Wear Radar

Polar Grit XvsGarmin Forerunner 265

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.

Full details →
Garmin Forerunner 265
Buy/Wait:bad

Late in cycle — a new model is likely coming

Best for: Regular runners who race 5K to marathon distances and want accurate GPS, detailed training load management, and long battery life. Multi-band GPS makes it particularly valuable for city runners or trail runners where single-band GPS loses accuracy.

Full details →
Polar Grit XGarmin Forerunner 265
TierSports GPSSports GPS
PlatformiOS & AndroidiOS & Android
Battery40 days13 days
Always-on display
GPS
Cellular
Health sensorshr, spo2, hrv, running powerhr, spo2, hrv, stress, body battery, training readiness
ReleasedMar 14, 2023Mar 1, 2023
Cycle length873 days1188 days
Cycle advicebadbad
Deals advicegoodgood
Next model

Why buy each?

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.

Garmin Forerunner 265

Multi-band GPS accuracy

L1+L5 multi-band GPS reduces position drift in urban canyons and dense forest — a meaningful upgrade over single-band watches for competitive runners.

Training readiness score

Daily score combining HRV status, sleep, acute load, and recovery time — tells you whether to train hard, easy, or rest on any given day.

Race time predictor

Estimates your finish time for 5K, 10K, half-marathon, and marathon based on your current fitness — useful for pacing race-day strategy.