Design and Build
The Celkon A21 is wrapped in a simplistic design, measuring 124.8 x 66.1 x 10.8 mm and weighing 115.3 grams. This compact form makes it comfortable to hold and carry, appealing to users who favor a smaller device footprint. Available in black, blue, and red, the phone's plastic body reflects standard design conventions of its era, emphasizing practicality over premium aesthetics. The 4.0-inch TFT display with a resolution of 320 x 480 pixels results in a modest ~144 ppi density, offering basic clarity suitable for standard app navigation and call functions but falling short for high-definition media consumption.