GPS accuracy, heart-rate tracking and battery life — we ran, swam and slept with eight smart watches to find the ones worth your money.
Key findings
- GPS drift under 1% on the top two models
- HR accuracy within 2 bpm of a chest strap at zone 3
- Battery winners: 10+ days with always-on display off
See the full comparison table and our winner below.
Polar
Best Smart Watches for Fitness in 2026
-19%
$429.95
$349.99
lowest price we’ve tracked
Get This Deal →
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