The new Alcatel U5 HD sports a 5-inch display with HD (720p) resolution, an 8-megapixel rear-facing camera, and a secondary 5-megapixel selfie snapper. The original model has a 5-inch display with 480 x 854 pixels resolution, and much smaller 5MP and 2MP cameras. Otherwise, much of the specs inside are similar - the same MediaTek MT6737 processor, coupled with 1GB RAM and 8GB expandable storage. Moreover, the U5 HD is powered by a slightly 2,200 mAh battery.
The Alcatel U5 HD is most commonly compared with these phones: