The software giant is touting new dual-screen experiences for its office apps, as well as gaming and streaming, on brighter and larger displays. The old Duo had a 60Hz 8.1-inch screen while fully opened, while the new one has increased that to a 90Hz and 8.3-inches. The new device has also been updated with a triple lens camera on the back – a major omission from the first version – made up of an ultra-wide 16MP f/2.2 lens, a 12MP f/1.7 wide angle, and a 12MP f/2.4 telephoto lens. Why are folding phones of great interest currently ?