X300 Ultra

Phone2026Released

6.8-inch
Snapdragon 8 Elite Gen 5
232 g
6600 mAh

Model number: X300 Ultra

Available colors

Selected: White

Physical specifications

6.8"

Display size

232 g

Weight

163.0 mm

Height

76.8 mm

Width

8.2 mm

Thickness

19:9

Aspect ratio

Everyday usability

Estimated from device dimensions and weight.

One-handed use
Average
One-handed use is possible, though two hands will often feel easier.
Pocket friendliness
Good
Generally pocket-friendly for everyday carry.
Carry comfort
Heavy
Heavier in the hand; longer sessions may feel more tiring.
Reading and media
More comfortable for reading and media than compact phones.
Gaming
High-end
Its processor and graphics hardware are suited to demanding games and higher visual settings.

See its real size next to another phone or tablet.

Open size comparison

Display

Display size: 6.8"
Resolution: 3168 × 1440

Performance

Chipset: Snapdragon 8 Elite Gen 5
RAM: 16 GB
Storage: 512 GB

Battery & charging

Typical capacity: 6600 mAh
Rated capacity: 6395 mAh
Wired charging: 100 W

Cameras

Rear cameras: Main · 200 MP · ƒ/1.85 · OIS; Ultra Wide · 50 MP · ƒ/2.0; Telephoto · 200 MP · ƒ/2.67 · OIS
Front cameras: Front · 50 MP · ƒ/2.45

Connectivity

Cellular: 5G, LTE
Wi‑Fi: Wi‑Fi 6E
Bluetooth: Bluetooth 6.0
USB: USB 3.2

vivo X300 Ultra User Experience

An editorial summary of recurring vivo X300 Ultra ownership themes — Zeiss imaging flagship ergonomics at 76.81 mm wide and 232 g, Snapdragon 8 Elite Gen 5 speed, 200 MP main and periscope reach, 6,600 mAh endurance with 100 W charging, OriginOS 6 friction, and who the May 2026 Ultra launch suits best.

User experience

Release and pricing

Released: May 14, 2026

Buying guide FAQ

Practical upgrade and buying answers based on published specifications and previous-generation comparisons when available.

Who should buy vivo X300 Ultra (2026)?

vivo X300 Ultra (2026) fits buyers who want a larger phone for media and reach. This is an editorial reading of size and published differences, not a personalized recommendation.