Projectors & screens

For a projector you will keep long-term or use heavily, laser usually wins on total cost. For lighter use on a tight budget, the lamp model's upfront saving is real. Pick the column you belong in first.

At the sizes projectors exist for, yes, 4K is visibly worth it. A big picture is the entire reason you chose a projector, and Full HD is the resolution that struggles most as the image grows.

A wall gets you started. A screen gets you the picture you paid for. Both statements are true, so the real question is sequencing.

Start from your seating distance, because the room has usually fixed it already, and work backwards to the screen. That is the whole method.

The lumen number matters less than two things it depends on: how much light you can keep out of the room, and how big an image you are spreading that light across.

Different tools for different rooms. In a bright Indian living room with mixed daytime use, a large TV is usually the right recommendation; in a room where you can control the light, a projector delivers a scale nothing else replicates.