Smartwatches / Compare

COROS PACE 4 vs Suunto Run 2

A

Product A: COROS

PACE 4

81 of 150 known

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B

Product B: Suunto

Run 2

80 of 150 known

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Only differences

ACOROS PACE 4

BSuunto Run 2

General

5 of 10 differ

Series

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.

Run1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026Maker names the Suunto Run line. The page is Suunto Run 2.

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

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.

SS051723000, SS051724000, SS051725000, SS051639000, SS051640000, SS051641000, OW2612Maker product pageus.suunto.com/products/suunto-run-2-all-black.jsRead 14 October 2026Suunto US store product data lists SS051639000 (All Black, 64 GB), SS051640000 (Feather Gold, 64 GB), SS051641000 (Aloe Green, 64 GB), SS051723000 (All Black, 4 GB), SS051724000 (Feather Gold, 4 GB) and SS051725000 (Aloe Green, 4 GB). OW261 is the hardware type in the safety guide.4Maker spec sheet (PDF)ns.suunto.com/Manuals/Suunto_Run_2/Safty_and_Regulatory/Run%202%20Safty_and_Regulatory.pdfRead 14 October 2026English section, printed pages 4 to 8: radio equipment type and model no. OW261. The online guide and the PDF guide print OW234 in their CE section, which looks copied from the original Suunto Run, so OW261 from the Run 2 safety guide is used.

GTIN / EAN

Not available

6417084219831, 6417084219848, 6417084219855, 6417084218834, 6417084218841, 641708421885811Retailer pagewatchnation.com/products/suunto-run-2-46-5mm-4gb-amoled-digital-all-black-silicone-smart-fitness-watch-ss051723000Read 14 October 2026Watchnation product page for SS051723000 (All Black, 4 GB) lists GTIN 6417084219831. The EAN-13 check digit is valid. Maker pages do not publish GTINs.12Retailer pagewatchnation.com/products/suunto-run-2-46-5mm-4gb-amoled-digital-feather-gold-silicone-smart-fitness-watch-ss051724000Read 14 October 2026Watchnation product page for SS051724000 (Feather Gold, 4 GB) lists GTIN 6417084219848. The EAN-13 check digit is valid. Maker pages do not publish GTINs.13Retailer pagewatchnation.com/products/suunto-run-2-46-5mm-4gb-amoled-digital-aloe-green-silicone-smart-fitness-watch-ss051725000Read 14 October 2026Watchnation product page for SS051725000 (Aloe Green, 4 GB) lists GTIN 6417084219855. The EAN-13 check digit is valid. Maker pages do not publish GTINs.14Retailer pagewatchnation.com/products/suunto-run-2-46-5mm-64gb-amoled-digital-all-black-silicone-smart-fitness-watch-ss051639000Read 14 October 2026Watchnation product page for SS051639000 (All Black, 64 GB) lists GTIN 6417084218834. The EAN-13 check digit is valid. Maker pages do not publish GTINs.15Retailer pagewatchnation.com/products/suunto-run-2-46-5mm-64gb-amoled-digital-feather-gold-silicone-smart-fitness-watch-ss051640000Read 14 October 2026Watchnation product page for SS051640000 (Feather Gold, 64 GB) lists GTIN 6417084218841. The EAN-13 check digit is valid. Maker pages do not publish GTINs.16Retailer pagewatchnation.com/products/suunto-run-2-46-5mm-64gb-amoled-digital-aloe-green-silicone-smart-fitness-watch-ss051641000Read 14 October 2026Watchnation product page for SS051641000 (Aloe Green, 64 GB) lists GTIN 6417084218858. The EAN-13 check digit is valid. Maker pages do not publish GTINs.

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

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.

8 September 20265Reviewtomsguide.com/wellness/smartwatches/i-tested-the-suunto-run-2-for-two-weeks-and-its-an-accurate-and-attractive-sports-watch-with-mapsRead 14 October 2026Tom's Guide: the Suunto Run 2 launched on 8 September 2026.6Press articleactive.com/running/articles/suunto-run-2-launchRead 14 October 2026Launch report: pre-orders open September 8, 2026 at $349 for 4 GB and $399 for 64 GB.

Status

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.

