Polar Loop review

Polar pitches the Loop as a tracker you can forget you are wearing, and the feature list follows that idea. It has no screen and no notifications, and it tracks sleep, steps, activity and training automatically, so there is nothing to start or stop. Polar lists 24/7 heart rate and nightly HRV, a sleep score built from light, deep and REM sleep and interruptions, and Nightly Recharge, which combines sleep, heart rate, HRV and breathing into an overnight recovery reading. Daily Alertness predicts how focused you will be based on recent sleep, and activity targets adjust to your fitness level. Polar rates the battery at up to 8 days with 4 weeks of onboard memory, and the WR30 rating covers swimming. The main selling point is that it is subscription-free, with no locked features. The downside is the price: at $199.99 it matches the Garmin CIRQA, which documents more training metrics and a longer battery.

Who it is for

People who want automatic sleep and activity tracking with no screen, no notifications and no monthly fee.

Price

$199.99 at Polar's US store when checked.

POLAR Loop SoftWeave Textile $199.99
Quoted from the vendor pricing page on November 8, 2026.

Key features

• 24/7 heart rate and nightly HRV
• Sleep stages with a morning sleep score
• Nightly Recharge recovery score and Daily Alertness prediction
• Automatic tracking of steps, activity and training sessions
• WR30 rating suitable for swimming

Strengths and weaknesses

• Strength: Subscription-free with every feature available from day one
• Strength: Up to 8 days of battery and 4 weeks of onboard memory
• Strength: No buzzing or screen, by design
• Weakness: No screen or notifications at all
• Weakness: Costs as much as the Garmin CIRQA
• Weakness: Data is viewed in the Polar Flow app only

Key facts

• Price: $199.99
• Display: None
• Battery: Up to 8 days
• Water: WR30, suitable for swimming
• Subscription: None

Where it ranks

Polar Loop is No. 5 in our Best Fitness Trackers verdict.