If you like to game on a smartphone, but wouldn’t mind a bigger screen, Asus has a solution for you: a new portable gaming monitor with its own built-in battery. The ROG Strix XG16 is a 15.6-inch monitor slated to go on sale in December. Asus introduced it today alongside its upcoming gaming smartphone, the ROG Phone 3. The monitor is designed to easily fit in a backpack. Pull it out, hook up your smartphone via the monitor’s USB-C port, and you're ready to game. The product also comes with a kickstand in the back, allowing you to easily prop it up on a table, in portrait or landscape mode. The ROG Strix XG16 features an IPS panel, which has a 1080p resolution and a 144Hz refresh rate. According to Asus, the monitor’s 7,800mAh battery can last for up to three hours on a single charge. The display also comes with a micro-HDMI port, enabling it to become a second monitor for your PC. “One USB Type-C port supplies power to the monitor and another Type-C port lets you connect ...