Ranklim
#5 ViewSonic LS901-4K
ViewSonic

ViewSonic LS901-4K

Ranked #5 in Best 4k Projectors of 2026: 8 Top Picks Ranked

Amazon rating
4.2
Ratings
30
Our score
8.8/10
Rank
#5 of 8
Price at Amazon $1,979.00

Price as of Sep 23, 2026. Prices change often and may be outdated. Check Amazon for the current price.

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What we like

  • Delivers 5,500 ANSI lumens, the brightest on this list
  • Reaches a 3,000,000:1 dynamic contrast ratio
  • Gaming runs 240Hz refresh with 4.2ms input lag
  • Includes 1.7x optical zoom and 360-degree installation
  • Rates the laser light source at 20,000 hours

Watch out for

  • Only 30 Amazon ratings at a 4.2-star average
  • Power draw of 520 watts is the highest here
  • Best for permanent ceiling installs, not casual setups

Our review

Viewsonic LS901-4K Review: Best Bright-Room Install Pick?

Sep 23, 2026

This Viewsonic LS901-4K review covers the projector ranked fifth of eight in our 2026 guide to the best 4K projectors, where it earns the best high-brightness installation pick label. ViewSonic builds it as a laser home theater projector with native 4K UHD (3840 x 2160) resolution, 5,500 ANSI lumens and a 3,000,000:1 dynamic contrast ratio. At $1,979 it costs more than most models on the list, and its 4.2-star average comes from just 30 Amazon ratings. Buyers who should care are the ones planning a permanent ceiling install in a large, bright room, not people who want to carry a projector between rooms. For them, the light output is the whole point.

Day to day, those numbers translate into a picture that survives daylight. At 5,500 ANSI lumens, a 100-inch image stays punchy with lamps on or blinds open, something a 2,000-lumen model cannot manage. The 1.7x optical zoom throws that 100-inch picture from 8.7 feet and stretches to 150 inches, while the full range runs from 30 inches up to 300 inches at the maximum throw of about 36 feet. Meanwhile, gaming runs at 240Hz with 4.2ms input lag, which keeps fast action smooth. HDR and HLG support plus native 21:9 suit wide-format movies, and a dedicated Golf mode lifts environmental colors for simulators. Installation is easier than most: horizontal and vertical keystone, curved-screen projection and 360-degree orientation fix awkward rooms, and the PJ-WMK-007 mount handles ceiling work. Expect 20,000 hours from the laser light source.

Value is where this one needs a straight answer. The ViewSonic LS901-4K asks $1,979, and for that money you get brightness and installation freedom that no cheaper pick in the guide matches. By contrast, the Epson and Valerion models have far deeper owner feedback behind them, and only 30 Amazon ratings support this projector. On top of that, the 520-watt draw is the highest in the group, so factor running cost and circuit capacity into your plan. Even so, a permanent ceiling install in a sunny media room is exactly the job it was built for. If you are renovating a dedicated theater, running a golf simulator or lighting up a large family room, this is the one to buy. Skip it if you need a portable unit or a low-cost first projector.

Specifications

Brightness
5,500 ANSI lumens
Power Draw
520 watts
Connectivity
HDMI, USB 2.0 Type A, 3.5mm audio
Display Type
Laser
Optical Zoom
1.7x
Contrast Ratio
3,000,000:1
Throw Distance
3.3 to 36 feet (100 inches at 8.7 feet)
Light Source Life
20,000 hours
Native Resolution
3840 x 2160 (4K UHD)
Screen Size Range
30 to 300 inches
Native Aspect Ratio
21:9, with HDR and HLG support
Refresh Rate and Input Lag
240Hz, 4.2ms

Frequently asked questions

Can the ViewSonic LS901-4K be ceiling mounted?
Yes. It supports ceiling mounting and is fully compatible with the ViewSonic PJ-WMK-007 mount. Horizontal and vertical keystone correction plus curved-screen projection help square the image in awkward rooms.
How large an image can the ViewSonic LS901-4K project?
It handles screen sizes from 30 inches up to 300 inches, with a 100-inch picture from 8.7 feet away. The 1.7x optical zoom lets you resize the image without moving the mount.
Is the ViewSonic LS901-4K bright enough for a room with windows?
Yes. Its 5,500 ANSI lumens and 3,000,000:1 dynamic contrast ratio make it the brightest pick in our guide, which keeps the picture readable with daylight in the room.
Does the ViewSonic LS901-4K work well for gaming and sports?
Yes. It runs at 240Hz with 4.2ms input lag, so fast-paced action stays fluid and tear-free. Sports and racing games benefit most from that combination.
Does the ViewSonic LS901-4K need lamp replacements?
No. The laser light source is rated for 20,000 hours, so you will not swap bulbs during normal use. That rating covers years of typical movie and game sessions.
Is the ViewSonic LS901-4K worth its $1,979 price?
Yes, if you want a permanent ceiling install in a large, bright room, because brightness and installation flexibility are what you pay for. Keep the 520-watt draw and the small base of 30 Amazon ratings in mind before you commit.
Ready to buy?

ViewSonic LS901-4K

From $1,979.00 at Amazon

Price as of Sep 23, 2026. It may have changed since.

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