The Lenovo A390 is a budget smartphone. The phone has a sturdy look and is built using plastic. The dimensions of the phone are 125.6 x 64 x 10.1 mm (4.94 x 2.52 x 0.40 in) and it weighs just about 131 grams. The device has three capacitive buttons below the screen. The phone has a 4-inch TFT capacitive touchscreen with a resolution of 800X480 with a pixel density of 233ppi. The phone runs on Android v4.0.4 (Ice Cream Sandwich) accompanied by Lenovo's custom UI. The phone comes with a 1 GHz dual-core
MediaTek processor with 512 MB of RAM, which is decent and similar to what other mobiles in this category come with.