Two major drawbacks of this Samsung mobile are
It’s uses internal memory everywhere. you cannot directly save WhatsApp or other downloaded files directly to External memory card. So every time 16 GB memory is not enough for even for short time uses.
Both SiM slot supports 4G VoLTE but not working at a time. you force to use only one sim on 4G signal. And 2nd directly goes to 2G even not 3G.
Other wise all fuctions and features are wonderful at this price.