In September 2019 Nubia unveiled a smartband that turns into a smartphone - with a foldable OLED display. Nubia said it will launch its Alpha foldable smartband by the end of 2018. This did not happen, but at MWC 2019 the company demonstrated the device again - and announced a new release date and prices.
The Nubia Alpha will start shipping in April 2019 in the US and Europe - but only the Bluetooth variant. The cost will be around $500. Nubia will also release an eSIM device - which will cost $624 and will launch in Q3 2019.
The Nubia Alpha uses a 4" 192x960 foldable AMOLED display wrapped around the smartwatch bands. The producer of this OLED display is China-based Visionox.