Xiaomi Redmi 15 4G vs Vivo iQOO Z11
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Compared 2 smartphones : Xiaomi Redmi 15 4G Manufactured in August, 2025, with display 6.9 with chipsetQualcomm Snapdragon 685, vs Vivo iQOO Z11, Manufactured in March, 2026 with chipsetMediaTek Dimensity 8500. Below are specs, tests, pros and cons for each device
Key Differences
Reasons to choose Xiaomi Redmi 15 4G
- Larger display: 6.9in
Reasons to choose Vivo iQOO Z11
- Higher pixel density: 450ppi
- Higher refresh rate: 165Hz
- Lighter design: 216.42g vs 224g
- Higher battery capacity: 9020mAh vs 7000mAh
- Newer Bluetooth version: 5.4 vs 5
Versions
| Memory Options | - 6/128 GB - 8/256 GB |
- 8/256 GB - 12/256 GB - 12/512 GB - 16/256 GB - 16/512 GB |
Review
Display
Color accuracy, sharpness & brightness
Camera
Main & front camera tests
Performance
App & system performance
Games
3D gaming performance
Battery
Battery life, charging speed & type
Connectivity
Connectivity features
Adjust each parameter’s importance to find the best match for you.
Tests & specs
Specs & test comparisonDisplay
| Type | IPS LCD | AMOLED |
| Size | 6.9 in | 6.83 in |
| Resolution | 1080x2340 pixels | 1260x2800 pixels |
| Aspect ratio | 19.5:9 | 20:9 |
| Pixel density | 374 ppi | 450 ppi |
| Refresh rate | 144 Hz | 165 Hz |
| Adaptive refresh rate | Yes | Yes |
| Max brightness | n/a | 2000 nits |
| HDR support | No | Yes, HDR10+ |
| Screen-to-body ratio | 83.1 % | 90.6 % |
| Features | n/a | - DCI-P3 - Always-On Display - DC dimming |
Design & Build
| Height | 171.1 mm (6.74 in) | 163.3 mm (6.43 in) |
| Width | 82.1 mm (3.23 in) | 76.1 mm (3 in) |
| Thickness | 8.6 mm (0.34 in) | 8.3 mm (0.33 in) |
| Weight | 224 g (7.9 oz) | 216.42 g (7.63 oz) |
| Water resistance | IP64 | IP69 |
| Cooling system | n/a | Vapor chamber |
| Back panel | Plastic | Plastic |
| Frame | Plastic | Plastic |
| Colors | - Black - Gray - Purple |
- White - Black - Blue |
| Fingerprint sensor | Yes, In-Button | Yes, In-Display |
Screen-to-body ratio
Performance
| Chipset | Qualcomm Snapdragon 685 | MediaTek Dimensity 8500 |
| Max Frequency | 2800 MHz | 3400 MHz |
| CPU Cores | 8 (4 + 4) | 8 (1 + 3 + 4) |
| Architecture | - 4/1.9 (Cortex-A53) - 4/2.8 (Cortex-A73) |
- 4/2.2 (Cortex-A725) - 3/3.2 (Cortex-A725) - 1/3.4 (Cortex-A725) |
| Process | TSMC | TSMC |
| Transistor Size | 6 nm | 4 nm |
| Neural Processor | Hexagon 686 | MediaTek NPU 880 |
| Graphics | Adreno 610 | n/a |
| GPU Cores | 128 | n/a |
| GPU Frequency | 1260 MHz | n/a |
| FLOPS | 322.6 GFLOPS | n/a |
| Geekbench 6 (Single-Core) | 475 | 1740 |
| Geekbench 6 (Multi-Core) | 1514 | 6797 |
| CPU | 114885 | 960602 |
| GPU | 57988 | 555986 |
| Memory | 103236 | 385197 |
| UX | 104881 | 710479 |
| NanoReview Score | 380990 | 2612264 |
Memory
| RAM Size | 6 GB | 8 GB |
| Memory Type | LPDDR4X | LPDDR5X |
| Memory Frequency | 2133 MHz | 4800 MHz |
