Case Size: 41 mm
Material: Fiber-reinforced polymer
Band Material: Silicone
Display: 1.1-inch MIP LCD, 218 x 218 pixels
Processor: Custom Garmin processor
Operating System: Garmin OS
Connectivity: GPS, Bluetooth 5.0
Sensors: Heart Rate, Pulse Ox, Accelerometer, Gyroscope, Barometric Altimeter, Compass
Battery Life: Up to 14 days (smartwatch mode), up to 30 hours (GPS mode)
Water Resistance: 5 ATM (50 meters)
NFC: No

What's in the Box:
Garmin Forerunner 255S
Charging Cable
Documentation