It happened at the T-Mobile store on the 3600 block of Aramingo Avenue back on October 6.
Click here to watch the surveiillance video
Surveillance video captured the suspect walking into the store shortly before 9 p.m.
He can be seen ripping several cell phones and tablets right from the display shelf and placing them into a red plastic bag before casually walking out the front door.
The stolen electronics are valued at $4,640 dollars.
Police describe the suspect as a black male, 6'0" tall in his mid-20s. He was wearing a blue hooded sweatshirt, blue jeans and white sneakers.
If you recognize this thief, call police at 215.686.TIPS (8477) or text a tip to PPD TIP (773847).