This phone is 4g support. but when you using a4g sim then the another sim card not takeing 4g mode. Sound quality of this phone is very poor and the display quality is not for suitable. Lava a 76+ is not looking good from any side. I wouldn’t give any range to this phone, because from the value of money- the features of this phone is not enough. When it comes about perfomence, I found it is hanging sometimes, due to 1gb ram with 1.5 ghz processer.And it takes much more time to open an app. About the batterylife, it has relevant. you can buy it but if you are a goog batterylife then don’t go for it . After full charging the battery is die 2 or 3 hrs. It getting only 1850 mah battery. Lava a 76+ takes 4 hrs. to full charge. It lets down. This is why it is not to buy.