Available2Maker product pageus.suunto.com/products/suunto-run-2-all-black.jsRead 14 October 2026All six variants show as available on the US store. The products were published on 2026-09-08.

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

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.

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

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.

$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.

$3492Maker product pageus.suunto.com/products/suunto-run-2-all-black.jsRead 14 October 2026US store list price 349.00 USD for the 4 GB editions and 399.00 USD for the 64 GB editions. US sales tax is not included. The base value is the 4 GB edition.5Reviewtomsguide.com/wellness/smartwatches/i-tested-the-suunto-run-2-for-two-weeks-and-its-an-accurate-and-attractive-sports-watch-with-mapsRead 14 October 2026Launch prices $349 (4 GB) and $399 (64 GB), as on the Suunto US store.

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.

€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.

Not available

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

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.

US2Maker product pageus.suunto.com/products/suunto-run-2-all-black.jsRead 14 October 2026US store. Regional stores show other currencies.

ColoursiThe maker's own colour names

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

All Black, Feather Gold, Aloe Green1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026Three colours: All Black, Feather Gold and Aloe Green. Each comes in a 4 GB and a 64 GB edition.

Segment

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

Sport1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026Suunto calls it a lightweight running watch for marathon training and road running.

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

5 of 8 differ

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

Not available

46.5mm1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026Suunto publishes no marketed case size. 46.5 mm is the stated width and height. The Watch diameter label and the product images show a round case.

Case shape

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

Round1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026The size is labelled Watch diameter and the maker images show a round case.

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

Fibre-reinforced polymer1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026Specification data: case material glass fibre reinforced polyamide, bezel material stainless steel, lens Gorilla glass, strap silicone. The housing is not classed as stainless steel.

Case material (as published)

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

Glass fibre reinforced polyamide case with stainless steel bezel1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026

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.

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.

Height46.5Width46.5Thickness11.66mm(1.8 × 1.8 × 0.5 in)1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026Measurement data: width 46.5, height 46.5 and depth 11.66 mm. The What's New table on the same page rounds this to 46 x 46 x 11.7 mm. The exact values are stored. Sensor protrusion exclusions are not stated.

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

Not available

35g(1.2 oz)1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026Page text: 35 g watch body.

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

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.

53g(1.9 oz)1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026Page text: with the official Suunto silicone strap the total weight is 53 g. Reviews give about 53 to 54 g.

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 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.

5ATM1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026Specifications > General: water resistance 50 m.4Maker spec sheet (PDF)ns.suunto.com/Manuals/Suunto_Run_2/Safty_and_Regulatory/Run%202%20Safty_and_Regulatory.pdfRead 14 October 2026Operating conditions: water resistance 50 m / 164 ft / 5 bar.

Water resistance standard

Not available

Not available

Dust and water rating

Not available

IPX84Maker spec sheet (PDF)ns.suunto.com/Manuals/Suunto_Run_2/Safty_and_Regulatory/Run%202%20Safty_and_Regulatory.pdfRead 14 October 2026Operating conditions: IP-class IPX8.

Dive rating

Not available

Not available

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

Not available

Not available

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

Not available

Not available

MIL-STD-810 tests

Not available

Not available

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

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

Min-20Max55°C1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026Specifications > Physical specifications: operating temperature -20 to +55 C. Storage uses the same range. The recommended charging range is separate.4Maker spec sheet (PDF)ns.suunto.com/Manuals/Suunto_Run_2/Safty_and_Regulatory/Run%202%20Safty_and_Regulatory.pdfRead 14 October 2026The English temperature bullets are blank in the PDF text. The BG, CS and DA sections give operating and storage temperature -20 to +55 C, which matches the product page.

Display

6 of 14 differ

Display type

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

OLED1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026

Display type (as published)

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

LTPS AMOLED1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026Page: LTPS AMOLED panel type. No LTPO or variable refresh rate is claimed.

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

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

1.32in(3.4 cm)1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026Specifications > General: display size 1.32 inch.

Resolution

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

466 × 466px1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026

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

Not available

Not available

Display area

Not available

Not available

Touchscreen

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

Yes1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026The product page and the guide describe a touch screen.

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.

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.

2,000nits1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026Maker claim of a 2,000 nit display. Window size, ambient light and duration are not stated, so it is a claim and not a measurement.

