Yes, Gionee A1 Lite does have a fingerprint scanner sensor.
Yes, Gionee A1 Lite has 2 dedicated sim card slots and 1 dedicated memory card slot. So, you can use all of them at one go.
Yes, Gionee A1 Lite does have the fingerprint sensor. You can set up access for the fingerprint lock.
If you consider the price of the phone - and if you are looking at higher ram with great battery - Gionee A1 Lite is the ideal choice. However, we feel that below are the disadvantages of Gionee A1 Lite
Not Full HD Display The display of the phone is not Full HD. It is 720p. However, it does provide decent performance even under direct sunlight.
USB Type C Most companies are not adopting USB Type C which is not used in this phone.
Lack of Quick Charging The phone does not support fast charging. It take almost 130 minutes to fully charge the big battery.