Wear Radar

Polar Grit XvsSuunto Race

40d vs 16d
battery life
Polar Grit X lasts longer
$500
price gap
Suunto Race cheaper
Polar Grit X
Buy/Wait:bad

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

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Suunto Race
Buy/Wait:bad

Late in cycle — a new model is likely coming

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Polar Grit XSuunto Race
Pricing
Starting price$999$499★
Subscription✓ None✓ None
Hardware
Weight57g★60g
Water resistance100m100m
Battery40 days★16 days
Always-on display❌✅★
GPS✅✅
Cellular❌❌
PlatformiOS & AndroidiOS & Android
TierSports GPSSports GPS
Buy timing
ReleasedApr 11, 2024Aug 27, 2025
Cycle advicebadbad
Deals advicegreatgreat
Next model—Suunto Race 3S (Announced — on sale in the US October 29, 2026)

Health Sensors

Polar Grit X only
1 exclusive sensor
Running PowerWrist-based watt output — tracks effort independent of terrain
Both
3 shared
Heart RateContinuous or on-demand pulse tracking
SpO2Blood oxygen saturation, tracked during sleep
HRVHeart rate variability — stress & recovery scores
Suunto Race only
1 exclusive sensor
Training LoadCumulative workout stress over time

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.

Suunto Race

Significantly improved heart rate accuracy

The redesigned optical HR sensor on Race 2 delivers far more reliable readings during high-intensity sessions — a notable weak point of the original Race that has been addressed.

Dual-frequency GPS at 55h

Dual-frequency L1+L5 multi-constellation GPS for sub-meter precision in urban areas and dense forests, with 55 continuous GPS hours on a single charge.

1.5" AMOLED, thinner and lighter

The display grows to 1.5" at 2000 nits while the case slims to 12.5mm and drops to 76g — more readable in sunlight and easier to wear day-to-day than its predecessor.

Quick Winner

The right pick depends on what you optimize for.

For the budget
Suunto Race wins

$499 vs $999 over 3 years.

For battery life
Polar Grit X wins

40 days vs 16 days battery.

For health depth
Tie

4 sensors each.

For daily comfort
Polar Grit X wins

57g.

Bottom Line

Technical gaps
  1. Grit X-only sensors: Running Power.
  2. Race-only sensors: Training Load.
Commercial gaps
  1. Hardware cost. Race is $500 cheaper upfront ($499 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 Suunto Race if…

Competitive road and trail runners who want Suunto's precise multi-band GPS tracking and a vivid AMOLED display in a lighter, thinner package. A strong alternative to Garmin for athletes who prefer Suunto's clean interface and ecosystem.

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