Highlighted by a large 2.2-inch, 240x320 high resolution color screen with color graphics that help you quickly and easily identify specific data fields. When paired with an iOS or Android handheld through the free Lezyne Ally V2 app, the device provides turn-by-turn navigation, Strava Live Segments and phone notifications (incoming calls, texts and message app notifications). Additionally, the GPS device can be instantly customized through the app and it has on-screen preloaded maps, provides turn-by-turn navigation and off-line navigation. Further data can be viewed and recorded when paired with ANT+™ or Bluetooth Smart enabled power meters, heart rate monitors and speed/cadence sensors. The device can also display electronic drivetrain info when paired with compatible shifting systems. And enable Lezyne Track to let friends and family follow along in real-time while out on a ride. Data recording is highly accurate through the use of GPS/GLONASS, a barometer and an integrated accelerometer. It has a class leading runtime of 32 hours and a whole lot more.