The Dot displays information using 4 active dynamic Braille cells, and its users can select the speed at which the characters update. The Dot connects to a smartphone via Bluetooth (just like any other smartwatch) and can receive any text from any app or service (think Messenger, directions from Google Maps, etc.). Users can also send simple messages using its buttons on the side. The Dot also supports Open API, which means that anyone can develop or adapt apps for it.
Various digital devices for the blind have been around for some time now, but the vast majority of them use sound. This creates problems, because either a user has to plug in headphones and detach from surrounding sounds (that are vital to blind people), or make their information public. Also, existing digital Braille reading devices are mostly bulky and expensive – only about 5% of visually impaired people own one.
The Dot smartwatch has been in development for 3 years, and the company will finally start delivering its devices to some 140,000 backers (they also claim that Stevie Wonder is one of them). They plan to ship 100,000 watches in 2017, starting March, and the rest 40,000 next year. 1,000 units will be sold on retail in London for $320 too.