Wear Radar

Garmin Forerunner 265vsPolar Vantage V

13d vs 8d
battery life
Garmin Forerunner 265 lasts longer
$150
price gap
Garmin Forerunner 265 cheaper
Garmin Forerunner 265
Buy/Wait:superseded

This model is no longer sold new. It has been replaced by the Garmin Forerunner 570.

Full details →
Polar Vantage V
Buy/Wait:bad

Late in cycle — a new model is likely coming

Full details →
Garmin Forerunner 265Polar Vantage V
Pricing
Starting price$449$599
Subscriptionℹ️ Optional — $70/yr✓ None
Hardware
Weight47g39g
Water resistance5ATM5ATM
Battery13 days8 days
Always-on display
GPS
Cellular
PlatformiOS & AndroidiOS & Android
TierSports GPSSports GPS
Buy timing
ReleasedMar 1, 2023Oct 4, 2023
Cycle advicesupersededbad
Deals adviceclearancegood
Next modelPolar Vantage V4 (2026)

Health Sensors

Garmin Forerunner 265 only
3 exclusive sensors
Stress TrackingStress estimate from HRV and physiological signals
Body BatteryGarmin's energy reserve — how much fuel left in the tank
Training ReadinessDaily recovery score — how ready you are to perform
Both
3 shared
Heart RateContinuous or on-demand pulse tracking
SpO2Blood oxygen saturation, tracked during sleep
HRVHeart rate variability — stress & recovery scores
Polar Vantage V only
3 exclusive sensors
ECGDetects irregular heart rhythms (AFib)
Running PowerWrist-based watt output — tracks effort independent of terrain
Skin TempOvernight changes linked to illness or cycle tracking

Why buy each?

Garmin Forerunner 265

Multi-band GPS accuracy

L1+L5 multi-band GPS reduces position drift in urban canyons and dense forest.

Training readiness score

Daily score combining HRV status, sleep, acute load, and recovery time.

Race time predictor

Estimates finish time for 5K, 10K, half-marathon, and marathon based on current fitness.

Polar Vantage V

ECG on a sports GPS watch

Polar Vantage V3 is one of the few sports GPS watches with on-demand ECG — usually only found on lifestyle smartwatches.

Wrist-based running power

Running power measurement without a foot pod or chest strap — a significant training metric for pacing effort on hills and varied terrain.

Polar Training Load Pro

The most detailed training load analysis in any sports watch: muscle groups targeted per session, recovery status per muscle, and long-term load trends.

Quick Winner

The right pick depends on what you optimize for.

For the budget
Polar Vantage V wins

$599 vs $659 over 3 years · no required subscription.

For battery life
Garmin Forerunner 265 wins

13 days vs 8 days battery.

For health depth
Garmin Forerunner 265 wins

6 sensors.

For daily comfort
Polar Vantage V wins

39g · no required subscription.

Bottom Line

Technical gaps
  1. Forerunner 265-only sensors: Stress Tracking, Body Battery, Training Readiness.
  2. Vantage V-only sensors: ECG, Running Power, Skin Temp.
  3. Weight. Vantage V is 8g lighter — relevant for all-day comfort and sleep.
Commercial gaps
  1. Hardware cost. Forerunner 265 is $150 cheaper upfront ($449 vs $599).
Pick the Garmin Forerunner 265 if…

Regular runners who race 5K to marathon distances and want accurate GPS and detailed training load management.

Full details →
Pick the Polar Vantage V if…

Serious endurance athletes — particularly runners and triathletes — who want Polar's unmatched training load science and recovery guidance, combined with ECG health monitoring and running power in a premium package.

Full details →