ViewSonic PX748-4K vs LS740HD: Which Projector Offers the Best Built-In Speaker Experience?

[Harry Williams]

Introduce​

Parameter	ViewSonic PX748-4K​	ViewSonic LS740HD​
Picture​	​	​
Price​	$1099.99​	$978.13​
Recommended Uses​	Gaming​	Education, Home Cinema, Gaming, Business​
Highlight​	Brightness: 4000 Lumens Resolution: 4K UHD Contrast Ratio: High Input Lag: 4.2ms Refresh Rate: 240Hz Optical Zoom: 1.3x Keystone Correction: Auto H/V HDR Support: Yes Connectivity Options: HDMI, USB C, RJ45, 12V Trigger​	Brightness: 5000 Lumens Resolution: 1080p Lamp Life: Up to 30,000 hours Zoom: 1.3x optical zoom Projection Angle: 360 degrees Keystone Correction: H/V keystone, 4 corner adjustment Power Management: Auto power on/off Remote Control: LAN control with compatible systems (Crestron, AMX, Extron, PJ Link, ATEN, ViewSonic vController) Connectivity: HDMI, USB Type A, compatible with media players, PCs, Macs, and mobile devices​

Side-by-Side Comparison​

Display​

Parameter	ViewSonic PX748-4K​	ViewSonic LS740HD​
Screen Size​	30 Inches - 300 Inches​	30 Inches - 300 Inches​
Throw Distance​	0.75 Meters - 9.76 Meters​	1 Meters - 8 Meters​
Contrast Ratio​	12000:1​	3000000:1​
Display Resolution​	2160 Pixels​	1920x1080 Pixels​
Native Resolution​	3840 x 2160​	1920 x 1080​
Brightness​	4000 Lumen​	5000 Lumen​
Display Type​	DLP​	DLP​
Picture Quality Enhancement​	HLG​	-​

Features​

Parameter	ViewSonic PX748-4K​	ViewSonic LS740HD​
Video Encoding​	-​	-​
Lamp Wattage​	240 Watts​	203 Watts​
Light Source Life​	4000 Hours​	20000 Hours​
Controller Type​	Switch​	Remote Control, Button Control​
Control Method​	Remote​	Remote​
Mount Type​	Ceiling Mount​	Ceiling Mount​
Noteworthy Features​	3d Built-In​	Built-In Speaker, Eco-Friendly, ultra-large screen, Long-lasting​

Connectivity​

Parameter	ViewSonic PX748-4K​	ViewSonic LS740HD​
Connectivity Technology​	USB, Ethernet, USB 2.0 Type A, HDMI​	USB, HDMI, 3.5mm Jack​
Hardware Connectivity​	USB​	HDMI, USB 2.0 Type A, 3.5mm Audio​
Compatible Devices​	Personal Computer​	Laptop, Gaming Console, Smartphone, Speaker​

Measurements​

Parameter	ViewSonic PX748-4K​	ViewSonic LS740HD​
Dimensions L x W x H​	4.3"L x 12.2"W x 8.7"H​	11.3"L x 8.5"W x 5"H​
Item Weight​	2.8 Pounds​	6.6 Pounds​

Conclusion​

Product	PROS AND CONS​
ViewSonic PX748-4K​	Pros: • Stunning 4K resolution with sharp details • Vibrant colors and excellent picture quality • High brightness of 4000 lumens for clear images in well-lit rooms • Easy setup and a variety of connectivity options • Creates a cinematic experience in your living space Cons: • Reliability issues with the lamp, leading to premature failure • Presence of dead pixels after a short period of use • Projector may stop working unexpectedly, as experienced after six months • Potential complications regarding warranty and repair process Overall Impression: The ViewSonic PX748-4K UHD Projector offers a visually stunning experience with its vibrant colors and high brightness, making it a great alternative to traditional TVs. However, concerns about reliability, such as lamp failure and dead pixels, along with issues in the warranty process, may detract from its overall value. If you prioritize picture quality and cinematic experience, this projector is worth considering, but be aware of potential long-term reliability issues.
ViewSonic LS740HD​	Pros: • Laser technology ensures longevity and no risk of bulb burnout • Quiet operation, maintaining a pleasant environment • Extremely bright, suitable for daytime viewing • Excellent image quality with sharpness and clarity • Variety of tweakable settings including manual and digital zoom, and keystone correction • Good value for the price, especially as an entry-level home theater projector • Easy installation and large image projection • Works well in multiple scenarios (golf simulator, movies, sports) Cons: • Random orange glitch reported by some users • No lens shift, limiting placement flexibility • Requires a specific power cord setup with a proprietary connection • Manual zoom may not suffice for all screen sizes; electronic zoom needed • Built-in speaker has limited sound quality, not ideal for larger rooms Overall Impression: This projector is a strong contender for those seeking an entry-level home theater solution, particularly due to its bright image quality and quiet operation. While it has some limitations, such as the absence of lens shift and a subpar built-in speaker, its features and performance make it a worthwhile option for first-time projector buyers and those looking for a versatile device for various uses.