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Meet UGOOS SK4 TV Box
I have tested countless TV boxes over the years here at China Gadgets Reviews, from budget sticks to high-end media players, but unboxing a new UGOOS device always feels different. They don’t just build streaming boxes; they build tools for power users. With the release of the UGOOS SK4, equipped with the cutting-edge Android 14 and the new Amlogic S905x5M-J processor, I was eager to see if the hardware finally caught up to their legendary software.
Unboxing the UGOOS SK4 Dolby Vision Android 14 TV Box was a refreshing experience—from the start, the packaging felt tight and purposeful, featuring a stylish, compact purple box, a well-built power adapter, HDMI cable, and a modern remote with both voice and gyro support for effortless control. Setting it up on my TV was seamless—within minutes, the device booted into a clean Android 14 interface, and the SK4’s signature UGOOS settings panel immediately impressed with its deep customization options, letting me tweak controls, remap buttons, and even fine-tune external accessories for a truly tailored setup.
Booting into Android 14 on a TV box for the first time is a treat. The interface is cleaner, snappier, and more responsive than previous generations. But the real magic happened when I started playing content. I fired up a few Dolby Vision test files, and the Amlogic S905x5M-J processor flexed its muscles immediately. The Dolby Vision support is not just a checkbox here; the contrast on my TV was deep, and the colors were vibrant. Whether I was streaming high-bitrate content from YouTube or local files via Plex, the AV1 decoding worked flawlessly, keeping bandwidth usage low without sacrificing picture quality. The Mali G310 V2 GPU handled the UI animations at a buttery smooth 60fps with zero stutter.
Performance-wise, the Amlogic S905X4-J quad-core ARM Cortex-A55 and Mali G31 V2 GPU delivered snappy, lag-free navigation, while 4GB of LPDDR4 RAM and 64GB eMMC storage proved more than enough for all my streaming apps and game launches. Dolby Vision made movies truly pop—colors were vivid, contrasts rich, and the overall cinematic effect was on par with high-end streaming solutions. AV1 and HDR10 support showed their strengths on newer services, making high-resolution streaming smooth even over Wi-Fi 6, while Gigabit Ethernet wired connections handled large downloads or UHD streams effortlessly.
Connectivity on the SK4 is modern and comprehensive: Wi-Fi 6 delivered stutter-free 4K streaming throughout my home, Bluetooth 5.4 paired instantly with my wireless headphones and controllers, and HDMI 2.1 output ensured absolutely crisp 4K visuals on my main screen. USB-C, USB 2.0, and SPDIF ports rounded out the hardware, covering all practical needs—whether for file transfer, peripherals, or audio.
What truly sets the SK4 apart is its software DNA: the signature UGOOS Controls Manager allowed me to tailor remote behavior, adjust mouse controls for games, and enable HDMI CEC features for full TV ecosystem integration. File sharing was a breeze thanks to Samba/NFS support, and media output was flawless, with Widevine L3, Dolby Audio, and Dolby Vision working as promised. Google Play and APK installation expanded the box’s capabilities beyond simple streaming, letting me turn my TV into a real multimedia, gaming, and smart home control center.
Streaming movies on the UGOOS SK4 using Netflix, and HBO Max has been exceptionally smooth and immersive—the picture quality in Dolby Vision is absolutely stunning, with deep contrast, rich colors, and sharp detail that brings films and shows to life in my living room. The Android 14 interface is responsive, making it quick to switch between different streaming apps, and the fast Wi-Fi 6 ensures there are no buffering delays even with high-bitrate 4K content. Widevine L3 support has allowed flawless playback on these platforms, and the combination of high dynamic range and efficient AV1 decoding noticeably enhances the cinematic experience, especially during dark scenes or action-heavy blocks.
Playing 4K video content on YouTube with the SK4 has been a delight, showcasing the box’s hardware and codec prowess—streams load quickly, navigation is ultra-responsive, and there’s no noticeable lag or dropped frames even at maximum resolution. HDR10 and HLG support deliver stunning color accuracy and natural highlights, while the HDMI 2.1 output ensures crystal-clear visuals on my television. The advanced sound output, paired with Dolby Audio, makes music videos and nature documentaries sound vibrant, rounding out the immersive multimedia edge that UGOOS always promises.
