I found Whoop's ‘set-and-forget’ fitness tracker super useful, but too expensive — so how does Google's new screenless challenger, the Fitbit Air, compare?
… Whoop, on the other hand, requires a subscription to work at all, starting at a fairly reasonable £169 / $199 / AU$299 per year for the base Whoop One subscription, which comes with the Whoop 5.0 device but locks metrics like Stress and Whoop Age behind a paywall. …