Smartwatches / Compare
Polar Street X vs Suunto Race 3S
Product A: Polar
79 of 150 known
Product B: Suunto
84 of 150 known
65 of 141 fields differ
- 39 different values
- 26 known for one only
- 24 the same
- 52 missing for both
Biggest differences
Each bar uses the scale of all 101 smartwatches.
- Battery lifeA: 240hB: 288hSuunto is 48 h higher.
Size, drawn to scale
Front and side.
- APolar: 45 × 45 mm
- BSuunto: 46 × 46 mm
Weight
0 to 80 g
Weight (case only)
A28g
B38g
Weight with strap
A48g
B56g
All 150 fields
Every value links to where we found it.


General
6 of 10 differ
Series
Model numbers
6J, 900116713, 900116714, 9001167151Maker product pagepolar.com/en/street-xRead 15 October 2026Store feed SKUs 900116713 (Night Black), 900116714 (Forest Green) and 900116715 (Snow White). The manual and the regulatory sheet give the model 6J.3Owner's manualsupport.polar.com/e_manuals/street-x/polar-street-x-user-manual-english/technical-specifications.htmRead 15 October 2026Model 6J.
GTIN / EAN
725882070766, 725882070773, 7258820707801Maker product pagepolar.com/en/street-xRead 15 October 2026Store feed gtin12: 725882070766 Night Black, 725882070773 Forest Green and 725882070780 Snow White.
Not available
Announced
Status
Predecessor
Not available
Not available
Successor
Not available
Not available
Launch price (US)
$5991Maker product pageus.suunto.com/products/suunto-race-3s-titanium-blackRead 20 October 2026The US page lists $599 with pre-order shipping from 29 October 2026. Trade press reports $599 as the launch price.9Reviewdcrainmaker.com/2026/10/suunto-race-3s-in-depth-review-upgrade.htmlRead 20 October 2026DC Rainmaker in-depth review: priced at $599 USD and 499 EUR. The review's battery figures are an extrapolation from one 98-minute run and are not stored as a measurement.
Launch price (EU)
Markets
Colours
Night Black, Snow White, Forest Green1Maker product pagepolar.com/en/street-xRead 15 October 2026Colour options: Night Black, Snow White, Forest Green.
Titanium Black, Titanium Feather, Titanium Orchid1Maker product pageus.suunto.com/products/suunto-race-3s-titanium-blackRead 20 October 20265Press releasesuunto.com/de-at/Nachrichten/suunto-launches-race-3s-next-generation-performance-watchRead 20 October 2026Three colours: Orchid, Feather and Black.
Segment
OS updates promised
Not available
Not available
Security updates until
Not available
Not available
Case
7 of 8 differ
Case size
Case shape
Case material
Fibre-reinforced polymer1Maker product pagepolar.com/en/street-xRead 15 October 2026Tech specs: case material and bezel material Bio-based plastic. The launch release says reinforced polymer body. The manual lists PA11+8GF (glass-fibre reinforced polyamide 11) among the device materials. Stored as fibre-reinforced polymer.3Owner's manualsupport.polar.com/e_manuals/street-x/polar-street-x-user-manual-english/technical-specifications.htmRead 15 October 2026Device materials list PA11+8GF, a glass-fibre reinforced polyamide.
Case material (as published)
Bio-based plastic1Maker product pagepolar.com/en/street-xRead 15 October 2026Tech specs: Case material Bio-based plastic.
Glass fibre reinforced polyamide case with titanium bezel and titanium case-back1Maker product pageus.suunto.com/products/suunto-race-3s-titanium-blackRead 20 October 2026
Back
Not available
Case dimensions
Height45Width45Thickness13.8mm(1.8 × 1.8 × 0.5 in)1Maker product pagepolar.com/en/street-xRead 15 October 2026Tech specs: width 45 mm, height 45 mm, thickness 13.8 mm.
Height46Width46Thickness11.4mm(1.8 × 1.8 × 0.4 in)1Maker product pageus.suunto.com/products/suunto-race-3s-titanium-blackRead 20 October 2026Measurements: 46 x 46 x 11.4 mm. Whether the thickness includes the heart rate sensor is not stated.
Weight (case only)
Weight with strap
Durability
3 of 8 differ
Water resistance
5ATM1Maker product pagepolar.com/en/street-xRead 15 October 2026Tech specs: water resistance WR50. The manual says 50 m, suitable for swimming.3Owner's manualsupport.polar.com/e_manuals/street-x/polar-street-x-user-manual-english/technical-specifications.htmRead 15 October 2026Water resistance 50 m (suitable for swimming).