Minimum brightness

Not available

Not available

Always-on display

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

Yes3Owner's manualns.suunto.com/Manuals/Suunto_Run_2/Userguides/Suunto_Run_2_UserGuide_EN.PDFRead 14 October 2026Display settings: Always-on display can be toggled on or off. It reduces battery life by about 30%.

Display cover

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

Gorilla Glass1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026

Display cover (as published)

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

Gorilla Glass1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026Page: Gorilla Glass lens.

Platform

4 of 15 differ

Platform

Not available

Proprietary8Spec databasegadgetsandwearables.com/technical-specs/suunto-run-2Read 14 October 2026Operating system: Proprietary.

OS at launch

Not available

Not available

Software

Not available

Not available

Latest OS

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.

Not available

Works with

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

iOS, Android3Owner's manualns.suunto.com/Manuals/Suunto_Run_2/Userguides/Suunto_Run_2_UserGuide_EN.PDFRead 14 October 2026The guide shows the Suunto app for Android and for iOS.

Phone requirement

Not available

Not available

App store

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.

Not available

Voice assistants

Not available

Not available

Chipset

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.

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

4, 64GB1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026Specifications: offline map storage size 4GB (Standard, maps and music) or 64GB (Premium, maps and music). The 64 GB edition costs $50 more.

Health sensors

2 of 8 differ

Heart rate sensor

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

12-channel optical wrist heart rate sensor1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026A 12-channel sensor behind 2.5D curved glass. 24/7 heart rate tracking is claimed.

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

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.

Not available

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

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

Yes3Owner's manualns.suunto.com/Manuals/Suunto_Run_2/Userguides/Suunto_Run_2_UserGuide_EN.PDFRead 14 October 2026Blood oxygen widget measures on demand and during sleep. It is not a medical device.

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

Not available

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 pagecoros.com/pace4/specsRead 8 October 2026

Yes3Owner's manualns.suunto.com/Manuals/Suunto_Run_2/Userguides/Suunto_Run_2_UserGuide_EN.PDFRead 14 October 2026Sleep tracking uses accelerometer data.

Accelerometer range

Not available

Not available

Gyroscope

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

Yes3Owner's manualns.suunto.com/Manuals/Suunto_Run_2/Userguides/Suunto_Run_2_UserGuide_EN.PDFRead 14 October 2026Compass: Suunto Run 2 has a gyro-assisted compass. Gadgets & Wearables lists no gyroscope, but the maker text is followed.

Barometric altimeter

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

Yes3Owner's manualns.suunto.com/Manuals/Suunto_Run_2/Userguides/Suunto_Run_2_UserGuide_EN.PDFRead 14 October 2026Alti & Baro: constant absolute air pressure measurement with the built-in pressure sensor.

Compass

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

Yes3Owner's manualns.suunto.com/Manuals/Suunto_Run_2/Userguides/Suunto_Run_2_UserGuide_EN.PDFRead 14 October 2026Compass widget: a tilt-compensated gyro-assisted compass.

Ambient light sensor

Not available

Yes8Spec databasegadgetsandwearables.com/technical-specs/suunto-run-2Read 14 October 2026Ambient light sensor: Yes. The maker lists automatic backlight brightness.

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.

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.

Continuous heart rate, Heart rate alerts, Heart rate variability, Sleep tracking, Blood oxygen app1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 202624/7 heart rate tracking is claimed on the product page. The guide describes a high heart rate alert, HRV tracking during sleep, sleep tracking and a blood oxygen widget. Sleep tracking is based on movement only, so sleep stages are not stored. These are recreational features and not medical functions.3Owner's manualns.suunto.com/Manuals/Suunto_Run_2/Userguides/Suunto_Run_2_UserGuide_EN.PDFRead 14 October 2026Heart rate widget: high heart rate alert. Sleep: optional HRV and blood oxygen tracking during sleep. Sleep is movement-based.

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.

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.

VO2 max, Training load, Recovery advice, Pool swim, Open water swim, Route navigation3Owner's manualns.suunto.com/Manuals/Suunto_Run_2/Userguides/Suunto_Run_2_UserGuide_EN.PDFRead 14 October 2026Progress widget: training load, VO2max fitness level estimate and fitness age. Recovery widget: a recovery percentage with rest advice. Swimming: pool and open-water modes. Routes: route navigation from the Suunto app. Find back is direct guidance to the start, not a retraced track, so trackback is not stored. No turn-by-turn directions are described. Power zones need a power source, so running power is not stored.

