One plus 5 is a great phone.being the first phone with 8 gb of ram and snap dragon 835 it is really very snappy and even smoothest working phone I have ever used.The speaker were awesome and it sdual camera allows us to snap great images.Very less companies provide such a grat phone in a low rate.But the question arises that is there a reason for not buying one plus 5.Yes, the phone is good for people using it on wifi but the people who travel and do not have access to wifi every time they have a big disadvantage because the speed on mobile data on this device is poor.I tried it personally, the speed of mobile data was slow but when I used the same sim on my moto g4 the net was working fine.I don’t know, it is possible that the problem will solve with new software update.Or if it is hardware problem the people who do not have access to wifi all the time should not buy the phone