Don’t throw away your old phone box — you might need it in an emergency

Keeping a phone’s original box can be useful if the device is stolen, needs to be returned or is later sold. The box may contain the phone’s IMEI, which carriers can use to identify and block a lost or stolen handset.

Apple and Samsung require original packaging for some returns, though policies vary by retailer. The box may also include accessories useful to a new owner, provide packaging for shipping and potentially help resale, although there is no firm data on its effect on price.