Wear Radar

Polar Grit XvsPolar Vantage V

40d vs 8d
battery life
Polar Grit X lasts longer
$300
price gap
Polar Vantage V cheaper
18g
lighter
Polar Vantage V
2
more health sensors
Polar Vantage V
Polar Grit X
Buy/Wait:bad

Overdue for a refresh — no successor announced yet. Prices should be at their lowest

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Polar Vantage V
Buy/Wait:bad

Overdue for a refresh — no successor announced yet. Prices should be at their lowest

Full details →
Polar Grit XPolar Vantage V
Pricing
Starting price$999$699★
Subscription✓ None✓ None
Hardware
Weight57g39g★
Water resistance100m★5ATM
Battery40 days★8 days
Always-on display❌✅★
GPS✅✅
Cellular❌❌
PlatformiOS & AndroidiOS & Android
TierSports GPSSports GPS
Buy timing
ReleasedApr 11, 2024Oct 4, 2023
Cycle advicebadbad
Deals advicegreatgreat
Next model——

Health Sensors

Polar Grit X only
No exclusive sensors
Both
4 shared
Heart RateContinuous or on-demand pulse tracking
SpO2Blood oxygen saturation, tracked during sleep
HRVHeart rate variability — stress & recovery scores
Running PowerWrist-based watt output — tracks effort independent of terrain
Polar Vantage V only
2 exclusive sensors
ECGDetects irregular heart rhythms (AFib)
Skin TempOvernight changes linked to illness or cycle tracking

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-based running power

Running power without a chest strap or foot pod, built into the watch.

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

$699 vs $999 over 3 years.

For battery life
Polar Grit X wins

40 days vs 8 days battery.

For health depth
Polar Vantage V wins

6 sensors.

For daily comfort
Polar Vantage V wins

39g.

Bottom Line

Technical gaps
  1. Vantage V-only sensors: ECG, Skin Temp.
  2. Weight. Vantage V is 18g lighter — relevant for all-day comfort and sleep.
  3. Water resistance. Grit X rates 100m vs 5ATM on Vantage V.
Commercial gaps
  1. Hardware cost. Vantage V is $300 cheaper upfront ($699 vs $999).
Pick the Polar Grit X if…

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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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.

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