Redmi K20 Pro

Android 9.0 (Pie); MIUI 10;
6.39 inches, 100.2 cm2 (~86.1% screen-to-body ratio)
Qualcomm SDM855 Snapdragon 855 (7 nm)
256 GB, 8 GB RAM or 128 GB, 6/8 GB RAM or 64 GB, 6 GB RAM

Redmi K20

Android 9.0 (Pie); MIUI 10;
6.39 inches, 100.2 cm2 (~86.1% screen-to-body ratio)
Qualcomm SDM730 Snapdragon 730 (8 nm)
256 GB, 8 GB RAM or 64/128 GB, 6 GB RAM

Redmi 7A

Android v9.0 (Pie);
5.45 inches, 13.84 cm (74.42 % Screen To Body Ratio)
Qualcomm Snapdragon 439
16 GB, 2 GB RAM

Redmi Y3

Android 9.0 (Pie); MIUI 9;
6.26 inches, 97.8 cm2 (~81.5% screen-to-body ratio)
Qualcomm SDM632 Snapdragon 632 (14 nm)
64 GB, 4 GB RAM or 32 GB, 3 GB RAM