vivo has expanded its X300 family with two new flagship models, the vivo X300s and vivo X300 Ultra, both announced in China on March 29, 2026. The launch matters because it pushes the series further into premium territory with a stronger focus on mobile photography, faster displays, and top-tier performance.
The new phones arrive as successors to the previous generation that debuted in April 2025, and they are clearly built for users who want more than a standard flagship experience. vivo is not just adding new variants here; it is sharpening the lineup with larger sensors, faster charging, and accessories aimed at serious camera users.
Camera hardware takes the spotlight
The biggest story behind the vivo X300s and X300 Ultra is the camera system. vivo has positioned both models as photography-first devices, and the hardware backs that claim with unusually aggressive specs.
The vivo X300s uses a 200MP main camera with a Samsung HPB sensor, an f/1.68 aperture, and OIS. That main sensor is paired with a 50MP ultrawide camera using Samsung’s JN1 sensor with autofocus, plus a 50MP telephoto camera powered by Sony’s LYTIA 602 sensor.
That telephoto unit supports 3.5x optical zoom and includes OIS and autofocus, making it more flexible for portraits and distant subjects. vivo also offers a photographer kit with an additional lens that extends reach up to 200 mm, which gives the X300s a more serious imaging angle than many mainstream flagships.
The vivo X300 Ultra goes even further and becomes the more daring model in the pair. It carries two 200MP cameras, led by a primary Sony LYTIA 901 sensor with an f/1.85 aperture and OIS.
Its second 200MP camera is a telephoto unit based on Samsung’s HP0 sensor, and it supports 3.7x optical zoom. The ultrawide camera is also 50MP, but unlike the X300s, it includes OIS as well, which should help with low-light shots and steadier video capture.
The Ultra also gets a photographer kit with a lens option reaching up to 400 mm, plus additional stabilization support. That setup makes it look less like a normal smartphone accessory package and more like a mobile imaging tool for enthusiasts who want extra reach without switching to a dedicated camera.
A 144Hz display first for vivo’s X series
Both phones also mark a notable first for the brand’s premium line. They are the first vivo X series models to use a 144Hz refresh rate display, which should improve motion smoothness in scrolling, gaming, and everyday navigation.
vivo uses LTPO AMOLED panels on both phones, so the high refresh rate should remain more efficient than older fixed-rate designs. The X300s comes with a 6.78-inch display and a 1260 x 2800 pixel resolution, while the X300 Ultra steps up to a 6.82-inch screen with a sharper 1440 x 3160 resolution.
Each phone has a 50MP front camera placed in a punch-hole cutout. The X300s uses an f/2.0 aperture on its selfie camera, while the Ultra uses an f/2.45 aperture, which gives the smaller-aperture model a slight light-gathering edge in some conditions.
Flagship speed with 3nm chipsets
Performance is another area where vivo clearly wants to separate these phones from the pack. Both models run on 3nm chipsets, but vivo chose different platforms for each device.
The vivo X300s is powered by the MediaTek Dimensity 9500, a flagship chip designed to balance performance and efficiency. The vivo X300 Ultra, meanwhile, uses Qualcomm’s Snapdragon 8 Elite Gen 5, a platform aimed at maximum performance for gaming, AI tasks, and heavy camera processing.
The memory configuration is also very competitive. vivo offers four storage and memory combinations, starting from 12GB RAM with 256GB storage and going up to 16GB RAM with 1TB storage.
Both phones use UFS 4.1 storage and LPDDR5X Ultra RAM, while the top-end variant gets an even faster Ultra Pro version. That should help with app loading, large file transfers, and photo or video editing workflows.
Battery and charging are built for heavy users
Battery life is another major selling point for both devices. The vivo X300s packs a 7,100mAh battery, which is unusually large for a premium flagship and should appeal to users who spend long hours shooting content or streaming media.
It supports 90W wired fast charging, while the X300 Ultra comes with a 6,600mAh battery and faster 100W wired charging. That trade-off suggests vivo is chasing a balance between endurance and thermal or engineering constraints in the more camera-heavy Ultra model.
Both phones also support 40W wireless charging. That matters because flagship buyers increasingly expect fast wireless top-ups, especially when they use premium accessories and spend more time away from a desk charger.
Premium software and durability features
On the software side, both devices run OriginOS 6 based on Android 16. That gives the phones access to vivo’s latest interface improvements and Android-level security and feature updates.
They also include stereo speakers, an in-display ultrasonic fingerprint sensor, and IP68 plus IP69 ratings for water and dust resistance. The combination of IP68 and IP69 is especially important for users who shoot outdoors, since it adds more confidence in harsh conditions, splashes, and dusty environments.
Color options and positioning
The vivo X300 Ultra is available in black, white, and green. The X300s adds a silver option, giving it a slightly broader color palette for buyers who want something more distinctive.
The pricing also shows how vivo is positioning each model in the market. The X300s starts at around the equivalent of $780, based on the launch price of approximately Rp12 million. The X300 Ultra starts at around $1,100, while the highest-end variant with the photographer kit reaches nearly $2,000.
Key differences between the two models
- The X300s uses a 200MP main camera and a 50MP telephoto camera.
- The X300 Ultra uses two 200MP cameras, including a 200MP telephoto lens.
- The X300s has a 7,100mAh battery with 90W charging.
- The X300 Ultra has a 6,600mAh battery with 100W charging.
- The X300s runs on Dimensity 9500, while the Ultra uses Snapdragon 8 Elite Gen 5.
- The Ultra offers a higher-resolution display and a more advanced photographer kit.
The launch of the vivo X300s and X300 Ultra shows how aggressively the company is chasing the mobile imaging market. With 200MP dual-camera hardware on the Ultra, a 144Hz LTPO AMOLED panel on both models, and flagship-grade chipsets paired with large batteries, vivo is clearly targeting users who want a phone that can perform like a camera-centric premium device without giving up speed or endurance.
