Compatible 20mm:
For COLMI i28 Ultra
For COLMI P76
For COLMI C60
For COLMI C61
For COLMI C80
For COLMI P73
For COLMI P30
For COLMI P28 Plus
For COLMI P20 Plus 
For COLMI P12
For COLMI P10
For COLMI P9
For COLMI P8
For COLMI P8 Pro
For COLMI P8 SE
For COLMI P8 Plus
For COLMI V31
For COLMI V23
For COLMI V23 Pro
For COLMI Land 1
For COLMI Land 2S
For COLMI I31
For COLMI I20
Xiaomi S1 Active
Compatible 22mm:
For COLMI C8 Max
For COLMI V75 GPS
For COLMI V73
For COLMI M42
For COLMI M41
For COLMI M40
For COLMI i30
For COLMI i11
For COLMI P71
For COLMI P68
For COLMI P60
For COLMI C81
For COLMI C63
For COLMI V68
For COLMI V70
For COLMI P81
For COLMI P82
For COLMI P86
2.Package:just the band ,no the watch