YI M1 has a Micro Four Thirds lens mount and currently there are 119 native lenses available for this mount.
YI M1 doesn't have a sensor based image stabilization system but 32 of these lenses already comes with optical image stabilization.
Since YI M1 has a Four Thirds sensor, it has a focal length multiplier of 2x so you have to multiply lenses original focal length with this multiplier to find the Full Frame equivalent focal length of the lens when mounted on M1.
You may also also be interested in these:
YI M1 Lenses with Image Stabilization
YI M1 Lenses with Weather Sealings