Kardia looks interesting - all I have is an AliExpress BPM and an Apple Watch, so I might look at one. Although this rang alarm bells:
The 6-lead one touts in the US (which makes sense):
CONNECTIVITY
Bluetooth Low Energy technology
1m wireless range
Whereas the
local agent says:
Proprietary technology that converts electrical impulses from fingertips into ultrasound signals transmitted to your mobile’s microphone.
Maybe they just dumbed it down to boomerspeak? Or maybe the single sensor model is via audio? Anyway, NZ Agent pricing looks stupid - dearer for the single than the US pricing for the 6-lead model.