Lava Z81 has display Size 5.7", operating system Android 8.1. The device has ram 3 GB too, card support is microSD, up to 128 GB (dedicated slot), it has 32 GB, 3 GB RAM or 16 GB, 2 GB RAM hard disk. Back camera 13 MP is awesome, front camera 13 MP is also not bad. Z81 has power storage, . Device status is Available