In this video I'm building an Arduino Heart Rate Monitor that is housed in a toy handle in the style of the Star Trek Tricoder. The device uses the PulseSensor with an Arduino Pro Mini and an OLED ...

After testing the best Android smartwatches over the course of a year, I found top picks from Samsung, Google and more.

6.9-Inch Dynamic AMOLED Display and Premium Design The Samsung Galaxy S26 Ultra features a 6.9-inch Dynamic AMOLED display with vibrant colour accuracy and smooth motion. Improved brightness ensures ...

Last year, we brought you a story about the BhangmeterV2, an internet-of-things nuclear war monitor. With a cold-war-era ...

Primary camera 13 MP Camera 13 MP + 2 MP Dual Camera with LED Flash Front Camera 5 MP Camera 8 MP Camera with LED Flash ...

Amazfit T-Rex Ultra 2 Launched With BioTracker 6.0 Sensor, 1.5-Inch AMOLED Display Amazfit T-Rex Ultra 2 is claimed to offer up to 30 days of battery life with regular use, or up to 10 days with the ...