Your Samsung Galaxy Watch can estimate how much of your body is fat, muscle, and water in seconds. But not every number on the screen deserves the same amount of trust.
A 2025 peer-reviewed study comparing the Galaxy Watch5 with dual-energy X-ray absorptiometry (DXA) found strong group-level agreement in body fat percentage, but individual readings could still vary considerably. Its estimates of skeletal-muscle percentage showed substantially weaker agreement with DXA.
That distinction matters as Samsung puts more health information on users’ wrists. Body-composition measurements may provide useful general information, but research suggests…
Read the full article at TECHREPUBLIC.COM
