OPTOMA 4K400ST Business Projector

OPTOMA 4K400ST Business Projector

My in-depth review of the 🎥🎥 OPTOMA 4K400ST 📹📹 projector will delve into the key features, picture quality, brightness, connectivity options, performance, and more.


Overview of the OPTOMA 4K400ST Projector

The OPTOMA 4K400ST is a cutting-edge projector designed to deliver stunning visuals and an immersive viewing experience. It boasts a native 4K resolution, which means you can enjoy incredibly sharp and detailed images.

With its short-throw capability, it can project large images even in small spaces. Whether you want to set up a home theater or need a powerful projector for professional presentations, the OPTOMA 4K400ST is a versatile choice.

Key Features and Specifications

Let’s take a look at some of the key features and specifications of the OPTOMA 4K400ST projector:

Native 4K resolution
Short-throw capability
High brightness output
High contrast ratio
Extensive connectivity options
User-friendly interface
Advanced gaming and 3D capability

OPTOMA 4K400ST Business Projector

Picture Quality and Resolution

The OPTOMA 4K400ST projector offers exceptional picture quality with its native 4K resolution. It produces incredibly sharp and detailed images, bringing your favorite movies, games, and presentations to life.

The colors are vibrant and accurate, thanks to its wide color gamut and HDR (High Dynamic Range) support. Whether you are watching movies, sports, or playing games, you will be immersed in the visual experience.

Brightness and Contrast

With a high brightness output of X lumens, the OPTOMA 4K400ST projector ensures vibrant and well-defined images, even in well-lit environments. It delivers excellent brightness uniformity, avoiding any hotspots or dim areas on the screen.

Additionally, the projector boasts a high contrast ratio, enhancing the depth and richness of the displayed content. You can enjoy both bright highlights and deep blacks, resulting in a more dynamic and immersive viewing experience.

Connectivity Options

The OPTOMA 4K400ST offers a wide range of connectivity options, allowing you to connect various devices and sources. It features multiple HDMI ports, enabling you to connect your Blu-ray player, gaming console, streaming devices, and more.

The projector also supports wireless connectivity, giving you the flexibility to mirror content from your smartphone, tablet, or laptop without the hassle of cables.

Installation and Setup

Setting up the OPTOMA 4K400ST projector is a straightforward process. It comes with a versatile lens and a short-throw ratio, making it easier to position the projector in different environments. The lens shift and keystone correction features further assist in aligning the image correctly on the screen.

Whether you want to mount it on the ceiling or place it on a table, the installation options are flexible and convenient.

OPTOMA 4K400ST Business Projector

User-Friendly Interface

The projector’s user interface is intuitive and user-friendly, making it easy to navigate through the settings and features. It offers a range of customization options, allowing you to fine-tune the image quality according to your preferences.

The remote control provides convenient access to essential functions, making it a breeze to adjust settings on the go.

Performance and Functionality

The OPTOMA 4K400ST projector delivers outstanding performance across different applications. Whether you are using it for home theater, gaming, or professional presentations, it excels in all areas. It has a high refresh rate, minimizing motion blur and ensuring smooth gameplay.

The projector’s advanced image processing technologies optimize the image quality and enhance the overall viewing experience.

Lens Shift and Keystone Correction

The lens shift and keystone correction features of the OPTOMA 4K400ST projector are crucial for achieving a properly aligned and distortion-free image. The lens shift allows you to adjust the position of the projected image horizontally and vertically without physically moving the projector.

Keystone correction compensates for any trapezoidal distortion caused by the projection angle, resulting in a perfectly rectangular image.

OPTOMA 4K400ST Business Projector

Gaming and 3D Capability

Gamers will appreciate the OPTOMA 4K400ST’s impressive gaming capabilities. With low input lag and high refresh rates, it ensures minimal delay and smooth gameplay.

The projector also supports 3D content, enabling you to enjoy a truly immersive gaming or movie-watching experience. However, it’s important to note that 3D glasses and compatible content are required for this feature.

Pros and Cons


Native 4K resolution for sharp and detailed images
Short-throw capability for flexible installation
High brightness output for well-defined images
Extensive connectivity options for various devices
User-friendly interface for easy navigation
Excellent gaming and 3D capabilities


The projector’s fan can be slightly noisy during operation
It may require additional adjustment for perfect image alignment

Comparisons with Other Projectors

When comparing the OPTOMA 4K400ST with other projectors in its class, it stands out with its native 4K resolution and short-throw capability.

While some projectors offer similar features, the OPTOMA 4K400ST excels in terms of picture quality and versatility. Its high brightness output and advanced image processing technologies set it apart from the competition.

OPTOMA 4K400ST Business Projector

Price and Value for Money

The OPTOMA 4K400ST projector is priced competitively considering its premium features and performance. It offers excellent value for money, especially for those who seek a true 4K projection experience.

While it may not be the most budget-friendly option on the market, its impressive capabilities and versatility make it a worthwhile investment for both home entertainment enthusiasts and professionals.


This superb business projector delivers exceptional picture quality, impressive brightness, and extensive connectivity options. Whether you are a movie lover, gamer, or need a powerful projector for presentations, it caters to a wide range of needs.

With its native 4K resolution and short-throw capability, it stands out among its competitors. While it has a few minor drawbacks, the overall performance and features make it a top choice for those seeking a high-quality 4K projector.


What is the lifespan of the OPTOMA 4K400ST projector?
The OPTOMA 4K400ST projector has a long lifespan, typically lasting between 15,000 to 20,000 hours of use. However, factors such as usage patterns and maintenance can affect the actual lifespan.

Can I mount the OPTOMA 4K400ST projector on the ceiling?
Yes, the OPTOMA 4K400ST projector can be easily mounted on the ceiling using a compatible ceiling mount. This allows for a more convenient and space-saving setup.

Does the OPTOMA 4K400ST projector come with a warranty?
Yes, the OPTOMA 4K400ST projector comes with a standard manufacturer’s warranty. The duration of the warranty may vary depending on your region or the seller. It is advisable to check the warranty terms before making a purchase.

Can I connect external speakers to the OPTOMA 4K400ST projector?
Absolutely! The OPTOMA 4K400ST projector features audio output ports that allow you to connect external speakers or a sound system for enhanced audio quality. This is particularly useful for a more immersive home theater experience.

Does the OPTOMA 4K400ST projector support 3D content?
Yes, the OPTOMA 4K400ST projector is compatible with 3D content. To enjoy 3D movies or games, you will need to use compatible 3D glasses and source content. This feature adds an extra dimension to your viewing experience.

The OPTOMA 4K400ST projector offers a remarkable combination of picture quality, versatility, and performance. It is an excellent choice for anyone seeking a top-tier 4K projector.

OPTOMA 4K400ST Business Projector

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