Every feat of my heart

Whoop's screen-less fitness tracker adds a medical-grade ECG and blood pressure estimates - but the subscription isn't cheap

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₹42,500/yr/crepdogcrew.​com

The Whoop MG can track just about everything, but its bread and butter is strain – your total exertion each day. This affects your recovery score, and the two are combined to give your optimal strain target for the day. It detects activity automatically, but I did find that some shorter bursts slipped through the net.

Whoop's app (Android or iOS) is one of the most intuitive I've used. The home screen shows readings for sleep, strain and recovery, with access to their dashboards just a tap away.