Vivo is expected to host a launch event in March to announce the Vivo X300 Ultra. Rumours suggest that the brand may also unveil the Vivo X300s as an incremental upgrade over the Vivo X300, which was announced in October 2025 in China. A new leak, courtesy of tipster Digital Chat Station, has revealed the key specifications of the X300s.
Vivo X300s specifications (rumored)
According to the tipster, the Vivo X300s will have a flat display surrounded by equally sized slim bezels on all four sides. On the back, it will feature a circular camera module.
On the front, it will sport a 6.78-inch 1.5K OLED screen, while the rear panel will house a 200-megapixel main camera accompanied by a mid-tier periscope telephoto camera. Under the hood, it will feature the upcoming Dimensity 9500 Plus chipset, which is said to be an overclocked version of the existing Dimensity 9500.
The X300s will pack a large battery of around 7,000mAh capacity. In comparison, the X300 features a smaller 6,040mAh battery. It will also include other features such as an ultrasonic in-screen fingerprint sensor and a waterproof chassis.
While there are speculations about the Vivo X300 Ultra’s global release, the X300s may remain confined to the Chinese market for about a year. The reason behind this is that the Vivo X200s, which debuted in China in April 2025, is expected to be rebranded as the Vivo X200T globally later this month or in early February. Similarly, the Vivo X300s may be rebadged as the Vivo X300T for the global market in 2027.
In related news, Vivo’s March launch event in China will not only see the arrival of the X300 Ultra and X300s but also the brand’s first-ever action camera. However, the rumor mill is yet to leak concrete details about the action camera’s specifications and features.
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