Tech Specs: Whoop 4.0
Price: £27.00 / $30.00 per month | £229.00 / $239.00 annual | £384.00 / $399.00 bi-annual
Dimensions: 25.0 mm x 35.97 mm x 10.1 mm (sensor)
Weight: 28.5g (with strap)
The Whoop 4.0 is best described as a wearable health and fitness tracker. Many people liken it to a smartwatch, and it currently features in our guide to the best heart rate monitors, but it's in a niche category, with more established competition from smart rings such as Oura and Ultra Human than the wrist-based wearables from the likes of Fitbit or Polar.
