Leep vs WHOOP 5.0 and MG

Leep and WHOOP both track sleep, heart rate and heart rate variability (HRV) to tell you how well you are recovering, but they are built very differently. WHOOP is a screenless sensor worn on a strap, sold only as an annual membership, and aimed squarely at training. The Leep Ring is a titanium ring you buy once for £199, aimed at understanding and improving your sleep.

Below we compare cost, comfort, battery life, tracking and women's health as of October 2026. Looking at rings instead? See Leep vs Oura Ring 5 and Leep vs RingConn Gen 3.

The Leep Ring is a British-designed titanium smart ring that tracks sleep, heart rate, HRV, blood oxygen (SpO2), skin temperature, activity and stress. It costs £199 ($199 in the US) with no subscription, weighs 2.5–6 g depending on size and is 2.22 mm at its thinnest. Battery life is up to 8 days, with a charging case that holds 60+ days of backup power, and it is water resistant to 50 m.

WHOOP sells two devices, WHOOP 5.0 and WHOOP MG, both launched in May 2025. You don't buy the hardware: it comes with a membership. WHOOP One costs £169 a year ($199 in the US), Peak £229 ($239) and Life £349 ($359), and Life is the plan that includes the MG with its ECG clasp. The sensor has no screen and can be worn on the wrist, the bicep or in WHOOP Body clothing. It lasts 14+ days on a charge and is water resistant to 10 m.

Leep is built sleep-first. Its sleep insights follow World Sleep Society guidelines and focus on trends over weeks rather than single nights. Heart rate, HRV, temperature and activity all feed into one question: how well you are sleeping and recovering, and what is affecting it.

Everything in the Leep app is included in the £199 price, with no tiers or add-ons, so you never lose access to your data. The ring syncs with Apple Health and Google Fit, so workouts recorded elsewhere can sit alongside your sleep data. Because it is a ring, there is no strap to wear in bed or swap for nights out.

WHOOP turns its data into three daily numbers: sleep, recovery and strain. It coaches you on how hard to train and how much sleep you need, with a Sleep Planner, a haptic wake alarm, VO2 max, heart-rate zones, a Strength Trainer and AI coaching on every plan. Peak adds the Health Monitor (live heart rate, HRV, respiratory rate, blood oxygen and skin temperature), a real-time Stress Monitor and Healthspan, WHOOP's estimate of your pace of ageing. Life adds an on-demand ECG and, in the UK, irregular heart rhythm notifications, plus Blood Pressure Insights, a beta wellness estimate calibrated with a cuff.

Women's health is a real strength. Every plan includes Menstrual Cycle Insights, which predict your period and adjust strain and sleep advice by phase, plus pregnancy and postpartum insights. Since August 2026 WHOOP can also share your overnight temperature with Natural Cycles, an FDA-cleared birth control app (the first year of Natural Cycles is free for new users).

The trade-off is the membership. Plans are usually paid yearly, there are no part-year refunds, and once a membership ends WHOOP stops collecting and analysing your data; your past data stays viewable.

Leep suits people whose main goal is better sleep and who want solid heart rate and HRV trends without paying every year. Over three years, Leep costs £199 in total, while WHOOP costs between £507 (One) and £1,047 (Life). It is also the more comfortable option if you dislike sleeping in a wrist strap. If you want a subscription-free ring with more features, see Leep vs RingConn Gen 3.

WHOOP is the better choice for people who train regularly and want to be told how hard to push each day, with detailed strain, recovery and strength coaching and 14+ days between charges. Its women's health features, from cycle-phase coaching to pregnancy insights and Natural Cycles, are among the most complete of any wearable. Choose Life if an ECG matters to you. Just budget for the membership for as long as you want to use it.