vivo X300 Ultra Unveiled at MWC 2026 with 400mm ZEISS Telephoto Power

At Mobile World Congress 2026, vivo pulled the wraps off what could be one of the boldest camera phones of the year: the vivo X300 Ultra. And this time, it is not just about another spec bump. It is about turning your smartphone into something that feels closer to a professional camera kit you can slip into your bag.