Realme's X series has evolved along as the OEM evolved over the months. The series started off with the Realme X, which was seated as an early mid-range device. It then moved on to the Realme XT, then the Realme X2 and X2 Pro, and then to the Realme X50 Pro 5G. The jump from the X2 series to the X50 did not make a whole lot of sense from the perspective of branding and marketing, but those two are highly susceptible to consumer expectations and so we avoid attempts at making sense out of them. The jump did initially signal that the X series was moving ahead with the X50 branding, but it seems that Realme has some other plans as the Realme X3 was just spotted as it went through certification.
A Realme device with the codename RMX2086 just passed through Thailand's NBTC certification website. Apparently, the marketing name of the device will be "Realme X3 SuperZoom". The certification does not give us other consumable information beyond this name. What we can conclude from this is that there is a proper Realme X2 series successor in the works, and the device will likely have some sort of focus on zoom capabilities. The branding focus may have originated from the recent trend of advertising zoom capabilities as a talking point, as seen on several flagships and on some of Realme's direct competitors such as the Redmi K30 Pro Zoom Edition. It isn't immediately clear if the phone will have decent optical zoom capabilities or if it will primarily rely on digital zoom. From an advertising and marketing perspective, digital zoom will likely be highlighted simply because it is a bigger number. But as per recent multi-camera trends, there is likely to be some level of optical zoom also present alongside.
Source: NBTC