ABOUT KYY:
- Launched in 2015, KYY quickly became a leading brand on portable monitor, and has garnered praise from most users and influencers. KYY focuses on easy portability, high-quality, and wide connectivity, offers a quick connection between devices.
- KYY's vision is to provide the innovative solutions that are affordable, user-friendly, and purposeful, to create a better world, connecting with devices, connecting with love.
2026 New Arrivals
Most Popular
Now on Sale
What should I know before buying this monitor?
1, Phones without full-featured Type-C port need an adapter to connect.
2, Laptops without full-featured Type-C port need connected via HDMI & USB C to USB A cable.
3, Not suppot bluetooth, wireless and WIFI connection. No battery. Not touchscreen.
What is each cable used for?
1, USB C to USB A cable, only for power supply.
2, USB C to USB C cable, for power supply & video output.
3, MINI HDMI to HDMI cable, only for video output.
Note: For HDMI connection, pls use USB C to USB A cable to power up the monitor.
Will any USB C to USB C cables work with this display?
The USB C to USB C cable should be the USB C 3.1 Version one, which supports video ouput. Or the monitor will fail to be connected.
I have charged the monitor for several hours. Why does it fail to turn on and show "no signal"?
KYY portable monitor does not come with a built-in battery.
Please connect the monitor with your device (like laptop, PC, Switch etc.) via [USB C to USB C cable] or [MINI HDMI to HDMI cable] & [USB C to USB A cable] for usage.
How to connect the monitor with my iPhone17?
For iPhone 15/16 /17 series, it can connect the monitor via USB C cable.
But pls use the USB C to USB C cable with the monitor package.
USB C-C cable should be USB C 3.1 Version which supports video output, or the monitor will fail to be connected.
KYY Portable Monitor Series
 K3 Grey |  X90G Grey |  X90E (Windows Only) |  X90D Black |  K5 ( 4K Monitor) |  K3-2 Black |  K5-3 | |
|---|---|---|---|---|---|---|---|
Customer Reviews | — | — | — | — | — | — | — |
Price | — | — | — | — | — | — | — |
Screen Size | 15.6inch | 15.6inch *3 | 15.6inch *2 | 15.6inch x 2 | 15.6inch | 15.6inch | 14inch |
Input Interface | Type-C Port*2 Mini-HDMI Port*1 | Type-C Port*2 | Type-C Port*2 | Type-C Port*2 | Type-C Port*2 Mini-HDMI Port*1 | Type-C Port*2 Mini-HDMI Port*1 | Type-C Port*2 Mini-HDMI Port*1 |
Resolution | 1920 x 1080 | 1920 x 1080 | 1920 x 1080 | 1920 x 1080 | 3840 x 2160 | 1920 x 1080 | 1920 x 1080 |
Brightness | 300cd/m² | 400cd/m² | 300cd/m² | 300cd/m² | 400cd/m² | 300cd/m² | 350cd/m² |
Color Gamut | 72% NTSC | 80% NTSC | 72% NTSC | 72% NTSC | 100% sRGB | 72% NTSC | 72% NTSC |
Contrast Ratio | 1000:1 | 1200:1 | 1200:1 | 1200:1 | 1200:1 | 1000:1 | 1500:1 |
Panel Type | IPS LCD | IPS LCD | IPS LCD | IPS LCD | IPS LCD | IPS LCD | IPS LCD |
Speaker | Built-in Dual Speakers | / | / | / | Built-in Dual Speakers | Built-in Dual Speakers | Built-in Dual Speakers |
One Cable Connection | ? | ? | ? | ? | ? | ? | ? |
What should I know before buying this monitor?
1, Phones without full-featured Type-C port need an adapter to connect.
2, Laptops without full-featured Type-C port need connected via HDMI & USB C to USB A cable.
3, Not suppot bluetooth, wireless and WIFI connection. No battery. Not touchscreen.
What is each cable used for?
1, USB C to USB A cable, only for power supply.
2, USB C to USB C cable, for power supply & video output.
3, MINI HDMI to HDMI cable, only for video output.
Note: For HDMI connection, pls use USB C to USB A cable to power up the monitor.
Will any USB C to USB C cables work with this display?
The USB C to USB C cable should be the USB C 3.1 Version one, which supports video ouput. Or the monitor will fail to be connected.
I have charged the monitor for several hours. Why does it fail to turn on and show "no signal"?
KYY portable monitor does not come with a built-in battery.
Please connect the monitor with your device (like laptop, PC, Switch etc.) via [USB C to USB C cable] or [MINI HDMI to HDMI cable] & [USB C to USB A cable] for usage.
How to connect the monitor with my iPhone17?
For iPhone 15/16 /17 series, it can connect the monitor via USB C cable.
But pls use the USB C to USB C cable with the monitor package.
USB C-C cable should be USB C 3.1 Version which supports video output, or the monitor will fail to be connected.
KYY Portable Monitor Series
K3 Grey | X90G Grey | X90E (Windows Only) | X90D Black | K5 ( 4K Monitor) | K3-2 Black | K5-3 |
|---|---|---|---|---|---|---|
| Customer Reviews | ||||||
| — | — | — | — | — | — | — |
| Price | ||||||
| — | — | — | — | — | — | — |
| Screen Size | ||||||
| 15.6inch | 15.6inch *3 | 15.6inch *2 | 15.6inch x 2 | 15.6inch | 15.6inch | 14inch |
| Input Interface | ||||||
| Type-C Port*2 Mini-HDMI Port*1 | Type-C Port*2 | Type-C Port*2 | Type-C Port*2 | Type-C Port*2 Mini-HDMI Port*1 | Type-C Port*2 Mini-HDMI Port*1 | Type-C Port*2 Mini-HDMI Port*1 |
| Resolution | ||||||
| 1920 x 1080 | 1920 x 1080 | 1920 x 1080 | 1920 x 1080 | 3840 x 2160 | 1920 x 1080 | 1920 x 1080 |
| Brightness | ||||||
| 300cd/m² | 400cd/m² | 300cd/m² | 300cd/m² | 400cd/m² | 300cd/m² | 350cd/m² |
| Color Gamut | ||||||
| 72% NTSC | 80% NTSC | 72% NTSC | 72% NTSC | 100% sRGB | 72% NTSC | 72% NTSC |
| Contrast Ratio | ||||||
| 1000:1 | 1200:1 | 1200:1 | 1200:1 | 1200:1 | 1000:1 | 1500:1 |
| Panel Type | ||||||
| IPS LCD | IPS LCD | IPS LCD | IPS LCD | IPS LCD | IPS LCD | IPS LCD |
| Speaker | ||||||
| Built-in Dual Speakers | / | / | / | Built-in Dual Speakers | Built-in Dual Speakers | Built-in Dual Speakers |
| One Cable Connection | ||||||
| ? | ? | ? | ? | ? | ? | ? |
ABOUT KYY:
- Launched in 2015, KYY quickly became a leading brand on portable monitor, and has garnered praise from most users and influencers. KYY focuses on easy portability, high-quality, and wide connectivity, offers a quick connection between devices.
- KYY's vision is to provide the innovative solutions that are affordable, user-friendly, and purposeful, to create a better world, connecting with devices, connecting with love.
2026 New Arrivals
Most Popular
Now on Sale