Water resistance standard
Not available
Dust and water rating
Not available
Not available
Dive rating
Not available
Not available
Max dive depth
Not available
Not available
MIL-STD-810
Not available
MIL-STD-810 tests
Not available
Not available
Operating temperature
Display
7 of 14 differ
Display type
Display type (as published)
Screen size
Resolution
Pixel density
Not available
Not available
Display area
Not available
Not available
Touchscreen
Max refresh rate
Not available
Min refresh rate
Not available
Peak brightness
Not available
Minimum brightness
Not available
Not available
Always-on display
Yes1Maker product pagepolar.com/en/street-xRead 15 October 2026Tech specs: always on display Yes. The battery support page says it is off by default.14Maker product pagesupport.polar.com/en/what-is-the-battery-life-of-street-xRead 15 October 2026Always on display is off by default in Street X.
Yes1Maker product pageus.suunto.com/products/suunto-race-3s-titanium-blackRead 20 October 2026Battery table gives separate figures with AOD. The user guide has an Always-on display setting.4Owner's manualcdn.shopify.com/s/files/1/0863/5275/7023/files/Suunto_Race_3S-UG-EN.pdfRead 20 October 2026Section 3.2: Always-on display can be toggled on or off.
Display cover
Display cover (as published)
Corning Gorilla Glass 3 (AF + DLC coating)1Maker product pagepolar.com/en/street-xRead 15 October 2026Manual tech spec: Corning Gorilla Glass 3 (AF + DLC coating).3Owner's manualsupport.polar.com/e_manuals/street-x/polar-street-x-user-manual-english/technical-specifications.htmRead 15 October 2026Watch materials: Corning Gorilla Glass 3 (AF + DLC coating), PA11+8GF, aluminum, stainless steel, PMMA. Wristband: silicone with an aluminum buckle.
Platform
4 of 15 differ
Platform
OS at launch
Not available
Not available
Software
Not available
Not available
Latest OS
Not available
Not available
Works with
Phone requirement
iOS 17 or later, or Android 8 or later with Bluetooth 4.0 capability, running the Polar Flow app15Maker product pagesupport.polar.com/ie-en/polar-flow-app-and-compatible-devicesRead 15 October 2026Street X: iOS mobile devices with iOS 17 or later. Android mobile devices with Bluetooth 4.0 capability and Android 8 or later.
Suunto app on iOS 17 or later, or Android 8 or later1Maker product pageus.suunto.com/products/suunto-race-3s-titanium-blackRead 20 October 2026FAQ, connecting to the Suunto app: iOS 17 or later, or Android 8 or later.
App store
Not available
Not available
Voice assistants
Not available
Not available
Chipset
Not available
Ambiq Apollo 5101Maker product pageus.suunto.com/products/suunto-race-3s-titanium-blackRead 20 October 2026Performance section: new-generation Apollo 510 chip. The maker does not name Ambiq. Ambiq is named by The5KRunner and DC Rainmaker.5Press releasesuunto.com/de-at/Nachrichten/suunto-launches-race-3s-next-generation-performance-watchRead 20 October 2026German release names the new-generation Apollo 510 processor.
Process
Not available
Not available
CPU cores
Not available
Not available
CPU configuration
APolar Street X
| Max clock (GHz) |
|---|
| 0.275 |
BSuunto Race 3S
Not availableMax CPU clock
0.275GHz
Not available
GPU
Not available
Not available
Low-power coprocessor
Not available
Not available
Memory
1 of 2 differ
RAM
Not available
Not available
Storage
Health sensors
3 of 8 differ
Heart rate sensor
Polar Precision Prime optical heart rate sensor (OHR GEN 3.5)1Maker product pagepolar.com/en/street-xRead 15 October 2026Tech specs: Precision Prime, OHR GEN 3.5.3Owner's manualsupport.polar.com/e_manuals/street-x/polar-street-x-user-manual-english/technical-specifications.htmRead 15 October 2026Sensors: Precision Prime, Skin Temp GEN 1, OHR GEN 3.5.
Optical wrist heart rate sensor with six LEDs and four photodetectors1Maker product pageus.suunto.com/products/suunto-race-3s-titanium-blackRead 20 October 2026Performance section names an upgraded wrist sensor behind a 2.5D curved lens. The press release names six LEDs and four photodetectors.
