The Loop is designed to be worn around the clock for eight days at a time, at which point the battery will need charging. The memory, for its part, can hold four weeks’ data.
Finnish wearables company Polar has introduced a screen-less, button-less, subscription-free wristband that records vital signs (heart rate, steps taken), sleep quality and duration, and training measurements. Called the Polar Loop, the device consists of a fabric band and a buckle, which contains the sensors and other technical guts. The Loop automatically syncs all the data it collects to Polar Flow, the same smartphone app that links to Polar’s training watches.

The Loop is designed to be worn around the clock for eight days at a time, at which point the battery will need charging. The memory, for its part, can hold four weeks’ data. Polar describes its product as a “one-time purchase,” with all features on tap right away. The data it records “stay yours” and can be viewed, exported or deleted at will, “with no paywalls or upsells.” That data, Polar says, is subject to EU law and “stays inside the Polar ecosystem,” never to be “sold to third parties” and always “erased if you close your account.”
Orders began on Sept. 3, with shipping to begin on Sept. 10. The retail price is €179.90, with every interchangeable band costing €19.90. The Loop comes in Greige Sand, Night Black and Brown Copper.