Case Size: 42.3 mm
Material: Fiber-reinforced polymer
Band Material: Silicone
Display: 1.2-inch MIP LCD, 240 x 240 pixels
Processor: Custom Garmin processor
Operating System: Garmin OS
Connectivity: GPS, Bluetooth 4.2
Sensors: Heart Rate, Pulse Ox, Accelerometer, Gyroscope, Barometric Altimeter
Music Storage: Up to 500 songs
Battery Life: Up to 7 days (smartwatch mode), up to 6 hours (GPS mode with music)
Water Resistance: 5 ATM (50 meters)
NFC: No
Storage: 3.5 GB for music and apps

What's in the Box:
Garmin Forerunner 245 Music
Charging Cable
Documentation