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Amazfit Active 3 Premium vs COROS PACE 4

A

Product A: Amazfit

Active 3 Premium

73 of 150 known

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B

Product B: COROS

PACE 4

81 of 150 known

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Only differences

AAmazfit Active 3 Premium

BCOROS PACE 4

General

6 of 10 differ

Series

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

PACE1Maker product pagecoros.com/pace4/specsRead 8 October 2026PACE series history on overview identifies PACE 4 as the November 2025 generation. This record uses the standard polymer model with Black nylon band.

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

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

W335, WPACE4-BLK-N11Retailer pagerunningwarehouse.com/Coros_Pace_4_GPS_Sport_Watch_Nylon_Band/descpage-CPAC4N.htmlRead 8 October 2026Black Nylon stock number WPACE4-BLK-N. Regulatory hardware model W335 is independently confirmed in manufacturer quick-start packaging and FCC radio report. White Nylon, silicone and Aluminum editions are not included.14Owner's manualfccid.io/2BBGF-W335/User-Manual/Users-Manual1-8793551.pdfRead 8 October 2026Maker Quick Start Guide, only page, explicitly identifies W335 and pairing to COROS app. Commercial Black Nylon SKU independently supplied by exact retailer.

GTIN / EAN

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

Not available

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

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

10 November 202517Reviewandroidcentral.com/wearables/coros/i-tested-the-coros-pace-4-and-its-new-best-cheap-running-watch-of-2025Read 8 October 2026Contemporaneous November 10 2025 launch report states availability on this date in US and European markets.

Status

Not available

Available11Retailer pagerunningwarehouse.com/Coros_Pace_4_GPS_Sport_Watch_Nylon_Band/descpage-CPAC4N.htmlRead 8 October 2026Exact Black Nylon US package listed in stock when accessed.

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

Not available

COROS PACE 319Reviewnotebookcheck.net/Coros-Pace-4-launches-as-new-runners-smartwatch-with-AMOLED-display-and-improved-battery-life.1159704.0.htmlRead 23 October 2026Notebookcheck calls the Pace 4 a fourth-generation Pace and names the outgoing Pace 3 as its predecessor.

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

Not available

Not available

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

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

$24917Reviewandroidcentral.com/wearables/coros/i-tested-the-coros-pace-4-and-its-new-best-cheap-running-watch-of-2025Read 8 October 2026Launch price 249 USD for standard PACE 4. US tax treatment not stated.

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

€26917Reviewandroidcentral.com/wearables/coros/i-tested-the-coros-pace-4-and-its-new-best-cheap-running-watch-of-2025Read 8 October 2026Launch price 269 EUR in France for standard PACE 4. Tax treatment not stated. Aluminum and later special editions excluded.

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

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

US11Retailer pagerunningwarehouse.com/Coros_Pace_4_GPS_Sport_Watch_Nylon_Band/descpage-CPAC4N.htmlRead 8 October 2026Retail listing explicitly restricts shipment to US. This reference does not assert regional band or warranty inheritance.

ColoursiThe maker's own colour names

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

Black11Retailer pagerunningwarehouse.com/Coros_Pace_4_GPS_Sport_Watch_Nylon_Band/descpage-CPAC4N.htmlRead 8 October 2026

Segment

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

Sport2Maker product pagecoros.com/pace4Read 8 October 2026Maker describes a GPS sport watch for running, road training and triathlon.

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

Not available

Not available

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

Not available

Not available

Case

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.

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

Not available

Case shape

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

Round1Maker product pagecoros.com/pace4/specsRead 8 October 2026Round case outline in the exact standard PACE 4 maker product image.

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

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

Fibre-reinforced polymer1Maker product pagecoros.com/pace4/specsRead 8 October 2026Materials group names Fiber Reinforced Polymer for both cover and bezel. Aluminum editions are excluded.

Case material (as published)

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

Fiber Reinforced Polymer1Maker product pagecoros.com/pace4/specsRead 8 October 2026Materials > Cover Material and Bezel Material both state Fiber Reinforced Polymer.

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

Not available

Not available

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

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

Height43.4Width43.4Thickness11.8mm(1.7 × 1.7 × 0.5 in)1Maker product pagecoros.com/pace4/specsRead 8 October 2026Size and Weight > Dimensions. Height excludes the optical heart-rate sensor. Android Central lists 13.6 mm without the same exclusion, so its value is not substituted.

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

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

Not available

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

Not available

32g(1.1 oz)1Maker product pagecoros.com/pace4/specsRead 8 October 2026Standard PACE 4 with nylon band. Maker separately gives 40 g with silicone, which is not the selected reference.

