GPS Running Watches / Polar Grit X2 (45mm) vs Suunto Race 2 (stainless steel)
Polar Grit X2 (45mm) vs Suunto Race 2 (stainless steel)
Suunto Race 2 (stainless steel)
55 hours of multiband GPS and free world maps for $499 — but not one song on board.
Wins overall by 1.1 points
Quick Verdict
The Suunto Race 2 (stainless steel) is the stronger all-round pick, ahead by 1.1 points. 55 hours of multiband GPS and free world maps for $499 — but not one song on board.
The Polar Grit X2 (45mm) and Suunto Race 2 (stainless steel) are both current-generation GPS Running Watch models, and the Suunto Race 2 (stainless steel) is $301 cheaper than the Polar Grit X2 (45mm) ($499 vs $799.99). On Value, the Suunto Race 2 (stainless steel) leads (8.4 vs 4.8/10) — what the watch delivers per dollar against everything else in the comparison at the moment of purchase.. On Battery Honesty, the Suunto Race 2 (stainless steel) leads (8.6 vs 6.0/10) — how much of the headline battery claim survives the mode you would actually train in: all-systems plus multiband, always-on display, music playing. The number on the box is almost always the slowest, least accurate mode.. On Heart Rate, the Suunto Race 2 (stainless steel) leads (7.6 vs 5.0/10) — optical wrist accuracy during intervals and burst efforts, and whether the watch pairs with ANT+ and/or Bluetooth chest straps as a fix.. Overall, the Suunto Race 2 (stainless steel) scores 8.2/10 across our 8 scoring categories versus 7.1/10 for the Polar Grit X2 (45mm). Below, we break down the full spec sheet, category-by-category scores, and exactly who should buy which one.
Side-by-Side Comparison
| Spec | Polar Grit X2 (45mm) | Suunto Race 2 (stainless steel) |
|---|---|---|
| Price | $799.99 | $499.00 |
| Release Year | 2025 | 2025 |
| Display | 1.28-in 416x416 AMOLED with sapphire lens, optional always-on | 1.5-in 466x466 AMOLED touchscreen with sapphire lens, optional always-on |
| Smartwatch Battery ( days) | 7 | 18 days with wrist HR on, 30 days in standby (Suunto). DC Rainmaker's review quotes up to 16 days — sources conflict. |
| Always-On Display Cost | Polar does not publish a separate always-on smartwatch figure in the sources reviewed; the headline 7 days is already the shortest smartwatch runtime in this comparison | Dual-band training time falls from 55 h to 50 h with the always-on display, per Wareable's testing notes — a smaller penalty than most AMOLED rivals |
| Battery, Single-Band GPS ( h) | 90✓ | 65 |
| Battery, Multiband GPS ( h) | 30 | 55✓ |
| GNSS Bands | Dual-frequency GNSS (GPS, GLONASS, Galileo, BeiDou, QZSS). The 90 h figure is Eco training mode with reduced fixes; 30 h is the full Performance mode with GPS and wrist HR running. | Dual-band L1+L5. Suunto publishes 55 h in the dual-band Performance mode, 65 h single-band and 200 h in the power-saving Tour mode. |
| Onboard Maps | Offline TOPO maps for North America and Europe preloaded, with contour and POI layers; other regions download free. No on-device rerouting, and the compass must be calibrated before navigation. | Free offline topographic maps for most of the world in 32 GB, downloaded over Wi-Fi with no cable and no charge. Maps are split into small regions (France alone is 27 sections) and there is no automatic rerouting — off-course you get compass guidance only. |
| Music Storage | None. The watch controls phone music only — there is no on-device storage and no streaming. | None. No on-device music storage and no streaming; DC Rainmaker notes Suunto appears to be building toward it but it does not exist today. |
| Training Platform & Subscription | Polar Flow app and web are genuinely free with no paid tier. Training Load Pro, Nightly Recharge, Sleep Plus Stages and FitSpark are Polar's own science, not Firstbeat-licensed. | Suunto app is free with no subscription tier. Training analytics are Suunto's own; the watch also carries the Suunto Coach guidance layer at no cost. |
| External Sensor Support | Bluetooth LE only — no ANT+, so ANT+-only power meters and older straps will not pair. A Polar H10 chest strap is the recommended fix for the wrist sensor. | Bluetooth sensors with multiple saved pairings — no ANT+ |
| Data Export | Free .FIT/TCX/GPX export from Polar Flow plus automatic sync to Strava, TrainingPeaks and Komoot | Free .FIT export and automatic sync to Strava, TrainingPeaks, Komoot and 300+ partner services |
| Warranty | 24 months | 24 months |
| Colors | Black | All Black, Coral Orange |
Category Scores
GPS Accuracy
The Suunto Race 2 (stainless steel) is marginally ahead, 8.2 to 8.0. A gap this small rarely decides a purchase on its own, though it counts if trace quality in cities and under tree cover — multiband L1+L5 hardware plus what independent testers measured in the real world. is your priority.
