Gionee A1 Plus weight is 226 grams. It is mostly because of it's huge 6-Inch display size and humoungous 4550 mAh battery.
Yes, Gionee A1 Plus has a 3.5 mm headphone jack.
Yes, Gionee A1 Plus does have a fingerprint sensor.
No. Gionee A1 Plus is not a water-resistant phone.
Gionee A1 Plus has dual sim card slot of different size. You can use one micro sized sim card and another nano size sim card in this phone.
The phone is very nice especially, if you are looking at bigger battery and large display. There is slight issue of heating while charging. Else the phone is very good for daily usage. I am very happy with my purchase at Onlymobiles.