Optoma 4K400x vs Optoma UHD35x

What 4K400x does better (2) and where UHD35x wins (1) — every spec side by side.

Optoma · 20224K400x

6.5Score

2 advantages≈ US$1,350

Optoma · 2022UHD35x

7.0Score

1 advantage≈ US$1,400

Higher score

8.7Picture7.8

5.9Gaming & inputs5.9

4.3Setup & placement7.0

4.7Noise, lifetime & portability4.4

Dimensions

Size comparison

4K400xUHD35x

Drawn to the same scale from the official dimensions (front and side).

Specifications

Only differences	Optoma 4K400x≈ US$1,3506.5	Optoma UHD35x≈ US$1,4007.0
Picture
Resolution (on screen)	3840 × 2160 (4K UHD)	3840 × 2160 (4K UHD)
Native panel resolution	1920 × 1080 (Full HD)	1920 × 1080 (Full HD)
4K method	4K by pixel shifting	4K by pixel shifting
Display technology	DLP	DLP
Brightness (ANSI / ISO lumens)	4,000 lm	3,500 lm
Contrast ratio (dynamic / claimed)	1,000,000:1	1,000,000:1
HDR support	Yes	Yes
Motion interpolation (MEMC)	Yes	Yes
3D playback	Yes	Yes
Gaming
Maximum refresh rate	120 Hz	120 Hz
Game / low-latency mode	Yes	Yes
Lens & placement
Throw ratio	1.5:1	1.5:1
Throw ratio (zoomed in)	1.66:1	1.66:1
Throw type	Standard throw (1.0:1 and longer)	Standard throw (1.0:1 and longer)
Distance for a 100″ 16:9 image	3.32 m	3.32 m
Smallest image size	33″	33″
Largest image size	300″	302″
Optical zoom	—	1.1×
Lens shift	None	Vertical
Keystone correction	Yes	Yes
Automatic keystone correction	No	No
Sound
Built-in speakers (total output)	10 W	10 W
Connectivity
HDMI inputs	2	2
HDMI version	2	2
USB port	Yes	Yes
Ethernet (LAN)	No	No
VGA input	No	Yes
Audio output	Yes	Yes
Battery, power & lifetime
Power consumption	305 W	305 W
Light source life	4,000 h	4,000 h
Light source life (eco mode)	15,000 h	15,000 h
Design & noise
Fan noise	28 dB	28 dB
Fan noise (eco mode)	26 dB	26 dB
Weight	3.5 kg	3.9 kg
Width	315 mm	315 mm
Height	118 mm	118 mm
Depth	270 mm	270 mm
Colours	White	White