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.
Tecno i3 comes in 2 colors - Champagne Gold and Space Gray.
No. Tecno i3 comes with in-built battery.
Tecno i3 comes with the latest Android 7.0 Nougat OS. In future, you can update phone OS if the new update gets released from the company.