Comparison between VIOFO A139 Pro dashcam and Yi Technology Ultra Dash Camera.

The VIOFO A139 Pro is an advanced dashcam featuring 4K Ultra HD resolution for superior video clarity. The front camera uses Sony's latest STARVIS 2 IMX678 sensor for enhanced low-light performance and 4K HDR technology to balance bright and dark areas in the footage. It supports up to three channels, allowing for front, rear, and interior recording. The rear and interior cameras record in Full HD 1080P. The dashcam includes features such as dual-band Wi-Fi for fast data transfer, built-in GPS for precise location tracking, and a supercapacitor for reliability in extreme temperatures. The A139 Pro also offers a buffered parking mode, voice notifications, and support for an optional CPL filter to reduce glare. The VIOFO A139 Pro stands out for its advanced video quality, reliable performance, and comprehensive features, making it a top choice for drivers seeking a high-end dashcam solution.

The Yi Technology Ultra Dash Camera is designed to provide high-quality video recording with its 2.7K resolution and 140° wide-angle lens. It features a dual-core chip for efficient processing, and an f/1.9 large aperture lens combined with a high-sensitivity sensor for excellent low-light performance. The camera supports H.264 video compression for efficient storage and includes built-in Wi-Fi for easy file transfer and real-time playback through the Yi Dashcam app. The 2.7-inch widescreen display and intuitive interface make it user-friendly, and the integrated voice control feature allows for hands-free operation. The dashcam also includes a 3-axis gravity sensor for emergency recording and WDR technology for enhanced image quality in varying lighting conditions.