Xiaomi Redmi 15 5G vs Vivo Y31 5G
61
out of 100
VS
54
out of 100
Here we compared two smartphones: the 6.9-inch Xiaomi Redmi 15 5G (with Qualcomm Snapdragon 6s Gen 3) that was released on August 1, 2025, against the Vivo Y31 5G, which is powered by Qualcomm Snapdragon 4 Gen 2 and came out 1 month after. 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 Xiaomi Redmi 15 5G
- 42% higher pixel density (374 vs 264 PPI)
- Higher display refresh rate – 144 Hz
- Newer Bluetooth version (v5.1)
- 19% better performance in AnTuTu Benchmark (632K versus 531K)
- More recent OS version: Android 16 versus 15
- Faster storage type - UFS 2.2 versus eMMC 5.1
- Reverse charging feature
- Supports Dolby Atmos sound technology
- 22% faster in single-core GeekBench 6 test: 938 and 771 points
- Has a built-in infrared port
Reasons to consider the Vivo Y31 5G
- Waterproof body (IP68 classification)
- Stereo speakers
- Supports higher wattage charging (44W versus 33W)
- More energy-efficient CPU – Snapdragon 4 Gen 2
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 | IPS LCD | IPS LCD |
| Size | 6.9 inches | 6.68 inches |
| Resolution | 1080 x 2340 pixels | 720 x 1608 pixels |
| Aspect ratio | 19.5:9 | 20:9 |
| PPI | 374 ppi | 264 ppi |
| Refresh rate | 144 Hz | 120 Hz |
| Adaptive refresh rate | Yes | Yes (60-120 Hz) |
| Max rated brightness | 850 nits | 1000 nits |
| HDR support | No | No |
| Touch sampling rate | 288 Hz | - |
| Screen protection | Corning Gorilla Glass 3 | Guardian Glass |
| Screen-to-body ratio | 85.6% | 84.2% |
Screen space comparison
Redmi 15 5G
6.9″ (19.5:9 ratio) = 18.1 in2
Y31 5G
6.68″ (20:9 ratio) = 16.7 in2
~8% more screen space
Design and build
| Height | 169.48 mm (6.67 inches) | 166.14 mm (6.54 inches) |
| Width | 80.45 mm (3.17 inches) | 77.01 mm (3.03 inches) |
| Thickness | 8.4 mm (0.33 inches) | 8.39 mm (0.33 inches) |
| Weight | 217 g (7.65 oz) | 209 g (7.37 oz) |
| Waterproof | IP64 | IP68 |
| Rear material | Plastic | Plastic |
| Frame material | Plastic | Plastic |
| Colors | Black, Gray, Green | Black, Red |
| Fingerprint scanner | Yes, in-button | Yes, in-button |
| Repairability | Average (2.63/5) | - |
| Drop resistance | Average (D) · 45 drops | - |
Screen-to-body ratio
Performance
| Chipset | Qualcomm Snapdragon 6s Gen 3 | Qualcomm Snapdragon 4 Gen 2 |
| Max clock | 2300 MHz | 2200 MHz |
| CPU cores | 8 (2 + 6) | 8 (2 + 6) |
| Architecture | - 6 cores at 2 GHz: Cortex-A55 - 2 cores at 2.3 GHz: Cortex-A78 |
- 6 cores at 2 GHz: Cortex-A55 - 2 cores at 2.2 GHz: Cortex-A78 |
| Manufacturing | TSMC | Samsung |
| Lithography process | 6 nanometers | 4 nanometers |
| Neural processor (NPU) | Hexagon | Yes |
| Graphics | Adreno 619 | Adreno 613 |
| GPU shading units | 256 | 128 |
| GPU clock | 900 MHz | 955 MHz |
| FLOPS | ~460.8 GFLOPS | ~244.5 GFLOPS |
Benchmarks
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
Compute Score (GPU)
| Compute Score (GPU) | 1614 | 1424 |
| Single-core score | 938 | 771 |
| Multi-core score | 2183 | 2059 |
AnTuTu Benchmark 11
| CPU | 251623 | 234118 |
| GPU | 60173 | 45437 |
| Memory | 136632 | 109175 |
| UX | 184506 | 142889 |
| Total score | 632934 | 531619 |
| Samples | [9 tests] | Less than 3 |
PCMark 3.0
| Web score | 11839 | - |
| Video editing | 4813 | - |
| Photo editing | 21937 | - |
| Data manipulation | 9072 | - |
| Writing score | 13558 | - |
Recent User Tests
Xiaomi Redmi 15 5G
| Date | Benchmark | Result |