ECG capability
Blood oxygen sensing
Skin temperature sensing
Blood pressure feature
Not available
Not available
Body composition sensor
Not available
Not available
Skin conductance (EDA)
Not available
Not available
Medical clearances
Not available
Not available
Motion and environment sensors
2 of 9 differ
Accelerometer
Accelerometer range
Not available
Not available
Gyroscope
Barometric altimeter
Compass
Ambient light sensor
Depth gauge
Not available
Depth gauge range
Not available
Water temperature sensor
Not available
Not available
Health and fitness
4 of 5 differ
Health features
Continuous heart rate, Heart rate variability, Sleep tracking, Sleep stages1Maker product pagepolar.com/en/street-xRead 15 October 2026Features: continuous heart rate, nightly sleep stages (Sleep Plus Stages), Nightly Recharge, SleepWise. HRV is listed under heart rate. The Daily Readiness card and SleepWise give an alertness forecast, not a readiness score, so readiness_score is not stored. No stress score is listed. Not a medical device.4Owner's manualsupport.polar.com/e_manuals/street-x/polar-street-x-user-manual-english/introduction.htmRead 15 October 2026Introduction: Sleep Plus Stages, Nightly Recharge, SleepWise, continuous heart rate.
Continuous heart rate, Blood oxygen app, Heart rate variability, Sleep tracking, Sleep stages, Stress tracking1Maker product pageus.suunto.com/products/suunto-race-3s-titanium-blackRead 20 October 2026EU spec table and FAQ: heart rate during daily activities, daily minimum heart rate, sleep with deep, light and REM, HRV from sleep and HRV measurement, stress and recovery status, SpO2. Daily resource level is not stored as a readiness score.
Fitness features
VO2 max, Training load, Recovery advice, Running power, Pool swim, Open water swim, Interval workouts, Route navigation, Turn-by-turn navigation, Trackback, Climb detection1Maker product pagepolar.com/en/street-xRead 15 October 2026Features and cards: Running Performance Test (VO2max), Training Load Pro, Recovery Pro, wrist-based running power, swimming metrics, interval timers and phased training targets, route guidance, turn-by-turn route guidance, Track Back, Back to Start. Hill Splitter detects uphills and downhills automatically (manual). The manual has separate pool and open water swimming sections.4Owner's manualsupport.polar.com/e_manuals/street-x/polar-street-x-user-manual-english/introduction.htmRead 15 October 2026Introduction: Route Guidance, Komoot routes, Track back, Back to start, Running Performance Test with VO2max, Walking test, Training Load Pro, Recovery Pro, running power, swimming metrics with distance and strokes also in open water, Hill Splitter.9Owner's manualsupport.polar.com/e_manuals/street-x/polar-street-x-user-manual-english/swimming-metrics.htmRead 15 October 2026Separate sections for pool swimming (distance, pace, strokes, SWOLF) and open water swimming (distance, pace, stroke rate for freestyle and route).10Owner's manualsupport.polar.com/e_manuals/street-x/polar-street-x-user-manual-english/hill-splitter.htmRead 15 October 2026Hill Splitter automatically detects all uphills and downhills from GPS speed, distance and barometric altitude. It needs a 1 second GPS recording rate. Stored as climb detection.13Owner's manualsupport.polar.com/e_manuals/street-x/polar-street-x-user-manual-english/track-back-and-back-to-start.htmRead 15 October 2026Track back guides you back to the start via the same route you came. Back to start shows the direction by beeline.
VO2 max, Training load, Recovery advice, Running power, Running dynamics, Pool swim, Open water swim, Interval workouts, Route navigation, Turn-by-turn navigation, Climb detection1Maker product pageus.suunto.com/products/suunto-race-3s-titanium-blackRead 20 October 2026Spec tables and FAQ: VO2max, training load, recovery time, wrist-based running power, running dynamics (cadence, ground contact time, vertical oscillation), pool and open-water swimming, structured intervals, route navigation, Climb Guidance. Race Planner is announced for a later update and is not stored. Turn-by-turn is in the user guide.4Owner's manualcdn.shopify.com/s/files/1/0863/5275/7023/files/Suunto_Race_3S-UG-EN.pdfRead 20 October 2026Section 5.4, printed page 41: routes made in the Suunto app can carry turn-by-turn instructions with a sound alert. Section 4.2.1, page 26: Find back is a direct guide to the start and is not stored as trackback. Section 5.6, page 45: Climb guidance works while navigating a route.
Sport profiles
Not available
Not available
Dive modes
Not available
External sensors
Heart rate strap, Power meter, Speed and cadence8Owner's manualsupport.polar.com/e_manuals/street-x/polar-street-x-user-manual-english/compatible-sensors.htmRead 15 October 2026Compatible Bluetooth sensors: Polar Verity Sense, OH1, H10 and H9 heart rate sensors, Polar speed sensor and cadence sensor, and third-party power sensors.