Durability

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

5ATM1Maker product pagecoros.com/pace4/specsRead 8 October 2026Durability > Water Resistance. 5 ATM is suitable for surface-water activity, not diving. No safe dive depth is inferred.

Water resistance standard

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

Not available

Dust and water rating

Not available

Not available

Dive rating

Not available

Not available

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

Not available

Not available

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

Not available

Not available

MIL-STD-810 tests

Not available

Not available

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

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

Min-20Max50°C1Maker product pagecoros.com/pace4/specsRead 8 October 2026Durability > Working Temperature -20 to 50 C. Storage -20 to 60 C is a separate range.

Display

7 of 14 differ

Display type

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

OLED1Maker product pagecoros.com/pace4/specsRead 8 October 2026

Display type (as published)

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

Touch Screen Always-On AMOLED Display1Maker product pagecoros.com/pace4/specsRead 8 October 2026

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

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

1.2in(3 cm)1Maker product pagecoros.com/pace4/specsRead 8 October 2026

Resolution

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

390 × 390px1Maker product pagecoros.com/pace4/specsRead 8 October 2026

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

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

Not available

Display area

Not available

Not available

Touchscreen

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

Yes1Maker product pagecoros.com/pace4/specsRead 8 October 2026

Max refresh rateiHighest published display refresh rate in active operation.

Not available

Not available

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

Not available

Not available

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

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

1,500nits15Reviewthe5krunner.com/2025/11/11/coros-pace-4-review-budget-sports-watch-dual-bandRead 8 October 2026Reviewer-stated 1500-nit display capability. No photometer measurement, screen area or ambient-light test details published, so measured brightness is omitted.

Minimum brightness

Not available

Not available

Always-on display

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

Yes1Maker product pagecoros.com/pace4/specsRead 8 October 2026

Display cover

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

Other glass1Maker product pagecoros.com/pace4/specsRead 8 October 2026

Display cover (as published)

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

Mineral Glass1Maker product pagecoros.com/pace4/specsRead 8 October 2026

Platform

7 of 15 differ

Platform

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

Not available

OS at launch

Not available

Not available

Software

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

Not available

Latest OS

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

V3.2008.07Maker product pagesupport.coros.com/hc/en-us/articles/43894707031060-COROS-PACE-4-Release-NotesRead 8 October 2026Latest published PACE 4 firmware, September 26 2026. An FCC test sample firmware V3.1204 is not an OS-at-launch promise.

Works with

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

iOS, Android4Owner's manualsupport.coros.com/hc/en-us/articles/42961616826900-Set-Up-Your-COROS-PACE-4Read 8 October 2026

Phone requirement

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

Not available

App store

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

No15Reviewthe5krunner.com/2025/11/11/coros-pace-4-review-budget-sports-watch-dual-bandRead 8 October 2026Pros/Cons and Daily Usage explicitly say no third-party apps or app store. Account sync to Strava is not installation of third-party watch apps.

Voice assistants

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

Not available

Chipset

Not available

Ambiq Apollo 51016Reviewtechradar.com/health-fitness/smartwatches/coros-pace-4-reviewRead 8 October 2026Performance section names Ambiq Apollo 510 for exact PACE 4. No process node, CPU clock/core layout, GPU, RAM or another product chipset detail is inferred.

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

0 of 2 differ

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

Not available

Not available

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

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

4GB1Maker product pagecoros.com/pace4/specsRead 8 October 2026Memory > Internal Memory 4GB. Shared by music and downloaded maps. Free user space may be lower.

Health sensors

3 of 8 differ

Heart rate sensor

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

Optical Heart Rate Monitor1Maker product pagecoros.com/pace4/specsRead 8 October 2026Data Tracking > Optical Heart Rate Monitor. Tattoos may affect readings.

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

Not available

No15Reviewthe5krunner.com/2025/11/11/coros-pace-4-review-budget-sports-watch-dual-bandRead 8 October 2026Quick answers explicitly says PACE 4 has no ECG sensor. Android Central ECG claims are not used.

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

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

Yes1Maker product pagecoros.com/pace4/specsRead 8 October 2026

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

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

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)

Not available

Not available

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

Not available

Not available

Motion and environment sensors

1 of 9 differ

Accelerometer

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

Yes1Maker product pagecoros.com/pace4/specsRead 8 October 2026

Accelerometer range

Not available

Not available

Gyroscope

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

Yes1Maker product pagecoros.com/pace4/specsRead 8 October 2026

Barometric altimeter

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

Yes1Maker product pagecoros.com/pace4/specsRead 8 October 2026

Compass

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

Yes1Maker product pagecoros.com/pace4/specsRead 8 October 2026

Ambient light sensor

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

Not available

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.

