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Last updated: July 23, 2026, 8:30 PM ET

Health Tech

Scientists have developed a handheld device that can measure your body's fat-burning state. The breathalyzer works by detecting acetone levels in your breath, indicating ketosis.

Wearables

Samsung has extended software support for its Galaxy Watch 9 and Watch Ultra 2 to five major Wear OS upgrades. This is an increase from the four upgrades offered on prior models.