Category Archives: fitness tracker

Reliability Check: Consumer and Research-Grade Wrist-Worn Heart Rate Monitors

Wearables are ubiquitous in today’s society. Such devices have evolved in their capabilities from step counters to devices that measure calories burnt, sleep, and heart rate. It’s pretty common to meet people using a wearable or two to track their fitness goals. However, a big question remains unanswered. How accurate …read more

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Posted in fitbit, fitness tracker, heart monitor, heart rate, Medical hacks, wearable, wearable hacks | Leave a comment

Pavlok Gets a Literally Shocking Teardown

Apparently, there is a wrist-mounted device that delivers electric shocks to the wearer when it receives the appropriate command over Bluetooth. No, it’s not part of some kind of house arrest program. If you can believe it, the gadget is actually intended to help break bad habits or wake up …read more

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Posted in fitness tracker, high voltage, nRF52832, smartwatch, teardown, wearable, wearable hacks | Leave a comment

Fitness Trackers Don’t Have To Be Proprietary

Fitness trackers have become a popular piece of consumer electronic equipment, with a range of models from a variety of manufacturers. Many of these commercial offerings, however, leave the consumer with the prospect of their data being drawn off to a cloud server and sold to the highest bidder, trading …read more

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Posted in fitness tracker, Medical hacks, open source, simblee | Leave a comment