The Realme C21 was announced in 2021, March 05 With 6.5 inches, 102.0 cm2 (~80.8% screen-to-body ratio) IPS LCD, 400 nits (typ), Powered by MediaTek MT6765G Helio G35 (12 nm) and running Android 10, Realme UI, the device delivered smooth performance and multitasking capabilities. while the Li-Po 5000 mAh, non-removable ensured long-lasting usage.