Yes, Tecno i3 does have the front camera flash.
Tecno i3 standard box package includes Mobile Phone (with battery), USB Power Adapter, USB Cable, Free Screen Guard, Free Back Cover, Earphone, User Manual, Sim Ejector Pin and Warranty card.
Yes, you can use Jio sim card with Tecno i3 mobile phone. Tecno i3 is a true 4g mobile phone.
Tecno i3 has G-sensor, Proximity sensor and Ambient light sensor.