The $99 Mio Link uses its optical sensor to track your heart rate.
Got a tattoo on your wrist? You could find it difficult to get an Apple Watch to track your heart rate. It's all about the way the ink blocks light from built-in sensors.
"Frame rate is more important than resolution," says Square Enix's Hajime Tabata.
Julius Genachowski talks with Larry Magid about E-Rate for schools and libraries and also fields questions on Net neutrality.
The Up3 is one of the smallest super-slim fitness bands around, but its lack of a display and limited heart rate tracking aren't worth the high price.
Is there room for a plain old fitness band with no screen in an age of smartwatches? Jawbone's new band has fantastic software, but its heart rate tracking's just not useful enough.
Fitbit's Charge HR adds heart-rate tracking to an already solid fitness band at a great price, but all the kinks don't feel fully ironed out yet.
Frame rate revealed, as development will be handled by an outside studio, according to sources.
The search giant's network would reportedly let customers pay only for the data they use and not a bulk rate.
Jawbone's new fitness bands are a lot slimmer, but there's a difference: one has heart rate, one doesn't. Neither has a screen. We try them on.