Portable Monitor 4K 23.8" QLED| 400 Nits 24" Large Monitor | 3840 * 2160 UHD 100% DCI-P3 | 1MS FreeSync | USB-C & HDMI | VESA & Stand | Second Screen for Computer, Mini PC, Game Consoles
*Price sourced from Amazon.com. Last updated 2026-07-22. Price and availability subject to change.
Bottom line: The Portable Monitor 4K 23.8" QLED| 400 Nits 24" Large Monitor | 3840 * 2160 UHD 100% DCI-P3 | 1MS FreeSync | USB-C & HDMI | VESA & Stand | Second Screen for Computer, Mini PC, Game Consoles is a niche pick — read recent reviews before buying in the displays & upscalers category, priced around $389.98. Read recent reviews carefully before committing.
SpecPicks Verdict
SpecPicks classifies UPERFECT Portable Monitor 4K 23.8" QLED| 400 Nits 24" Large Monitor… as a niche pick — read recent reviews before buying in the displays & upscalers category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. UPERFECT's positioning sits within the broader category mid-tier. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for displays & upscalers of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Backed by UPERFECT's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- 23.8" Efficiency Smart Monitor: 23.8” portable monitor achieves an ideal balance between screen space and desktop occupancy, providing 18% more visible area than a standard 21.5” monitor, while seamlessly installing in compact workspaces, dual screen setups, or hybrid home offices(Warm Safety Reminder For best comfort and safety, place your monitor at or slightly below eye level. Avoid steep downward angles that maystress the stand and cause the monitor to fall , especially with larger screens)
- 4K True Color Immersion: The 4K UHD (3840x2160) ultra-high resolution of this 24" laptop monitor has excellent accuracy and consistency, with each color tone precisely tuned from the darkest black to the most vivid highlights, creating a profound "immersive" experience - whether you're exploring the vast gaming world or editing high-resolution photos, it takes you to the core of content
- QLED True Color Anywhere: QLED technology provides a wider color volume (100% DCI-P3) of purer red, darker green, and brighter blue than standard IPS panels. The monitor maintains unwavering color accuracy at peak brightness of 400nit, turning your screen into an immersive cinema
- 400nits Cinematic Vision: With a brightness of 400 nits, it performs well in various lighting conditions, allowing you to enjoy rich details and strong contrasts whether you are editing videos or watching movies
- VESA and STAND: Equipped with a built-in 180° adjustable stand, it is easy to adjust the angle of the portable monitor and find the perfect ergonomic position. Built in VESA (75x75@M4) On the back of the monitor, it can be installed on the wall or desktop( Attention: Continuous brightness -USB-C power supply - 300 nits; Peak brightness - external power supply - 400 nits)
Full Specifications
| Brand | UPERFECT |
|---|---|
| Color | Black |
| Shape | Rectangular |
| Voltage | 12 Volts |
| Brightness | 400 Candela |
| Model Name | Up-238-4k |
| Resolution | 4K UHD 2160p |
| Unit Count | 1.0 Count |
| Color Gamut | 100 |
| Screen Size | 23.8 Inches |
| Aspect Ratio | 16:9 |
| Connectivity | USB-C |
| Display Type | QLED |
| Model Number | 1130-1 |
Ready to buy?
UPERFECT Portable Monitor 4K 23.8" QLED| 400 Nits 24" Large Monitor | 3840 * 2160 UHD 100% DCI-P3 | 1MS FreeSync | USB-C & HDMI | VESA & Stand | Second Screen for Computer, Mini PC, Game Consoles is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-07-22. Price and availability subject to change.
Related Displays & Upscalers
More guides & deep dives from the SpecPicks archive
Browse all articles & guides →- How to Build a Windows 98 Retro PC in 2026
- Best Retro Handhelds in 2026 — From $35 to $500
- RTX 4070 Super vs RX 7800 XT — Which to Buy in 2026
- Best 1440p Gaming GPUs in 2026
- Best Budget Gaming PC Build 2026 — ~$1,000 ($800 on Sale)
- Emulation Hardware in 2026: FPGA, Software, and Cart-Reader Ecosystems
- The Complete Voodoo5 5500 AGP Driver Guide (2026 Edition)
More reviews from the SpecPicks archive
Browse all reviews →- Single vs. Dual Channel Memory: Intel Core Ultra 7 270K
- Best Capture Setup for Console Streaming in 2026: Elgato Cam Link 4K + PS4 Pro
- vLLM vs Ollama on an RTX 3060 12GB: Which Server Wins?
- Patch-to-Exploit in Hours: Why a Local Security LLM Rig Now Makes Sense
- GameSir G7 SE vs 8BitDo Pro 2: Best Wired-Feel Controller for PC & Steam Deck
- Raspberry Pi 4 8GB vs Zero 2W for an AI Camera (2026)
- GLM-5.2 vs Frontier Models on GDPval-AA: What It Means for Local Builders
- Best Budget SSD for Gaming and Local-LLM Storage in 2026
- Rescue a Dying Vintage IDE Drive by Cloning It to CompactFlash
- Best Budget 4K Gaming Monitor Under $400 in 2026: SANSUI vs KOORUI Mini-LED
- Best Wireless Controller for PC Gaming in 2026
- Best GPU for 1440p Ultrawide Gaming in 2026: Performance Tier Breakdown
- RetroPie Handheld Build Guide 2026: Hardware & Setup
- Best AMD CPU for Gaming in 2026: Our Top 5 Ryzen Picks
- Transcend CF133 CompactFlash as a Windows 98 Boot Drive: Setup & Gotchas
- AMD Ryzen AI Max 400 'Gorgon Halo': 192GB Unified Memory APU Hits $3,999
- Blue Yeti vs HyperX QuadCast 2 S: Best USB Mic for New Streamers
- Logitech G29 vs HORI Force Feedback: Which Sim Wheel for Beginners?
- AOC U27G4XM 4K 160Hz Review: Speed, Flexibility, Value
- Glide on Modern PCs: dgVoodoo2 + nGlide for 3dfx-Era Games (2026)
- Samsung Winds Down Chip Production Six Days Before Strike: What Memory Buyers Should Do Right Now
- Best Streaming Gear for New Streamers in 2026: 5 Picks to Start On-Air
- Advanced Shader Delivery on the RX 9070 XT: Benchmark Results
- KDE KWin Gaming Patches 2026: Linux Latency vs Windows