Vivo X300 E vs iQOO 15
86
out of 100
VS
93
out of 100
Here we compared two flagship smartphones: the 6.59-inch Vivo X300 E (with Qualcomm Snapdragon 8 Gen 5) that was released on July 27, 2026, against the Vivo iQOO 15, which is powered by Qualcomm Snapdragon 8 Elite Gen 5 and came out 10 months before. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.
Select the amount of RAM to evaluate performance and value for money more precisely
Key differences
Reasons to consider the Vivo X300 E
- Slow-motion recording at 960FPS
- The phone is 10 months newer
- Supports Dolby Atmos sound technology
- Weighs 20 grams less
Reasons to consider the Vivo iQOO 15
- 37% better performance in AnTuTu Benchmark (3950K versus 2886K)
- Handles wireless charging up to 40W
- Newer Bluetooth version (v6.0)
- 11% higher pixel density (508 vs 459 PPI)
- Supports higher wattage charging (100W versus 90W)
- 27% faster in single-core GeekBench 6 test: 3584 and 2813 points
- Ready for eSIM technology
Review
Display
Screen quality, color accuracy, brightness
Camera
Photo and video recording quality
Performance
CPU and memory performance (apps, system)
Gaming
Capabilities for playing modern games
Battery
Battery life, charging type and speed
Connectivity
Networks, ports, data transmission
Scores with a red asterisk (*) are approximate and may change in the future as we gather more data.
Select your primary usage scenario to get a more accurate NanoReview Score
Value for money (Beta)
Tests and specifications
Comparison table of technical specifications and testsDisplay
| Type | AMOLED | AMOLED |
| Size | 6.59 inches | 6.85 inches |
| Resolution | 1260 x 2750 pixels | 1440 x 3168 pixels |
| Aspect ratio | 19.5:9 | 20:9 |
| PPI | 459 ppi | 508 ppi |
| Refresh rate | 144 Hz | 144 Hz |
| Adaptive refresh rate | Yes | Yes (1-120 Hz) |
| Max rated brightness | 1800 nits | 2600 nits |
| Max rated brightness in HDR | 5000 nits | 6000 nits |
| HDR support | Yes, HDR10+ | Yes, Dolby Vision |
| Touch sampling rate | 300 Hz | - |
| Screen protection | Tempered glass | Tempered glass |
| Screen-to-body ratio | 91.1% | 90.2% |
| Display features | - DCI-P3 - Always-On Display - DC Dimming |
- DCI-P3 - Always-On Display - DC Dimming |
| RGB color space | - | 100% |
| PWM | - | 561 Hz |
| Response time | - | 1 ms |
| Contrast | - | β Infinity |
Peak brightness test (auto)
Design and build
| Height | 157.5 mm (6.2 inches) | 163.65 mm (6.44 inches) |
| Width | 74.3 mm (2.93 inches) | 76.8 mm (3.02 inches) |
| Thickness | 7.8 mm (0.31 inches) | 8.1 mm (0.32 inches) |
| Weight | 200 g (7.05 oz) | 220 g (7.76 oz) |
| Waterproof | IP69 | IP69 |
| Advanced cooling | Vapor chamber | Vapor chamber |
| Rear material | Glass | Glass |
| Frame material | Metal | Metal |
| Colors | White, Gray, Orange | White, Black, Blue |
| Fingerprint scanner | Yes, in-display | Yes, in-display |
Screen-to-body ratio
Performance
| Chipset | Qualcomm Snapdragon 8 Gen 5 | Qualcomm Snapdragon 8 Elite Gen 5 |
| Max clock | 3800 MHz | 4610 MHz |
| CPU cores | 8 (2 + 6) | 8 (2 + 6) |
| Architecture | - 6 cores at 3.32 GHz: Oryon Performance - 2 cores at 3.8 GHz: Oryon Prime |
