling row says No. The watch only rejects calls with a text on Android

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.

No7Spec databasegadgetsandwearables.com/technical-specs/garmin-venu-sq-2Read 15 October 2026On-board music storage No. Music storage is the separate Music edition

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

5 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.

23Owner's manualwww8.garmin.com/manuals/webhelp/GUID-C3225F6F-DF15-4404-9E20-05C4FDCD1207/EN-US/Venu_Sq_2_OM_EN-US.pdfRead 15 October 2026Overview, printed page 1: Action button and Back (Menu) button

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 (Menu) button3Owner's manualwww8.garmin.com/manuals/webhelp/GUID-C3225F6F-DF15-4404-9E20-05C4FDCD1207/EN-US/Venu_Sq_2_OM_EN-US.pdfRead 15 October 2026Overview, printed page 1

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.

None3Owner's manualwww8.garmin.com/manuals/webhelp/GUID-C3225F6F-DF15-4404-9E20-05C4FDCD1207/EN-US/Venu_Sq_2_OM_EN-US.pdfRead 15 October 2026No crown. Controls are two buttons and the touchscreen

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.

Not available

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

Rotate wrist toward body to turn on the display, Double-tap the touchscreen to wake the watch3Owner's manualwww8.garmin.com/manuals/webhelp/GUID-C3225F6F-DF15-4404-9E20-05C4FDCD1207/EN-US/Venu_Sq_2_OM_EN-US.pdfRead 15 October 2026Customizing the Display Settings, printed page 56: Gesture turns on the display when the wrist rotates toward the body. Overview, printed page 1: double-tap to wake

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

10 of 13 differ

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

205mAh9Regulatory filingstatic.garmin.com/pumac/Venu%20Sq%202.pdfRead 15 October 2026FCC test report lists the battery model 361-00136-20 with power rating 3.87V, 205mAh. Rated capacity from the test report, not a Garmin marketing figure

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 Sq 2

Mode	With solar	Hours (h)
Smartwatch	No	264
Low power	No	288
Always-on	No	48
GPS	No	26
GPS, all systems	No	20

Source1Maker product pagegarmin.com/en-NZ/p/801643Read 15 October 2026Smartwatch mode 11 days (264 h), battery saver smartwatch mode 12 days (288 h), GPS-only GNSS 26 h, all-systems GNSS 20 h. The manual adds always-on display 2 days. Battery life depends on configuration and use3Owner's manualwww8.garmin.com/manuals/webhelp/GUID-C3225F6F-DF15-4404-9E20-05C4FDCD1207/EN-US/Venu_Sq_2_OM_EN-US.pdfRead 15 October 2026Specifications, printed page 58: always on display mode up to 2 days. Another table row is for the Music edition and is not stored. DC Rainmaker quotes 3 days for the same mode

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.

264h=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.

48h=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.

26h=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/801643Read 15 October 2026Charging method: Garmin proprietary plug charger

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

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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 Sq 2

Not available

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.

20mm1Maker product pagegarmin.com/en-NZ/p/801643Read 15 October 202620 mm industry standard

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/801643Read 15 October 2026Quick Release bands: yes

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.

20 mm industry-standard quick-release bands1Maker product pagegarmin.com/en-NZ/p/801643Read 15 October 2026Quick Release bands (20 mm, Industry standard). The manual says 20 mm wide, standard, quick-release bands3Owner's manualwww8.garmin.com/manuals/webhelp/GUID-C3225F6F-DF15-4404-9E20-05C4FDCD1207/EN-US/Venu_Sq_2_OM_EN-US.pdfRead 15 October 2026

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/801643Read 15 October 2026Strap material: silicone

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

Not available

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 Sq 2

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

Source1Maker product pagegarmin.com/en-NZ/p/801643Read 15 October 2026Fits wrists with a circumference of 125-190 mm with the supplied band

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

2 of 3 differ

FCC ID

IPH-A43909Regulatory filingstatic.garmin.com/pumac/Venu%20Sq%202.pdfRead 15 October 2026FCC test report appended to the Chile SUBTEL letter: FCC ID IPH-A4390, model AA4390, Smart Watch, applicant Garmin International

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

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

EU RoHS 2011/65/EU and applicable amendments, EU Radio Equipment Directive 2014/53/EU, EU battery legislation 2008/98/EC as amended by (EU) 2023/1542, Chile SUBTEL Resolution 737 compliance declaration (2026)9Regulatory filingstatic.garmin.com/pumac/Venu%20Sq%202.pdfRead 15 October 2026Chile SUBTEL Resolution 737 compliance letter dated 03-Feb-26 for model AA4390 with NFC, ANT and BLE modules10Regulatory filingstatic.garmin.com/pumac/Venu%20Sq%202_DoC-EU.pdfRead 15 October 2026EU Declaration of Conformity under 2011/65/EU, 2014/53/EU and 2008/98/EC as amended by (EU) 2023/1542, revised 02/04/2024

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

1 of 2 differ

In the box

Venu Sq 2, Charging/data cable, Documentation1Maker product pagegarmin.com/en-NZ/p/801643Read 15 October 20262Maker product pagegarmin.com.sg/products/wearables/venu-sq-2-grayRead 15 October 2026In the box: Venu Sq 2, charging/data cable and documentation. No power adapter is listed

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/801643Read 15 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

Not compared

Product page

www.garmin.com/en-US/p/8016431Maker product pagegarmin.com/en-NZ/p/801643Read 15 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/8016431Maker product pagegarmin.com/en-NZ/p/801643Read 15 October 2026

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-C3225F6F-DF15-4404-9E20-05C4FDCD1207/EN-US/Venu_Sq_2_OM_EN-US.pdf3Owner's manualwww8.garmin.com/manuals/webhelp/GUID-C3225F6F-DF15-4404-9E20-05C4FDCD1207/EN-US/Venu_Sq_2_OM_EN-US.pdfRead 15 October 2026Venu Sq 2 Owner's Manual covering the Venu Sq 2 and the Venu Sq 2 Music, 72 pages, May 2025

Not available

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

1 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.

1year12Maker product pagegarmin.com/en-NZ/legal/consumer-limited-warrantyRead 15 October 2026Non-aviation products are warranted for one year from purchase. NZ policy page. Statutory rights remain separate

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