Look and feel:-
1) slim body with 5.0 inch 720p super AMOLED display
2) J2 looks similar from the front to most recent Samsung phone, with familiar physical Home key at the bottom flanked by capacitive keys.
3) The back of the phone, however is all new and unlike any other Samsung phone.
Specification and features:-
1) Network
a) Technology- GSM/HSPA/LTE
2) Body
a) Dimensions- 142.4x71.1x8mm
b) weight- 138g
c) sim- Dual sim slots
Features:-
a) sensor- Accelerometer, Proximity
b) Messaging - SMS, MMS, email and push mail
c) Browser- HTML
d) camera- 8 mp back and 5mp front
Performance:-
1) Memory
a) card slot- microSd up to 128 gb( dedicated. Slots)
b) internal- 8 GB With 1.5 GB RAM
2) Wifi- wifi 820.11 b/g/n.wifi direct hotspot
3) Bluetooth- v41 .A2 DP, LE
4) Radio
5) USB- micro USB v 2.0
Battery:-
a) removable LI-ion 2600 mAh battery
b) talk time - up to 14 hr( 3g)
c) Music Play- up to 54 hr
Platform:-
a) OS - Android os, v6.0.1(Marshmallow)
b) CPU- quad core 1.5 GHz Cortex-A7
Overall
Phone is less with modern features by my personal experience its is a best phone which is affordable.