Great 4K Portable Monitor KYY K3-3 Review

KYY K3-3 4K Portable Monitor Released

We have all probably seen an HD 1080p portable monitor but not many 4K, today we’re taking a look at the newest release from KYY: their KYY K3-3 4K portable monitor.

This monitor boasts a 15.6-inch display with a stunning 4K resolution and a claimed brightness of 400 nits. It’s compatible with a wide range of devices, including PCs, Macs, gaming consoles, and even mobile phones with a desktop interface.

Let’s see if the K3-3 lives up to the hype and if it’s a worthy upgrade over the previous 1080p model.

KYY K3 3 4K second kickstand groove

KYY K3 3 4K first kickstand groove

Unboxing the KYY K3-3

The K3-3 comes with everything you need to get started:

  • The 4K portable monitor itself
  • A USB-C to USB-C cable
  • An HDMI to mini HDMI cable
  • A 5V 3A DC power adapter and cable
  • A user manual
  • A guide on how to use the kickstand

The design is sleek and modern, featuring a metallic body and a convenient magnetic kickstand. Attaching the kickstand is a breeze – simply apply gentle pressure to the base, and it snaps into one of the designated grooves on the floor of the kickstand.

KYY K3 3 in the box

Display and Features

The star of the show is the display: a stunning 15.6-inch 4K (3840 x 2160p) IPS panel. This panel boasts 100% Adobe RGB color gamut, which is superior to the standard sRGB and translates to richer, more vibrant colors. It also features an impressive 8-bit, 16.7 million color display.

The K3-3 promises a bright viewing experience with a claimed brightness of 400 nits and a high contrast ratio of 1500:1. The refresh rate sits at a standard 60 Hz.

The bezels are minimal, measuring 1 cm on either side, ½ cm at the top, and ¾ inch at the bottom. The bottom bezel features a chrome accent and the KYY branding.

On the left side of the monitor, you’ll find a built-in speaker, a power button, an on-screen display (OSD) menu controller, and a headphone jack. The right side houses another speaker, two USB-C power and display ports, and a mini HDMI port.

Accessing the OSD menu is straightforward. Simply press the control rocker button, navigate through the options by pushing up and down, press the button again to enter menus, use the up and down buttons to change settings, and use the power button to go back or exit.

The K3-3 supports the full 4K resolution at up to 60 Hz and even features HDR display for enhanced visuals.

KYY K3 3 4K left side

KYY K3 3 4K right side


The K3-3 excels in terms of compatibility. It can connect to a wide range of devices, including:

  • Laptops
  • Desktops
  • Mac computers
  • Mini PCs

When connected via USB-C, the monitor can draw power from the source device, eliminating the need for a separate power adapter.

The K3-3 can also be used in workstation mode, allowing you to duplicate or extend your laptop or desktop display.

For mobile phones with a desktop mode, the K3-3 can transform your phone into an Android desktop computer. However, you’ll likely need to use the monitor’s power adapter to supplement your phone’s battery life, as reverse charging might not provide enough power.

Gaming enthusiasts will be happy to know that the K3-3 connects seamlessly to popular consoles like Xbox, PS5, and Nintendo Switch. You might need to use both the HDMI cable and the power adapter for these connections.

KYY K3 3 4K on PC

KYY K3 3 4K on mobile

KYY K3 3 4K laptop extended display

K3-3 vs. K3: A Side-by-Side Comparison

We put the K3-3 next to its predecessor, the K3 1080p model. With all settings equal, the K3-3 displayed noticeably brighter visuals and richer colors across various scenes.

KYY K3 3 4K versus K3 1080p

The Verdict: Is the K3-3 Worth It?

The K3-3 is a clear improvement over the K3 1080p model. It delivers a stunning 4K resolution, boasts a superior color gamut, and offers a wider range of connectivity options.

If you’re looking for a high-quality portable monitor with excellent image quality and versatility, the K3-3 is definitely worth considering.

Currently, it’s available on Amazon with a discount using this link KYY K3-3 4K Portable Monitor.

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