Battery Honesty
The Suunto Race 2 (stainless steel) leads clearly here, 8.6 against 6.0 — a 2.6-point margin on how much of the headline battery claim survives the mode you would actually train in: all-systems plus multiband, always-on display, music playing. The number on the box is almost always the slowest, least accurate mode.. If that is what you are buying for, the Polar Grit X2 (45mm) does not close the gap elsewhere.
Training & Recovery
The Polar Grit X2 (45mm) leads clearly here, 8.2 against 7.4 — a 0.8-point margin on depth of load, readiness and recovery analysis, and how much of it is free rather than gated behind a subscription or an extra chest strap.. If that is what you are buying for, the Suunto Race 2 (stainless steel) does not close the gap elsewhere.
Heart Rate
The Suunto Race 2 (stainless steel) leads clearly here, 7.6 against 5.0 — a 2.6-point margin on optical wrist accuracy during intervals and burst efforts, and whether the watch pairs with ANT+ and/or Bluetooth chest straps as a fix.. If that is what you are buying for, the Polar Grit X2 (45mm) does not close the gap elsewhere.
Display
The Suunto Race 2 (stainless steel) is marginally ahead, 9.2 to 8.8. A gap this small rarely decides a purchase on its own, though it counts if brightness, resolution and daylight readability, weighing AMOLED sharpness against MIP's always-on-for-free behaviour. is your priority.
Build & Comfort
The Polar Grit X2 (45mm) leads clearly here, 8.8 against 8.0 — a 0.8-point margin on case materials, lens (sapphire vs glass), weight on the wrist and durability ratings.. If that is what you are buying for, the Suunto Race 2 (stainless steel) does not close the gap elsewhere.
Value
The Suunto Race 2 (stainless steel) leads clearly here, 8.4 against 4.8 — a 3.6-point margin on what the watch delivers per dollar against everything else in the comparison at the moment of purchase.. If that is what you are buying for, the Polar Grit X2 (45mm) does not close the gap elsewhere.
Best For
Choose the Polar Grit X2 (45mm) if…
- • Build & Comfort matters most to you — the Polar Grit X2 (45mm) scores 8.8/10 here (case materials, lens (sapphire vs glass), weight on the wrist and durability ratings.).
- • Your main use case is hiking-navigation.
Choose the Suunto Race 2 (stainless steel) if…
- • Value matters most to you — the Suunto Race 2 (stainless steel) scores 8.4/10 here (what the watch delivers per dollar against everything else in the comparison at the moment of purchase.).
- • Battery Honesty matters most to you — the Suunto Race 2 (stainless steel) scores 8.6/10 here (how much of the headline battery claim survives the mode you would actually train in: all-systems plus multiband, always-on display, music playing. The number on the box is almost always the slowest, least accurate mode.).
- • Heart Rate matters most to you — the Suunto Race 2 (stainless steel) scores 7.6/10 here (optical wrist accuracy during intervals and burst efforts, and whether the watch pairs with ANT+ and/or Bluetooth chest straps as a fix.).
- • Navigation & Maps matters most to you — the Suunto Race 2 (stainless steel) scores 8.0/10 here (real routable offline topographic maps versus a breadcrumb line, plus how painful it is to get maps onto the watch.).
- • You want to spend less — it's $301 cheaper.
Pros & Cons
Polar Grit X2 (45mm)
Pros
- +Preloaded free offline TOPO maps for North America and Europe, with sapphire and a steel bezel
- +Polar Flow is completely free — no subscription tier exists, unlike Garmin Connect+
- +62 g with strap and MIL-STD-810H tested, one of the most comfortable big outdoor watches here
- +ECG, SpO2 and skin temperature on top of Polar's well-regarded Nightly Recharge recovery model
Cons
- −DC Rainmaker's optical HR testing was damning: it 'missed every single interval' on 400 m repeats and recorded 3,100 m for a ~1,900 m open-water swim. Budget for an H10 chest strap.
