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EFF Privacy Alert: Most Smart Fitness Devices Lack End-to-End Encryption and Transparency

Marty S.

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Jul 31, 2026

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🔬 Health & Fitness Research

Apple Watch is the only major wearable with end-to-end encrypted health data; Garmin, Whoop, and Oura Ring all store yours company-readable on their servers. If privacy is part of your buying decision, that gap just became your deciding factor.

Marty’s Take:

Here’s the part EFF’s report undersells: encryption doesn’t matter if you never check who’s decrypting your data before you buy. Most shoppers pick a Garmin Fenix 8 Pro or Whoop Band on battery life and accuracy alone, never reading a privacy policy. Before your next purchase, run it against our fitness tracker buying guide and treat data handling as a spec, not an afterthought.

Shop mentioned gear: Apple Watch | Oura Ring | Whoop | Garmin

Source: CNET

Apple Garmin Oura Smartwatches Whoop

Apple, Garmin, Oura, Smartwatches, Whoop

Marty S.

Marty is a contributor at Fitness Tech Trends, focused on helping readers cut through the noise and make informed decisions about fitness technology. He dives deep into product comparisons, analyzes features that actually matter, and breaks down technical specs into practical insights. Whether readers are choosing between heart rate monitors, deciding on recovery tools, or figuring out which smartwatch fits their training style, Marty aims to provide straightforward, no-hype guidance. When he’s not researching the latest gear, he’s probably testing theories about what makes certain products stick while others fade into the gadget graveyard.

EFF Privacy Alert: Most Smart Fitness Devices Lack End-to-End Encryption and Transparency

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