Anker - Capsule Air (D4112)

Seenebula.com makes a 4k Laser SE with Dolby vision but this requires external power. If you want portable they make the mars 3 which is 1080p with a 200wh battery built in that can get you up to 5.5 hours if playing off USB at a reasonable volume in eco mode 300ish lumens. Then there's full brightness at 1000 lumens around 2.5 hours. I have the original laser4k without Dolby vision, the mars 3 and the capsule air.

They have projectors that have Android TV or Google TV built in. They are called lifestyle projectors. You will need to have the ability to control the amount of the light in the room. A screen can cost a significant percentage of the cost of a good projector. Some brands that are popular with higher lumens levels. Seenebula.com, xgimi. Keep in mind a higher lumens projector from a reputable brand is going to cost more than a TV. Don't be shocked. I have experience with both xgimi and Nebula projectors. I sold my xgimi to buy another nebula. I currently have the nebula Astro, capsule air, Mars 3, laser4k and a BenQ th575 (no built in OS). Forgot to add that you should not be fooled by projectors on various marketplaces that offer unreal lumens ratings for dirt cheap. Expect to spend $1,500+ for a decent lumens lifestyle projector and probably close to the same for a screen.

Do you have crap wireless? I have the nebula laser 4k without issue. I also have the capsule air and use it without issue but it's not 4k. If it's stationary just get an external player and connect to the laser4k.

My mars 3 air is probably my most used nebula due to the large capacity battery. I have the astro, air, laser4k (O.G.) and the X1