Heart rate strap, Speed and cadence, Power meter, Foot pod1Maker product pageus.suunto.com/products/suunto-race-3s-titanium-blackRead 20 October 2026FAQ: standard Bluetooth LE accessories including chest heart rate straps, speed and cadence sensors, power meters, Stryd and running dynamics pods. The EU table lists Bluetooth foot pods.
Safety
1 of 6 differ
Fall detection
Not available
Not available
Car crash detection
Not available
Not available
Emergency SOS
Not available
Not available
Emergency siren
Not available
Not available
Live location sharing
Not available
Not available
Dedicated LED flashlight
Yes1Maker product pagepolar.com/en/street-xRead 15 October 2026Tech specs: front LED light Yes. Built-in LED flashlight with red light mode.11Owner's manualsupport.polar.com/e_manuals/street-x/polar-street-x-user-manual-english/flashlight.htmRead 15 October 2026Integrated LED flashlight with adjustable white light and a red light mode.
Positioning
3 of 3 differ
Positioning
GPS, Galileo, BeiDou, QZSS1Maker product pagepolar.com/en/street-xRead 15 October 2026Tech specs, Geo location: GPS, Galileo, BeiDou and QZSS Yes. GLONASS is not listed.18Maker product pagepolar.com/en/guide/polar-street-x-vs-polar-pacer-proRead 15 October 2026Comparison table: GPS constellations GPS, Galileo, BeiDou, QZSS for Street X. GLONASS is not named.
Dual-band GNSS
Not available
Offline maps
Connectivity
6 of 15 differ
Bluetooth
Bluetooth version
Not available
Not available
Wi-Fi
Wi-Fi standard
Not available
Wi-Fi bands
Not available
Not available
Cellular
Network
Not available
Not available
4G bands
Not available
Not available
5G bands
Not available
Not available
NFC
Not available
Contactless payments
Not available
Payment services
Not available
Not available
Ultra-wideband
Not available
Not available
Satellite
Not available
Audio
1 of 4 differ
Speaker
Not available
Not available
Microphones
Not available
Not available
Calls on the watch
Not available
Not available
Music on the watch
Not available
Controls
4 of 5 differ
Buttons
Named operating buttons
Crown
Rotating bezel
Not available
Not available
Battery and charging
7 of 13 differ
Battery capacity
385mAh1Maker product pagepolar.com/en/street-xRead 15 October 2026Tech specs: battery capacity 385 mAh, Li-Pol.3Owner's manualsupport.polar.com/e_manuals/street-x/polar-street-x-user-manual-english/technical-specifications.htmRead 15 October 2026385 mAh Li-pol rechargeable battery, replaceable at Polar Central Service.
Claimed battery life
APolar Street X
| Mode | With solar | Hours (h) |
|---|---|---|
| Smartwatch | No | 240 |
| GPS | No | 42 |
| Max battery GPS | No | 170 |
Source1Maker product pagepolar.com/en/street-xRead 15 October 2026Tech specs: performance training mode 42 h, eco training mode 170 h, smartwatch mode 10 d. The page text and the launch release say 43 h for the performance mode, which conflicts with the 42 h in the tech specs and the manual. The manual figure is stored.3Owner's manualsupport.polar.com/e_manuals/street-x/polar-street-x-user-manual-english/technical-specifications.htmRead 15 October 2026Performance training mode up to 42 h (optical heart rate on, GPS recording every second). Eco training mode up to 170 h (GPS every 2 minutes, optical heart rate off). Smartwatch mode up to 10 days with continuous heart rate and phone notifications on. 10 days is 240 h.14Maker product pagesupport.polar.com/en/what-is-the-battery-life-of-street-xRead 15 October 2026Performance up to 42 h: optical heart rate on, GPS every 1 second, always-on display off. The scenario text says Dual-Frequency GPS ON, while the product page never claims dual-frequency GNSS and the5krunner says single-frequency, so the row is stored as plain GPS. Eco up to 170 h: optical heart rate off, single-frequency GPS every 2 minutes. Smartwatch up to 10 days with phone notifications on, always-on display off and Do Not Disturb 8 h at night. Stored eco row as the maximum-saving GPS mode, like the Vantage V3 file.
