COROS PACE 4 vs Suunto Race S
The Suunto Race S lists for about $100 more than the COROS PACE 4. On the headline smartwatch-mode figure, 19 days for the COROS PACE 4 against 9 days for the Suunto Race S. Suunto publishes no always-on figure for the Suunto Race S. For a GPS workout the figures are 41 h and 40 h. Phones differ: the COROS PACE 4 is iphone and android, the Suunto Race S android; iphone with limits. Only the COROS PACE 4 carries full topo maps. Every other published figure for both is in the table, with the rows where they differ tinted.
COROS
COROS PACE 4
~$249
Launched in November 2025, PACE 4 moved COROS's lightest running watch from a memory LCD to a 1.2-inch AMOLED with 164% higher resolution than PACE 3, per COROS.
Best for: Runners who want a light, inexpensive AMOLED training watch that lasts more than a week between charges
Suunto
Suunto Race S
~$349
Suunto calls Race S "the performance watch, just smaller": it keeps the original Race's crown, AMOLED screen and training features in a 45 mm case.
Best for: Runners with smaller wrists who want Suunto's maps and training tools at a lower price
| Specification | COROS PACE 4 | Suunto Race S |
|---|---|---|
| Approx. price | ~$249 (PACE 4 with fiber-reinforced polymer bezel, silicone or nylon band, $249.00 on coros.com) | ~$349 (Race S stainless steel, $349.00 on suunto.com; titanium versions $449.00-$469.00) |
| Type | Running | Multisport |
| Platform | COROS | Suunto |
| Case sizes | 43.4 mm | 45 mm |
| Weight | 43.4 mm: 40 g (with silicone band (32 g with nylon band)) | 45 mm: 60 g (Suunto spec weight, stainless steel All Black (Suunto does not say whether the strap is included)) |
| Battery, smartwatch mode | 19 days (COROS spec: Daily Use & Sleep Tracking 19 Days) | 9 days (Suunto spec: Daily use, Smartwatch mode: up to 9 days) |
| Battery, always-on display | 6 days (COROS spec: 6 Days (with Always-On Display)) | Not published by the maker |
| Always-on keeps | 32% of the headline figure | not published |
| Battery, GPS workout | 41 h (COROS spec: High All Systems 41 Hours; 30 Hours with Always-On Display; 14 hours with offline music playing) | 40 h (Suunto spec: All-Systems GNSS mode + Single-Band: up to 40h) |
| Battery, dual-band GPS | 31 h | 30 h |
| Battery note | COROS publishes no GPS-only mode for PACE 4; the headline is all-systems. Dual-frequency: 31 Hours, 24 with AOD. | Multi-band up to 30h; Tour mode up to 120h with lower accuracy and heart rate off. No AOD figure published. |
| Works with | iPhone and Android | Android; iPhone with limits |
| iPhone | Yes | Yes, with limits |
| Android | Yes | Yes |
| Phone limits | COROS app on iOS and Android; COROS lists Message/Call Alert on both, and its FAQ says the app syncs with Apple Health and Google Fit. | Suunto spec: 'Send predefined replies to incoming messages from watch: Android only'; notifications work on both. |
| Paid tier | No paid tier sold by the maker | No paid tier sold by the maker |
| Update years | Not published by the maker | Not published by the maker |
| Cleared health features | None the maker cites | None the maker cites |
| Display | AMOLED | AMOLED |
| Always-on display | Yes | Yes |
| Dual-band GPS | Yes | Yes |
| Maps | Full topo maps on the watch (COROS spec: Landscape (with trail and street names) and Topo downloadable global maps on 4GB storage; COROS's September 2026 update added maps to PACE 4) | Downloadable maps, no topo (Suunto: free offline maps downloaded to the watch, with route navigation and breadcrumb; the page does not say the on-watch maps carry topographic contours; 32GB outdoor offline map storage) |
| Music on the watch | Yes | No |
| LTE | No LTE version | No LTE version |
| Contactless pay | No | No |
| Flashlight | No | No |
| Water rating | 5 ATM | 50 m |
| Case | fiber-reinforced polymer | glass-fibre reinforced polyamide, stainless steel bezel |
| Released | 2025 | not published |
COROS PACE 4: what it gives up
- 4GB storage leaves far less room for maps and music than the 32GB PACE 4 Pro
- No speaker, so no calls or spoken alerts as on the PACE 4 Pro and APEX 4
- No contactless payments
- Mineral glass instead of sapphire
- Notifications only; no app store or message replies listed
Suunto Race S: what it gives up
- Nine days of smartwatch use, half the Race 2's 18
- Built on the original Race design, a generation behind the Race 2
- Message replies only on Android
- Gorilla Glass rather than sapphire, and a 50 m rating
Full pages: COROS PACE 4 · Suunto Race S