When it comes to gaming, titles like Hungry Shark Evolution and Beach Buggy Racing paired with my Bluetooth gamepad provide a console-like experience—the low input latency and smooth wireless performance make for responsive controls, and the graphics rendering is impressively fluid at 1080p and even upscaled 4K. The customizable Controls Manager allowed me to tailor the gamepad’s button mapping exactly to my preferences, and Bluetooth 5.4 ensured there were no disconnects during intense gameplay sessions. Whether solo or with friends, the SK4 handled longer play sessions without any stutter or overheating, reinforcing its reputation as a versatile entertainment powerhouse
In daily use, the SK4’s fast wake, responsive UI, stable power delivery, and continuous OTA feature updates made the device feel truly next-gen. Whether watching films in Dolby Vision, playing emulated games, or just browsing with a connected air mouse, every aspect of the experience reaffirmed UGOOS’s reputation: the SK4 isn’t just a great Android TV box, it’s a complete smart entertainment upgrade—one that’s both approachable for casual users and rewarding for the true enthusiast.
After only a week of testing, the UGOOS SK4 has permanently replaced my previous daily driver. It isn’t just a streaming box; it’s a comprehensive media hub. The combination of the new Android 14 OS, the powerful S905x5M-J chipset and UGOOS’s unmatched software customization makes it the top choice for tech enthusiasts in 2025.
UGOOS SK4 TV Box Main Features
– Ugoos SK4 settings. Every SK4 device has a set of Unique Features which you have no chances to meet on any other Android devices. List of features will be continuously increased in future OTA updates.
– Samba Server, NFS & CIFS Clients. Your SK4 now is a file server in one click due to Ugoos Settings features. Simple installation and security settings let you share files within your local network very easy.
– Ugoos Remote Server. Is the way how to control your TV Box using Android smartphone.
– Ugoos Bluetooth Remote. The Bluetooth remote is a standard accessory for SK4 Easy pairing in several clicks. Airmouse function and voice search for better experience and smooth control.
– Extended Screen & Audio Settings. You can control brightness, screen position, color balance and set up forced orientation. Audio settings helps to make sure you listen to exact sound format you need.
– AI-SR NPU. AI Super Resolution NPU for better image quality and supports up to 4K HDR output in SK4.
– Bluetooth v5.4. Ugoos SK4 supports Bluetooth 5.4 technology. Bluetooth 5.4 LE Ugoos SK4 is up to 2 times faster than other TV Boxes with Bluetooth 4.2.
– Controls Manager. Ugoos TV Box has a row of brand unique settings making your control abilities more flexible than before. Customize any accessory work with Button Manager. Menu Manager makes a “MENU” button multifunctional. Mouse settings helps to adjust this controller at your taste.
UGOOS SK4 TV Box Highlights
✅ Powerful Performance
✅ Stunning Visuals & Audio
✅ Advanced Connectivity
✅ Smart Features
✅ Great Design & Build.
Real-life scenarios where UGOOS SK4 TV Box can be quite useful
– Transforming Any TV into a Premium Home Cinema. Dolby Vision, HDR10, HLG, and flawless AV1 decoding make the SK4 perfect for movie nights — bringing cinema-grade contrast, color depth, and clarity to any living room.
– Seamless 4K Streaming During Peak Internet Hours. Wi-Fi 6 and efficient codecs ensure smooth streaming even when everyone in the house is online — no buffering, no frame drops.
– A Lightweight Gaming Console for Kids and Adults. Connect a Bluetooth controller and launch Android games like Beach Buggy Racing or Hungry Shark Evolution with console-like smoothness and low latency.
– Retro Gaming & Emulator Station. With its Mali G31 V2 GPU and powerful CPU, the SK4 easily handles classic console emulators — perfect for turning nostalgia into a weekend entertainment hub.