- −7 days of smartwatch battery is the shortest in this comparison, and 30 h in full Performance mode is beaten by a $249 Coros
- −No music storage at all on a $799.99 watch
- −Bluetooth only — no ANT+ support
- −Navigation demands a compass calibration first, and turn-by-turn has to be switched on manually after picking a route
Suunto Race 2 (stainless steel)
Pros
- +55 h in the accurate dual-band mode — more than double what a Forerunner 570 manages at $50 more
- +Free worldwide offline maps in 32 GB, downloadable over Wi-Fi with no cable and no fee
- +1.5-in 466x466 AMOLED behind sapphire crystal at $499
- +DC Rainmaker rates the new optical HR sensor a 'massive improvement' and within the acceptable range for training
Cons
- −No music storage whatsoever — no MP3, no Spotify, nothing
- −Suunto's 18-day smartwatch figure and DC Rainmaker's 16-day figure do not agree
- −No automatic rerouting when you leave a course, and trails vanish from the map above roughly the 0.2-mile zoom level
- −Bluetooth only — no ANT+ sensors
- −DC Rainmaker measured a small GPS accuracy regression versus the original Race and Vertical
Shop by Need
FAQs
Is the Polar Grit X2 (45mm) or Suunto Race 2 (stainless steel) better overall?+
Based on our 8-category scoring, the Suunto Race 2 (stainless steel) comes out ahead overall. See the full breakdown in the scores section above — the right pick still depends on which categories matter most for your use case.
Which is better for Value, the Polar Grit X2 (45mm) or the Suunto Race 2 (stainless steel)?+
The Suunto Race 2 (stainless steel) scores higher on Value (8.4/10 vs 4.8/10) — what the watch delivers per dollar against everything else in the comparison at the moment of purchase..
Which is better for Battery Honesty, the Polar Grit X2 (45mm) or the Suunto Race 2 (stainless steel)?+
The Suunto Race 2 (stainless steel) scores higher on Battery Honesty (8.6/10 vs 6.0/10) — how much of the headline battery claim survives the mode you would actually train in: all-systems plus multiband, always-on display, music playing. The number on the box is almost always the slowest, least accurate mode..
Which is better for Heart Rate, the Polar Grit X2 (45mm) or the Suunto Race 2 (stainless steel)?+
The Suunto Race 2 (stainless steel) scores higher on Heart Rate (7.6/10 vs 5.0/10) — optical wrist accuracy during intervals and burst efforts, and whether the watch pairs with ANT+ and/or Bluetooth chest straps as a fix..
Which is better for Navigation & Maps, the Polar Grit X2 (45mm) or the Suunto Race 2 (stainless steel)?+
The Suunto Race 2 (stainless steel) scores higher on Navigation & Maps (8.0/10 vs 7.0/10) — real routable offline topographic maps versus a breadcrumb line, plus how painful it is to get maps onto the watch..
Is the Polar Grit X2 (45mm) worth the price difference over the Suunto Race 2 (stainless steel)?+
The Suunto Race 2 (stainless steel) is the cheaper option at $499 versus $799.99. Whether the pricier model is "worth it" depends on how much you value its lead in Value.
Which is better suited to my use case?+
The Polar Grit X2 (45mm) is the better fit if you mainly care about hiking-navigation. The Suunto Race 2 (stainless steel) is the better fit for triathlon.
What's the warranty on the Polar Grit X2 (45mm) vs the Suunto Race 2 (stainless steel)?+
The Polar Grit X2 (45mm) ships with a 24-month warranty; the Suunto Race 2 (stainless steel) ships with a 24-month warranty. Always confirm current terms on the manufacturer's site before buying.
Should I wait for the next model instead of buying either of these?+
If either model is more than two years old, a successor may be close — check the "Latest Model" link on each product page. Otherwise, both are current, well-supported options and there's no strong reason to wait.
Cheaper Option
COROS VERTIX 2S (50mm) — $699.00
Premium Option
Garmin Forerunner 570 (47mm) — $549.99
Specifications and prices for both products last verified . Scores are calculated from published specifications — see how we compare products.