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, 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.

Heart rate strap, Foot pod1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026Specifications list Bluetooth heart rate belts and Suunto Foot POD support. The guide's pairing list names heart rate and foot sensors only.3Owner's manualns.suunto.com/Manuals/Suunto_Run_2/Userguides/Suunto_Run_2_UserGuide_EN.PDFRead 14 October 2026Pair devices: heart rate sensors and foot pods.

Safety

2 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.

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.

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.

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.

Not available

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

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.

No3Owner's manualns.suunto.com/Manuals/Suunto_Run_2/Userguides/Suunto_Run_2_UserGuide_EN.PDFRead 14 October 2026The Flashlight app lights the display (white, flicker or red). It is not a dedicated hardware LED.

Positioning

1 of 3 differ

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

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.

GPS, GLONASS, Galileo, BeiDou, QZSS, L1 + L5 GNSS1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026Specifications list GPS, GLONASS, Galileo, QZSS and BeiDou. The page says dual-band L1 + L5 positioning across all five systems.

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

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

Yes1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026Specifications: GNSS frequency support Dual band (L1+L5).

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

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.

Yes1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026Offline maps on watch with free worldwide maps and no subscription.

Connectivity

6 of 15 differ

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

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

Yes4Maker spec sheet (PDF)ns.suunto.com/Manuals/Suunto_Run_2/Safty_and_Regulatory/Run%202%20Safty_and_Regulatory.pdfRead 14 October 2026Radio list: Bluetooth LE at 2400-2483.5 MHz. No Bluetooth version is published.

Bluetooth version

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.

Not available

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

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

Yes4Maker spec sheet (PDF)ns.suunto.com/Manuals/Suunto_Run_2/Safty_and_Regulatory/Run%202%20Safty_and_Regulatory.pdfRead 14 October 2026Radio list: 2.4G Wi-Fi and 5G Wi-Fi.

Wi-Fi standard

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 64Maker spec sheet (PDF)ns.suunto.com/Manuals/Suunto_Run_2/Safty_and_Regulatory/Run%202%20Safty_and_Regulatory.pdfRead 14 October 2026Radio list names 802.11b/g/n/ax for the 2.4 GHz and 5 GHz Wi-Fi. 802.11ax maps to Wi-Fi 6.

Wi-Fi bands

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.

2.4 GHz, 5 GHz4Maker spec sheet (PDF)ns.suunto.com/Manuals/Suunto_Run_2/Safty_and_Regulatory/Run%202%20Safty_and_Regulatory.pdfRead 14 October 2026Radio list: 2400-2483.5 MHz, 5150-5250 MHz and 5725-5850 MHz.

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

Not available

No4Maker spec sheet (PDF)ns.suunto.com/Manuals/Suunto_Run_2/Safty_and_Regulatory/Run%202%20Safty_and_Regulatory.pdfRead 14 October 2026The complete radio list has no cellular radio.

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

No4Maker spec sheet (PDF)ns.suunto.com/Manuals/Suunto_Run_2/Safty_and_Regulatory/Run%202%20Safty_and_Regulatory.pdfRead 14 October 2026The complete radio list has Bluetooth LE, 2.4 GHz Wi-Fi, 5 GHz Wi-Fi and a GNSS receiver only, with no 13.56 MHz NFC radio. Reviews also say there are no NFC payments.

Contactless payments

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.

No5Reviewtomsguide.com/wellness/smartwatches/i-tested-the-suunto-run-2-for-two-weeks-and-its-an-accurate-and-attractive-sports-watch-with-mapsRead 14 October 2026There are no NFC payments on the watch.

Payment services

Not available

Not available

Ultra-wideband

Not available

No4Maker spec sheet (PDF)ns.suunto.com/Manuals/Suunto_Run_2/Safty_and_Regulatory/Run%202%20Safty_and_Regulatory.pdfRead 14 October 2026The complete radio list has no ultra-wideband radio. Gadgets & Wearables also lists no UWB.

