1) In design the samsung galexy j2 is very similer to old samsung phones, design is not really good, samsung j2 ace is a slim device and it has a plastic back cover which is like leather,
2) samsung galexy j2ace has a front LED flash, it has samsung UDS mode, it support Voice over LTE( VoLTE), j2 ace has 1.4 GHz quad core processor with 1.5GB RAM AND 8Gb internal storage with TST( TURBO SPEED TECHNOLOGY) which gives you a very good multitasking experience,
3) j2 ace has 5.0 qHD TFT display( it is not a SAMOLED DISPLAY -so it cant give u a very good quality like SAMOLED DISPLAY but it is no such a bad display)
4) samsung galexy j2 ace has a 2600mAh removeble battery, which dose not support fast charging
5) CAMERA-J2ACE HAS A 8MP AUTO FOCUS REAR CAMERA WITH FLASH LIGHT AND IT ALSO HAS A FRONT 5mp front camera with flash, SO THAT U CAN TAKE GOOD QUALITY PICTURES,
6) J2ACE IS RUNNING ON ANDROID V6.0( Marshmallow) Overall j2 ace is a good budget phone from samsung, if you are looking for a budjet phone you have to cheak this out THANKS FOR READING