Iphone 4 16gb boxed factory unlocked any network +

hiya have ma iphone 4 16gb factory unlock by apple. so any network,. have tried all networks and they all work fine,.. phone is in gd condition, screen protector on from new. but has little blue mark on screen. cant really notice jst being honest. back has scratches too. has lots of apps games installed. over 30. comes with box apple charger the expensive one and also the synx cable. many thanks...