For many years people who are blind have been able to tell the time using a tactile watch that simulated the standard 12 hour clock with two hands. More recently some have turned to using their mobile device to announce the time. But technology has moved on. South Korean developer, Dot, has produced a Braille smartwatch. It displays information using active Braille cells and it connects to a smartphone via Bluetooth (just like other smartwatches) and can receive any text from any app or service. Find out more about this interesting device, which is also a good example of how technology is changing lives. The link also has a video that shows how the Braille cells activate.