Need a small dual sim phone.
I want to get a dual sim mobile that has android and is capable of running WhatsApp video call, I have looked at a few but because the os is not late enough they will only do WhatsApp voice which defeats the object. I don't really want a huge phone so anything more towards the 4" size rather than 5". Also it must be able to have 2 sims with a separate sd card slot. Any suggestions gratefully received.