Yes, Gionee A1 Plus does have quick charging. It takes less than 2 hours to fully charge its huge 4550 mAh battery.
Yes, Gionee A1 Plus is a true 4G VoLTE mobile phone and you can use VoLTE without any problem.
Gionee A1 Plus is available in 2 colors - Black & Mocha Gold.
Yes, Gionee A1 Plus has a 3.5 mm headphone jack.