The Reserve Charging Strap is an exceptionally useful and highly innovative reserve strap that is designed to make it easier than ever for you to extend and elevate the battery capacity of your Apple Watch. Indeed the Reserve Strap is more than capable of increasing your Apple Watch's battery life by 2.7, meaning it essentially adds up to 30 additional hours of use.
This particular reserve strap stays true to Apple's watch band design guidelines, so you know it's designed specifically for the Apple Watch. It comes fully equipped with lithium polymer cells as well as an extremely handy micro USB charging port and LED charge status indicator that work to put control in your hands.
Convenient and stylish, the reserve strap makes for a great purchase for any Apple Watch user looking for more battery life.