Leep vs RingConn Gen 3

Leep and RingConn are two of the few smart rings that never ask for a monthly fee, so this comparison comes down to what you get for the one-off price. RingConn Gen 3, launched in May 2026, is RingConn's most advanced ring and packs in more health features than Leep. The Leep Ring costs about £110 less, is slightly thinner and is built around one job: helping you understand and improve your sleep.

Here is how they compare on price, battery life, tracking, women's health and buying in the UK. If you are also looking at subscription rings, see Leep vs Oura Ring 5 and Leep vs WHOOP.

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, 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. It syncs with Apple Health and Google Fit.

RingConn Gen 3 is the newest ring from RingConn, sold alongside the cheaper Gen 2 and Gen 2 Air. It tracks sleep, heart rate, HRV, SpO2, skin temperature, stress, steps, respiratory rate and VO2 max, and adds sleep apnea insights, blood-pressure trends and vibration alerts. It costs $349 in the US ($369 for brushed finishes) and about £309 in the UK, with no subscription. It weighs 2.5–3.5 g, is 2.3 mm thick and lasts up to 14 days on a charge.

Leep is built sleep-first. Its sleep insights follow World Sleep Society guidelines and focus on trends over weeks rather than single-night scores, because one night rarely tells you much. Heart rate, HRV, temperature and activity all feed into the same picture: how well you are recovering and what is affecting your nights.

Everything in the Leep app is included in the £199 price. There are no paid tiers or add-ons. The ring is aerospace-grade titanium with a hypoallergenic resin lining, and it syncs with Apple Health and Google Fit so your workouts from other apps can sit alongside your sleep data.

Buying is simple in the UK: Leep ships from the UK with free delivery, sends a free sizing kit if you don't know your size, and offers no-quibble returns within 30 days.

RingConn Gen 3 aims to cover as much as possible without a subscription. Alongside the usual sleep, heart rate, HRV, SpO2 and temperature tracking, it adds sleep apnea pattern insights from blood oxygen sampled every two seconds, VO2 max, a weekly Lifestyle Score, an AI health assistant and automatic workout detection.

Two features are new for Gen 3. Vascular health trends estimate blood-pressure trends rather than single readings, and need calibrating with a blood-pressure cuff three times on the first day and then every 28 days. Vibration alerts can nudge you about health alerts, sitting too long or low battery while the app is connected. RingConn says the ring is not a medical device. In October 2026 it announced FDA 510(k) clearance for blood-oxygen measurement; the sleep apnea feature is not cleared as a diagnosis.

Women's health features are free: RingConn predicts cycle phases from skin temperature, sends period reminders and, since February 2026, estimates fertile windows. RingConn itself says the ring should not be treated as an ovulation detector.

Leep suits people who want reliable sleep, heart rate and HRV tracking for the lowest one-off cost, without features they will not use. It is a good fit if you are buying in the UK and want the reassurance of free UK delivery and 30-day no-quibble returns, or if you prefer the thinnest ring. If you also want to compare a subscription ring, see Leep vs Oura Ring 5.

RingConn Gen 3 is the better choice if you want as many health features as possible without a subscription. Free cycle and fertility tracking makes it the stronger option for anyone who wants period and fertile-window predictions. It also suits people who want two weeks between charges, swim or dive often, or want to keep an eye on sleep apnea patterns and blood-pressure trends. Factor in that it costs about £110 more and that RingConn's returns are limited to faults or the wrong item.