Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 - code MAR20
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 - code MAR20
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 - code MAR20
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 - code MAR20
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 - code MAR20
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 - code MAR20
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 - code MAR20

WHOOP 4.0

The WHOOP 4.0 optimises health, fitness and life by tracking biometric data, offering tailored recommendations for lifestyle, habits and training to unlock your potential.

£229.00
In stock. Next day delivery available.

Buy now, pay later from £57.25/mo with

Free UK shipping over £50, free returns.
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Key benefits

  • **Improve sleep, training & recovery:**Get data-driven insights tailored to optimise your rest, workouts, and recovery.

  • **Track key health metrics:**Monitors heart rate, skin temperature, and blood oxygen levels to give you a full picture of your health.

  • 24/7 monitoring, effortless charging: Stay connected to your body with continuous tracking and a rechargeable battery for non-stop insights.

Elevate your health, one insight at a time

WHOOP 4.0 is more than just a fitness tracker—it’s your personal health coach. This cutting-edge wearable device continuously monitors your body’s key metrics and provides personalised, science-backed feedback to help you sleep better, train smarter, and recover faster.

With a 12-month subscription included, WHOOP 4.0 tracks everything from heart rate and respiratory rate to skin temperature, blood oxygen levels, and sleep quality. The result? A comprehensive view of your health and performance, with real-time coaching to guide your daily decisions.

Three core scores to transform your routine

  • Sleep score: Lab-grade sleep tracking ensures you get the rest you need.

  • Strain score: Measures physical and mental exertion to guide your activity levels.

  • Recovery score: Gauges how well your body adapts to stress and signals when it’s time to rest or push harder.

What’s inside

  • **WHOOP 4.0 Hardware:**Equipped with 5 LEDs and 4 photodiodes for lab-validated accuracy.
  • Onyx SuperKnit Band: Comfortable, stylish, and durable.
  • Waterproof Battery Pack: For hassle-free charging and continuous use.

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Frequently Asked Questions

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Curation Process™

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

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Brand Discovery

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Our approach keeps us at the forefront of wellbeing. With our global network of health professionals and AI-powered trend analysis, we curate the leading supplements, tools, and tech that pioneer the industry.

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Expert Validation

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Each product at Healf is carefully examined by a panel of industry specialists—including dieticians, personal trainers, psychologists, and sleep experts—to ensure it meets our high standards for quality, efficacy, and ingredient formulations.

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Community Testing

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By collaborating with a dedicated group of customers who test and review each product, we ensure that only those truly beneficial to your wellbeing are offered here at Healf.