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A Samsung Galaxy Ring rests in its open clamshell charging case.

Credit: Kaitlyn Cimino / Android Authority

One of the most attractive features of a smart ring is the potential for multi-day battery life. Unlike wrist-based wearables, which often tout power-draining displays, some leading smart rings can stretch battery life to nearly a week between charges. Find out how the brand-new Samsung Galaxy Ring performs and what to expect from the device’s battery.

Samsung Galaxy Ring battery specs

Samsung Galaxy Ring
Ring battery 18mAh (size 5) – 23.5mAh (size 13)
Up to 7 days
40% in 30 minutes
Charging case 361mAh
1.5x ring capacity

It’s a feat in itself that a battery can be squeezed into such tiny real estate. Fortunately, Samsung didn’t just settle for the bare minimum. Depending on which size ring you choose, the device will pack between an 18 and 23.4mAh battery cell. According to the company, this should power the ring for up to seven days, though smaller rings may land closer to six days of use between charges.