No, you should not pick your usual ring size when you order an Oura Ring. Oura makes its rings in whole sizes only, and those sizes differ slightly from standard US ring sizes. A size 7 from a jeweler is therefore no guarantee of a size 7 Oura Ring. The free sizing kit is the … Read more
The inside of an Oura Ring 5, Oura’s newest ring since May 2026, holds green, red and infrared LEDs, a digital temperature sensor and an accelerometer. A smart ring shines light into your finger, reads the temperature of your skin and records how your hand moves. Sleep stages, readiness scores, stress levels, cycle predictions and … Read more
The Oura Ring 5 is a smaller, slimmer ring with a slightly longer rated battery life, and it costs $50 more than the Oura Ring 4 in the base finishes. Both rings have the same four sensors, use the same app and need the same membership. By mid-September 2026, no independent study had shown the … Read more
A smart ring only works when it sits correctly on your finger. Unlike a watch you can loosen or a band you can shift, a ring has one job: stay snug against your skin so its sensors can read your pulse, temperature, and movement all night and all day. With the Ultrahuman Ring Air, getting … Read more
At just 2.4 grams and with no subscription, the Ultrahuman Ring Air tracks recovery and metabolic health through a free app. Our review, plus a US availability note.
The RingConn Gen 3 chases one win: up to 14 days of battery with no subscription. Our review weighs its specs, tracking and the trade-offs involved.
The Samsung Galaxy Ring charges nothing after purchase: no monthly fee and no locked features. For Samsung users, our review explains why it makes sense.
The Oura Ring 4 refines a proven sensor setup in a smoother titanium shell, staying focused on sleep and recovery. Our review of where it still leads.
The Oura Ring 4 pairs strong accuracy with a mandatory subscription, while the Galaxy Ring is fee-free but Samsung-focused. Here is how to choose between them.
Why a 200-dollar European smart ring and a 25-dollar AliExpress lookalike can share the same body and specs, and what actually separates the two.