Satellite

Not available

Not available

ANT+

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+.

Not available

Audio

1 of 4 differ

Speaker

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.

No8Spec databasegadgetsandwearables.com/technical-specs/suunto-run-2Read 14 October 2026Speakers: No. The watch plays tones and alarms through a beeper. This is a single secondary source.

Microphones

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.

08Spec databasegadgetsandwearables.com/technical-specs/suunto-run-2Read 14 October 2026Microphone: No. The maker describes no voice or calling features. This is a single secondary source.

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

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.

None3Owner's manualns.suunto.com/Manuals/Suunto_Run_2/Userguides/Suunto_Run_2_UserGuide_EN.PDFRead 14 October 2026Notifications show incoming calls and texts from the paired phone. No calling features are described.5Reviewtomsguide.com/wellness/smartwatches/i-tested-the-suunto-run-2-for-two-weeks-and-its-an-accurate-and-attractive-sports-watch-with-mapsRead 14 October 2026Smart features mention phone music control, weather and offline music, with no calling.

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

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

Yes1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026Load music onto the watch and play it from the watch.3Owner's manualns.suunto.com/Manuals/Suunto_Run_2/Userguides/Suunto_Run_2_UserGuide_EN.PDFRead 14 October 2026Media player offline mode plays MP3, FLAC, WAV and AAC files stored on the watch through paired Bluetooth headphones.

Controls

2 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.

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.

23Owner's manualns.suunto.com/Manuals/Suunto_Run_2/Userguides/Suunto_Run_2_UserGuide_EN.PDFRead 14 October 2026Touch screen and buttons: a touch screen, a crown (the middle button) and two additional buttons. The crown is excluded from the button count.

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

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

Upper button, Lower button3Owner's manualns.suunto.com/Manuals/Suunto_Run_2/Userguides/Suunto_Run_2_UserGuide_EN.PDFRead 14 October 2026Upper button and Lower button. Tom's Guide calls the crown a digital dial.

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

Rotating3Owner's manualns.suunto.com/Manuals/Suunto_Run_2/Userguides/Suunto_Run_2_UserGuide_EN.PDFRead 14 October 2026Crown/middle button: turn to move in displays and menus, press to select.

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

Not available

Not available

Gestures

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

Raise to wake display3Owner's manualns.suunto.com/Manuals/Suunto_Run_2/Userguides/Suunto_Run_2_UserGuide_EN.PDFRead 14 October 2026Display settings include Raise to wake.

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.

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.

380mAh1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026The What's New table lists 380 mAh against 295 mAh for Suunto Run, and the page says 29% more battery capacity. The safety guide gives a 3.87 V battery, so 380 mAh is about 1.47 Wh.

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.

ACOROS 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.

BSuunto Run 2

Mode	With solar	Hours (h)
Smartwatch	No	312
Time only	No	360
GPS, dual-band	No	24
GPS, dual-band, always-on display	No	18
GPS, all systems	No	30
GPS, power saving	No	40

Source1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026Specifications > Battery life: all-systems GNSS with multi-band up to 24 h (18 h with always-on display), all-systems single-band up to 30 h, power saving GNSS modes up to 40 h, smartwatch mode up to 13 days, standby time mode only up to 15 days. Days are converted to hours exactly. The headline says 10 days of daily training use, a separate claim whose conditions are not stated, so it is not stored. Tom's Guide lists 24 h as multi-band always-on, which conflicts with the maker's 18 h always-on figure, so the maker table is followed. The three battery modes are Performance (default), Endurance and Power saving. They map to the 24 h, 30 h and 40 h rows as in the maker's all-modes line.

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.

456h=CalculatedFrom Claimed battery life

312h=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.

144h=CalculatedFrom Claimed battery life

Not available

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

Not available

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 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.

Magnetic puck3Owner's manualns.suunto.com/Manuals/Suunto_Run_2/Userguides/Suunto_Run_2_UserGuide_EN.PDFRead 14 October 2026Safety: the USB cable device connector includes a strong magnet. Alastair Running and Watchnation call it a magnetic puck. The pin layout is not described.

