B&H Photo Video has the Dell 23 (S2317HWi) 23" Wireless Connect IPS LED Monitor with Wireless Charging Stand (2016 model) for $85 with free shipping.

Enables simultaneous wireless display from a Windows laptop and an Android smartphone.

1920 x 1080 @ 60Hz, 16:9 aspect ratio, 6ms response time

250 cd/m2 brightness, USB 2.0 hub, HDMI, Dual Screencast w/ WiFi Direct