Battery life: 7 days Display: AMOLED Screen size: 0.86 X 0.58 inches Resolution: 326 PPI Built-in GPS: Yes Heart rate monitor: Yes SpO2 monitor: Yes ECG monitor: Yes Fitbit pay: Yes On-board music storage: No Weight: 0.98oz Size: 1.4 inches L x 0.89 inches W x 0.44 inches D
