Razer Nabu Watch Full-featured digital chronograph-illuminated backlit display, countdown timers, Stopwatch, world time, alarm functions, auto Phone time sync and fast Bluetooth pairing ensures you're always on time, all the time. Discreet notifications via Secondary screen-stream notifications from your smartphone - calls, texts, emails, app alerts, and more - right to your wrist. Fitness + sleep Tracking- the Razer Nabu watch's in-built accelerometer and highly accurate algorithms log your daily steps, distance traveled, calories Burnt, hours slept and more - so you are always on top of your Health and fitness game.