Vivo X300 Ultra, X300s Launch Date Leaked; Colour Options Also Revealed

Vivo has been teasing its next set of flagship phones for a while now. The company has not announced an official launch date yet, but a new leak has changed that. According to a screenshot circulating on the Chinese social media platform Weibo, the vivo X300 Ultra and the vivo X300s are set to launch in China on March 30, 2026. The devices are expected to go on sale starting April 3, 2026. The same event is also expected to feature the vivo Pad 6 Pro tablet.

The screenshot does not just reveal the launch date. It also gives us a look at the RAM, storage, and colour options for both phones. Here is what it shows. Its show that Vivo X300 Ultra and Vivo X300s start with 12GB RAM + 256GB storage, 12GB RAM + 512GB storage, 16GB RAM + 512GB storage and goes up to 16GB RAM + 1TB storage. The top-end 16GB + 1TB variant is tipped to support satellite communication a feature that has not been confirmed officially but has appeared in multiple leaks.

Vivo X300s also will launch in four storage option.12GB RAM + 256GB storage, 12GB RAM + 512GB storage, 16GB RAM + 512GB storage and goes up to 16GB RAM + 1TB storage. The top-end 16GB + 1TB.

Both phones share the same RAM and storage configurations, which is a bit of a surprise. The X300 Ultra is the more premium of the two, so it was expected to offer a wider storage range. But based on the leak, the configurations are same.

Both phones have different colour options, and the difference gives a hint at how vivo is positioning them.

The vivo X300 Ultra is tipped to come in three colours  Black, Silver, and Green. The vivo X300s gets a slightly broader palette Black, Green, Purple, and White. The addition of purple and white makes the X300s feel a little more accessible and aimed at a wider audience compared to the Ultra.

For those wondering about the vivo Pad 6 Pro, the leak also tips three colour options for the tablet Blue, Purple, and Grey with storage option in 8GB + 256GB, 12GB + 256GB, 12GB + 512GB, 16GB + 512GB and 16GB + TB RAM and storage options.

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The vivo X300 Ultra is shaping up to be one of the more complete flagship phones of 2026. Phone come with audio upgrades smarter microphone, better recording.

The X300 Ultra is expected to feature a 6.82-inch LTPO OLED display with 2K resolution and a 120Hz adaptive refresh rate. The panel is from BOE and is expected to have a flat design with a right-angle metal mid-frame.

Whereas the X300s expected with 6.78-inch flat AMOLED display with advanced BOE Q10 Plus panel material.

The phone is tipped to be the first smartphone to use the Snapdragon 8 Elite Gen 5 chipset. This chip uses 3-nanometer lithography and is designed for a balance between performance and power efficiency. Geekbench results have already surfaced showing the chip inside the X300 Ultra.

The camera system is the headline feature of the X300 Ultra. 200MP Sony LYT901 main camera with a near 1-inch sensor size, 200MP Samsung HPB periscope telephoto lens developed in partnership with ZEISS, 50MP Sony LYT828 ultra-wide camera, 5MP multi-spectral sensor for improved colour accuracy, 50MP front camera with autofocus.

Vivo X300s has main camera of 200MP sensor, 50MP Sony LYTIA-818 sensor (1/1.28-inch) ultra-wide camera, 50MP telephoto camera with periscope lens and 5MP multispectral camera.

If confirmed, the dual 200MP rear camera setup would make the vivo X300 Ultra the first commercial phone with two 200MP lenses. The telephoto lens is also expected to support continuous optical zoom, similar to what the Xiaomi 17 Ultra offers.

The X300 Ultra is tipped to come with a 7,000mAh battery  a significant jump from the X300 Pro’s 6,510mAh and the standard X300’s 6,040mAh. The phone is expected to support 100W wired fast charging and 40W wireless fast charging.

Vivo X300s packs with 7,100 mAh battery with 144 with a 144Hz refresh rate. This is largest battery used in flagship X series phone.

There are other features like IP69 rating  protection against high-pressure water jets, Ultrasonic under-display fingerprint sensor, USB Type-C Gen 3.2 port  and OriginOS 6 based on Android 16

The X300 Ultra is confirmed for a global launch. vivo showed the phone at MWC 2026 in Barcelona on March 3, 2026, where the company confirmed it would be released outside China. Certification approvals in multiple regions have already been spotted, pointing to a global rollout likely in the second quarter of 2026.

The leak paints a clear picture of what to expect from vivo on March 30. The X300 Ultra is the flagship for buyers who want the absolute best in camera hardware and top-end specs. The X300s is for buyers who want a large battery, a smooth 144Hz display, and a strong camera setup in a phone that is easier to live with day to day.