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Evening Standard
Evening Standard
Saskia Kemsley

Amazon Prime Day 2025: This is the first time the Oura Ring 4 has been discounted

Sound the alarms. This Prime Day, Oura will be offering an impressive 15 per cent off all OR4 finishes from July 8 until July 11.

Though beloved by A-listers across the globe, the Oura is far from just a fad. Offered in a myriad of styles to suit your personal aesthetic, the remarkably high-tech ring delivers accurate, personalised health data, insights, and daily guidance.

The fourth-generation accessory includes new features such as a meal and glucose tracking capability designed to give users a better understanding of how diets impact overall health in terms of sleep, activity, stress and more.

Oura also now offers users insights on cardiovascular age, relative to chronological age, to promote health choices that encourage longevity. Where fitness trackers have previously focused on male-centric metrics, the Oura 4 features women’s health insights in the form of cycle tracking, providing health and training tips depending on where in your menstrual cycle you’re at.

Perhaps best known for its sleep tracking capabilities, the Oura 4 is prized for delivering in-depth data about your sleep stages and how well you slept. It’s even smart enough to detect a change in your body temperature, which might signify that you’re getting a cold. Now that’s hi-tech health.

Buy now: Oura Ring 4: Was: £349, now: £283

Oura Ring 4

Of all the wearable tech I’ve tried this year, the Oura Ring is the one I’ve found most useful—and the only one I’ve continued to wear. It tracks my immune function, resilience to stress, and, most importantly, reminds me when it’s time to prioritise sleep.

One particularly useful feature is Cycle Insights, which uses temperature deviations to accurately track, predict, and visualise my monthly cycle. Even better, it syncs seamlessly with apps like Natural Cycles. Oura Ring members can transfer their overnight temperature trend data into the Natural Cycles app each morning, where it’s analysed by the app’s algorithm to calculate daily fertility status.

Was: £349

Buy now £283.00, John Lewis

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