| COROS Apex | Apple Watch Ultra | |
|---|---|---|
| Pricing | ||
| Starting price | $429★ | $799 |
| Subscription | ✓ None | ✓ None |
| Hardware | ||
| Weight | 40g★ | 62g |
| Water resistance | 5ATM | 100m★ |
| Battery | 24 days★ | 1.75 days |
| Always-on display | ❌ | ✅★ |
| GPS | ✅ | ✅ |
| Cellular | ❌ | ✅★ |
| Platform | iOS & Android | iOS only |
| Tier | Sports GPS | Sports GPS |
| Buy timing | ||
| Released | Oct 15, 2025 | Sep 19, 2025 |
| Cycle advice | good★ | neutral |
| Deals advice | neutral | neutral |
| Next model | — | Apple Watch Ultra 4 (Expected fall 2026) |
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.
The Ultra 3 nearly doubles the Series 11 battery life, and satellite emergency SOS works even without cellular or WiFi coverage.
More precise GPS tracking in urban canyons and dense forests — critical for trail running, mountaineering, and triathlon.
The 49mm titanium case and 3000-nit display make this watch usable in full direct sunlight and water depths up to 100m (EN13319 certified for diving).
The right pick depends on what you optimize for.
$429 vs $799 over 3 years · no required subscription.
24 days vs 1.75 days battery.
12 sensors.
40g · no required subscription.
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 →Serious athletes, trail runners, triathletes, and outdoor adventurers who need the most durable, most accurate GPS watch Apple makes. Also for iPhone users who simply want the best Apple Watch regardless of sport, and value the extra battery life over the Series 11.
Full details →