by Polar • Model: Loop
Polar launched Loop on September 3, 2025 as a screenless band with no monthly fee. The US price is $199.99. Polar's spec sheet lists a stainless steel case, 27 mm wide, 42 mm tall, and 9 mm thick, at 29 g with the band and 19.5 g without it. The sensor set on that sheet is Precision Prime optical heart rate, generation 3.5, and an accelerometer. Battery life in watch mode is 8 days from a 170 mAh cell, charged with Polar Charge 2.0 on a USB-C cable. Water resistance is WR30. Onboard storage is 16 MB, and Polar's launch announcement says the memory holds about four weeks of data. Polar Flow, which is free, shows Nightly Recharge, Sleep Plus Stages, SleepWise, Training Load Pro, activity, and automatic training detection. Workouts can be started in the app. There is no screen and no button. An optional Polar Fitness Program has been priced around 9.99 euro a month. It is not required, and the core band does not depend on it. Polar states a 2-year guarantee.
Eligibility may vary by provider and plan. Check with your HSA/FSA administrator for specific details.
Evidence-based evaluation by medical professionals
"A one-time $199.99 for Polar heart rate, sleep, and recovery, without the sensors the pricier rivals publish."
Polar Loop scores 85/100: Overall Value 87, Hardware and Wearability 85, App Experience 85, Measurement Accuracy 84. Polar launched it on September 3, 2025 at $199.99 with no required subscription. The spec sheet lists Precision Prime optical heart rate, an accelerometer, 8 days of battery, WR30, and a stainless steel case. Polar Flow adds Nightly Recharge, Sleep Plus Stages, and Training Load Pro at no fee. SpO2, skin temperature, and ECG are absent from the published sensor list. The 85 is an editorial score of that sheet, not a Medgrade wearing trial.
Ranked #5 of 6 clinically evaluated screenless fitness trackers devices
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Verified retailers and current pricing
$199.99. Free Polar Flow app. Optional Polar Fitness Program is a separate training-plan subscription and is not required to use the band. 2-year guarantee.
