Fitbit Versa 4 Fitness Smartwatch with Daily Readiness, GPS, 24/7 Heart Rate, 40+ Exercise Modes, Sleep Tracking and more, Waterfall Blue/Platinum, One Size (S & L Bands Included) New - Opened Box No scratches, never used Was a gift but I have an Apple Watch Fitbit Versa 4 Silicon Band Color: Waterfall Blue/Platinum Screen Size: 1.34 Inches Activity Tracker, GPS, Sleep Monitor, Stress Tracking, Heart Rate Monitor, Water Resistant, Alaram Clock, Notifications, Phone Call, Text Messaging, BluetoothActivity Tracker, GPS, Sleep Monitor, Stress Tracking, Heart Rate Monitor, Water Resistant, Alaram Clock, Notifications, Phone Call, Text Messaging, Bluetooth Compatible Devices: Smartphone Get inspired and stay accountable with Versa 4 + Premium - learn when to work out or recover, see real-time stats during exercise and find new ways to keep your routine fresh and fun.Operating temperature: -14° to 113°F. Radio transceiver: Bluetooth 5.0.Maximum operating altitude: 28,000 feet (8,534 m). Built for better fitness results: Daily Readiness Score(1), built-in GPS and workout intensity map, Active Zone Minutes, all-day activity tracking and 24/7 heart rate, 40+ exercise modes and automatic exercise tracking, water resistant to 50 meters Tools to measure and improve sleep quality: personalized Sleep Profile(1), daily sleep stages & Sleep Score, smart wake alarm and do not disturb mode. Compatibility-Apple iOS 15 or higher, Android OS 9 or higher