| COROS Vertix | Polar Grit X | |
|---|---|---|
| Pricing | ||
| Starting price | $699★ | $749 |
| Subscription | ✓ None | ✓ None |
| Hardware | ||
| Weight | 73g | 57g★ |
| Water resistance | 10ATM | 100m★ |
| Battery | 140 days★ | 40 days |
| Always-on display | ❌ | ❌ |
| GPS | ✅ | ✅ |
| Cellular | ❌ | ❌ |
| Platform | iOS & Android | iOS & Android |
| Tier | Sports GPS | Sports GPS |
| Buy timing | ||
| Released | Oct 1, 2023 | Apr 11, 2024 |
| Cycle advice | bad | bad |
| Deals advice | good | good |
| Next model | COROS Vertix 3 (2026 or 2027) | — |
No other GPS watch currently on the market delivers 140 hours of GPS tracking — enough for most ultra-endurance events and multi-day mountain traverses.
GPS + GLONASS + Galileo + BeiDou + QZSS with dual-frequency reduces error in challenging terrain to near-meter precision.
Military-grade scratch and impact resistance for the harshest environments: extreme altitude, cold, and sustained physical stress.
Five times the battery of the Vantage V3 — enough for week-long mountain stages or ultramarathons without charging access.
Automatically segments your run by uphill and downhill sections, calculating pace and power for each — essential for mountain race training.
Running power without a chest strap or foot pod — Polar's key differentiator versus Garmin at this price tier.
The right pick depends on what you optimize for.
$699 vs $749 over 3 years · no required subscription.
140 days vs 40 days battery.
5 sensors.
57g · no required subscription.
Expedition athletes, mountaineers, and ultra-endurance competitors who do multi-day or multi-week events where charging is impossible. If you need GPS tracking for 140 continuous hours, no other watch comes close.
Full details →Trail runners, hikers, and outdoor athletes who want Polar's analytics with significantly longer battery life than the Vantage V3. The titanium case and sapphire glass make it suitable for technical terrain where watch durability matters.
Full details →