Polar Loop

Screenless band that, according to the manufacturer, records heart rate around the clock, nightly HRV, sleep and activity; up to 8 days of battery life and no subscription required. Product information is taken from the official manufacturer page; configuration and availability can change.

• Worn continuously; sleep, overnight recovery ("Nightly Recharge") and activity are reviewed in the Polar Flow app.
• The manufacturer describes it as having no vibration, no beeps and no display, so it stays unobtrusive day to day.

Good to know

• No display and no vibration: readings are only visible in the app, there are no prompts on the wrist.
• According to the manufacturer, the sensitivity of automatic workout detection can be adjusted in the Polar Flow app.
• Heart rate and HRV readings from consumer wearables are not medical measurements.

How the values come about

• We read every review against our community rules – first reviews before they go live, later ones afterwards.
• We cannot verify whether someone actually used the product.
• Averages and the distribution appear from the first rating – always with the number of ratings next to them.
• Reviews from employees of a provider are shown but not included in any value.
• Products received free of charge are labelled on the review.