WHOOP 4.0

WHOOP 4.0 sets itself apart with its unparalleled data precision and depth. While standard fitness trackers might offer basic metrics, WHOOP delves deeper by collecting 50-100 megabytes of data daily and sampling metrics 1,000 to 10,000 times more frequently than devices like FitBit or Apple Watch. This intense data sampling ensures a more accurate and granular view of your heart rate, respiratory rate, skin temperature, and other critical metrics. This high-resolution insight allows WHOOP 4.0 to provide detailed, actionable feedback for optimising your training, recovery, and overall health. By capturing such comprehensive data, WHOOP 4.0 helps you make informed decisions and refine your performance with unprecedented precision.

WHOOP was founded in 2012 by Will Ahmed, then a Harvard student athlete, who was determined to enhance his training and recovery. After reviewing over 500 medical papers, Ahmed discovered that continuous monitoring of metrics like heart rate and variability could significantly boost performance and wellbeing. This insight led to the creation of WHOOP, a groundbreaking wearable that provides unparalleled visibility into how sleep, strain, and recovery impact overall health and performance.

From its beginnings with elite athletes like LeBron James and Michael Phelps, WHOOP has revolutionised the understanding of human physiology. The company's mission is to unlock human performance by offering deep insights into the body’s functions and helping users achieve their highest potential physically, mentally, and emotionally. WHOOP’s relentless pursuit of understanding and optimising human performance continues to drive its innovation and impact.

With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.

Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.

Screen size: 4 inches
Item weight: 0.14 kg.

Shipping

At Healf, we prioritize safe and fast delivery for all our customers. Our carefully selected couriers are Royal Mail and DPD.

UK standard delivery

Enjoy free standard delivery on orders above £50, this option usually requires 2-3 working days. If your order is under £50, this delivery option is available for £3.99.

Next working day

For when you need our products urgently, we offer next working day shipping for £5.99. For orders placed before 12.00, we will ship it the same day to ensure you receive your order the next working day.

International

International deliveries can take 7 working days, and up to 4 weeks. The cost is £22.99 for orders below £50, £49.95 for orders above.

Returns

If for any reason you are not satisfied with your order, we provide free 365-day UK returns for all our customers. To initiate your return, simply contact us at team@healf.com, and we'll send you a return slip and help arrange a collection. The item you return must be sent in the same condition as received and inside the original packaging. Once received, we will notify you via email.

For international returns, we unfortunately do not cover the cost. However, we work with an array of carriers and can offer self-posting returns for customers shopping from outside the UK.

The WHOOP strap should be placed on whichever wrist you find most natural, slightly higher than the wrist join. Use in conjunction with the WHOOP app which provides a daily dashboard for sleep, activity, health, recovery, and stress tracking.