Yes, you can operate the XGIMI Horizon Pro 4K projector with Apple TV via HDMI. The Horizon Pro 4K supports HDMI connections and is compatible with various devices, including media streamers such as Apple TV.

- The projector has multiple HDMI inputs that you can use to connect Apple TV.
- There are no known compatibility issues between the XGIMI Horizon Pro 4K and Apple TV via HDMI.