PX WFD-4K Ultra Review: Seamless 4K Mirroring for Every Device

In an era where we consume almost everything on our smartphones, there is often a moment where the small screen just doesn't cut it. Whether you're sharing vacation photos with family, giving a professional presentation, or trying to play mobile games on a massive display, mirroring is the answer. Enter the PX WFD-4K Ultra. This compact device from the Taiwanese company PX is designed to bridge the gap between your mobile devices and external displays like TVs or monitors, promising a high-quality experience without the usual cable clutter.

Price and Availability in Indonesia

The PX WFD-4K Ultra has officially landed in the Indonesian market with a competitive price tag of Rp698,000. For a device that offers 4K resolution and wide compatibility, this is quite an investment for your home entertainment or office setup. To give buyers peace of mind, PX offers a generous 18-month warranty. You can easily find it on various major e-commerce platforms including Tokopedia, Shopee, Lazada, Akulaku, Blibli, and Bukalapak.

Compact Design That Fits Anywhere

One of the first things you'll notice about the PX WFD-4K Ultra is its incredibly small footprint. It is literally smaller than the palm of an adult hand. This design philosophy is a huge plus because it doesn't take up any significant space on your TV console or desk. Its unobtrusive look allows it to sit quietly next to your monitor without being an eyesore.

The exterior is minimalist. On the top, you’ll find the PX logo accompanied by a circular button featuring a white LED indicator. This light tells you whether the device is powered on. A long press on this button acts as the power switch, allowing you to turn the unit on or off easily. Around the sides, PX has integrated cooling vents to dissipate heat during operation, ensuring the device stays stable even during long streaming sessions. The bottom features thin rubber feet that provide enough grip to keep the device from sliding around.

Modern Connectivity Options

Moving to the back, the PX WFD-4K Ultra keeps things modern. It features a USB-C port for power (requiring 5V/2A) and an HDMI 2.0 port for video output. The choice of USB-C is a welcome one, as most of us already have these cables lying around, making it much more convenient than older proprietary or Micro-USB connections. In the box, PX provides both a USB cable and an HDMI cable, each about 50 cm long, which is usually enough to reach from a TV’s USB port to the HDMI input.

Simple Setup and User Interface

Setting up the device is surprisingly straightforward. Once connected to power and your screen, the monitor will display an interface containing all the necessary details: the device's SSID, Password, IP address, and connection status. It even provides two QR codes—one for connecting to your WiFi router and another for initiating the mirroring process from your phone.

It is important to note that the PX WFD-4K Ultra relies on a WiFi router to function. During the initial configuration, you connect your phone to the device's own SSID first. Then, you scan the QR code to access the EZCast settings page via your mobile browser using the displayed IP address. From there, you go to the Internet menu, select your home or office WiFi, and enter the password. Once connected, the icon on your screen will turn from gray to blue, signaling that you are ready to go.

Universal Compatibility Across OS

The real strength of the PX WFD-4K Ultra lies in its versatility. It supports almost every wireless protocol out there, including Miracast, AirPlay, DLNA, and Chromecast. For iOS users, you simply use the built-in AirPlay Mirroring feature. Android users might find the feature under different names depending on their brand—such as Samsung’s SmartView, OPPO’s ScreenCast, vivo’s Smart Mirroring, or Xiaomi’s Cast.

During testing with a Samsung device using SmartView, the connection was nearly instantaneous. No third-party apps were required. However, if your specific device doesn't have a native casting feature, you can still use the EZCast app to get the job done. A clever detail is that the PX WFD-4K Ultra also acts as an Access Point, meaning your phone can stay connected to the internet while mirroring.

Performance: 4K, HDR, and Low Latency

When it comes to performance, the PX WFD-4K Ultra doesn't disappoint. It supports dual-band WiFi (2.4GHz and 5GHz) to ensure a stable connection. In our tests using a 5GHz router, the image and audio transmission were sharp and clear. While there is a tiny bit of latency—which is standard for wireless mirroring—it is minimal enough that the experience remains responsive.

The device supports resolutions up to 4K at 60Hz and even supports HDR, provided your source device and TV are compatible. For those who want to optimize their experience, there are dedicated 'Video' and 'Game' modes within the Miracast settings. Even when playing a demanding game like Genshin Impact, the latency was less than a second, making it perfectly tolerable for casual gaming and combat.

Smart Features for Daily Use

A standout feature is the 'One Click Switching.' By pressing the physical button on top of the device, you can manually toggle between Portrait and Landscape modes. This is incredibly useful if you’re switching from scrolling through social media to watching a movie. Additionally, the device can automatically follow the orientation of your smartphone. While multiple devices can stay paired with the PX WFD-4K Ultra, only one can mirror its screen at a time; you’ll need to stop the current stream before another device can take over.

Final Verdict

Overall, the PX WFD-4K Ultra is a powerful, tiny tool that solves the problem of cross-platform screen sharing. Whether you use iOS, Android, or Windows, this device acts as a universal hub. With its easy setup, 4K HDR support, and stable 5Ghz connectivity, it’s a great alternative for anyone looking to upgrade their viewing experience without buying a whole new Smart TV. If the quality of their other products like TV antennas and USB hubs is any indication, PX has another winner on their hands with this one.