OnePlus 9 vs vivo X300 Ultra
The Verdict
The OnePlus 9 and vivo X300 Ultra sit in the same category and end up appealing to slightly different buyers. The OnePlus 9 is the cheaper of the two at $729 versus $1,012, a difference of about $283. The vivo X300 Ultra is the newer release, which usually means a faster chipset and longer software support. OnePlus 9 stands out for 65w warp charge fills battery in 29 minutes, while vivo X300 Ultra is praised for bright 3000-nit amoled display with 120hz refresh rate. Use the side-by-side spec table below to compare cameras, displays, battery life and connectivity in detail and decide which one fits your priorities.
Who Should Buy
Buy the OnePlus 9 if…
- →65W Warp Charge fills battery in 29 minutes
- →Excellent main and ultrawide cameras
- →Hasselblad color calibration
Buy the vivo X300 Ultra if…
- →Bright 3000-nit AMOLED display with 120Hz refresh rate
- →Powerful Snapdragon 8 Elite chipset for demanding tasks
- →Versatile triple camera setup with 50MP telephoto
Pros & Cons
OnePlus 9
Pros
- 65W Warp Charge fills battery in 29 minutes
- Excellent main and ultrawide cameras
- Hasselblad color calibration
- 120Hz AMOLED display
- Competitive pricing at $729
Cons
- No telephoto camera
- 2 MP monochrome sensor is useless
- No official IP rating for water resistance
- Plastic frame feels less premium
- Snapdragon 888 heating issues
vivo X300 Ultra
Pros
- Bright 3000-nit AMOLED display with 120Hz refresh rate
- Powerful Snapdragon 8 Elite chipset for demanding tasks
- Versatile triple camera setup with 50MP telephoto
- Large 6000mAh battery with 80W fast charging
- Premium IP69 dust and water resistance rating
Cons
- Premium pricing may limit mainstream appeal
- Large 6.82-inch display not ideal for one-handed use
- Thermal management at high loads remains a concern
- No expandable storage option
Full Specifications
| Spec | OnePlus 9 | vivo X300 Ultra |
|---|---|---|
| Software | Android 11, OxygenOS 11 | — |
| Body | ||
| Weight | 192 g | — |
| Material | Plastic frame, Gorilla Glass 5 | — |
| IP rating | No official rating | — |
| Dimensions | 160 x 74.2 x 8.7 mm | — |
| Camera | ||
| Main camera | 48 MP, f/1.8, OIS (Hasselblad tuned) | 50MP f/1.6 |
| Mono | 2 MP, f/2.4 | — |
| Front camera | 16 MP, f/2.4 | 32MP f/2.45 |
| Video | 8K@30fps, 4K@60fps | — |
| Ultrawide | 50 MP, f/2.2, freeform lens | 50MP f/2.2 |
| Telephoto | — | 50MP f/2.6 3x optical |
| Memory | ||
| RAM | 8 GB | — |
| Storage options | 128 GB, 256 GB | — |
| Battery | ||
| Capacity | 4500 mAh | 6000mAh |
| Charging | 65W Warp Charge wired | — |
| Wireless charging | 15W wireless | — |
| Charging Speed | — | 80W wired |
| Wireless Charging | — | 50W |
| Display | ||
| Size | 6.55 inches | 6.82 inches |
| Type | AMOLED | AMOLED |
| Resolution | 2400 x 1080 | 1440 x 3168 pixels |
| Refresh rate | 120Hz | 120Hz |
| Brightness (nits) | 1100 | — |
| Brightness | — | 3000 nits peak |
| Processor | ||
| CPU | Octa-core (1x2.84 GHz + 3x2.42 GHz + 4x1.8 GHz) | — |
| GPU | Adreno 660 | — |
| Chipset | Qualcomm Snapdragon 888 | — |
| Connectivity | ||
| 5G | — | |
| NFC | — | |
| USB | USB-C 3.1 | — |
| Wi-Fi | Wi-Fi 6 | — |
| Bluetooth | 5.2 | — |
| Design | ||
| Colors | — | Titanium Black, Titanium Gold, Titanium White |
| Weight | — | 221g |
| IP rating | — | IP69 |
| Performance | ||
| RAM | — | 12GB |
| Chipset | — | Snapdragon 8 Elite |
| Storage | — | 256GB / 512GB |
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