Optoma UHD35STX

Name: Optoma UHD35STX
Brand: Optoma
SKU: 946896
Price: 1361 EUR
Availability: InStock
Rating: 8.8 (3 reviews)

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Specifications

Product information

Key specs

4K (UHD)

3600 ANSI lumen

0,5 - 1 m

Conference room, Living room

28 dB

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Pros and cons

According to our projector expert

The 4K resolution provides sharp projections with many details.
Thanks to the 3600 ANSI lumen light output, you can still see a clear projection in a lit room.
You don't notice much lag between the controller and the action on the screen thanks to the low input lag.
This projector doesn't have a built-in smart platform, so you can't stream content without a separate media player.

Description

With the Optoma UHD35ST, you can project your favorite series or games in high quality. You can view razor-sharp images in 4K resolution, which allows you to recognize even the smallest details. Thanks to HDR support, colors splash off the screen. The projector has a high 3600 ANSI lumens light output that allows you to see a clear projection even in a dimly lit room. That's useful if you place the projector in a classroom or in your living room, where there's a lot of light during the day. On the 2 HDMI ports, you can connect peripherals like a Google Chromecast or game console. Thanks to the 4.2ms low input lag, you won't notice much lag between the controller and the action on the screen during gaming. This way, you can also comfortably play action games on the projector.

The Optoma UHD35ST has a throw ratio of 0,5:1, which means you can place the projector about 0.5m away from the screen for a 1m wide projection. For a 2m wide projection, you can double this distance to 1m. Be sure to first check where you want to put the projector and if there's space.

Tips for using this product

Included by default

Manual(5.59 MB)
AC power cord
Remote
AAA batteries (2x)

Reviews

Rating

5 stars

4 stars

3 stars

2 stars

1 star

Most helpful reviews

Review is 10 out of 10.

High-end product for the critical projector user

You have to invest in a projector. This is a beautiful high-end product for optimum image quality.
Alignment is effortless via angle adjustment on all four corners

Very high quality high end projector

Review by:
Barry
Date:
7 June 2025
Translation:
Automatically translated from Dutch

Review is 8,0 out of 10.

Nice short throw 4k projector.

Nice sharp image
Ideal for small spaces (short throw)
Lots of light, even without a darkened room
More sound at 4k

I've had the Optoma GT1080e for years, and this is supposed to be its replacement. I was hoping for a slightly higher wow factor. The image is much sharper, even across the entire screen (with older short throws, you could see that the edges of the screen weren't as sharp).

The sound is a bit of a letdown; it's not quiet and gets louder when switching to 4K. Keep this in mind if you're using it on a table in front of you, for example.

Review by:
Koen
Date:
6 January 2026
Translation:
Automatically translated from Dutch

Review is 8,5 out of 10.

Very nice projector.

Very nice picture and excellent adjustment options (many options, so adjust it properly when using it for the first time)
The only point of attention I can think of is that the projector should be positioned close to the screen, and not too high (otherwise you will project above your screen).

I bought this to replace an older projector. It needed replacing because the image was no longer readable from a distance. This projector solves that problem perfectly.

Review by:
Marco Luiten
Date:
17 February 2026
Translation:
Automatically translated from Dutch

Specifications

Product

Product
	Product number	946896
	Manufacturer code	E9PV7KJ01EZ1
	Brand	Optoma
	Warranty	2 years
	Processing of your defect	Via Coolblue

Key properties

Key properties
	Sharpness	4K (UHD)
	Brightness	3600 ANSI lumen
	Contrast ratio	1000000
	Throw ratio	0,5 - 1 m
	Recommended for use	Business use, Education, Gaming, Home cinema
	Recommended for type of room	Conference room, Living room
	Smart function properties
	Projector size	Normal

Image properties

Image properties
	HDR support
	Type of HDR	HDR10
	Input lag	4 ms
	Minimum image size (diagonal)	36 inches
	Maximum image size (diagonal)	300 inches
	Aspect ratio projection	16:9
	Alternative aspect ratio	4:3
	Projector technology	DLP
	3D
	3D technology	Active
	DLP Link

Properties for placement

Properties for placement
	Projection distance for 100-inch projection	1,1 m
	Type throw ratio	Short throw
	Zoom function
	Maximum projection distance	3,3 m
	Keystone correction
	Keystone correction	Horizontal, Vertical, Vertical and horizontal
	Vertical keystone degrees	15 °
	Horizontal keystone degrees	15 °

Light properties

Light properties
	Type of light source	Standard
	Expected lifespan lamp (normal use)	10000 hours
	Replaceable lamp

Noise level fan

Noise level fan
	Maximum noise level	28 dB
	Noise level (saving mode)	24 dB

Smart functionalities

Smart functionalities
	Smart platform	Optoma smart platform
	Chromecast built in
	Screen mirroring option
	AirPlay
	Media player
	Memory card reader

Wireless connections

Wireless connections
	Built-in WiFi
	Bluetooth

Wired and wireless connections

Wired and wireless connections
	HDMI connector
	Type of HDMI connector	Standaard HDMI Type A
	HDMI ARC (Audio Return Channel)
	Number of HDMI connectors	2
	USB port
	Type of USB port	Standard USB-A, USB-C
	USB function	Data transfer, Power source, Software updates
	Number of USB ports	1
	VGA connector
	Mobile HD Link (MHL)
	Digital optical connector
	Headphone jack
	Tripod connection
	Screen trigger
	Kensington lock

Physical properties

Physical properties
	Weight	3,5 kg
	Height	11,8 cm
	Width	31,5 cm
	Depth	27 cm
	Color	White

Other properties

Other properties
	Battery (power source)

This is the one

Optoma UHD35STX

Review is 8,8 out of 10, based on 3 reviews.

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Optoma UHD35STX