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

Blood oxygen app, Heart rate variability, Sleep tracking, Sleep stages, Stress tracking, Cycle tracking1Maker product pagecoros.com/pace4/specsRead 8 October 2026Data Tracking > Daily Features names Daily Stress, Sleep with REM and HRV. Oximeter app and cycle tracking supported by exact setup manual. No continuous resting-heart-rate interval inferred.2Maker product pagecoros.com/pace4Read 8 October 2026Recovery and Wellness Hub names sleep stages, HRV and cycle tracking. Current specification daily features explicitly names Daily Stress. Blood oxygen app is documented by the model setup manual. Continuous per-second resting HR is not assumed.4Owner's manualsupport.coros.com/hc/en-us/articles/42961616826900-Set-Up-Your-COROS-PACE-4Read 8 October 2026Setup manual > Sleep and Wellness Features names sleep, overnight HRV and menstrual cycles. Oximeter section describes manual SpO2 readings. Daily Stress toggle is documented under System > More Settings.

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

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

VO2 max, Training load, Recovery advice, Running power, Pool swim, Open water swim, Interval workouts, Route navigation, Turn-by-turn navigation, Trackback1Maker product pagecoros.com/pace4/specsRead 8 October 2026Data Tracking > EvoLab explicitly lists training load, recovery and VO2 max. Basic Interval Training is named. Back-To-Start navigation is documented. Purchase FAQ separately proves swimming and running-power plans.3Maker product pagecoros.com/buy/pace4Read 8 October 2026FAQ names VO2 max, running power based plans, intervals, route guidance, pool and open-water swim. EvoLab specification names training load and recovery. Setup manual Navigation Settings names Back to Start retracing the GPS track. No automatic workout detection or exact sports count is inferred.4Owner's manualsupport.coros.com/hc/en-us/articles/42961616826900-Set-Up-Your-COROS-PACE-4Read 8 October 2026Navigation Settings > Turn by Turn and Back to Start retracing your GPS track. Structured training metrics and swimming are documented on product spec and purchase pages.

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

Not available

Not available

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

Not available

Not available

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

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

Heart rate strap, Power meter, Foot pod15Reviewthe5krunner.com/2025/11/11/coros-pace-4-review-budget-sports-watch-dual-bandRead 8 October 2026Sports connectivity explicitly names Bluetooth heart-rate monitors, cycling power meters, COROS POD/POD 2 and Stryd. No smart-trainer capability is inferred.

Safety

3 of 6 differ

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

Not available

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.

Not available

Yes10Maker product pagesupport.coros.com/hc/en-us/articles/25514157012116-Safety-AlertsRead 8 October 2026Manual Safety Alert sends location and live tracking to up to three preset contacts during outdoor activities. Paired phone connected by Bluetooth with COROS app running and phone cellular service required. Email and regional SMS support. It does not contact local emergency services.

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

Not available

Not available

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

Not available

Yes9Maker product pagesupport.coros.com/hc/en-us/articles/51716258730772-How-to-Use-Live-TrackingRead 8 October 2026PACE 4 compatibility explicit. Outdoor activities only. Paired phone, COROS app running in background and internet connection required. Firmware V3.1808.0 added it July 29 2026.

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

Not available

No4Owner's manualsupport.coros.com/hc/en-us/articles/42961616826900-Set-Up-Your-COROS-PACE-4Read 8 October 2026Flashlight illuminates the AMOLED display white. It is not a dedicated hardware LED.

Positioning

2 of 3 differ

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

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

GPS, GLONASS, Galileo, BeiDou, QZSS1Maker product pagecoros.com/pace4/specsRead 8 October 2026Geo Location > Satellite Systems. Signal bands are not inferred from dual-frequency support.

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

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

Yes1Maker product pagecoros.com/pace4/specsRead 8 October 2026

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

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

Yes7Maker product pagesupport.coros.com/hc/en-us/articles/43894707031060-COROS-PACE-4-Release-NotesRead 8 October 2026September 26 2026 V3.2008.0 explicitly adds Global map support. Current spec sheet lists downloadable Landscape and Topo maps, while online setup gives Map Manager download instructions. Launch reviews and an unchanged purchase FAQ describe pre-update breadcrumb-only behavior.

