Not only the performance raised by iPad 2 WiFi + 3G as a competitiveness, but also changes in design that can enchant the public. This striking change from the iPad lies in the concave design on the back. In addition, the materials used are also slightly different to support the grip comfort. Unlike previous generations, this iPad only pinned a few hard buttons like the home button, power, and volume buttons as well as the screen's gravity sensor lock button.