This model is no longer sold new. It has been replaced by the Garmin Forerunner 570.
Best for: Regular runners who race 5K to marathon distances and want accurate GPS and detailed training load management.
Full details →Current model just released
Best for: Trail runners, ultramarathon athletes, and multisport competitors who want full offline maps and long GPS battery without paying Vertix 2S prices. The speaker and depth gauge make the Apex 4 more capable than any previous Apex for mixed adventure and triathlon use.
Full details →| Garmin Forerunner 265 | COROS Apex | |
|---|---|---|
| Tier | Sports GPS | Sports GPS |
| Platform | iOS & Android | iOS & Android |
| Battery | 13 days | 24 days |
| Always-on display | ❌ | ❌ |
| GPS | ✅ | ✅ |
| Cellular | ❌ | ❌ |
| Health sensors | hr, spo2, hrv, stress, body battery, training readiness | hr, spo2, hrv, training load, skin temp |
| Released | Mar 1, 2023 | Oct 15, 2025 |
| Cycle length | 806 days | 1126 days |
| Cycle advice | superseded | good |
| Deals advice | clearance | neutral |
| Next model | — | — |
L1+L5 multi-band GPS reduces position drift in urban canyons and dense forest.
Daily score combining HRV status, sleep, acute load, and recovery time.
Estimates finish time for 5K, 10K, half-marathon, and marathon based on current fitness.
The 46mm Apex 4 delivers 65 hours of GPS tracking and 24 days typical use — enough for multi-day mountain events without charging. The 42mm offers 41h GPS and 15 days.
Global topographic maps with instant rendering, turn-by-turn navigation, POIs, and an underwater depth gauge — the Apex 4 is the first COROS mid-tier with a depth sensor.
Audio alerts, hands-free calling, and voice pin recording — a first for the Apex line, adding practical trail and daily-wear convenience to this mountain sports watch.