Stay connected with the Apple Watch SE 44mm. Featuring a built-in accelerometer, gyroscope and GPS, you can measure your workouts and track your progress. Keep tabs on your heart rate with the ECG app. The 40mm watch also offers up to 18 hours of battery life. ROM : 32GB RAM : 1GB DESIPLAY : 1.7 inches SIZE : 44 M BATTERY : Li-Ion 296 mAh