Watch this: Our first look at the new Galaxy S21 and S21 Plus
"We believe that the gradual removal of charger plugs and earphones from our in-box device packaging can help address sustainable consumption issues and remove any pressure that consumers may feel towards continually receiving unnecessary charger accessories with new phones," Patrick Chomet, head of customer experience at Samsung's mobile communications unit, said in a statement.
He noted that Samsung has been using standardized USB-C type charging ports since 2017, so older chargers will still be compatible with the S21 phones. The company also removed support for microSD cards, since none of the new models have the necessary slot.
Samsung also unveiled its wireless Galaxy Buds Pro at the event. These wireless earbuds cost $200 and are available now.