Fitness Trackers Are a Subpoena Away: EFF Finds Only Apple Encrypts Health Data

The Oura Ring on your finger is logging your body temperature as you sleep. The Garmin on your wrist is recording every GPS coordinate of your morning run. The Whoop band around your forearm is reading your heart rate at 2 a.m. That data is intimate, continuous - and for the roughly 40 percent of Americans who own a consumer wearable health device, almost entirely unprotected by federal law when law enforcement comes asking, according to EFF's July 2026 investigation.