Hi friends I use it before last month. I like it very much .
watch like strap. its comfortable to wear . accurate heart rate monitior.
it has automatic heart rate monitoring every 15 mintues .
Basuc notifications like whatsapp, facebook, sms, call and other popular apps available.
sleep monitoring. syncing fastly. alarms can be set ( 2)
it bettery performance long life.
Micro usb port for charging under rubbet flab for dust and water prof .
Run mode monitiors heart rate continuously .
overall opinion :
absolutley best fit for fitness purpose and alarm but not all recommended for notification