Yes, Realme 1 supports VoLTE in both the SIM slot but there is one catch that you cannot use both the SIM on VoLTE at the same time ..If SIM 1 is on VoLTE then the other SIM will be on 3G network.
Check the complete specs here :- Realme 1
Yes, Realme 1 supports OTG. USB OTG or USB On-The-Go is one of the most recent technologies that allows you to connect your pen drives and in some cases hard disks to your smartphones and tablets. It has a cable and through that cable, you can directly view and use your pen drive in your smartphones.
You can check the specs here:
You can also check the complete specs here: Realme 1
Ram Niwas Goel
Nokia has made its comeback with a bang and it rules the INR 25000 segment with the Nokia 8. The starting premium range phone offers you amazing features and speed. Let us take a deep dive on the key highlights of the Nokia 8:
You can check the complete specs for Nokia 8 here: Nokia 8