Connectivity

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

Not available

Yes1Maker product pagecoros.com/pace4/specsRead 8 October 2026

Bluetooth version

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

5.412Regulatory filingfccid.io/2BBGF-W335/Test-Report/Test-Report-8793424.pdfRead 8 October 2026Printed page 7, Product Information. Hardware W335 V5, tested firmware V3.1204. Published Bluetooth version 5.4.

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

Not available

Yes1Maker product pagecoros.com/pace4/specsRead 8 October 2026

Wi-Fi standard

Not available

Wi-Fi 613Regulatory filingfccid.io/2BBGF-W335/Test-Report/Test-Report2-8793544.pdfRead 8 October 2026Printed page 7, W335 V5 / V3.1204. Wi-Fi Specification IEEE 802.11b/g/n/ax. 802.11ax maps to Wi-Fi 6. Tested operation is 20 MHz channels at 2412-2462 MHz.

Wi-Fi bands

Not available

2.4 GHz13Regulatory filingfccid.io/2BBGF-W335/Test-Report/Test-Report2-8793544.pdfRead 8 October 2026Exact W335 Wi-Fi report specifies 2.4 GHz operation at 2412-2462 MHz. No 5/6 GHz capability is inferred.

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

Not available

Not available

Network

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

Contactless payments

Not available

No15Reviewthe5krunner.com/2025/11/11/coros-pace-4-review-budget-sports-watch-dual-bandRead 8 October 2026Quick answers explicitly says no NFC payment support. Physical NFC hardware absence is not inferred.

Payment services

Not available

Not available

Ultra-wideband

Not available

Not available

Satellite

Not available

Not available

ANT+

Not available

No15Reviewthe5krunner.com/2025/11/11/coros-pace-4-review-budget-sports-watch-dual-bandRead 8 October 2026Sports connectivity and Quick answers explicitly say Bluetooth sensors only, not ANT+.

Audio

3 of 4 differ

Speaker

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

No8Owner's manualsupport.coros.com/hc/en-us/articles/42970041319060-Daily-FeaturesRead 8 October 2026Music section explicitly states the watch itself has no speakers and requires a Bluetooth headset or external speaker for local MP3 playback.

Microphones

Not available

216Reviewtechradar.com/health-fitness/smartwatches/coros-pace-4-reviewRead 8 October 2026Design section explicitly identifies an integrated dual-microphone system. Count supported independently by Android Central.

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

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

None15Reviewthe5krunner.com/2025/11/11/coros-pace-4-review-budget-sports-watch-dual-bandRead 8 October 2026Exact review describes microphone with no speaker and phone message/call alerts. Android Central also explicitly says it lacks a speaker for Bluetooth calling. These alerts are not voice-call handling.

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

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

Yes1Maker product pagecoros.com/pace4/specsRead 8 October 2026

Controls

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

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

24Owner's manualsupport.coros.com/hc/en-us/articles/42961616826900-Set-Up-Your-COROS-PACE-4Read 8 October 2026Two push buttons excluding the clickable rotating Digital Dial. Setup > Operating PACE 4 names all three controls.

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

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

Back/Lap Button, Action Button4Owner's manualsupport.coros.com/hc/en-us/articles/42961616826900-Set-Up-Your-COROS-PACE-4Read 8 October 2026

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

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

Rotating4Owner's manualsupport.coros.com/hc/en-us/articles/42961616826900-Set-Up-Your-COROS-PACE-4Read 8 October 2026Digital Dial scrolls and presses to confirm. No haptic crown claim is inferred.

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

Not available

Not available

Gestures

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

Raise wrist to wake display4Owner's manualsupport.coros.com/hc/en-us/articles/42961616826900-Set-Up-Your-COROS-PACE-4Read 8 October 2026

Battery and charging

7 of 13 differ

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

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

323mAh12Regulatory filingfccid.io/2BBGF-W335/Test-Report/Test-Report-8793424.pdfRead 8 October 2026Printed page 7 states battery capacity 323 mAh at 3.91 V and 1.263 Wh for W335. Battery rating, not a capacity derived from runtime or charging input.

