Porodo Cristallo AP smartwatch features a durable TR90 case and a 1.43-inch AMOLED display with 466x466 resolution for vivid visuals. The long-lasting battery reaches up to 15 days. It supports Bluetooth calling, so you can make and receive calls from your wrist. The watch includes health monitoring, an activity tracker, 128MB flash memory, and fast charging. It is compatible with Android 5.0+ and iOS 9.0+.