Wear Radar

Apple WatchvsPolar Grit X

Apple Watch
Buy/Wait:neutral

Reaching maturity, next model expected soon

Best for: iPhone users who want the most capable smartwatch health experience available. Ideal for anyone who values medical-grade monitoring (ECG, blood pressure, SpO2), a premium always-on display, and the best Apple Watch workout tracking. If health is your priority, this is the one to get.

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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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Apple WatchPolar Grit X
TierSmartwatchSports GPS
PlatformiOS onlyiOS & Android
Battery1 days40 days
Always-on display
GPS
Cellular
Health sensorsecg, spo2, skin temp, hrv, blood pressurehr, spo2, hrv, running power
ReleasedSep 19, 2025Mar 14, 2023
Cycle length364 days873 days
Cycle adviceneutralbad
Deals adviceneutralgood
Next modelApple Watch Series 12 (Expected fall 2026)

Why buy each?

Apple Watch

Hypertension detection

The Series 11 is the first mainstream smartwatch to offer FDA-cleared hypertension (high blood pressure) detection — a feature that could flag silent health risks.

Thinnest Apple Watch ever

At 9.7mm, the Series 11 is significantly slimmer than previous models — noticeably lighter on the wrist for all-day and sleep tracking.

ECG, SpO2 and sleep apnea detection

On-demand ECG, continuous blood oxygen monitoring, and sleep apnea detection (FDA-cleared) make this one of the most medically relevant consumer wearables available.

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.