An upgraded version of Alcatel's Idol 4S smartphone will soon be available with Windows 10 Mobile in the US. T-Mobile will be stocking the unique handset, which comes with a Snapdragon 820 processor (a marked improvement over its Android predecessor), 4GB of RAM and 64GB of internal storage. You'll be controlling Microsoft's colorful software on a 5.5-inch, 1080p display, which can easily turn into a desktop-lite experience thanks to Continuum. The fingerprint sensor on the back, meanwhile, works with Windows Hello, giving you secure unlocks. Otherwise, it's an attractive but unremarkable device to showcase the flagging mobile OS.