Yes I can say I have an SD card on my phone and it's amazing works like a charm save all my pics there, when it comes to lagg, wtf are you talking about, had the phone now for 3 weeks it's smooth as butter and I have some baby as games loaded on it plus I always use the phone at 120hz, it's honestly been amazing so far for the exception of the vibrator, which is trash, and sometimes dolby Atmos stops working and I have to restart the phone, everything is amazing