Gaming~$999

Optoma

Optoma UHD35x

Name: Optoma UHD35x
Brand: Optoma
Price: 999 USD
Availability: InStock

The cheapest way to get 4.2 ms of input lag and 3,600 ANSI lumens into a room. A 240 W metal-halide lamp does the work, which is why it costs half what the laser equivalents do and why the light source is a consumable.

Approx. price

~$999

snapshot, not a live price

Brightness

3,600

ANSI

Screen at 10 ft

83–92 in

16:9 diagonal, estimated from the throw ratio

Input lag

8 ms

fastest published mode

Light source

Lamp

4,000 h rated

Best for: A bright room on a tight budget where lag matters more than lamp life

Specifications

Type: Gaming
Imaging tech: DLP
Native resolution: 4K pixel-shift
Max signal: 1080p240
Max refresh: 240 Hz
Light source: Lamp
Light source life: 4,000 hours
Throw ratio: 1.5–1.66:1
Zoom: 1.1x
Dynamic contrast: 1,000,000:1
Input lag (4K/60): 17 ms
Input lag (1080p/120): 8 ms
HDR formats: HDR10, HLG
3D: Full HD 3D
Speakers: 10 W total
HDMI: 2 × HDMI 2.0
Fan noise: 28 dB
Weight: 8.8 lb
Released: 2022

Features

4.2 ms at 1080p/240
3,600 ANSI lumens
1.1x zoom
Full HD 3D
10 W speaker
Enhanced Gaming Mode

What it does well

3,600 ANSI lumens for around $999 is the most standardized brightness per dollar in this catalog
4.2 ms at 1080p/240 matches projectors costing three times as much
28 dB is quieter than most lamp projectors at this output
Full HD 3D, which is disappearing from newer models

What it gives up

A 240 W lamp rated 4,000 hours — the light source is a recurring purchase
Only a 1.1x zoom and no lens shift, so placement is close to fixed
HDMI 2.0 caps 4K at 60 Hz; the 240 Hz path is 1080p only
No streaming and no smart platform of any kind
It uses an RGBW colour wheel with a white segment, which lifts the white-lumen figure without lifting colour brightness

The two lists above are read off manufacturer specifications and published measurements, not from owner reports. Where owner discussion has been collected it appears separately below, so the two are never mistaken for each other.

Throw calculator

Worked from this projector’s published throw ratio of 1.5–1.66:1. Estimates: a real install loses a little to lens offset, and zoom ranges are quoted at the extremes of the lens.

Lens to screen

feet

16:9 diagonal

83–92 in

Throw at a glance

Screen at 8 ft: 66–73 in
Screen at 10 ft: 83–92 in
Screen at 14 ft: 116–128 in
100-inch screen at: 10 ft 11 in–12 ft 1 in
120-inch screen at: 13 ft 1 in–14 ft 6 in

16:9 diagonals, estimated from the published throw ratio: image width = distance ÷ throw ratio, diagonal = width ÷ 0.8716. The maths.

Compare the Optoma UHD35x

Where these specs come from

https://www.projectorcentral.com/optoma-uhd35x.htm

The brightness figure is measured to a nine-point screen standard and is comparable with the rest of the catalog.

What owners say

Owners buy this for one reason and worry about one thing. The reason is the price: around $899 for a 4K projector with 3,600 standardized lumens and a fast gaming mode is hard to match, and owners moving up from old 1080p projectors describe the brightness jump as transformative rather than incremental.

The worry is reliability, and it attaches to the brand rather than to this model: owners of several of Optoma's 4K DLP projectors report DMD chips failing with white dots, and that history colours discussion of the whole line. Few reports name this model specifically.

The technical trade worth knowing is the colour wheel. This uses an RGBW wheel with a white segment, which is how it posts a high white-lumen figure — and it costs colour brightness relative to a projector with an RGBRGB wheel. Owners comparing it with contrast-focused rivals at similar money report giving up black level for brightness, and recommend the alternative for a dark room.

What owners like

Owners find it around $899 new, which they describe as an unusually good price for a bright 4K projector with a fast gaming mode
Owners upgrading from older 1080p projectors report peak brightness going from around 1,000 lumens to a figure that still exceeds 1,000 in ordinary everyday picture modes
Owners recommend it over 3LCD rivals specifically when fan noise matters, describing Epson's projectors as noisy even in eco mode
It offers more brightness and a wider colour gamut than the 1080p competition at a similar price, which suits a well-lit room

Common complaints

Reliability worries attach to Optoma's 4K DLP line as a whole — owners of several models report DMD chips failing with white dots — rather than to this model specifically
It uses an RGBW colour wheel with a white segment, which boosts the white-lumen figure at the expense of colour brightness relative to an RGBRGB wheel
Owners comparing it with contrast-focused rivals report it loses on black level in a dark room, and recommend the alternative for film watching
No lens shift and only a 1.1x zoom, so the install position is effectively fixed

Questions owners ask about the Optoma UHD35x

Is it reliable?

Few owner reports name this model, and none describes a systematic fault with it. The caution owners voice is about Optoma's 4K DLP line in general, where several models have drawn reports of DMD chips failing with white dots, and service response is described as slow. Check the warranty length in your market before buying.

What does the RGBW colour wheel cost me?

Colour brightness. A white segment in the wheel raises the white-lumen figure without raising colour output, so the projector measures brighter than its colour performance suggests. An RGBRGB wheel produces better colour at a lower headline brightness. In a lit room the extra white light is useful; in a dark room the colour matters more.

How does it compare with the contrast-focused rivals at the same price?

Owners describe the trade plainly: this one is brighter with a wider gamut and suits a well-lit space; the alternatives are better on contrast and suit a dark room for film. Which is right depends entirely on the room.

Is it noisy?

The published figure is 28 dB and owners who cross-shopped 3LCD projectors specifically cited noise as a reason to pick Optoma, describing the 3LCD alternatives as noisy even in eco mode. Owners of the brighter sibling in this family report more fan noise at 4K.

How flexible is the placement?

Not very. No lens shift and a 1.1x zoom means a specific screen size dictates a specific throw distance. Check a throw calculator against your actual measurements before buying, because this is the constraint that catches people out.