Xiaomi Redmi Note 8 Pro vs Samsung Galaxy A51
Here we compared two mid-range smartphones: the 6.53-inch Xiaomi Redmi Note 8 Pro (with MediaTek Helio G90T) that was released on August 29, 2019, against the Samsung Galaxy A51, which is powered by Exynos 9 Octa 9611 and came out 4 months after. On this page, you will find tests, full specs, strengths, and weaknesses of each of the gadgets.
Key differences
Reasons to consider the Xiaomi Redmi Note 8 Pro
- Water-resistant body (IP52 classification)
- Shows 33% longer battery life (114 vs 86 hours)
- 50% better performance in AnTuTu Benchmark (282K versus 187K)
- Comes with 500 mAh larger battery capacity: 4500 vs 4000 mAh
- Faster storage type - UFS 2.1 versus UFS 2.0
- 39% faster in single-core GeekBench 5 test: 480 and 345 points
- Has a built-in infrared port
Reasons to consider the Samsung Galaxy A51
- More recent OS version: Android 11 versus 10
- Super AMOLED display (versus competitor's IPS LCD)
- More energy-efficient CPU – Exynos 9 Octa 9611
- Supports Dolby Atmos sound technology
- Weighs 28 grams less
- The front-facing camera can record video at 4K
Review
Display
Screen quality, color accuracy, brightness
Performance
CPU/GPU performance in apps and games
Battery
Battery life, charging type and speed
Camera
Photo and video recording quality
Connectivity
Networks, ports, data transmission
NanoReview score
Final comparison evaluation
Value for money
You can enter your local price of these phones (in USD or any other currency) and click on the "Calculate" button to see which one has a better value for money.
Tests and specifications
Comparison table of technical specifications and testsDisplay
| Type | IPS LCD | Super AMOLED |
| Size | 6.53 inches | 6.5 inches |
| Resolution | 1080 x 2340 pixels | 1080 x 2400 pixels |
| Aspect ratio | 19.5:9 | 20:9 |
| PPI | 395 ppi | 405 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| HDR support | Yes, HDR10 | No |
| Screen protection | Corning Gorilla Glass 5 | Corning Gorilla Glass 3 |
| Screen-to-body ratio | 84.9% | 87.4% |
| Display features | - | - Always-On Display |
| RGB color space | - | 98.8% |
| PWM | - | 242 Hz |
| Response time | - | 25 ms |
| Contrast | - | ∞ Infinity |
Max. Brightness
Design and build
| Height | 161.4 mm (6.35 inches) | 158.5 mm (6.24 inches) |
| Width | 76.4 mm (3.01 inches) | 73.6 mm (2.9 inches) |
| Thickness | 8.8 mm (0.35 inches) | 7.9 mm (0.31 inches) |
| Weight | 200 gramm (7.05 oz) | 172 gramm (6.07 oz) |
| Waterproof | IP52 | No |
| Rear material | Glass | Plastic |
| Frame material | Plastic | Plastic |
| Colors | White, Gray, Blue, Green | White, Black |
| Fingerprint scanner | Yes, rear | Yes, in-display |
Screen-to-body ratio
Performance
| Chipset | MediaTek Helio G90T | Samsung Exynos 9 Octa 9611 |
| Max. clock | 2050 MHz | 2300 MHz |
| CPU cores | 8 (2 + 6) | 8 (4 + 4) |
| Architecture | - 6 cores at 2 GHz: Cortex-A55 - 2 cores at 2.05 GHz: Cortex-A76 |
- 4 cores at 1.7 GHz: Cortex-A53 - 4 cores at 2.3 GHz: Cortex-A73 |
| Lithography process | 12 nanometers | 10 nanometers |
| Graphics | Mali-G76MC4 | Mali-G72 MP3 |
| GPU clock | 800 MHz | 850 MHz |
| FLOPS | ~184 GFLOPS | ~259 GFLOPS |
| RAM size | 6 GB | 4, 6 GB |
| Memory type | LPDDR4X | LPDDR4X |
| Memory clock | 2133 MHz | 1866 MHz |
| Channels | 2 | 2 |
| Storage size | 64, 128 GB | 64, 128 GB |
| Storage type | UFS 2.1 | UFS 2.0 |
| Memory card | MicroSD | MicroSD |
| Memory card max. size | Up to 512 GB | Up to 512 GB |
Benchmarks
Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)
AnTuTu Benchmark 7
AnTuTu Benchmark 8
Software
| Operating system | Android 9.0 (Can be upgraded to Android 10) | Android 10 (Can be upgraded to Android 11) |
| ROM | MIUI 12 | One UI 3.0 |
| OS size | - | 23 GB |
Battery
| Capacity | 4500 mAh | 4000 mAh |
| Charge power | 18 W | 15 W |
| Battery type | Li-Ion | Li-Po |
| Replaceable | No | No |
| Wireless charging | No | No |
| Reverse charging | No | No |
| Fast charging | Yes (30% in 30 min) | Yes (40% in 35 min) |
| Full charging time | 2:00 hr | 1:50 hr |
Battery life tests
Web browsing (Wi-Fi)
Watching videos (Player)
Talk (3G)
Camera
| Matrix | 64 megapixels | 48 megapixels |
| Image resolution | 9000 x 7000 | 8000 x 6000 |
| 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 60FPS | Up to 30FPS |
| Slow motion | 960 FPS (720p) | 960 FPS (720p) |
| Angle of widest lens | 120° | 120° |
| Lenses | 4 (64 MP + 8 MP + 2 MP + 2 MP) | 4 (48 MP + 12 MP + 5 MP + 5 MP) |
| Wide (main) lens | - 64 MP - Aperture: f/1.9 - Focal length: 26 mm - Pixel size: 0.8 micron - Sensor: 1/1.7", Samsung S5KGW1 (ISOCELL CMOS) - Phase autofocus |
- 48 MP - Aperture: f/2.0 - Focal length: 26 mm - Pixel size: 0.8 micron - Sensor: 1/2", Samsung S5KGM2 (ISOCELL CMOS) - Phase autofocus |
| Ultra-wide lens | - 8 MP - Aperture: f/2.2 - Focal length: 13 mm - Pixel size: 1.12 micron - Sensor: 1/4" (CMOS) |
- 12 MP - Aperture: f/2.2 - Focal length: 13 mm - Pixel size: 1.12 micron |
| Macro lens | - 2 MP - Aperture: f/2.4 - Pixel size: 1.75 micron - Sensor: 1/5" (CMOS) |
- 5 MP - Aperture: f/2.4 - Focal length: 40 mm - Pixel size: 1.12 micron |
| Depth lens | - 2 MP - Aperture: f/2.4 - Pixel size: 1.75 micron - Sensor: 1/5" (CMOS) |
- 5 MP - Aperture: f/2.2 - Pixel size: 1.12 micron - Sensor: 1/5.0" (CMOS) |
| Camera features | - Bokeh mode - Pro mode |
- Bokeh mode - Pro mode |
| Samples | Photo samples of Xiaomi Redmi Note 8 Pro from DxOMark | - |
| Megapixels | 20 megapixels | 32 megapixels |
| Image resolution | 5184 x 3880 | 6560 x 4928 |
| Aperture | f/2.0 | f/2.2 |
| Focal length | - | 26 mm |
| Pixel size | 0.9 microns | 0.8 microns |
| Sensor type | ISOCELL CMOS | ISOCELL CMOS |
| Sensor size | 1/3.1" | 1/2.8" |
| Video resolution | 1080p (Full HD) при 30 FPS | 2160p (4K) при 30 FPS |
DxOMark camera tests
Photo quality
Video quality
Generic camera score
Connectivity
| Wi-Fi standard | Wi-Fi 5 (802.11 b/g/n/ac) | Wi-Fi 5 (802.11 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, HID, 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 - OTG |
- Charging - USB-Storage mode - OTG |
| GPS | GPS, GLONASS, Beidou | GPS, GLONASS, Beidou, Galileo |
| NFC* | Yes | Yes |
| 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 | Yes | No |
| LTE Cat* | 12 | 12 |
| 5G support | No | No |
Sound
| Speakers | Mono | Mono |
| Headphone audio jack | Yes | Yes |
| FM radio | Yes | Yes |
| Dolby Atmos | No | Yes |
Speakers test
Max. loudness
Other
| Category | Mid-range | Mid-range |
| Announced | August 2019 | December 2019 |
| Release date | October 2019 | December 2019 |
| Launch price | ~ 225 USD | ~ 250 USD |
| SAR (head) | 0.38 W/kg | 0.596 W/kg |
| SAR (body) | 0.8 W/kg | 1.45 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
If the performance, battery life, and design are more important to you, then choose the Xiaomi Redmi Note 8 Pro. But if the software and sound are more of a priority – go for the Samsung Galaxy A51.
Cast your vote
Total votes: 1447