This savvy smart mirror shows off at CES 2019
https://www.cnet.com/news/savvy-smart-mirror-shows-off-at-ces-2019/
The 22-inch smart display can be controlled via touch (but beware of fingerprints on your mirror), and the mirror includes a far-field microphone, HDMI input, integrated speakers and screen casting for sharing video between your devices. A motion sensor detects when you enter the room.
The mirror ranges from $2,000 to upward of $6,000 depending on the size and configuration you select.