– Multi-Room Media Server via Samba/NFS. Use the built-in Samba server to turn the SK4 into a home storage hub, sharing photos, 4K videos, documents, and music to every device on your network.
– Smart Home Dashboard Controller. Install your preferred smart home apps and use the SK4 as a command center for cameras, sensors, smart lights, and automations — all visible on a big screen.
– Business Presentations & Meeting Room Display. HDMI 2.1 output and quick boot times make it perfect for offices needing a reliable Android-based device for slideshows, Zoom calls, dashboards, and wireless casting.
– High-Bitrate Local Media Playback via USB or NAS. Its powerful processor and codec support handle heavy 4K MKV files effortlessly — ideal for users who maintain a local Plex or Kodi library.
– Online Learning & Remote Work on the Big Screen. Attach a wireless keyboard and mouse to turn your TV into a massive screen for browsing, video courses, email, Google Docs, and educational apps.
– YouTube 4K HDR Streaming Without Stutter. The SK4’s AV1 hardware decoding ensures crisp, smooth 4K playback — perfect for tech reviews, tutorials, or nature documentaries.
– AirPlay/Cast Hub for Phones and Tablets. Families can easily mirror content for photos, videos, or presentations, making the SK4 a convenient bridge between mobile devices and the TV.
– Music Listening Through Home Theater Systems. With SPDIF output and Dolby Audio support, the SK4 integrates beautifully with soundbars and AV receivers — ideal for high-quality music playback from Spotify, Tidal, or local files.
– Digital Signage for Small Shops or Waiting Rooms. Thanks to Android 14’s stability and Ugoos remote-control tools, the SK4 can run ads, product slideshows, menus, or information screens with 24/7 reliability.
– Movie Nights Outdoors with a Projector. Pair it with a portable projector via HDMI 2.1 and enjoy Dolby Vision/HDR movies in the backyard — the compact size and fast Wi-Fi make setup a breeze.
Ports & Interfaces
1 x HDMI 2.1
1 x USB Type-C
1 x USB 2.0
1 x SPDIF Optical Output
1 x 12V 1A Power port
1 x Reset button
1 x LED light Indicator
UGOOS SK4 TV Box Specifications
Brand: Ugoos
Model: SK2
Type: Android TV Box
Operation System: Android 14
Language: Multi-Language support
CPU: Amlogic S905x5M-J ARM Cortex-A55 CPU
GPU: ARM Mali G310 V2
RAM: LPDDR4 4GB
Storage Capacity (Flash): 64GB （EMMC）
WIFI: 2.4G/5G 802.11a/b/g/n/ac/ax 2T2R
Bluetooth: version 5.4
Power Supply: DC Power adapter 12V / 1.0A
HDR: Support
CEC: Support
Board: umx5msks
Android TV OS version: 14
Firmware version: 2.0.3
Android TV OS version: umx5msks-userdebug 14 UD2A.240505.001.W1 eng.ugoos.20251028.172612 test-keys
Build ID: UD2A.240505.001.W1
Kernel version: 5.15.170-android14-11-g2afdaeb13340
Kernel Architecture: armv8l
API Level: 34
What’s In The Box
1 x UGOOS SK4 TV Box
1 x English User Guide
1 x HDMI Cable
1 x BT+IR Smart Remote
1 x Power Adapter model RJ-SKY120100E605 12W
1 x Packaging Box
Photo gallery full album here. Official page here. Read more about Ugoos products here.
About Ugoos Ugoos Industrial is a China Mainland based company with international developers team. Main directions are: ARM Hardware & Software Development, TV Boxes and Dongles, Digital Signage and Advertisement Solutions. Ugoos Industrial Co., Ltd. is the first on the market created Dual core and Quad core TV dongle. Our main directions are designing, R&D, manufacturing, and marketing on the Android HD Media Players market. In early 2011, Ugoos developed the first Dual core Android TV dongle in the world. As the leading company of Smart TV dongles and TV boxes in China, Ugoos has a European Development Team in China. Our team always insists on the principles of high quality products, quality service, and win-win relationships.
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