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Best smart rings to buy right now
A smart ring tracks sleep and recovery without a watch on your wrist, but there is no screen, so everything happens in the app. Check whether the brand charges a monthly subscription for the full data before you buy, and use the sizing kit first.
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Best for most people
1. RingConn Gen 2
Sleep apnoea monitoring · Android and iOS · Up to 12 days · None
The ring most people should buy: no app subscription, up to 12 days of battery and support for Android and iPhone, per the listing. It tracks sleep, stress, heart rate, HRV and blood oxygen, and the listing says it monitors sleep apnoea. A ring is not a diagnosis, so take any apnoea warning to your GP, and buy the sizing kit first because RingConn sizes differ from UK ring sizes.
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Best premium pick
2. Oura Ring 5
Silver, size 9 · 50+ · First month included · 40+ apps
The best seller of the rings here, with the listing claiming over 50 health metrics across sleep, stress, heart and women's health, and links to more than 40 apps including Natural Cycles, Flo and Strava. The listing says it was rebuilt with larger sensors in Oura's smallest form yet. Only the first month of membership is included, so the full data becomes a monthly cost after that.
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Best for Samsung phones
3. Samsung Galaxy Ring
7 · Titanium · 2-year extended · None
The ring for anyone already using a Samsung phone and the Samsung Health app, where the listing says Galaxy AI builds your health report and Energy Score. It has a titanium frame and no subscription fee. The listing ties it to Samsung Health and does not mention iPhone support, so treat it as an Android buy.
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Best lightweight ring
4. RingConn Gen 2 Air
Android and iOS · 2.5g · Up to 10 days · 2mm
The thinnest ring here at 2mm and 2.5g, for people who notice anything on their finger at night. The listing says it tracks sleep, heart rate, stress, blood oxygen, activity and menstrual cycles, with up to 10 days of battery. This listing is a fixed size 10, so check with the sizing kit before ordering.
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Best basic tracker
5. BohoJoc Smart Ring
Black, size 10 · iOS and Android · Steps, heart rate, sleep · None
A little-known brand's basic ring for steps, distance, calories, heart rate, blood oxygen and sleep stages, with no subscription and support for iPhone and Android according to the listing. It sells strongly for a lesser-known name. It also claims blood pressure monitoring; treat any such reading as a rough guide, not a measurement to act on.
Nothing matches those filters. Try fewer filters, or search for a brand like "MSI" or "Crucial".
How we rank
Ordered by how well each sells in its Amazon UK category, what the listing confirms it can do, and price. We have not handled these products: the write-ups rest on what each listing states. Prices and stock are checked daily.
Prices are Amazon UK and eBay UK at the time we last checked; they move daily, so confirm on the retailer's page. We earn a small commission if you buy through our links, at no cost to you. It never changes the order. More about how we work.