The Whoop 4.0 Features New Sensors and Better HR Tracking


Whoop released its latest subscription-based fitness tracker Whoop 4.0, which upgraded its predecessor with blood oxygen and skin temperature sensors and more accurate heart rate (HR) readings.

  • The Whoop 4.0 includes new oxygen and skin temperature sensors, as well as better HR tracking.
  • Accessory options include a waterproof battery pack and clothing made to wear the tracker in different positions.
  • A subscription is required to get the device, but it’s free for existing subscribers.
DC Rainmaker said that the 4.0 updated HR sensor configuration comes with five LEDs and an additional green light. In fact, there are many hardware changes, including a 33% size reduction, and it retains 5 days of battery life due to better battery technology. The wireless Whoop battery pack, priced at $49, is now waterproof, perfect for running out and getting in the rain.

The additional haptic motor can realize vibration notification. Its first use is a sleep coach, which can wake you up at the optimal stage of sleep.

Whoop also provides a new way to wear trackers through the Whoop Body clothing. This includes not only the new band, but also boxers, bras, shorts and leggings, and even compression tops. These clothes are not designed for the previous Whoop hardware and require an additional charge in addition to the subscription.

Signing up for Whoop costs US$30 per month and takes at least 6 months. Better deals are long-term, with a price of $288 per year, or $324 for 18 months. The advantage of the subscription model is free upgrades-existing customers can get 4.0 for free. The device should be shipped on September 27th.


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