Late in cycle — a new model is likely coming
Best for: 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 →Early in release cycle
Best for: Regular runners and triathletes who race 5K to marathon distances and want accurate multi-band GPS, detailed training load management, and Triathlon Coach structured plans. The speaker and microphone make it a more capable daily-wear watch than the FR265 it replaces.
Full details →| Polar Grit X | Garmin Forerunner 570 | |
|---|---|---|
| Tier | Sports GPS | Sports GPS |
| Platform | iOS & Android | iOS & Android |
| Battery | 40 days | 11 days |
| Always-on display | ❌ | ❌ |
| GPS | ✅ | ✅ |
| Cellular | ❌ | ❌ |
| Health sensors | hr, spo2, hrv, running power | hr, spo2, hrv, stress, body battery, training readiness, skin temp |
| Released | Apr 11, 2024 | May 15, 2025 |
| Cycle length | 873 days | 806 days |
| Cycle advice | bad | good |
| Deals advice | good | neutral |
| Next model | — | — |
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.
L1+L5 dual-frequency GPS for precise tracking in cities and trails, paired with Garmin's most advanced heart rate sensor — adding skin temperature monitoring over the FR265.
A first for this price tier — take phone calls, use voice assistant, and hear Bluetooth audio directly from your wrist. A meaningful upgrade over the silent FR265.
AI-powered triathlon training plans that adapt to your swim, bike, and run fitness — a key differentiator over the FR265 for multisport athletes.