Realme X3 features a 6.6-inch full-HD+ LCD display with a refresh rate of 120Hz, up to 480 nits brightness and Corning Gorilla Glass 5 protection. There is a punch-hole module on the front to house dual selfie cameras.
It is powered by Snapdragon 855+ SoC with 12GB of LPDDR4X RAM and 256GB of UFS 3.0 storage. The phone also features a side fingerprint scanner for security.
Realme X3 comes with a quad rear camera setup that includes a 64-megapixel primary sensor with f/1.8 aperture, an 8-megapixel sensor with a wide-angle f/2.3 lens and 119-degree field of view and a 2-megapixel sensor with an f/2.4 macro lens. On the front, the phone has a dual selfie with a 16-megapixel camera with Sony IMX616 sensor, f/2.5 aperture and, 8-megapixel camera 105° ultra-wide sensor with f/2.2 aperture
The phone pack 4,200mAh battery with 30W Dart charge fast charging that can charge the phone from 0 to 100% in 55 minutes. It runs Android 10 with realme UI.