| Polar Vantage V | COROS Vertix | |
|---|---|---|
| Pricing | ||
| Starting price | $599★ | $699 |
| Subscription | ✓ None | ✓ None |
| Hardware | ||
| Weight | 39g★ | 73g |
| Water resistance | 5ATM | 10ATM★ |
| Battery | 8 days | 140 days★ |
| Always-on display | ✅★ | ❌ |
| GPS | ✅ | ✅ |
| Cellular | ❌ | ❌ |
| Platform | iOS & Android | iOS & Android |
| Tier | Sports GPS | Sports GPS |
| Buy timing | ||
| Released | Oct 4, 2023 | Oct 1, 2023 |
| Cycle advice | bad | bad |
| Deals advice | good | good |
| Next model | Polar Vantage V4 (2026) | COROS Vertix 3 (2026 or 2027) |
Polar Vantage V3 is one of the few sports GPS watches with on-demand ECG — usually only found on lifestyle smartwatches.
Running power measurement without a foot pod or chest strap — a significant training metric for pacing effort on hills and varied terrain.
The most detailed training load analysis in any sports watch: muscle groups targeted per session, recovery status per muscle, and long-term load trends.
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.
The right pick depends on what you optimize for.
$599 vs $699 over 3 years · no required subscription.
140 days vs 8 days battery.
6 sensors.
39g · no required subscription.
Serious endurance athletes — particularly runners and triathletes — who want Polar's unmatched training load science and recovery guidance, combined with ECG health monitoring and running power in a premium package.
Full details →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 →