| Channels | 2 | 4 |
| Storage Capacity | 128 GB | 256 GB |
| Storage Type | UFS 2.2 | UFS 4.1 |
| Memory Card | MicroSD | No |
Software
| OS | Android 15 | Android 16 |
| UI Skin | HyperOS 2.0 | OriginOS 6 |
Battery
| Volume | 7000 mAh | 9020 mAh |
| Max Charging Power | 33 W | 90 W |
| Battery Type | n/a | Silicon Carbon (Si/C) |
| Removable | No | No |
| Wireless Charging | No | No |
| Reverse Charging | No | Yes |
| Fast Charging | Yes | Yes |
Main camera
| Matrix | 50 MP | 50 MP |
| Photo resolution | n/a | 8192x6144 pixels |
| Zoom | Digital | Digital |
| Flash | LED | LED |
| Stabilization | Digital | Optical |
| 8K Recording | No | No |
| 4K Recording | No | Yes (Up to 60 fps) |
| 1080p Recording | Yes (Up to 30 fps) | Yes (Up to 60 fps) |
| Slow Motion | n/a | 240 fps (1080p) |
| Lenses count | Standard: 50 MP Depth |
Standard: 50 MP Depth |
| Features | Bokeh effect | - Bokeh effect - Pro mode - RAW support |
| Matrix | 50 MP | 50 MP |
| Aperture | f/1.8 | f/1.8 |
| Focal length | n/a | 3 mm |
| Sensor size | n/a | 1/1.95 (0.51) |
| Pixel size | n/a | 0.8 μm |
| Autofocus | Phase autofocus | Phase autofocus |
| Stabilization | Digital | Optical |
Front camera
| Matrix | 8 MP | 16 MP |
| Aperture | f/2.0 | f/2.5 |
| Sensor | n/a | CMOS |
| Sensor size | n/a | 1/3.0 (0.33) |
| Pixel size | n/a | 1 μm |
| Autofocus | No | No |
| Stabilization | Digital | Digital |
| Video resolution | 1080p (Full HD) at 30 fps | 1080p (Full HD) at 30 fps |
| TOF 3D sensor | No | No |
Connectivity
| Wi-Fi version | Wi-Fi 5 (802.11 a/b/g/n/ac) | Wi-Fi 6 (802.11 a/b/g/n/ac/ax) |
| Wi-Fi features | - Dual Band - 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 | 5.4 |
| Bluetooth features | LE | LE |
| USB type | USB Type-C | USB Type-C |
| USB version | 2 | 2 |
| USB features | - Charging - USB Storage Mode - OTG |
- Charging - USB Storage Mode - OTG |
| DisplayPort | n/a | No |
| GPS | - GPS - GLONASS - Beidou - Galileo |
- GPS - GLONASS - Beidou - Galileo - QZSS |
| NFC* | Yes | Yes |
| Infrared Port | Yes | Yes |
| SIM Count* | 2 | 2 |
| SIM Type | Nano | Nano |
| SIM Mode | Dual SIM Standby | Dual SIM Standby |
| eSIM Support * | No | No |
| Hybrid Slot | No | No |
| 5G Support | No | Yes |
Sound
| 3.5 mm Jack | Yes | No |
| FM Radio | No | No |
Other
| Class | Budget | Mid-range |
| Announced | August, 2025 yr | March, 2026 yr |
| Release Date | August, 2025 yr | March, 2026 yr |
| MSRP ($) | 150 | 335 |
| Sensors | - Accelerometer - Ambient Light Sensor - Compass - Fingerprint sensor |
- Proximity Sensor - Gyroscope - Accelerometer - Ambient Light Sensor - Compass - Fingerprint sensor |
| Charger Included | Yes, 33 W | Yes, 100 W |
*
Attention!
Config, frequencies, NFC, and other specs may vary by region.
Results
After analyzing the data, we consider Vivo iQOO Z11 the clear winner in this comparison.
Survey
Total Votes: 0
