Leep vs Ultrahuman Ring PRO

Neither Leep nor Ultrahuman requires a subscription, which puts them in a different camp from Oura and WHOOP. The difference is what the one-off price buys. Ultrahuman Ring PRO, launched in 2026, is Ultrahuman's flagship and the only Ultrahuman ring sold in both the UK and the US. It costs £429 and offers optional paid add-ons on top. The Leep Ring costs £199 and includes everything in that price.

We focus on Ring PRO, with notes on the cheaper Ring AIR for UK buyers. You may also want to read Leep vs RingConn Gen 3, another subscription-free ring, and Leep vs Oura Ring 5.

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

Ultrahuman Ring PRO is a titanium unibody ring that tracks sleep, recovery, HRV, resting heart rate, skin temperature, stress and movement, with an estimate of VO2 max. It costs £429 ($479 in the US) including a charging case, lasts up to 15 days on a charge (around 12 in its Turbo mode) and is water resistant to 100 m. It weighs 3.3–4.8 g and is 2.65 mm thick. Ultrahuman also sells Ring AIR in the UK, a lighter ring with 4–6 days of battery at a list price of £329 (often discounted); Ring AIR is not sold in the US.

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, blood oxygen, temperature and activity all feed into one picture of how well you are sleeping and recovering.

Leep keeps things simple: one price, one app, every feature included, and no add-on store. It syncs with Apple Health and Google Fit, ships from the UK with free delivery and comes with a free sizing kit and 30-day no-quibble returns.

Ultrahuman's free features include a Sleep Index with sleep stages, Dynamic Recovery, HRV and resting heart rate, skin temperature, Stress Rhythm, a Movement Index for steps and workouts, Cardio Age based on estimated VO2 max, and circadian tools such as Caffeine Window. On top of that, Ultrahuman sells "PowerPlugs": some are free, others are paid. You can also pay for Ultrahuman Max (£9.99 a month or £99.99 a year), which bundles the premium PowerPlugs, its Jade AI assistant and device cover.

Women's health is a strength. The free Cycle & Ovulation PowerPlug predicts periods and a fertile window from temperature, HRV and heart rate, and Pregnancy Insights is free too. The paid Cycle & Ovulation Pro (£29.99 a year) uses OvuSense technology to confirm ovulation, and Ultrahuman says it is certified as a Class IIa medical device in the UK and EU. Perimenopause is covered through a Clue Plus partnership rather than a native feature.

For heart health, Heart Scan (October 2026) adds free 60-second AFib spot checks in the UK and Europe, and nightly AFib Detection is a paid PowerPlug (not offered in the US). Ultrahuman says Ring PRO is not a medical device. In the US, Ring PRO returned to sale in March 2026 after US Customs ruled its redesign did not infringe Oura's patent; in October 2026 Oura filed a new lawsuit, and Ultrahuman says Ring PRO remains on sale.

Leep suits people who want dependable sleep and recovery tracking, including blood oxygen, for the lowest one-off price, and who like knowing there is nothing extra to buy later. At £199 it costs £230 less than Ring PRO. If you are deciding between subscription-free rings, also see Leep vs RingConn Gen 3.

Ultrahuman Ring PRO is the better choice if women's health or heart rhythm checks matter to you: period, fertile window and pregnancy tracking are free, ovulation confirmation is available as a regulated add-on, and UK users get free AFib spot checks. Its 12–15 day battery and 100 m water resistance also beat Leep. If you are in the UK and want Ultrahuman for less, Ring AIR costs £329 at list price, with shorter battery life.