Yes, Gionee A1 Lite does have a memory card slot. You can use MicroSD Card of up to 256GB capacity.
No. Gionee A1 Lite does not have dual camera.
No. During our review did not find any major heating issue. However, since the mobile phone is made of Alluminimum Alloy body and has got huge 4000 mAh battery - you may notice some heating issue while charging.
No. Gionee A1 Lite does not have LED notification light.