Sport smart watch with a 1.28-inch IPS full-round screen. - Model Name: Sport Smart Watch - CPU: Realtek8762C - Display: 1.28-inch IPS full-round screen - Battery: 400mAh - Compatibility: iOS 10.0 or later, Android 4.4 or later - Product Size: 50 x 50 x 14.5mm Thank you for viewing. I purchased this used at an auction, but I'm selling it because I didn't use it. The power turns on without any problems. Confirmed. Charger included. A screen protector is applied.