The Wi-Fi problem, which is the real one
Think about where a projector actually goes. Ceiling-mounted at the back of a living room, or on a shelf against the rear wall, or on a tripod in a garden. All of those are further from the router than a television in the same room would be, and a ceiling has the added problem that the stick ends up tucked behind the projector body with metal and plastic between it and the rest of the house.
This is why a projector setup that plays perfectly at 11am stutters at 9pm. Nothing is wrong with the projector or the stick; the connection is marginal and the evening is when everyone else in the house is using it too.
Three fixes, cheapest first.
Pick a stick with a better radio.Roku advertises a long-range wireless receiver on the Streaming Stick 4K, which is the cheapest way to improve the link. In an apartment building or a dense street where the airwaves are crowded, the Fire TV Stick 4K Max is the better answer because it publishes Wi-Fi 6E — the 6GHz band is largely empty, so there is less competing traffic.
Use an HDMI extension cable so the stick is not behind the projector. A short extension lets the stick hang below a ceiling mount, out in open air rather than shadowed by the chassis. It is a few dollars and it genuinely moves the needle.
Or stop using Wi-Fi. If the projector is permanently installed, a wired box is the real fix. The Roku Ultra and the Google TV Streamer 4K both publish an Ethernet port. Running one cable to a ceiling mount is a job, but it is a job you do once and never think about again. If a cable is impossible, the coaxial cable your cable TV used to use can often be turned into a wired link instead, and an extender placed between the router and the projector is the cheap wireless compromise.
The audio problem
A streaming stick sends picture and sound together down one HDMI cable. A television then plays the sound. A projector frequently cannot: many have no speakers, and many of those that do have speakers nobody would choose to listen to over a 100-inch image.
So the audio has to be separated out, and there are three usual routes. The projector may have its own audio output, in which case sound arrives over HDMI and leaves again to your speakers. An HDMI audio extractor sits between stick and projector and splits the two. Or you put an AV receiver in the middle, which is what a permanent home-cinema setup does and is the tidiest answer if you already own one.
What we are not going to do is tell you which audio ports your projector has, because that varies by model and we only publish specifications we have read from a listing. Check the projector’s own manual for an audio out or an optical port before buying anything, and note that Bluetooth headphones paired to a streaming stick are a common source of lip-sync delay — fine for background viewing, irritating for a film.
4K or 1080p: match the projector, not the fashion
Plenty of projectors in use are 1080p, and a 4K stick connected to a 1080p projector gives you a 1080p picture. There is no hidden benefit. If your projector is 1080p, buy the Fire TV Stick HD, spend less, and put the difference toward the thing that actually improves a projected image.
Which is, almost always, the screen and the room rather than the source. A bright room and a white wall will cost you more picture quality than any streaming device decision — projector contrast is set by how dark you can make the room, and that is free to improve.
If your projector genuinely is 4K and HDR capable, the Roku Streaming Stick 4K publishes both Dolby Vision and HDR10+, which is the better-specified end of the stick market. Our comparison chart lists what every current stick and box publishes side by side.
Portable and outdoor projectors
A battery projector in a garden is a different brief again, and here the stick choice is easy: the Fire TV Stick HD, because its listing advertises being powered from the television’s own USB port, and some projectors have a USB port that will do the same job. One fewer thing to run an extension lead to.
The harder part outdoors is the connection. A projector at the end of a garden is well outside most routers’ useful range, and the honest options are a weather-rated outdoor access point if this is a regular thing, a travel router repeating the house signal, or downloading content to a tablet beforehand and skipping the network entirely. On a camping trip with no connection at all, a portable antennaand the projector’s own tuner, if it has one, is the setup that uses no data.
Picking between the five
4K projector, Wi-Fi only: Roku Streaming Stick 4K. The long-range receiver is the reason.
1080p projector: Fire TV Stick HD. Correct resolution, lowest price, and it can take power from a USB port.
Apartment or crowded street: Fire TV Stick 4K Max, for the Wi-Fi 6E radio and the quieter 6GHz band.
Permanent install with a cable: Roku Ultra, which publishes wired Ethernet alongside Wi-Fi and keeps the familiar Roku interface.
Permanent install, and you want storage and recommendations:Google TV Streamer 4K, which publishes an Ethernet port and 32GB of storage — far more than any stick, so apps and games actually fit.
Two practical notes before you order
Check the HDMI port clearance. Projector HDMI ports are often recessed or sit close to a vent or a mount bracket. A stick is a chunky thing; a short HDMI extension cable solves it and is worth buying at the same time rather than after a failed evening.
Check how the stick will be powered. Ceiling mounts rarely have a spare mains socket. A projector with a powered USB port can sometimes run the stick directly, which is the neat answer; otherwise the power lead has to reach the ceiling along with everything else, and that is worth knowing before the ladder comes out.