HP Y8Q02AA Watchbands Size/Dimensions: 9.64 x 1.89 x 0.55 Color: Silver smartwatch with gray lizard leather pattern strap Features: Buttons: Inlaid button that controls settings and 10 modes. Pusher to control the analog hands. Batter: Rechargeable using custom-fit charger and USB port. Battery life: Up to 5 days (battery duration may vary based on usage). Connectivity: Wireless Bluetooth Compatible operating systems: Apple iOS 8 or later, and Android 4.4 or later. Compatibility: Compatible with Apple and Android smartphones running Apple iOS 8 or Android 4.4 and later operating systems. Compatible smartphone must be within unhindered range to maintain connection and wireless updates.