OP, seeing that you're dealing with electronics and especially smartphones, I have a suggestion for you.
Phones from Chinese companies can reach the highest standards phones from major companies have set but with a fraction of the price. In the past, I've paid other people (in BTC) to ship me phones from China becauss stores there wouldn't accept bitcoin. Have a look here
http://chinese-smartphones.com/ to get an idea of what I'm talking about.
Most of those deal online and you could easily become a reseller.