The ASUS TUF Gaming VG289Q1A is a 4K gaming monitor and you can buy it from Amazon for around USD $350-$429 – https://amzn.to/2WGToKT
Taken from Wccftech … ASUS has announced the TUF Gaming VG289Q1A Gaming monitor, which features a 28-inch screen size, a 4K resolution, and a maximum refresh rate of up to 60 Hz. These features make this monitor perfect for any gaming setup. ASUS has not announced any pricing for this gaming monitor or any availability information for the TUF Gaming VG289Q1A Gaming monitor.
The TUG Gaming VG289Q1A Gaming monitor offers a 4K resolution and a refresh rate of up to 60 Hz.
The TUF Gaming VG289Q1A Gaming monitor features a resolution of 4K, or 3,840 x 2,160, which offers a large amount of screen space while still creating stunning crisp and detailed visuals. This higher resolution gives users four times the pixels of similar-sized displays, allowing for more desktop space. This display offers support for AMD’s FreeSync technology, which reduces screen-tearing and keeps the gameplay incredibly smooth.
Source: Wccftech