Wear Radar

Fitbit VersavsPolar Grit X

Fitbit Versa
Buy/Wait:bad

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.

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Polar Grit X
Buy/Wait:bad

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.

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Fitbit VersaPolar Grit X
TierSmartwatchSports GPS
PlatformiOS & AndroidiOS & Android
Battery6 days40 days
Always-on display
GPS
Cellular
Health sensorsspo2, hr, hrv, eda stresshr, spo2, hrv, running power
ReleasedSep 25, 2022Mar 14, 2023
Cycle length730 days873 days
Cycle advicebadbad
Deals advicegoodgood
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Why buy each?

Fitbit Versa

Works with Android and iPhone

Rare for a smartwatch with real GPS and health sensors to work fully on both platforms — Versa 4 does.

Google Maps and Google Wallet on wrist

Turn-by-turn navigation and NFC payments without needing your phone in hand.

6-day battery and Fitbit health coaching

Sleep stages, daily readiness score, Active Zone Minutes, and SpO2 — all on a 6-day charge.

Polar Grit X

40-day battery for trail and ultra runners

Five times the battery of the Vantage V3 — enough for week-long mountain stages or ultramarathons without charging access.

Hill splitter auto-detection

Automatically segments your run by uphill and downhill sections, calculating pace and power for each — essential for mountain race training.

Wrist running power at mid-range price

Running power without a chest strap or foot pod — Polar's key differentiator versus Garmin at this price tier.