A Realme smartphone bearing model code RMX2142 and believed to be the Realme X3 bagged 3C certification last week, revealing 30W charging and 5G support in the process. Now that smartphone has appeared on TENAA with new details. Realme X2 According to TENAA, the RMX2142 is 8.9mm thick and sports a 6.57" display. The resolution of the screen isn't mentioned, but it could be 1080p. The listing further reveals that RMX2142 packs a 4,100 mAh battery, which will likely draw power through a USB-C port. TENAA doesn't reveal any other details about the smartphone, so we'll have to wait...
Source: https://www.gsmarena.com/realme_x3_specs_tenaa-news-42743.php