Whoop fitness trackerNow ECG and blood pressure measurement

Julian Schultz

 · 08.05.2025

With the Whoop MG (photo) and Whoop 5.0, the US company presents two new fitness trackers.
Photo: Julian Schultz
Whoop has unveiled two new wearables, the Whoop 5.0 and Whoop MG. These fitness trackers promise improved battery life and optimised data collection in a more compact design. The US company also offers new health functions, including ECG measurement. There are now also 3 subscription models instead of one.

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Cycling superstar Mathieu van der Poel (Alpecin-Deceuninck) not only made headlines this spring with his Classics successes in Sanremo and Roubaix. Like Tadej Pogacar (UAE Team Emirates - XRG), the Dutchman also skilfully showcased his watch sponsor by wearing a Richard Mille chronometer costing more than 300,000 euros during the race. It almost went unnoticed that the classic specialist was wearing another, comparatively inconspicuous accessory on his right wrist: a fitness tracker from Whoop.

Facts & figures about Whoop 5.0 and MG

  • Model variants: Whoop 5.0 and Whoop MG (Medical Grade)
  • Battery life: up to 14 days
  • Weight: 27 grams (including wristband)
  • Functions: ECG measurement, blood pressure recording, biological age, etc.
  • Prices: 199 to 399 euros/year, three subscription models

The US brand is now presenting a new generation of the wearable. The Whoop 5.0 and Whoop MG are the first two versions of the tracker. In addition to a slightly smaller design, the main innovation is the longer battery life. Both versions should last up to 14 days on a single charge, whereas the predecessor ran out of power after a maximum of five days according to the manufacturer. Improved sensors record data 26 times per second, while a newly developed processor delivers ten times greater energy efficiency. Thanks to a small power bank that charges the tracker inductively, the new Whoop should be able to collect fitness and health data for up to four weeks. However, the wireless "Power Pack" is only included with the most expensive subscription model.

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The sensor weighs 13 grams and records data such as heart and breathing rate on the wrist.Photo: Julian SchultzThe sensor weighs 13 grams and records data such as heart and breathing rate on the wrist.
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Focus on the heart: ECG and blood pressure

As the new generation remains a pure fitness tracker without a display, the numerous functions can only be used in combination with a smartphone. One of the new features is "Healthspan". This involves the calculation of biological age and the rate of ageing, which was developed in cooperation with a Belgian gerontologist. As with modern smartwatches, it should also be possible to carry out an ECG measurement (electrocardiogram). This function is only possible with the Whoop MG because, unlike the Whoop 5.0, it has two sensor recesses on the side of the device into which the thumb and index finger must be placed. The so-called "Heart Screener" is designed to recognise signs of atrial fibrillation and notifies the user of an irregular heart rhythm once a day. According to the manufacturer, the function has been approved by the US Food and Drug Administration (FDA).

The blood pressure recording function is still in the beta stage but can already be used. However, Whoop expressly points out that the function only provides estimated systolic and diastolic values and does not replace a medical device. The wearable also offers women the possibility of analysing how hormonal changes during the menstrual cycle affect performance. In addition, the familiar evaluation of sleep quality is more accurate. In addition to cycling, fitness tracking now includes over 145 activities, from daily steps and VO₂ Max to muscular exertion. The function can be used to monitor and improve your own performance. Coaching using artificial intelligence, which Whoop introduced last yearcan still be used in beta studies.

Prices for Whoop 5.0 and MG

An annual Whoop membership is required to use the new functions. The three new models are called One, Peak and Life. These cost 199, 264 or 399 euros for twelve months. The US company is also offering new accessories such as wristbands and functional clothing. Due to the smaller size of the tracker, the wristbands of the old generations cannot be combined with the new devices.

Julian Schultz is a qualified sports scientist and trained sports journalist and is responsible for testing complete bikes. From competition bikes to gravel bikes, he tests the latest models and keeps his eyes open for the latest trends. This includes the Tour de France, where the test editor has been on the lookout for technical details and stories from the paddock since 2022.

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