Fingerprint sensor on Tecno i3 Pro is located on the front of the phone. Home button doubles as a fingerprint sensor.
Yes, Tecno i3 is a 4g mobile phone.
Yes, Tecno i3 Pro has a front camera flash. In addition, you can also use the display as flash.
Yes, Tecno i3 Pro has 3.5 mm headphone jack slot.
Yes, Tecno i3 Pro is a dual sim mobile phone.