Six Wake Up Modes - Use zap, beep, vibration, or a combo of all three.
Use just the vibration as a silent alarm clock
Heavy sleeper? Enable the zap. If the vibration doesn't wake you up, the zap will -- Guaranteed.
Jumping Jack Mode - Set this mode so the only way to turn off the alarm is to get out of bed and do jumping jacks!
Sleep Tracking lets you know the quality of your sleep and enable light-sleep alarms.