The Ollee Watch features an ARM Cortex-M4/M0+ low-power processor with support for Bluetooth Low Energy and a programmable NTAG213 NFC tag (although this is said to only be compatible with the F-91W ...
This is made possible with Pulse-Fi, a system recently unveiled by researchers at the University of California (UC), Santa Cruz. By turning ordinary Wi-Fi signals into a health sensor, Pulse-Fi can ...