Hi! I had a SAMSUNG GALAXY J1 ACE and use it for mor than 1 year ago. Now iam able to comment on it . First of all its battery life is very low. Secondly its dosent supprot 4g. Thirdly its RAM to less about 400 mb and we cannot play games like pokemon go and others games and its opareting system is old only only android. Kitkat ( 4.4.1) which not support meny applycations and games its one of bigges problums was that if we use it for a loung period first of all his hankes to android mobel and latters start getting hot and the erritets me alot this .sound this not high volume .its ROM is to low which there four we con not downlode asphalt 8 eair bone .