Photo: Sororoty928 via Wikimedia Commons / CC0

Vivo X300 Ultra: Specs, Key Features & Rivals

Shopping in the flagship smartphone class? The vivo X300 Ultra is Vivo’s answer. Natural rivals for the vivo X300 Ultra: iPhone 18 Pro, iPhone 18 Pro Max and Galaxy S26.

Screen size6.8 in
ChipsetSnapdragon 8 Elite Gen 5
Main camera200 MP
Battery capacity6,600 mAh
Weight8.18 oz
Base storage256 GB

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Key Specifications

Display

Display: Vivo X300 Ultra
Screen size	6.8 in
Panel type	LTPO AMOLED
Resolution	3168 x 1440
Refresh rate	144 Hz

Performance

Performance: Vivo X300 Ultra
Chipset	Snapdragon 8 Elite Gen 5
CPU cores	8
Process node	3 nm
RAM	12 GB

Memory & Storage

Memory & Storage: Vivo X300 Ultra
Base storage	256 GB
Max storage	1 TB
microSD slot	No

Camera

Camera: Vivo X300 Ultra
Main camera	200 MP
Ultra-wide camera	50 MP
Telephoto camera	200 MP
Optical zoom	3.7×
Rear cameras	3
Front camera	50 MP
Max video	8K30

Battery & Charging

Battery & Charging: Vivo X300 Ultra
Battery capacity	6,600 mAh
Wired charging	100 W
Wireless charging	40 W
Port	USB-C (USB 3.2)

Software & Updates

Software & Updates: Vivo X300 Ultra
OS at launch	OriginOS 6 (Android 16)

Design & Build

Design & Build: Vivo X300 Ultra
Height	6.42 in
Width	3.02 in
Thickness	0.32 in
Weight	8.18 oz
Water & dust rating	IP68/IP69
Frame	Aluminum

How It Stacks Up in the Flagship Smartphone Class

Take the class average for refresh rate, add 31%, and you have roughly where the vivo X300 Ultra sits. On ram, the vivo X300 Ultra sits right around the average for its class. Measured on optical zoom, the vivo X300 Ultra sits 16% under the average for similar models.

Refresh rate

144 Hz · class avg 109.6 Hz

RAM

12 GB · class avg 12 GB

Optical zoom

3.7× · class avg 4.3×

Battery capacity

6,600 mAh · class avg 5,068 mAh

Weight

8.18 oz · class avg 7.10 oz

Base storage

256 GB · class avg 196 GB