STMicroelectronics released wearable unit. It contains a lot of sensors. The data are sent to mobile phone through bluetooth. App is available on Apple Store? and Google Play?.
App is based on BlueST SDK, available on GitHub.

What contains this device:
STM32L151VEY6 ? 32-bit ultra-low-power MCU
LSM6DS3 ? 3D accelerometer + 3D gyroscope
LIS3MDL ? 3-axis magnetometer
LPS25HB ? MEMS pressure sensor
BlueNRG-MS ? BLE network processor
BALF-NRG-01D3 - 50 ? balun with integrated harmonic filter
STNS01 ? Li-Ion linear battery charger
STC3115 ? Fuel gauge IC
100 mAh Li-Ion battery included, UN38.3 tested and certified
Micro USB connector for recharging
SWD connector for debugging and programming capability

Another information: http://www.st.com/content/st_com/en/products/evaluation-tools/solution-evaluation-tools/sensor-solution-eval-boards/steval-wesu1.html?icmp=tt3606_gl_bn_may2016