Samsung Galaxy M51 vs Galaxy M31
50
out of 100
VS
43
out of 100
Here we compared two mid-range smartphones: the 6.7-inch Samsung Galaxy M51 (with Qualcomm Snapdragon 730G) that was released on August 31, 2020, against the Samsung Galaxy M31, which is powered by Exynos 7 Octa 9611 and came out 6 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 Samsung Galaxy M51
- Shows 29% longer battery life (31:29 vs 24:27 hours)
- Comes with 1000 mAh larger battery capacity: 7000 vs 6000 mAh
- Has a 0.3 inch larger screen size
- 27% better performance in AnTuTu Benchmark (414K versus 326K)
- Delivers 10% higher peak brightness (677 against 616 nits)
- Supports higher wattage charging (25W versus 15W)
- 2.1x faster in single-core GeekBench 6 test: 671 and 327 points
- More energy-efficient CPU – Snapdragon 730G
- Reverse charging feature
- The phone is 6 months newer
Reasons to consider the Samsung Galaxy M31
- Weighs 22 grams less
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 | Super AMOLED | Super AMOLED |
| Size | 6.7 inches | 6.4 inches |
| Resolution | 1080 x 2400 pixels | 1080 x 2340 pixels |
| Aspect ratio | 20:9 | 19.5:9 |
| PPI | 393 ppi | 403 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Adaptive refresh rate | No | No |
| Max rated brightness | 650 nits | 600 nits |
| HDR support | No | Yes, HDR10 |
| Screen protection | Corning Gorilla Glass 3 | Corning Gorilla Glass 3 |
| Screen-to-body ratio | 86.6% | 84.1% |
| Display features | - Always-On Display | - Always-On Display |
| RGB color space | 97.6% | 142% |
| PWM | 255 Hz | 208 Hz |
| Response time | 8 ms | 8.5 ms |
| Contrast | ∞ Infinity | ∞ Infinity |
Screen space comparison
Galaxy M51
6.7″ (20:9 ratio) = 16.8 in2
Galaxy M31
6.4″ (19.5:9 ratio) = 15.6 in2
~7% more screen space
Peak brightness test (auto)
Design and build
| Height | 163.9 mm (6.45 inches) | 159.2 mm (6.27 inches) |
| Width | 76.3 mm (3 inches) | 75.1 mm (2.96 inches) |
| Thickness | 9.5 mm (0.37 inches) | 8.9 mm (0.35 inches) |
| Weight | 213 g (7.51 oz) | 191 g (6.74 oz) |
| Waterproof | No | No |
| Rear material | Plastic | Plastic |
| Frame material | Plastic | Plastic |
| Colors | White, Black | Black, Blue, Red |
| Fingerprint scanner | Yes, in-button | Yes, rear |
Screen-to-body ratio
Performance
| Chipset | Qualcomm Snapdragon 730G | Samsung Exynos 7 Octa 9611 |
| Max clock | 2200 MHz | 2300 MHz |
| CPU cores | 8 (2 + 6) | 8 (4 + 4) |
| Architecture | - 6 cores at 1.8 GHz: Kryo 470 Silver (Cortex-A55) - 2 cores at 2.2 GHz: Kryo 470 Gold (Cortex-A76) |
- 4 cores at 1.7 GHz: Cortex-A53 - 4 cores at 2.3 GHz: Cortex-A73 |
| Manufacturing | Samsung | Samsung |
| Lithography process | 8 nanometers | 10 nanometers |
| Neural processor (NPU) | Qualcomm Hexagon 688 | Yes |
| Graphics | Adreno 618 | Mali-G72 MP3 |
| GPU shading units | 256 | 36 |
| GPU clock | 700 MHz | 850 MHz |
| FLOPS | ~358.4 GFLOPS | ~61.2 GFLOPS |
Benchmarks
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
| Single-core score | 671 | 327 |
| Multi-core score | 1799 | 1023 |
AnTuTu Benchmark 11
| CPU | 170930 | 112563 |
| GPU | 57615 | 39553 |
| Memory | 61383 | 63619 |
| UX | 124355 | 110754 |
| Total score | 414283 | 326489 |
| Samples | Less than 3 | Less than 3 |
Recent User Tests
Samsung Galaxy M51
No benchmark results yet
Samsung Galaxy M31
| Date | Benchmark | Result |
|---|---|---|
| 📘 2024-06-27 (Jogo) | GeekBench CPU | 327 / 1023 |
Memory
| RAM size | 6 GB | 6 GB |
| Memory type | LPDDR4X | LPDDR4X |
| Memory clock | 1866 MHz | 1866 MHz |
| Channels | 2 | 2 |
| Storage size | 128 GB | 64 GB |
| Storage type | UFS 2.1 | UFS 2.1 |
| Memory card | MicroSD | MicroSD |
| Memory card max size | Up to 512 GB | Up to 512 GB |
Software
| Operating system | Android 10 (Can be upgraded to Android 12) | Android 10 (Can be upgraded to Android 12) |
