vivo
Device summary
vivo
X300 Ultra
Full specifications
| Basic information | ||
|---|---|---|
| Release year | 2025 | 2026 |
| Starting price | — | — |
| Display size | 6.3-inch | 6.8-inch |
| Dimensions | 71.9 mm × 150.6 mm × 8.0 mm | 76.8 mm × 163.0 mm × 8.2 mm |
| Weight | 190 g | 232 g |
| Front material | — | — |
| Back material | — | — |
| Display | ||
| Resolution | 2640 × 1216 | 3168 × 1440 |
| Refresh rate | 120 Hz | — |
| Peak brightness | 4500 nits | — |
| Performance | ||
| Chipset | MediaTek Dimensity 9500 | Snapdragon 8 Elite Gen 5 |
| RAM | 12 GB, 16 GB | 16 GB |
| Storage | 256 GB, 512 GB | 512 GB |
| Cameras | ||
| Main camera | Main · 200 MP · ƒ/1.68 · 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/2.57 · 3x optical zoom · OIS | Telephoto · 200 MP · ƒ/2.67 · OIS |
| Front cameras | Front · 50 MP · ƒ/2.0 | Front · 50 MP · ƒ/2.45 |
| Video recording | 4K at 60 fps | — |
| Battery & charging | ||
| Wired charging | 90 W | 100 W |
| Wireless charging | 40 W | — |
| Battery type | Li-ion | — |
| Typical capacity | 6040 mAh | 6600 mAh |
| Rated capacity | — | 6395 mAh |
| Connectivity | ||
| Cellular | 5G, LTE | 5G, LTE |
| Wi‑Fi | Wi‑Fi 7 | Wi‑Fi 6E |
| Bluetooth | Bluetooth 6.0 | Bluetooth 6.0 |
| USB | USB 3.2 Gen 1 | USB 3.2 |
| Build & durability | ||
| Ingress protection | IP68; IP69 | — |
| Basic information | ||
|---|---|---|
| Release year | 2025 | 2026 |
| Starting price | — | — |
| Display size | 6.3-inch | 6.8-inch |
| Dimensions | 71.9 mm × 150.6 mm × 8.0 mm | 76.8 mm × 163.0 mm × 8.2 mm |
| Weight | 190 g | 232 g |
| Front material | — | — |
| Back material | — | — |
| Display | ||
| Resolution | 2640 × 1216 | 3168 × 1440 |
| Refresh rate | 120 Hz | — |
| Peak brightness | 4500 nits | — |
| Performance | ||
| Chipset | MediaTek Dimensity 9500 | Snapdragon 8 Elite Gen 5 |
| RAM | 12 GB, 16 GB | 16 GB |
| Storage | 256 GB, 512 GB | 512 GB |
| Cameras | ||
| Main camera | Main · 200 MP · ƒ/1.68 · 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/2.57 · 3x optical zoom · OIS | Telephoto · 200 MP · ƒ/2.67 · OIS |
| Front cameras | Front · 50 MP · ƒ/2.0 | Front · 50 MP · ƒ/2.45 |
| Video recording | 4K at 60 fps | — |
| Battery & charging | ||
| Wired charging | 90 W | 100 W |
| Wireless charging | 40 W | — |
| Battery type | Li-ion | — |
| Typical capacity | 6040 mAh | 6600 mAh |
| Rated capacity | — | 6395 mAh |
| Connectivity | ||
| Cellular | 5G, LTE | 5G, LTE |
| Wi‑Fi | Wi‑Fi 7 | Wi‑Fi 6E |
| Bluetooth | Bluetooth 6.0 | Bluetooth 6.0 |
| USB | USB 3.2 Gen 1 | USB 3.2 |
| Build & durability | ||
| Ingress protection | IP68; IP69 | — |
Key differences
The most meaningful measured gaps in size and weight — not an overall winner.
Height
X300 Ultra
12.4 mm taller
Weight
X300
42 g lighter
Width
X300 Ultra
4.9 mm wider
Thickness
X300
0.2 mm thinner · minor difference
Size in everyday life
Picture it in your front pocket.
2018 US jeans study · 20 brands · 80 pairs · Approx. 32-inch waists
X300
X300 Ultra
X300 vs X300 Ultra Size Comparison
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User Experience Summary
X300
Strengths
- Praised 200 MP Zeiss camera system in a sub-72 mm compact body
- Dimensity 9500 responsive for daily use and fast camera processing
- 6.31-inch LTPO balances one-handed reach with flagship display quality
Compromises
- Thermal throttling under sustained high-load workloads
- Battery endurance below X300 Pro for power users
- Low-light and telephoto limits versus Pro despite daylight camera praise
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