Carrier Compatibility: T-Mobile Network Connectivity: 4G LTE and 5G 6.7-inch Dynamic AMOLED display 4800mAh battery Samsung Galaxy S21 Plus 5G 128GB in Phantom Black. Compatible only with T-Mobile. Specification wise the phone carries a Snapdragon 888 chipset, 5G capability, 128GB storage, and a 4800mAh battery. The 6.7-inch Dynamic AMOLED display features an adaptive 120Hz refresh rate. There is a triple-camera setup with a 12MP main sensor on the back.