- 6 cores at 3.63 GHz: Oryon Gen 3 Performance - 2 cores at 4.74 GHz: Oryon Gen 3 Prime |
| L3 cache | 6 MB | 12 MB |
| Manufacturing | TSMC | TSMC |
| Lithography process | 3 nanometers | 3 nanometers |
| Neural processor (NPU) | Hexagon | Hexagon |
| Graphics | Adreno 829 | Adreno 840 |
| GPU shading units | 1024 | 1536 |
| GPU clock | 1225 MHz | 1300 MHz |
| FLOPS | ~2508.8 GFLOPS | ~3993.6 GFLOPS |
Benchmarks
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
Compute Score (GPU)
| Compute Score (GPU) | 17022 | 27247 |
| Single-core score | 2813 | 3584 |
| Multi-core score | 9056 | 11143 |
AnTuTu Benchmark 11
| CPU | 887251 | 1112833 |
| GPU | 951094 | 1494722 |
| Memory | 384303 | 442350 |
| UX | 663879 | 900177 |
| Total score | 2886527 | 3950082 |
| Samples | Less than 3 | [24 tests] |
3DMark Steel Nomad Light
| Stability | - | 54% |
| Graphics test | - | 21 FPS |
| Graphics score | - | 2806 |
3DMark Solar Bay
| Graphics test | - | 46 FPS |
| Section 1 | - | 52 FPS |
| Section 2 | - | 46 FPS |
| Section 3 | - | 40 FPS |
| Graphics score | - | 12156 |
3DMark Wild Life Extreme
| Graphics test | - | 40 FPS |
| Graphics score | - | 6752 |
PCMark 3.0
| Web score | - | 14169 |
| Video editing | - | 6652 |
| Photo editing | - | 35337 |
| Data manipulation | - | 14682 |
| Writing score | - | 29367 |
AnTuTu 11 Ranking List (125th and 29th place)
Recent User Tests
Vivo X300 E
No benchmark results yet
Vivo iQOO 15
| Date | Benchmark | Result |
|---|---|---|
| π 2026-09-11 (Rtesh) | AnTuTu 11 | 3886893 |
| π 2026-09-10 (Ranit) | AnTuTu 11 | 3974227 |
| π 2026-08-07 (tt:shikazik) | AnTuTu 11 | 4017492 |
| π 2026-07-17 (Skarvinarn) | AnTuTu 11 | 3902163 |
| π 2026-07-03 (cA27) | AnTuTu 11 | 4140036 |
Memory
| RAM size | 12 GB | 12 GB |
| Memory type | LPDDR5X | LPDDR5X |
| Memory clock | - | 5300 MHz |
| Channels | 4 | 4 |
| Storage size | 256 GB | 256 GB |
| Storage type | UFS 4.1 | UFS 4.1 |
| Memory card | No | No |
Software
| Operating system | Android 16 | Android 16 |
| ROM | OriginOS 6 | OriginOS 6 |
| OS size | - | 57 GB |
| OS updates | - | 5 years |
| Security updates | - | 7 years |
Battery
| Capacity | 7200 mAh | 7000 mAh |
| Max charge power | 90 W | 100 W |
| Battery type | Silicon-Carbon (Si/C) | Silicon-Carbon (Si/C) |
| Replaceable | No | No |
| Wireless charging | No | Yes (40 W) |
| Reverse charging | Yes | Yes, (wireless) |
| Bypass charging | - | Yes |
| Fast charging | Yes | Yes (60% in 30 min) |
| Full charging time | - | 0:52 hr |
| Web browsing | - | 18:52 hr |
| Watching video | - | 27:27 hr |
| Gaming | - | 09:04 hr |
| Standby | - | 147 hr |
General battery life
Smartphones With Long Battery Life (#4th place)
Main camera
| Matrix | 50 megapixels | 50 megapixels |
| Image resolution | 8192 x 6144 | 8192 x 6144 |
| Zoom | Optical, 3x | Optical, 3x |
| Flash | LED | Dual LED |
| Stabilization | Optical | Optical |
| 8K video recording | No | Up to 30FPS |
| 4K video recording | Up to 60FPS | Up to 60FPS |
| 1080p video recording | Up to 60FPS | Up to 60FPS |
| Slow motion | 960 FPS (1080p) | 240 FPS (1080p) |
| Angle of widest lens | 110Β° | 107Β° |
| Lenses | 1) Standard: 50 MP 2) Telephoto: 50 MP 3) Ultrawide: 8 MP |
