Ring doorebell 4

Recently purchased a Doorbell 4 for installation on weatherboards.

Can I use a wedge kit with the Doorbell 4?

If so do I need a mounting bracket?

You sure can! This Wedge Kit will fit the Video Doorbell 4. Your Video Doorbell mounting holes will align with the ones on the Wedge Kit, in which your existing hardware (screws) can often be used, depending on installation.