Bluetooth: Connects to your 5.0 Bluetooth-compatible device. Processor: S4 with 64-bit dual-core processor (up to 2x faster than S3 processor). Spec: A LTPO OLED Retina display with Force Touch and 16GB storage capacity. Features: ECG, water resistant to 50M, optical heart censor, accelerometer and gyroscope. Colours: Choose from Space Grey, Gold or Silver. Apple watch: Get a refurbished Apple Watch Series 4! | Apple Watch Series 4 40mm or 44mm - Silver | Wowcher