Everything you need to know about photoplethysmography (PPG), the technology behind heart rate measurements in fitness ...

Because it uses your finger's pulse to track your heart rate rather than your wrist like most other fitness wearables, you end up getting much more direct and accurate metric tracking altogether ...

Feature-wise, it ticks most boxes, including the usual fitness and sleep-tracking skills, along with a pulse oximeter, stress tracker, and Garmin’s body battery energy monitor. The addition of ...

Which is the more accurate fitness tracking brand — Fitbit vs Amazfit? I pitted the Sense 2 vs Active 2 to find out. Which affordable smartwatch is the more accurate fitness and health tracker?

We've been testing the best smartwatches for over a decade, witnessing their evolution from simple smartphone companions to full-fledged wellness-monitoring, fitness ... tracking, a new Loss of ...

In an effort to break this black box and build upon years worth of EEG hacks, [Curt White] is hacking a fitness tracker for EEG analysis for his entry into the Hackaday Prize. The hardware in ...

The Circular Ring 2 may get blood pressure and glucose level monitoring before Samsung and Oura's smart rings.

[Mikhail] sent us a teaser video for a hack he’d done (embedded below). He takes a Bluetooth LE fitness tracker dongle and reflashes it spit out the raw accelerometer data and trigger events.

Fitness trackers seem to work like magic ... Other devices measure something called pulse wave time, which is essentially changes in your blood pressure over time – but it won’t tell you ...