Samsung J8 infinity is a good device. I am using it from 2 months.Its performance is much better than other devices which comes in same price range. Lets see some features:
Network: 2g, 3g, 4g volte (This device is supports dual 4g sim but after latest update)
New release: It is new device of samsung launched in 2018.
Design:Its body is good and after touching it i feels good.It has weight but not too heavy.Its back is plane and little bit shine.But it looks bad from front because of its size.
Display: 6 inches big display but i am unhappy with it because combination of size and desing is not good.
OS: Oreo 8.0
Camera: Its camera quality is quite better than other famous devices.Its back camera
best performance i clicked many but good front camera is also well.( but i not get which expect from samsung.
Speaker: its speaker is working well gives loud sound.
Battery is also running well it gives you good battery backup full day non stop.