Yes, Tecno i3 is a 4g mobile phone.
Yes, Tecno i3 Pro is a dual sim mobile phone.
Tecno i3 and Tecno i3 Pro are very different. The main differences are as below:
01) Tecno i3 has 2GB RAM while Tecno i3 Pro has 3GB RAM.
02) Tecno i3 does not have fingerprint sensor while Tecno i3 Pro has fingerprint sensor.
Tecno i3 Pro comes in 2 different colors - Champagne Gold and Space Grey.