This is the very low buget smartphone because it give more features at low rice .people who use jio sim and think to buy new phone for volte feature at low price then panasonic p77 is best choice for you because it come with Dual Sim, VoLTE, 4G, 3G, Wi-Fisupport and quad core 1 ghz processor 1gb ram, and 8 gb inbuilt but phone battery backup is less because it come with 2000mah battery .the pansonic p77 has 8 MP Rear+ 2 MP Front Camera. their 5 inch screen resolution is 720*1280so the phone is very low price phone phone price is 5899