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

AAmazfit Active 3 Premium

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

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

BCOROS PACE 4

Mode	With solar	Hours (h)
Smartwatch	No	456
Always-on	No	144
GPS, all systems	No	41
GPS, all systems, always-on display	No	30
GPS, dual-band	No	31
GPS, dual-band, always-on display	No	24
GPS, all systems with music	No	14
GPS, dual-band with music	No	12

Source1Maker product pagecoros.com/pace4/specsRead 8 October 2026Battery > All Systems and Dual Frequency tables directly state 14 hours and 12 hours with offline music, respectively. AOD behavior during these music modes is not stated. Other endurance rows match the dedicated battery help table.6Maker product pagesupport.coros.com/hc/en-us/articles/23476623096980-Battery-SpecificationsRead 8 October 2026PACE 4 row: daily use with Sleep Tracking + Daily Stress, 19 days with AOD off or 6 days with AOD on. High All Systems 41 hours or 30 with AOD. Max Dual Frequency 31 hours or 24 with AOD. Exact product specifications additionally give All Systems with offline music 14 hours and Dual Frequency with music 12 hours, without stating AOD behavior. Screen/navigation/satellite reception/accessories affect endurance. No GPS-only row is published.

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

288h=CalculatedFrom Claimed battery life

456h=CalculatedFrom Claimed battery life

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

96h=CalculatedFrom Claimed battery life

144h=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.

24h=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.

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

Proprietary plug5Owner's manualsupport.coros.com/hc/en-us/articles/42974723632276-Charging-Your-PACE-4Read 8 October 2026Metal pins on A2 adapter plug into the rear watch charging port and snap into place. Standard USB-C connects to A2, not directly to the watch. No Qi or generic magnetic-pin interoperability is claimed.

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

120min1Maker product pagecoros.com/pace4/specsRead 8 October 2026Battery > Charging Time states Less Than 2 Hours. Stored 120 minutes is the upper bound of the nominal full-charge claim, not an exact duration or a measured empty-to-full test.

Measured

None of 4 known

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

Strap

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.

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

22mm1Maker product pagecoros.com/pace4/specsRead 8 October 2026

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

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

Yes1Maker product pagecoros.com/pace4/specsRead 8 October 2026

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

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

22 mm quick-release straps1Maker product pagecoros.com/pace4/specsRead 8 October 2026

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

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

Nylon1Maker product pagecoros.com/pace4/specsRead 8 October 2026Selected standard Black Nylon package WPACE4-BLK-N. Other available straps are excluded from the reference.

Strap

Not available

Black nylon band1Maker product pagecoros.com/pace4/specsRead 8 October 2026Selected Black Nylon package, not a silicone strap or Aluminum Black Crystal edition.

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

AAmazfit Active 3 Premium

Not available

BCOROS PACE 4

Size	Wrist (min) (mm)	Wrist (max) (mm)
Nylon	135	205

Source1Maker product pagecoros.com/pace4/specsRead 8 October 2026Watch Band > Size Nylon gives 135-205 mm. The silicone range is 130-215 mm and is excluded.

Regulatory

0 of 3 differ

FCC ID

Not available

2BBGF-W33512Regulatory filingfccid.io/2BBGF-W335/Test-Report/Test-Report-8793424.pdfRead 8 October 2026Cover and Product Information identify COROS PACE 4 / W335 / 2BBGF-W335. The report is a public mirror of the FCC manufacturer filing.

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

Not available

Not available

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

Not available

Not available

Other certifications

Not available

Not available

In the box

1 of 2 differ

In the box

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

COROS PACE 4 GPS Watch with Black nylon band, COROS A2 Charging Adapter4Owner's manualsupport.coros.com/hc/en-us/articles/42961616826900-Set-Up-Your-COROS-PACE-4Read 8 October 2026What Is In the Box lists PACE 4 and COROS A2 Charging Adapter. The selected retail package supplies a Black nylon band. Product page states USB-C cable is not included.

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

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

No4Owner's manualsupport.coros.com/hc/en-us/articles/42961616826900-Set-Up-Your-COROS-PACE-4Read 8 October 2026A2 is a watch-side charging adapter. The box does not contain a mains/USB power adapter.

Links

Not compared

Product page

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

coros.com/pace41Maker product pagecoros.com/pace4/specsRead 8 October 2026

Spec sheet

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

coros.com/pace4/specs1Maker product pagecoros.com/pace4/specsRead 8 October 2026

Manual

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

support.coros.com/hc/en-us/articles/42961616826900-Set-Up-Your-COROS-PACE-44Owner's manualsupport.coros.com/hc/en-us/articles/42961616826900-Set-Up-Your-COROS-PACE-4Read 8 October 2026Exact model online setup and operating manual, with linked daily features, activities, metrics and charging instructions.

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.

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

2years18Maker product pagesupport.coros.com/hc/en-us/articles/360039803532-COROS-Warranty-PolicyRead 8 October 2026COROS Warranty Details states 2-year warranty from original activation for watches. Straps, charging cables and nonbattery accessories separately have 6-month coverage. Local consumer-law rights may differ.

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