Vivo X300 Ultra and X300s Confirm China Launch on March 30

Vivo confirms that the X300 Ultra and X300s will launch in China on March 30 at 7 pm local time, with 4:30 pm IST noted for reference. The company also provides design details for the X300 Ultra after first showcasing it at Mobile World Congress 2026 earlier this month and had teased a filmmaking kit and a telephoto converter lens as part of its prelaunch material. Pricing details and exact specifications were not disclosed in the initial communications. A post on Weibo says the X300 Ultra and X300s will be launched in China on March 30 at 7 pm local time, and reveals the X300 Ultra design with at least a green color option confirmed.

Design and build details

The Vivo X300 Ultra features a circular rear camera module housing a triple camera setup. Zeiss branding appears on the camera island, signaling tuning from Zeiss. The handset shows a power button and volume controls on the right side and a dual-tone rear panel. A flat metal frame completes the overall look. The preview materials confirm a green color option for the Ultra model, among possibly other color choices.

Performance and previews around the X300s

Separately, tech blogger Anvin spotted the Vivo X300s on Geekbench, revealing its performance and key specifications. The listing shows 16 GB of RAM, Android 16, and an octa‑core processor described as the flagship 3 nm MediaTek Dimensity 9500, with a Mali G1 Ultra MC12 GPU mentioned in the entry. The SoC configuration lists a prime core clocked at 4.21 GHz, three performance cores at 3.50 GHz, and four efficiency cores at 2.70 GHz. The Geekbench scores shown include a single-core result of 3,310 and a multi-core result of 10,141.

• RAM: 16 GB
• Operating system: Android 16
• SoC: MediaTek Dimensity 9500 3 nm octa-core
• GPU: Mali G1 Ultra MC12
• Geekbench scores: single core 3,310; multi-core 10,141

Pricing details for both models are not disclosed in the current communications, and no exact specifications beyond those spotted in Geekbench are confirmed. The X300 Ultra was first shown at MWC 2026 earlier this month, where Vivo also teased a filmmaking kit and a telephoto converter lens as part of its marketing push. The company has not issued a full spec sheet or pricing ahead of the launch, and the March 30 event in China will likely serve as the primary disclosure point for these devices. Industry observers note that the release timeline aligns with the original tease, but official confirmation on pricing and final specifications remains pending.