Yes, Nokia 3 does support OTG.
Yes, Nokia 3 is a 4G mobile phone.
Nokia 3 does have 2GB RAM.
No. Nokia 3 does not have the inbuilt fast charging. The supplied charger is of 1A output. If you want fast charging for Nokia 3 - you can buy Fast Charger for Nokia 3.
In our opinion, the Nokia 3 is best suited for first-time smartphone buyers and those looking for some experience with Android in general.
It may look like one of the best cheap phones on the market but the Nokia 3 is style over substance, struggling with long load times and poor battery life.