[8] The Z2 is widely considered to be the successor to the earlier D3 Plenue, upon which it improves in a number of ways, most notably of which is speed.
An Engadget reviewer called it “stunningly quick”, and proceeded to state that “the touch response was just as good as on our Galaxy S II.
In fact, that's indicative of the overall system.”[10] Additionally, the Z2 has received consistently favourable reviews at online stores such as Amazon.com and Advanced MP3 Players.
The Z2 features a 3.7-inch, Gorilla Glass-covered Super AMOLED touchscreen with pixel dimensions of 480×800.
Additionally, it supports external data storage via microSD transflash card up to 128 Gigabytes[6][11]