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Smartphone Smackdown: Vivo X300 vs Vivo iQOO 15
Vivo X300
VS
Vivo iQOO 15
Specifications
Vivo X300
VS
Vivo iQOO 15
Build Quality
| Device Height | 150.57 mm (5.93 inches) | 163.65 mm (6.44 inches) |
| Device Width | 71.92 mm (2.83 inches) | 76.8 mm (3.02 inches) |
| Device Thickness | 7.95 mm (0.31 inches) | 8.1 mm (0.32 inches) |
| Device Weight | 190 g (6.7 oz) | 220 g (7.76 oz) |
| Water Resistance | IP69 | IP69 |
| Enhanced Cooling System | Vapor chamber | Vapor chamber |
| Back Panel Material | Glass | Glass |
| Frame Construction | Metal | Metal |
| Available Color Options | Black, Blue, Red, Pink, Purple | White, Black, Blue |
| Biometric Security | Yes, in-display | Yes, in-display |
| Display Coverage | 90.3% | 90.2% |
System on Chip
| Processing Chip | MediaTek Dimensity 9500 | Qualcomm Snapdragon 8 Elite Gen 5 |
| Maximum Clock Speed | 4210 MHz | 4600 MHz |
| Processor Core Count | 8 (1 + 3 + 4) | 8 (2 + 6) |
| CPU Architecture | - 4 cores at 2.7 GHz: C1-Pro- 3 cores at 3.5 GHz: C1-Premium- 1 core at 4.21 GHz: C1-Ultra | - 6 cores at 3.63 GHz: Oryon Gen 3 Performance- 2 cores at 4.61 GHz: Oryon Gen 3 Prime |
| Level 3 Cache | 16 MB | 8 MB |
| Production Details | TSMC | TSMC |
| Chip Manufacturing Process | 3 nanometers | 3 nanometers |
| AI Processing Unit | MediaTek NPU 990 | Hexagon |
| Graphics Processor | Mali-G1 Ultra MP12 | Adreno 840 |
| Graphics Clock Speed | 1716 MHz | 1200 MHz |
| GPU Shader Units | 1536 | 1536 |
| Computational Performance | ~5271.5 GFLOPS | ~3686.4 GFLOPS |
Random Access Memory
| Memory Capacity | 12 GB | 12 GB |
| Memory Clock Speed | 5333 MHz | 5300 MHz |
| Memory Technology | LPDDR5X | LPDDR5X |
| Memory Channels | 4 | 4 |
Storage Specifications
| Storage Capacity | 256 GB | 256 GB |
| Storage Technology | UFS 4.1 | UFS 4.1 |
| Expandable Storage | No | No |
Operating System
| OS Version | Android 16 | Android 16 |
| Read-Only Memory | OriginOS 6 | OriginOS 6 |
Battery Endurance Tests
| Web Browsing Battery Life | 12:36 hr | |
| Video Playback Battery Life | 20:41 hr | |
| Standby Battery Duration | 107 hr |
Primary Camera
| Camera Sensor Configuration | 200 megapixels | 50 megapixels |
| Zoom Capability | Optical, 3x | Optical, 3x |
| Camera Flash | Dual LED | Dual LED |
| 8K Video Support | No | Up to 30FPS |
| 4K Video Support | Up to 120FPS | Up to 60FPS |
| Full HD Video Support | Up to 60FPS | Up to 60FPS |
| Slow-Motion Video | 240 FPS (1080p) | 240 FPS (1080p) |
| Widest Lens Field of View | 119° | |
| Camera Lens Count | 1) Standard: 200 MP 2) Telephoto: 50 MP 3) Ultrawide: 50 MP | 1) Standard: 50 MP 2) Telephoto: 50 MP 3) Ultrawide: 50 MP |
| Camera Special Features | - Bokeh mode - Pro mode | - Bokeh mode - Pro mode - RAW support |
Front Camera
| Front Camera Megapixels | 50 megapixels | 32 megapixels |
| Front Camera Resolution | 8192 x 6144 | |
| Front Camera Aperture | f/2.0 | f/2.2 |
| Front Camera Focal Length | 20 mm | 21 mm |
| Front Camera Sensor | Samsung S5KJN1 | GalaxyCore GC32E1 |
| Front Camera Sensor Dimensions | 1/2.76" (≈ 0.36 inch) | 1/3.1" (≈ 0.32 inch) |
| Front Camera Pixel Size | 0.64 micron | 0.7 micron |
| Front Camera Autofocus | Phase autofocus | No |
| Front Camera Stabilization | Digital | Digital |
| Front Camera Video Resolution | 2160p (4K) at 60 FPS | 2160p (4K) at 60 FPS |
| 3D Depth Sensor | No | No |
Network Specifications
| SIM Card Count | 2 | 2 |
| SIM Card Type | Nano | Nano |
| Dual SIM Functionality | Standby | Standby |
| eSIM Capability | Yes | Yes |
| Hybrid SIM Slot | No | No |
| 2G Network Support | GSM 850/900/1800/1900 MHz | GSM 850/900/1800/1900MHz |
| 3G Network Support | WCDMA B1/B2/B4/B5/B6/B8/B19 | WCDMA B1/B2/B4/B5/B6/B8/B19 |
| 4G Network Support | LTE B1/B2/B3/B4/B5/B7/B8/B18/B19/B20/B25/B26/B28A/B34/B38/B39/B40/B41/B42/B43/B48/B66 | LTE B1/B2/B3/B4/B5/B7/B8/B18/B19/B20/B26/B28A/B28B/B38/B40/B41/B42/B66 |
| 5G Network Compatibility | Yes | Yes |
Audio Specifications
| Sound Output | Stereo | Stereo |
| 3.5mm Audio Jack | No | No |
| FM Radio | No | No |
| Advanced Audio Processing | No |
Additional Features
| Product Category | Flagship | Flagship |
| Announcement Date | October 2025 | October 2025 |
| Initial Pricing | $699 | $590 |
| Sensor List | - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint | - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
Final Rating
| Display Rating | 94 | 95 |
| Camera Rating | 89* | 87* |
| Gaming Performance Rating | 98 | 98 |
| Battery Rating | 94 | 100* |
| Connectivity Rating | 98 | 98 |
| Overall Review Score | 93* | 94* |
Phone Price Comparison
Vivo X300
$699.00 USD
EUR
587.58
INR
63,444.04
NGN
951,363.40
JPY
109,153.74
MYR
2,750.22
CNY
4,843.72
ZAR
11,124.45
RUB
53,919.53
GBP
511.53
CHF
537.18
Vivo iQOO 15
$590.00 USD
EUR
495.95
INR
53,550.76
NGN
803,010.59
JPY
92,132.63
MYR
2,321.36
CNY
4,088.41
ZAR
9,389.73
RUB
45,511.48
GBP
431.76
CHF
453.42
