There's two from Mio - the Alpha, which is an hrm with conventional appearance (as linked above by FF), and the Link, which is just a bracelet with the sensor that streams the data, nothing more.
My impression is that with the Link any recording is done by the receiving device, ie, if I use it with a Forerunner, the Forerunner will do the legwork for saving the stats such as average, peak, carving it up into lap segments and so on.
It's the Link that I like the idea of. I don't need another hrm but an alternative to a chest strap that works with existing kit, well, I might possibly treat myself.
If I understand correctly, this new Mio optical hrm does away with the need for a chest strap, it measures your pulse on the wrist instead. No readout on the device but it uses Ant+ so will work with, eg, the FR220.
DC Rainmaker is impressed. Looks good to me and the idea of going for a trot without that pesky chest strap appeals. Price looks fair too. Ships from 6 May and as it 'appens I might have a birthday about then. Tempted.
Anyone else clocked this thing, or even better tried something similar?