The biggest change on the Vive Pro 2 is a new screen with a resolution of 5K (2448 × 2448 pixels), a refresh rate of up to 120Hz and a viewing angle of 120 degrees. This is a big upgrade compared to the original Vive Pro launched in 2018 with only 2880 x 1600 resolution, 90Hz refresh rate and 110-degree viewing angle. Vive Pro 2 also supports Display Stream Compression (DSC) technology, the first to be equipped on a virtual reality headset. DSC is a lossless standard that keeps image data transmitted to virtual reality glasses intact, often found on high-end monitors. HTC says the Vive Pro 2 brings “minimum motion blur”, a screen door effect, showing grid lines on many older VR headsets, which have been almost completely eliminated on the Vive Pro 2. Besides the screen, the Vive Pro 2 has handy features like an adjustable strap, a dial that adjusts to size quickly. The built-in headset is Hi-Res Audio Certified with 3D spatial sound and works with third-party headsets. The new Vive Pro 2 will also work with all Vive SteamVR accessories, including the new Vive tracker, the new Vive Facial Tracker, any SteamVR controller, and more. The look is sleeker and more sophisticated, along with a slightly more compact size than its predecessor. HTC Vive Pro 2 is currently priced at 799 USD. If you upgrade from Vive Pro version, there will be a promotional price of 749 USD. The full version with included accessories, including a controller and Base Station 2.0 motion tracker, is priced at $1,399. According to Theverge

Galaxy Upcycling at Home’s initiative Samsung was announced at the World Consumer Electronics Show 2021 (CES 2021) earlier this year and is now being tested in beta in several markets such as the US, UK and South Korea. This feature can alert you to the sounds of crying babies or turn on the lights when the light levels drop In this beta, Samsung will allow users to turn old phones into smart home devices that work through Samsung’s SmartThings app, which has two new modes: sound sensor and light sensor. Owners of certain smartphones can download the update to turn the device into a smart home sensor with some functions such as being able to detect the sound of a crying baby or turn on the light when it’s dark. The program is limited to certain smartphones released in 2018 or later. While it’s only recently applied to a few smartphones, it’s a good, accessible service that can help users make use of their old devices. Samsung says the sound sensor mode will help to accurately distinguish sounds in everyday surroundings, and users can choose to save certain recordings. For example, if the device detects sounds such as a baby crying, dog barking, cat sounding, or knocking on the door, it will send an alert directly to the user’s smartphone and the user can hear the sound. Be recorded. Whereas the light sensing mode simply turns your phone into a light sensor, allowing it to detect the level of sunlight or room light to automatically turn on the lights. Samsung says this update includes battery optimization needed to keep the phone powered up and acting as a sensor for long periods of time, though the company didn’t indicate uptime. between charges. Samsung says the “Galaxy Upcycling at Home” feature is available on all S, Note and Z series released in 2018 (S9, Note9 and above) running Android 9 or higher and will be available in the future. More smartphones are supported. Samsung’s upgrade program marks a very humble starting point, and the company can do more if it wants to limit e-waste and make old devices useful. So far, the program has only used microphones and light sensors on older devices. Hopefully in the future, Samsung will take advantage of the cameras of old smartphones to turn old smartphones into IP cameras. Phan Van Hoa (According to Arstechnica, Theverge)