I was planed to use Vietnam prepaid SIM cards for travel in 3G network of Vietnam. It was successfully worked in Da Nang in HSPA+ network and voice call also excellent for me.
Camera was just OK for day light, Not enough to took a scene in night, Everybody may not accept noisy and blurred picture. Dynamic range seems not much better than modern smartphones.
Here I took some pictures in Da Nang of Vietnam. All pictures just resized to 1024px in long side, and nothing else affected.
Difference of Bright area to Dark (shadow) side seems not flatten as like a centry ago. It just Ok for day light but not much good enough to take a shot in less lights – from evening to night. I was good for snap shot while traveling anywhere for searching google map and taking pictures in one hand.
Durability is verified for me by dropping solid bottom, actually it was not my fault, by some aunty smashed my hand in Lotte Mart in Hanoi (South from Da Nang, about a hour by van). It was smashed to bottom, side of screen exactly, I was really surprised and Phone gone for unstable to cannot detect external SD. Just I have reboot it and it became normal. Nothing broken or scratched, just my protecting film saved real glass. Everything was OK.
It was enough good for me. Need some work to disable many services apps. Some system UI not so good for recognized (specially system max memory indicating while app task screen by long press of home button) but it is not much bad for me by this smartphone price.
It could be recommended by looking for around 100 USD budget 5.5″ HD display with durable chasis. But I strongly recommend to user may possible to understand cusomized recovery and SP-Flash program to flash some customizes.