1) Standard: 50 MP 2) Telephoto: 50 MP 3) Ultrawide: 50 MP |
| Camera features | - Bokeh mode - Pro mode - RAW support |
- Bokeh mode - Pro mode - RAW support |
| Image resolution | 50 MP | 50 MP |
| Aperture | f/1.9 | f/1.9 |
| Focal length | - | 23 mm |
| Sensor | - | Sony IMX921 |
| Sensor size | - | 1/1.56" (β 0.64 inch) |
| Pixel size | - | 1 micron |
| Autofocus | Phase autofocus | Phase autofocus |
| Stabilization | Optical | Optical |
| Image resolution | 50 MP | 50 MP |
| Aperture | f/2.6 | f/2.7 |
| Focal length | 70 mm | 85 mm |
| Sensor | Sony IMX882 | Sony IMX882 |
| Sensor size | 1/1.95" (β 0.51 inch) | 1/1.95" (β 0.51 inch) |
| Pixel size | 0.8 micron | 0.8 micron |
| Stabilization | Optical | Optical |
| Image resolution | 8 MP | 50 MP |
| Aperture | f/2.2 | f/2.1 |
| Focal length | 15 mm | 15 mm |
| Sensor | - | Samsung S5KJN1 |
| Sensor size | 1/4.0" (β 0.25 inch) | 1/2.76" (β 0.36 inch) |
| Pixel size | 1.12 micron | 0.64 micron |
| Stabilization | Digital | Digital |
Selfie camera
| Megapixels | 50 megapixels | 32 megapixels |
| Image resolution | 8192 x 6144 | 6528 x 4896 |
| Aperture | f/2.0 | f/2.2 |
| Focal length | 21 mm | 21 mm |
| Sensor | Samsung S5KJN1 | GalaxyCore GC32E1 |
| Sensor size | 1/2.76" (β 0.36 inch) | 1/3.1" (β 0.32 inch) |
| Pixel size | 0.64 micron | 0.7 micron |
| Autofocus | Phase autofocus | No |
| Stabilization | Digital | Digital |
| Video resolution | 2160p (4K) at 60 FPS | 2160p (4K) at 60 FPS |
| Depth sensor (TOF 3D) | No | No |
Connectivity
| Wi-Fi standard | Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) | Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) |
| Wi-Fi features | - Dual Band - Wi-Fi MiMO - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display |
- Dual Band - Wi-Fi MiMO - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display |
| Bluetooth version | 5.4 | 6.0 |
| Bluetooth features | LE | LE |
| USB type | USB Type-C | USB Type-C |
| USB version | 2 | 3.2 |
| USB features | - Charging - USB-Storage mode - OTG |
- Charging - USB-Storage mode - OTG |
| DisplayPort | No | Yes |
| GPS | GPS, GLONASS, Beidou, Galileo, QZSS | GPS, GLONASS, Beidou, Galileo, QZSS |
| NFC* | Yes | Yes |
| Infrared port | Yes | Yes |
| Number of SIM* | 2 | 2 |
| Type of SIM card | Nano | Nano |
| Multi SIM mode | Standby | Standby |
| eSIM support* | No | Yes |
| Hybrid slot | No | No |
| 5G support | Yes | Yes |
Sound
| Speakers | Stereo | Stereo |
| Headphone audio jack | No | No |
| FM radio | No | No |
| Dolby Atmos | Yes | No |
Speakers test
Max loudness
Other
| Category | Flagship | Flagship |
| Announced | July 2026 | October 2025 |
| Release date | July 2026 | October 2025 |
| Launch price (MSRP) | $710 | $699 |
| Sensors | - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
- Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
| Bundled charger | Yes, 90 W | Yes, 100 W |
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.
Conclusion
If the camera, performance, gaming, battery life, and connectivity are more important to you, then choose the Vivo iQOO 15. But if the sound is more of a priority β go for the Vivo X300 E.
Cast your vote
Total votes: 1