Samsung Galaxy Ring

Solid for resting HR and HRV trends but finger PPG trails Oura on sleep staging per an independent one-week head-to-head, and struggles to track rapid heart-rate swings during workouts.

HotHardware, wearing the ring alongside a OnePlus Watch 2, Galaxy Watch Ultra and Pixel Watch 3 for several days and nights, found the ring's data matched the smartwatch data to within about +/-10 percent across metrics; the sleep-vs-Oura gap is documented separately by Android Authority. HotHardware ↗

Delivers the core ring set (sleep, HR, HRV, SpO2, skin temperature, cycle, Energy Score) but reviewers call it thin, with no GPS, no ECG and blood-oxygen readings that vary with finger placement.

Engadget rated it 80/100, called it fairly basic at the moment, and noted blood oxygen levels varied wildly depending on which finger the ring was worn on; the ring's spec sheet confirms it has no ECG or GPS. Engadget ↗

Tests a genuine week when new, but owner reports document steep degradation, which drops its long-term reliability below the spec-sheet promise.

A one-year long-term review reported battery falling from about 7 days when new to roughly 5 days at 6 months and about 2 days after a year, a pattern corroborated by Android Authority's battery-drain report and multiple Samsung community and Reddit owner posts. TechGuySmartBuy one-year review ↗

One of its strongest points: it is among the lightest smart rings and reviewers repeatedly forget they are wearing it, including while sleeping.

Engadget said the ring, about 2.3 grams (the Grade 5 titanium ring is 2.3 to 3.0 grams by size per Samsung specs), is so light the reviewer barely feels it on their finger when trying to fall asleep. Engadget ↗

Excellent inside Samsung's world but full features need a Galaxy phone, and it does not work with iPhone at all, which limits it for an iOS-first coaching app.

Engadget notes the ring does not work with iPhones and that Energy Score, sleep tracking and Wellness Tips are based on Galaxy AI, requiring a Galaxy phone, the Samsung Health app and a Samsung account. Engadget ↗

The no-subscription model is a real advantage over Oura, and it now street-prices near $299, though a documented year-one battery cliff dents its long-term worth.

9to5Google reports the Galaxy Ring is regularly $299 in all colors and sizes in 2026, $100 off the $399 list price, and that Samsung charges no post-purchase subscription unlike rivals such as Oura. 9to5Google ↗