But after two years, the girls may have to charge their golden rings every six hours. After three years, the batteries will probably be kaput. After five years, they will have spent $350 for the Oura ...

Oura Ring 4 users report shorter battery life. The claims come a year after its debut. Oura seems to be quickly responding to this issue. When Oura unveiled its fourth-generation smart ring last ...

Grepow, a battery manufacturer, has announced that it has found a way to fit a silicon-carbon anode battery in smart rings and wearables. This tech offers up to 30% more capacity in the same space ...

The battery in my two-year-old first-gen Pixel Watch generally—unless I use GPS and/or LTE data services heavily—lasts 24 hours-plus until it hits the 15%-left Battery Saver threshold. And because ...

Two consecutive smart ring generations may look the same from the outside. But delve under the surface and differences become ...

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