OPPO
Device summary
vivo
X300 Ultra
Full specifications
| Basic information | ||
|---|---|---|
| Release year | 2024 | 2026 |
| Starting price | — | — |
| Display size | 6.8-inch | 6.8-inch |
| Dimensions | 76.7 mm × 162.3 mm × 8.2 mm | 76.8 mm × 163.0 mm × 8.2 mm |
| Weight | 215 g | 232 g |
| Front material | — | — |
| Back material | — | — |
| Display | ||
| Display technology | AMOLED (Flexible) | — |
| Resolution | 2780 × 1264 | 3168 × 1440 |
| Refresh rate | 120 Hz | — |
| Peak brightness | 4500 nits | — |
| Protection | Corning® Gorilla® Glass 7i | — |
| Performance | ||
| Chipset | MediaTek Dimensity 9400 | Snapdragon 8 Elite Gen 5 |
| RAM | 16 GB | 16 GB |
| Storage | 512 GB | 512 GB |
| Expandable storage | No | — |
| Cameras | ||
| Main camera | Wide · 50 MP · ƒ/1.6 · OIS | Main · 200 MP · ƒ/1.85 · OIS |
| Ultra-wide camera | Ultra Wide · 50 MP · ƒ/2.0 | Ultra Wide · 50 MP · ƒ/2.0 |
| Telephoto camera | Telephoto · 50 MP · ƒ/2.6 · OIS | Telephoto · 200 MP · ƒ/2.67 · OIS |
| Rear camera 4 | Telephoto · 50 MP · ƒ/4.3 · OIS | — |
| Front cameras | Front · 32 MP · ƒ/2.4 | Front · 50 MP · ƒ/2.45 |
| Battery & charging | ||
| Wired charging | 80 W | 100 W |
| Wireless charging | 50 W | — |
| Charging standard | SUPERVOOC; AIRVOOC | — |
| Typical capacity | 5770 mAh | 6600 mAh |
| Rated capacity | — | 6395 mAh |
| Connectivity | ||
| Cellular | 5G, LTE | 5G, LTE |
| Bluetooth | Bluetooth ® 5.4, Low Energy | Bluetooth 6.0 |
| USB | Type-C, USB3.2 GEN1 supported | USB 3.2 |
| NFC | Yes | — |
| eSIM | Yes | — |
| Wi‑Fi | — | Wi‑Fi 6E |
| Basic information | ||
|---|---|---|
| Release year | 2024 | 2026 |
| Starting price | — | — |
| Display size | 6.8-inch | 6.8-inch |
| Dimensions | 76.7 mm × 162.3 mm × 8.2 mm | 76.8 mm × 163.0 mm × 8.2 mm |
| Weight | 215 g | 232 g |
| Front material | — | — |
| Back material | — | — |
| Display | ||
| Display technology | AMOLED (Flexible) | — |
| Resolution | 2780 × 1264 | 3168 × 1440 |
| Refresh rate | 120 Hz | — |
| Peak brightness | 4500 nits | — |
| Protection | Corning® Gorilla® Glass 7i | — |
| Performance | ||
| Chipset | MediaTek Dimensity 9400 | Snapdragon 8 Elite Gen 5 |
| RAM | 16 GB | 16 GB |
| Storage | 512 GB | 512 GB |
| Expandable storage | No | — |
| Cameras | ||
| Main camera | Wide · 50 MP · ƒ/1.6 · OIS | Main · 200 MP · ƒ/1.85 · OIS |
| Ultra-wide camera | Ultra Wide · 50 MP · ƒ/2.0 | Ultra Wide · 50 MP · ƒ/2.0 |
| Telephoto camera | Telephoto · 50 MP · ƒ/2.6 · OIS | Telephoto · 200 MP · ƒ/2.67 · OIS |
| Rear camera 4 | Telephoto · 50 MP · ƒ/4.3 · OIS | — |
| Front cameras | Front · 32 MP · ƒ/2.4 | Front · 50 MP · ƒ/2.45 |
| Battery & charging | ||
| Wired charging | 80 W | 100 W |
| Wireless charging | 50 W | — |
| Charging standard | SUPERVOOC; AIRVOOC | — |
| Typical capacity | 5770 mAh | 6600 mAh |
| Rated capacity | — | 6395 mAh |
| Connectivity | ||
| Cellular | 5G, LTE | 5G, LTE |
| Bluetooth | Bluetooth ® 5.4, Low Energy | Bluetooth 6.0 |
| USB | Type-C, USB3.2 GEN1 supported | USB 3.2 |
| NFC | Yes | — |
| eSIM | Yes | — |
| Wi‑Fi | — | Wi‑Fi 6E |
Key differences
The most meaningful measured gaps in size and weight — not an overall winner.
Weight
Find X8 Pro
17 g lighter
Height
X300 Ultra
0.7 mm taller · minor difference
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.
- X300 Ultra is 0.1 mm (0.1% relative to Find X8 Pro) wider. Check this difference against the width of your current device and pocket opening.
- X300 Ultra is 0.7 mm (0.4% relative to Find X8 Pro) taller. This describes the body outline; screen diagonal alone does not tell you the overall size.
- Both have the same listed thickness (8.2 mm) at the displayed precision. Cases and camera protrusions can change the clearance you need.
- Find X8 Pro is 17 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.
2018 US jeans study · 20 brands · 80 pairs · Approx. 32-inch waists
Find X8 Pro
X300 Ultra
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.
Find X8 Pro vs X300 Ultra Size Comparison
Related size comparisons
User Experience Summary
Find X8 Pro
Strengths
- Rare dual-periscope quad-50MP camera system with 3x and 6x optical zoom
- Near two-day battery endurance from a 5,910 mAh silicon-carbon cell
- Dimensity 9400 delivers flagship-tier gaming performance with cooler sustained sessions
Compromises
- ColorOS 15 preinstalled apps require first-week cleanup
- Main sensor trails the true one-inch sensor of the previous Find X7 Ultra
- 215 g and 76.7 mm width reduce one-handed comfort versus the standard Find X8
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