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Dot-smart bracelet is a fashion accessory, which is also a watch, a portable battery and a torch.
As a watch: Touching the surface of the bracelet, you can see tiny sports of light. If you shake it(the acceleration sensor), the time will show up on the Flexible OLED Display.
As a portable battery: It could charge the battery by electromagnetic induction when you take it off and unfold it. The electricity comes from the Nanosolar Powersheet.
As a torch: By touching the surface, the users can turn on the side LED lights as a dim light. The bracelet could also be rolled into a torch.