Device summary

vivo

X300 Ultra

vivo

vivo X500 Pro Max

Full specifications

Full specifications
Basic information
Release year20262026
Starting price——
Display size6.8-inch6.9-inch
Dimensions76.8 mm × 163.0 mm × 8.2 mm76.8 mm × 163.3 mm × 8.1 mm
Weight232 g229 g
Front material——
Back material——
Display
Resolution3168 × 1440—
Display technology—AMOLED
Performance
ChipsetSnapdragon 8 Elite Gen 5MediaTek Dimensity 9600 Pro
RAM16 GB12 GB, 16 GB
Storage512 GB256 GB, 512 GB, 1024 GB
Cameras
Main cameraMain · 200 MP · ƒ/1.85 · OIS—
Ultra-wide cameraUltra Wide · 50 MP · ƒ/2.0—
Telephoto cameraTelephoto · 200 MP · ƒ/2.67 · OIS—
Rear camera 4—50 MP
Rear camera 5—200 MP
Rear camera 6—50 MP
Front camerasFront · 50 MP · ƒ/2.45—
Battery & charging
Wired charging100 W90 W
Wireless charging—40 W
Typical capacity6600 mAh8000 mAh
Rated capacity6395 mAh—
Connectivity
Cellular5G, LTE—
Wi‑FiWi‑Fi 6E—
BluetoothBluetooth 6.0—
USBUSB 3.2—

Key differences

The most meaningful measured gaps in size and weight — not an overall winner.

  • Weight

    vivo X500 Pro Max

    3 g lighter · minor difference

  • Height

    Very similar height

  • Width

    Very similar width

  • Thickness

    Very similar thickness

What these size differences mean

Calculated from the dimensions shown, rounded to 0.1 mm and 1 g. Percentages use the smaller measurement as the reference. Fold and rotation settings affect the dimensions compared.

  • Both have the same listed width (76.8 mm) at the displayed precision. Check this difference against the width of your current device and pocket opening.
  • vivo X500 Pro Max is 0.3 mm (0.2% relative to X300 Ultra) taller. This describes the body outline; screen diagonal alone does not tell you the overall size.
  • X300 Ultra is 0.1 mm (1.2% relative to vivo X500 Pro Max) thicker. Cases and camera protrusions can change the clearance you need.
  • vivo X500 Pro Max is 3 g lighter. This is the listed device-weight difference, not a measured comfort rating.

Use these figures to compare physical size. They do not establish one-handed reach, pocket fit, durability or an overall winner.

Size in everyday life

Picture it in your front pocket.

Front pocket reference

2018 US jeans study · 20 brands · 80 pairs · Approx. 32-inch waists

X300 Ultra

vivo X500 Pro Max

Sources and measurement notes

Sizometry compares published specifications and calculates differences. These are not hands-on measurements or tests of comfort, performance or pocket fit.

Check the exact model, year, region and configuration on the linked page. References may cover several variants. Folded and unfolded dimensions differ; cases and camera protrusions may change the space a device needs. Drawings share a relative scale and are not calibrated to life size on your screen.

X300 Ultra vs vivo X500 Pro Max Size Comparison

User Experience Summary

X300 Ultra

Strengths

  • Class-leading Zeiss imaging with 200 MP main and periscope telephoto
  • Sharp 6.82-inch QHD+ AMOLED with adaptive 144 Hz
  • Elite Gen 5 speed with 100 W wired and 40 W wireless charging

Compromises

  • Heavy 232 g phablet ergonomics versus X300 FE and standard flagships
  • OriginOS 6 promotional surfaces at Ultra pricing
  • Thermal warmth during sustained 4K video and gaming

Compare in Sizometry Tool

See both devices at the same scale.