|---|---|---|
| 📘 2026-06-17 (Aditya) | AnTuTu 11 | 624333 |
| 📘 2026-06-03 (Peem humseem v2) | AnTuTu 11 | 663138 |
| 📘 2026-05-31 (Andy Yee (Andymus)) | AnTuTu 11 | 845108 |
| 📘 2026-04-22 (Kucing) | AnTuTu 11 | 643341 |
| 📘 2026-03-29 (lilaktt) | AnTuTu 11 | 615697 |
Vivo Y31 5G
No benchmark results yet
Memory
| RAM size | 4 GB | 4 GB |
| Memory type | LPDDR4X | LPDDR4X |
| Memory clock | 2133 MHz | 2133 MHz |
| Channels | 2 | 2 |
| Storage size | 128 GB | 128 GB |
| Storage type | UFS 2.2 | eMMC 5.1 |
| Memory card | MicroSD | MicroSD |
| Memory card max size | Up to 2048 GB | Up to 1024 GB |
Software
| Operating system | Android 15 (Can be upgraded to Android 16) | Android 15 |
| ROM | HyperOS 2.0 | FuntouchOS 15 |
| OS updates | 5 years | - |
Battery
| Capacity | 7000 mAh | 6500 mAh |
| Max charge power | 33 W | 44 W |
| Battery type | Li-Po | Silicon-Carbon (Si/C) |
| Replaceable | No | No |
| Wireless charging | No | No |
| Reverse charging | Yes | No |
| Bypass charging | - | No |
| Fast charging | Yes (50% in 45 min) | Yes (50% in 38 min) |
| Full charging time | 1:48 hr | - |
| Battery cycles | 1000 cycles | - |
Main camera
| Matrix | 50 megapixels | 50 megapixels |
| Image resolution | 8192 x 6144 | - |
| Zoom | Digital | Digital |
| Flash | LED | Dual LED |
| Stabilization | Digital | Digital |
| 8K video recording | No | No |
| 4K video recording | No | No |
| 1080p video recording | Up to 30FPS | Up to 30FPS |
| Lenses | 1) Standard: 50 MP 2) Depth |
1) Standard: 50 MP 2) Depth |
| Camera features | - Bokeh mode | - Bokeh mode |
| Image resolution | 50 MP | 50 MP |
| Aperture | f/1.8 | f/1.8 |
| Sensor size | 1/2.88" (≈ 0.35 inch) | - |
| Pixel size | 0.61 micron | - |
| Autofocus | Phase autofocus | Phase autofocus |
| Stabilization | Digital | Digital |
Selfie camera
| Megapixels | 8 megapixels | 8 megapixels |
| Aperture | f/2.0 | f/2.0 |
| Sensor | CMOS | CMOS |
| Autofocus | No | No |
| Stabilization | Digital | Digital |
| Video resolution | 1080p (Full HD) at 30 FPS | 1080p (Full HD) at 30 FPS |
| Depth sensor (TOF 3D) | No | No |
Connectivity
| Wi-Fi standard | Wi-Fi 5 (802.11 a/b/g/n/ac) | Wi-Fi 5 (802.11 a/b/g/n/ac) |
| Wi-Fi features | - Dual Band - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display |
- Dual Band - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display |
| Bluetooth version | 5.1 | 4.2 |
| 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 | No | No |
| GPS | GPS, GLONASS, Beidou, Galileo | GPS, GLONASS, Beidou, Galileo, QZSS |
| NFC* | Yes | No |
| Infrared port | Yes | No |
| Number of SIM* | 2 | 2 |
| Type of SIM card | Nano | Nano |
| Multi SIM mode | Standby | Standby |
| eSIM support* | No | No |
| Hybrid slot | No | No |
| 5G support | Yes | Yes |
Sound
| Speakers | Mono | Stereo |
| Headphone audio jack | No | No |
| FM radio | Yes | No |
| Dolby Atmos | Yes | No |
Other
| Category | Mid-range | Budget |
| Announced | August 2025 | September 2025 |
| Release date | August 2025 | September 2025 |
| Launch price (MSRP) | $209 | - |
| Sensors | - Accelerometer - Ambient light sensor - Compass - Fingerprint |
- Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
| Bundled charger | Not included | Yes, 44 W |
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.
Conclusion
After analyzing all the data, we think that the Xiaomi Redmi 15 5G is definitely a better buy.
Cast your vote
Total votes: < 1