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Solid-state batteries, as the name suggests, replace the liquid electrolyte with a solid one.

This results in a higher energy density and faster charging compared to standard lithium-ion.

Samsung Galaxy Ring

Solid-state batteries aren’t exactly new for Samsung, either.

The company allegedly wants to improve that to 360Wh/L for the Galaxy Ring 2.

Samsung Galaxy Ring

Galaxy Ring vs. Oura Ring

Galaxy S25 128GB (Unlocked)

SAMSUNG Galaxy S25 Cell…

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Samsung Galaxy S25 Silver…

Samsung Galaxy Ring

Hands-on with the RingConn Gen 2 smart ring

Close-up of three Samsung Galaxy Rings shown in a users hand in black, silver and gold next to a deals badge that says �Act fast!�

The Circular Ring 2, up close, with half of the device slightly obstructed by orange glass in the foreground

Close-up of the Ringconn Gen 2 Air smart ring on a user�s index finger

Close-up photo of the black version of Samsung�s Galaxy Ring held between thumb and index finger in front of a garden.

Fitbit Sense 2 on a person�s wrist

a photo of the Apple Watch 10 and the Oura Ring Generation 3

The Amazfit Bip 6 smartwatch photographed in front of a blue background

Close-up of the Garmin Vivoactive 6 smartwatch in green

Switch 2 console and accessories

iPhone 17 Pro case renders

NYTimes Connections

Fire TV interface on the Fire TV Stick 4K (2nd gen)

A person holding a Nintendo Switch 2 playing Mario Kart World

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Apple Watch Series 10 lowest price