Amazon.com: ELECROW Raspberry Pi Touchscreen Monitor 5 inch Screen Display 800x480 HDMI-Compatible with Raspberry Pi 4 3B+ 3B 2B BB Black Banana Pi Jetson Nano Windows PC : Electronics
Amazon.com: Weton 2-in-1 USB Type C Micro USB Android Phone to TV HDMI Cable,MHL to TV HDMI Adapter 1080P HDTV Mirroring & Charging Cable for Android Smartphone Tablets to TV Projector Monitor,6.6ft :
Lilliput TK701/T - 7" HDMI Capacitive Touch Monitor with Wall Mount Kit
HDMI 5 Display Backpack - Without Touch : ID 2232 : $59.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Top Tablets with HDMI Output and Input
Amazon.com: Plugable Active DisplayPort to HDMI Adapter, Driverless Connect Any DisplayPort-Enabled PC or Tablet to an HDMI Monitor, TV or Projector for Ultra-HD Streaming (HDMI 2.0 up to 4K 3840x2160 @60Hz) :
HDMI Monitor at very low cost - Use your Old Android Tablet as an HDMI monitor
Using Cell Phone Screens With Any HDMI Interface | Hackaday
Amazon.com: KAMING 2-in-1 USB C Type C/Micro USB Android Phone to TV HDMI Cable, MHL to HDMI Adapter 1080P HD HDTV Mirroring & Charging Cable for All Android Smartphones Tablets to TV/Projector/Monitor,6.6ft :
How to Connect Tablet to TV using HDMI - Easy & Fun!!! - YouTube