Is the 8K support real 8K projection?

No. The projector outputs native Full HD and can decode video sources up to 8K, downscaling them to its panel. Expect a 1080p image, not 8K.

How far from the wall does it need to be?

The 0.8:1 throw ratio means roughly 0.8 units of distance per unit of screen width. A screen about 100 inches wide needs around 80 inches of distance, far less than a standard long-throw projector.

Can I use it in a bright room?

Not comfortably. At 400 ANSI lumens it is best in a dark or heavily dimmed room. Daylight or strong lamps will wash out the picture.

Does it need a streaming stick?

No. Android 14 is built in, so compatible streaming apps run on the projector itself over WiFi 6. A stick is only useful if an app you want is missing.

What is the difference between the remote options?

One version ships with an IR remote; the other includes an Airmouse with voice control. The projector itself is the same; the choice is about how you navigate and search.