COROS PACE 4 vs Suunto Run 2
The Suunto Run 2 lists for about $100 more than the COROS PACE 4. On the headline smartwatch-mode figure, 19 days for the COROS PACE 4 against 13 days for the Suunto Run 2. Suunto publishes no always-on figure for the Suunto Run 2. For a GPS workout the figures are 41 h and 30 h. 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 Run 2
~$349
Launched on 8 September 2026, Run 2 replaces the original Suunto Run with a 2,000-nit display, which Suunto says is three times brighter, and 29% more battery capacity.
Best for: Road runners and marathoners who want a light AMOLED watch with music and maps
| Specification | COROS PACE 4 | Suunto Run 2 |
|---|---|---|
| Approx. price | ~$249 (PACE 4 with fiber-reinforced polymer bezel, silicone or nylon band, $249.00 on coros.com) | ~$349 (Run 2 4GB (maps + music storage), $349.00 on suunto.com; 64GB version $399.00) |
| Type | Running | Running |
| Platform | COROS | Suunto |
| Case sizes | 43.4 mm | 46.5 mm |
| Weight | 43.4 mm: 40 g (with silicone band (32 g with nylon band)) | 46.5 mm: 35 g (watch body; Suunto: 53 g with the Suunto silicone strap) |
| Battery, smartwatch mode | 19 days (COROS spec: Daily Use & Sleep Tracking 19 Days) | 13 days (Suunto spec: Daily use, Smartwatch mode: up to 13 days (product page headline: 10 Days Daily Training Use)) |
| 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) | 30 h (Suunto spec: All-Systems GNSS mode + Single-Band: up to 30h) |
| Battery, dual-band GPS | 31 h | 24 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 is up to 24h, or 18h with always-on display; power-saving GNSS modes up to 40h. Suunto publishes no AOD figure for daily use. |
| Works with | iPhone and Android | iPhone and Android |
| iPhone | Yes | Yes |
| 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 lists predefined message replies and offline music; it gives no iPhone/Android limitation for Run 2 on its spec list. |
| 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; the page does not say the on-watch maps carry topographic contours; 4GB (Standard) or 64GB (Premium) shared with music) |
| Music on the watch | Yes | Yes |
| 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 | 2026 |
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 Run 2: what it gives up
- 4GB base storage fills quickly once maps and music share it; 64GB costs more
- 30 hours of single-band GPS, well short of the Race 2's 65
- Suunto gives no daily battery figure with the always-on display enabled
- 50 m water rating, half the Race 2 and Vertical 2
Full pages: COROS PACE 4 · Suunto Run 2