3. OnePlus 3T
IM Score: 14
This may come as a surprise for the people not familiar with OnePlus smartphones, but they are gaining some traction. 3T that ranks 3rd on our list of best smartphones with Nano SIM card slots is one of the rare phones that were recommended by all our sources, so let’s check out what’s so good about it. First, the specs are off the charts. This 5.5 inches display smartphone has an Octa-core processor, 6GB of RAM and 12MP camera on both rear and front. There is not memory card slot, but I doubt you really need any since the storage capacity is 128GB. You do get 2 Nano-SIM card slots, but one will have to be on standby. There are lots of pros about this smartphone including its great battery, while the cons include poor speakers and not enough upgrades to justify the price compared to OnePlus 3 model.
