Lyf water 4 is very good phone best thing about phone is its battery backup is very good with internet connection.it is a light weight phone it is very slim also.its price is also in the range of medium family.sound quality is also very good camera quality is also very good both front and rear camera with back flesh light.this is a 4g phone but not in both sim. no external memory card support there is inbuilt memory of 16 GB. over all this is a good phone in medium range,