Oppo F21s Pro comes with 6.43 inches Full HD+ AMOLED screen. It has a left punch-hole front camera design. The back camera is of triple 64+2+2 MP with PDAF, LED flash, f/1.7 aperture, microscope, depth sensor, etc. features and Full HD video recording option. The front camera is of 32 MP. Oppo F21s Pro comes with 4500 mAh battery with 33W fast charging. It has 8 GB RAM, up to 2.4 GHz octa-core CPU and Adreno 610 GPU. It is powered by a Qualcomm Snapdragon 680 4G (6 nm) chipset. The device comes with 128 GB internal storage and dedicated MicroSD slot. There is an optical in-display fingerprint sensor in this phone.
Among other features, there is Dual SIM, face unlock, USB Type-C etc.