The 8-day Polar Loop tracker challenges Whoop and Garmin with subscription-free workout data by michael.hicks@futurenet.com (Michael L Hicks) from Latest from Android Central on 2025-09-03 14:51 (#6ZRQB) Polar, the brand behind the popular H10 chest strap and Vantage running watches, is challenging Whoop with its own screenless wristband.
