Overdue for a refresh — no successor announced yet. Prices should be at their lowest
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 →Overdue for a refresh — no successor announced yet. Prices should be at their lowest
Best for: Android or iPhone users who want a balanced smartwatch with solid Fitbit health tracking, multi-day battery, and a clean square watch design — without the premium price of a Galaxy Watch or Apple Watch.
Full details →| Polar Grit X | Fitbit Versa | |
|---|---|---|
| Tier | Sports GPS | Smartwatch |
| Platform | iOS & Android | iOS & Android |
| Battery | 40 days | 6 days |
| Always-on display | ❌ | ❌ |
| GPS | ✅ | ✅ |
| Cellular | ❌ | ❌ |
| Health sensors | hr, spo2, hrv, running power | spo2, hr, hrv, eda stress |
| Released | Mar 14, 2023 | Sep 25, 2022 |
| Cycle length | 873 days | 730 days |
| Cycle advice | bad | bad |
| Deals advice | good | good |
| 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.
Rare for a smartwatch with real GPS and health sensors to work fully on both platforms — Versa 4 does.
Turn-by-turn navigation and NFC payments without needing your phone in hand.
Sleep stages, daily readiness score, Active Zone Minutes, and SpO2 — all on a 6-day charge.