BSuunto Race 3S
| Mode | With solar | Hours (h) |
|---|---|---|
| Smartwatch | No | 288 |
| GPS, dual-band | No | 38 |
| GPS, dual-band, always-on display | No | 32 |
| GPS, all systems | No | 45 |
| GPS, all systems, always-on display | No | 40 |
| GPS, power saving | No | 120 |
Smartwatch mode (claimed)
240h
288h
AOD battery life (up to)
Not available
Not available
GPS mode (claimed)
42h
Not available
Solar charging
Not available
Not available
Charging method
Charging guidance
Charge with the included Polar Charge 2.0 cable, which snaps on magnetically. A USB power adapter is not included. Polar asks for an adapter marked output 5 Vdc that provides at least 500 mA and has an approval mark such as LPS, UL listed or CE. The watch can charge during training. An optional charge limit of 80% is in the battery settings.6Owner's manualsupport.polar.com/e_manuals/street-x/polar-street-x-user-manual-english/batteries.htmRead 15 October 2026Charging the battery: custom cable snaps in magnetically. A USB power adapter is not included. Adapter marked output 5 Vdc, at least 500 mA, LPS, UL listed or CE. Charging during training is possible. Charge limit 80% in Settings > General settings > Battery.
Use only the supplied USB charging cable. Suunto recommends a USB charger with 5 V and 1 A or more. A full charge takes around 1.5 to 2 hours.1Maker product pageus.suunto.com/products/suunto-race-3s-titanium-blackRead 20 October 2026FAQ: a 5 V and 1 A or higher USB charger is recommended and a full charge takes around 1.5 to 2 hours. Charging temperature conflicts between pages (0 to 35 C or 0 to 45 C).
Max charging power (watch)
Not available
Not available
Fast charging
Not available
Quick charge claim
Not available
Charge 0 to 80% (claimed)
Not available
Not available
Full charge time (claimed)
Not available
Not available
Measured
None of 4 known
Peak brightness (measured)
Not available
Not available
Battery life (measured)
Not available
Not available
Battery tests (measured)
Not available
Not available
Full charge time (measured)
Not available
Not available
Strap
3 of 6 differ
Lug width
Quick-release strap
Strap system
Standard 22 mm spring bars with a quick-release knob. No adapters needed7Owner's manualsupport.polar.com/e_manuals/street-x/polar-street-x-user-manual-english/changeable-wristband.htmRead 15 October 2026Standard 22 mm spring bars. Any band that uses 22 mm spring bars fits.
22 mm quick-release straps1Maker product pageus.suunto.com/products/suunto-race-3s-titanium-blackRead 20 October 2026
Strap material
Strap
POLAR Street Wristband, 22mm1Maker product pagepolar.com/en/street-xRead 15 October 2026What's included: POLAR Street Wristband, 22mm.
Strap sizes
APolar Street X
Not availableBSuunto Race 3S
| Size | Wrist (min) (mm) | Wrist (max) (mm) |
|---|---|---|
| Silicone strap | 125 | 175 |
Regulatory
2 of 3 differ
FCC ID
SAR limb (US)
Not available
SAR limb (EU)
Not available
Not available
Other certifications
Not available
In the box
1 of 2 differ
In the box
POLAR Street X, POLAR Street Wristband, 22mm, Polar Charge 2.01Maker product pagepolar.com/en/street-xRead 15 October 2026What's included: POLAR Street X, POLAR Street Wristband 22 mm, Polar Charge 2.0.
Suunto Race 3S watch, Suunto 22 mm silicone strap, Charging cable, Quick guide, Warranty info1Maker product pageus.suunto.com/products/suunto-race-3s-titanium-blackRead 20 October 2026In the box: watch, 22 mm silicone strap, charging cable, quick guide, warranty info.
Power adapter in box
Links
Not compared
Product page
www.polar.com/en/street-x1Maker product pagepolar.com/en/street-xRead 15 October 2026The maker's product page.
www.suunto.com/Products/sports-watches/suunto-race-3s/suunto-race-3s-titanium-black2Maker product pagesuunto.com/Products/sports-watches/suunto-race-3s/suunto-race-3s-titanium-blackRead 20 October 2026Suunto global product page. The spec data is loaded from the page's embedded product data. Its case-material row says titanium, which differs from the US and APAC pages.
Spec sheet
support.polar.com/e_manuals/street-x/polar-street-x-user-manual-english/technical-specifications.htm3Owner's manualsupport.polar.com/e_manuals/street-x/polar-street-x-user-manual-english/technical-specifications.htmRead 15 October 2026Street X user manual technical specification page.
us.suunto.com/products/suunto-race-3s-titanium-black1Maker product pageus.suunto.com/products/suunto-race-3s-titanium-blackRead 20 October 2026Suunto US product page for the Titanium Black SKU SS051645000, read in public HTML. Orchid (SS051647000) and Feather (SS051646000) have their own pages at the same $599 price.
Manual
EPREL registration number
Not available
Not available
Warranty
0 of 1 differ
Manufacturer warranty (source market)
Both are also in the API. Back to all smartwatches.














