Meet the Reverse Strap: a battery extender for your Apple Watch that improves its battery life by up to 125%. It has a 400 mA battery and a magnetic inductive charging cradle to get the job done. As you can see in the below video, the solution won’t be too bulky, so it won’t take away from your Apple Watch experience.
The Reverse Strap lets you use your smartwatch for longer. You can’t get it just yet, but you can always pre-order to show your support.