| ROM | One UI 4.1 | One UI 4.1 |
| OS size | 22 GB | 15 GB |
| OS updates | 2 years | 2 years |
| Security updates | 4 years | 4 years |
Battery
| Capacity | 7000 mAh | 6000 mAh |
| Max charge power | 25 W | 15 W |
| Battery type | Li-Ion | Li-Ion |
| Replaceable | No | No |
| Wireless charging | No | No |
| Reverse charging | Yes | No |
| Fast charging | Yes (35% in 30 min) | Yes, Samsung Adaptive Fast Charge (45% in 60 min) |
| Full charging time | 1:47 hr | 2:25 hr |
| Web browsing | 12:03 hr | 10:13 hr |
| Watching video | 16:42 hr | 14:16 hr |
| Gaming | 06:23 hr | 05:44 hr |
| Standby | 171 hr | 117 hr |
General battery life
Smartphones With Long Battery Life (#32nd place)
Main camera
| Matrix | 64 megapixels | 64 megapixels |
| Image resolution | 9248 x 6920 | 9248 x 6920 |
| Zoom | Digital | Digital |
| Flash | LED | LED |
| Stabilization | Digital | Digital |
| 8K video recording | No | No |
| 4K video recording | Up to 30FPS | Up to 30FPS |
| 1080p video recording | Up to 30FPS | Up to 30FPS |
| Slow motion | 240 FPS (720p) | 240 FPS (720p) |
| Angle of widest lens | 123° | 123° |
| Lenses | 1) Standard: 64 MP 2) Ultrawide: 12 MP 3) Macro: 5 MP 4) Depth: 5 MP |
1) Standard: 64 MP 2) Ultrawide: 8 MP 3) Macro: 5 MP 4) Depth: 5 MP |
| Camera features | - Bokeh mode - Pro mode |
- Bokeh mode - Pro mode |
| Image resolution | 64 MP | 64 MP |
| Aperture | f/1.8 | f/1.8 |
| Focal length | 26 mm | 26 mm |
| Sensor | Sony IMX682 | ISOCELL Bright GW1 |
| Sensor size | 1/1.7" (≈ 0.59 inch) | 1/1.72" (≈ 0.58 inch) |
| Pixel size | 0.8 micron | 0.8 micron |
| Autofocus | Phase autofocus | Phase autofocus |
| Stabilization | Digital | Digital |
| Image resolution | 12 MP | 8 MP |
| Aperture | f/2.2 | f/2.2 |
| Focal length | - | 12 mm |
| Sensor | Samsung S5K3L6 | - |
| Sensor size | 1/3.1" (≈ 0.32 inch) | 1/4.0" (≈ 0.25 inch) |
| Pixel size | 1.12 micron | 1.12 micron |
| Stabilization | Digital | Digital |
| Image resolution | 5 MP | 5 MP |
| Aperture | f/2.4 | f/2.2 |
| Sensor | GalaxyCore GC5035 | - |
| Sensor size | 1/5" (≈ 0.2 inch) | - |
| Pixel size | 1.12 micron | - |
| Stabilization | Digital | Digital |
Selfie camera
| Megapixels | 32 megapixels | 32 megapixels |
| Image resolution | 6464 x 4864 | 6528 x 4896 |
| Aperture | f/2.2 | f/2.0 |
| Focal length | 26 mm | 26 mm |
| Sensor | Sony IMX616 | Sony IMX616 |
| Sensor size | 1/2.8" (≈ 0.36 inch) | 1/2.8" (≈ 0.36 inch) |
| Pixel size | 0.8 micron | 0.8 micron |
| Autofocus | No | No |
| Stabilization | Digital | Digital |
| Video resolution | 2160p (4K) at 60 FPS | 2160p (4K) 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 | 5 |
| Bluetooth features | LE, A2DP | PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP |
| USB type | USB Type-C | USB Type-C |
| USB version | 2 | 2 |
| USB features | - Charging - USB-Storage mode |
- Charging - USB-Storage mode - OTG |
| GPS | GPS, GLONASS, Beidou, Galileo | GPS, GLONASS, Beidou, Galileo |
| NFC* | Yes | Depends on the region |
| Infrared port | No | 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 |
| LTE Cat* | 15 | 12 |
| 5G support | No | No |
Sound
| Speakers | Mono | Mono |
| Headphone audio jack | Yes | Yes |
| FM radio | Yes | Yes |
| Dolby Atmos | Yes | Yes |
Speakers test
Max loudness
Other
| Category | Mid-range | Mid-range |
| Announced | August 2020 | February 2020 |
| Release date | September 2020 | March 2020 |
| Launch price (MSRP) | $340 | $220 |
| Successor | - Samsung Galaxy M56 5G | - |
| SAR (head) | 0.609 W/kg | 0.48 W/kg |
| SAR (body) | 1.446 W/kg | 1.13 W/kg |
| Sensors | - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
- Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
*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 Samsung Galaxy M51 is definitely a better buy.
Cast your vote
Total votes: 503