I replaced my Whoop with a rival fitness band that has no monthly fees - and it's nearly as good

The ZDNET review evaluates the Polar Loop fitness band, highlighting its comfortable design, accurate Generation 3.5 optical heart rate sensor, reliable sleep tracking, week-long battery life, and automatic activity detection; it notes limitations such as no GPS, no alarm, absence of skin temperature sensing, an older sensor generation versus Polar watches, and some app mismatches, while concluding the device is a distraction-free, reasonably priced ($200) wellness tracker without subscription fees.