Hello, Dear, Professional Redmi 4a is very unique phone. After the success of Redmi note 4, New redmi 4 A is lunching a budget smart phone .4A Budget smartphone is quite affordable with the best feature, This budget smartphone has a 5inch 1ps LCD 1280* 720 screen, which has hybrid dual sim card slot in this phone you get the 1.4 GHZ Quad-core. this is best feature and 425 processor and the Adreno 308 GPU for graphics. and input storage with 2gB ram in in phone is 16 GB, which an increase up to 128 GB Via Micro SD card so very Smart Phone to all person. thank you.