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

Not available

USB-C cable with a magnetic device connector. The safety guide lists charging at USB 5 Vdc, 0.5 A and says to use only the supplied cable. The product page recommends charging at 0 to 35 C, while the non-English sections of the safety guide say 0 to 45 C.4Maker spec sheet (PDF)ns.suunto.com/Manuals/Suunto_Run_2/Safty_and_Regulatory/Run%202%20Safty_and_Regulatory.pdfRead 14 October 2026Battery section: rechargeable lithium-ion, 3.87 Vdc, charging USB 5 Vdc, 0.5 A.

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.

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.

Not available

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

4 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.

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

22mm1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026Specifications > General: 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 pagecoros.com/pace4/specsRead 8 October 2026

Yes9Reviewalastairrunning.com/suunto-run-2-reviewRead 14 October 2026The review describes a 22 mm quick-release silicone strap. The maker says only that the strap can be replaced with other compatible options. Watchnation also says quick-release.

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

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

22 mm straps1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026Strap width 22 mm. The page says the strap can be replaced with other compatible options. No attachment system name is published.

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

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

Silicone1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026Strap material silicone.

Strap

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

Suunto 22mm Athletic 6 Silicone Strap (S/M)1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026In the Box: Suunto 22mm Athletic 6 Silicone Strap for Sizes (S/M). The strap colour follows the watch colour.

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

ACOROS 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.

BSuunto Run 2

Size	Wrist (min) (mm)	Wrist (max) (mm)
S/M	130	200

Source1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026Specifications: wrist sizes 130-200 mm. The box strap is the S/M size. The range is the maker's wrist size for the watch and is assigned to the S/M strap.

Regulatory

2 of 3 differ

FCC ID

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.

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

1.295W/kg4Maker spec sheet (PDF)ns.suunto.com/Manuals/Suunto_Run_2/Safty_and_Regulatory/Run%202%20Safty_and_Regulatory.pdfRead 14 October 2026FCC SAR section: highest reported SAR 1.295 W/kg (wrist), with an accessory that contains no metal at a minimum of 0 mm. This is the US regime.

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

1.498W/kg4Maker spec sheet (PDF)ns.suunto.com/Manuals/Suunto_Run_2/Safty_and_Regulatory/Run%202%20Safty_and_Regulatory.pdfRead 14 October 2026CE SAR section: minimum distance 0 mm from the wrist and highest reported SAR 1.498 W/kg (wrist). This is the EU regime.

Other certifications

Not available

Not available

In the box

1 of 2 differ

In the box

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.

Suunto Run 2 Watch, Suunto 22mm Athletic 6 Silicone Strap for Sizes (S/M), Quick Guide, USB-C Charging Cable, Product Safety & Regulatory Information International Limited Warranty1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026In the Box list, verbatim.10Retailer pagewatchnation.com/blogs/news/suunto-run-2-what-new-what-s-in-the-box-and-everything-you-need-to-knowRead 14 October 2026Retailer blog on the box: watch, 22 mm silicone strap in S/M size, USB-C cable with magnetic charging puck, Quick Guide and regulatory documents. Matches the maker's list.

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

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.

No1Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026The box has a USB-C charging cable and no mains or USB power adapter.

Links

Not compared

Product page

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

www.suunto.com/en-us/Products/sports-watches/suunto-run-21Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026

Spec sheet

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

www.suunto.com/en-us/Products/sports-watches/suunto-run-21Maker product pagesuunto.com/en-us/Products/sports-watches/suunto-run-2Read 14 October 2026

Manual

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.

ns.suunto.com/Manuals/Suunto_Run_2/Userguides/Suunto_Run_2_UserGuide_EN.PDF3Owner's manualns.suunto.com/Manuals/Suunto_Run_2/Userguides/Suunto_Run_2_UserGuide_EN.PDFRead 14 October 2026Suunto Run 2 User Guide PDF, dated 2026-07-29. It matches the online guide pages under suunto.com/Support. Its CE section prints OW234, which is not used.

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

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Warranty

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

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.

2years4Maker spec sheet (PDF)ns.suunto.com/Manuals/Suunto_Run_2/Safty_and_Regulatory/Run%202%20Safty_and_Regulatory.pdfRead 14 October 2026International Limited Warranty: two years for watches from the date of original retail purchase. Accessories such as straps, chargers and cables have one year. Mandatory national consumer rights are separate.

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