Xiaomi Redmi Note 9 vs Samsung Galaxy A31

Here we compared two mid-range smartphones: the 6.53-inch Xiaomi Redmi Note 9 (with MediaTek Helio G85) that was released on April 30, 2020, against the Samsung Galaxy A31, which is powered by Mediatek Helio P65 and came out 2 months before. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.

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Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Xiaomi Redmi Note 9
  • 21% better performance in AnTuTu Benchmark (346K versus 286K)
  • Slow-motion recording at 120FPS
  • Reverse charging feature
  • 25% faster in single-core GeekBench 6 test: 516 and 414 points
  • Has a built-in infrared port
Reasons to consider the Samsung Galaxy A31
  • Delivers 37% higher peak brightness (638 against 466 nits)
  • Has 33% more RAM: 4GB versus 3GB
  • Super AMOLED display (versus competitor's IPS LCD)
  • Supports Dolby Atmos sound technology

Review

Evaluation of Xiaomi Redmi Note 9 and Samsung Galaxy A31 crucial features
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.
NanoReview Score
Final comparison evaluation
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๐Ÿ“ฑ Primary usage:

Value for money (Beta)

To get an accurate value-for-money index, update the default prices with actual prices from your countryโ€™s retailers (for the selected memory configs) and press the "Calculate" button.
Currency
3 / 64 GB
VS
4 / 64 GB
79.2
(Good)
Value Index
118.5
(Excellent)

Tests and specifications

Comparison table of technical specifications and tests

Display

Type IPS LCD Super AMOLED
Size 6.53 inches 6.4 inches
Resolution 1080 x 2340 pixels 1080 x 2400 pixels
Aspect ratio 19.5:9 20:9
PPI 395 ppi 411 ppi
Refresh rate 60 Hz 60 Hz
Adaptive refresh rate No No
Max rated brightness 450 nits 600 nits
HDR support No No
Screen protection Corning Gorilla Glass 5 Tempered glass
Screen-to-body ratio 83.5% 84.9%
Display features - - Always-On Display
Display tests
RGB color space 97.7% 96.8%
PWM Not detected 238 Hz
Response time 32.2 ms 8 ms
Contrast 4608:1 โˆž Infinity
Peak brightness test (auto)
466 nits
Galaxy A31 +37%
638 nits
Sources: NotebookCheck [3], [4]

Design and build

Height 162.3 mm (6.39 inches) 159.3 mm (6.27 inches)
Width 77.2 mm (3.04 inches) 73.1 mm (2.88 inches)
Thickness 8.9 mm (0.35 inches) 8.6 mm (0.34 inches)
Weight 199 g (7.02 oz) 185 g (6.53 oz)
Waterproof No No
Rear material Plastic Plastic
Frame material Plastic Plastic
Colors White, Gray, Green White, Black, Blue, Red
Fingerprint scanner Yes, rear Yes, in-display
Screen-to-body ratio
83.5%
84.9%

Performance

Chipset specifications of Xiaomi Redmi Note 9 and Samsung Galaxy A31
SoC
Chipset MediaTek Helio G85 Mediatek Helio P65
Max clock 2000 MHz 2000 MHz
CPU cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6 cores at 1.8 GHz: Cortex-A55
- 2 cores at 2 GHz: Cortex-A75
- 6 cores at 1.7 GHz: Cortex-A55
- 2 cores at 2 GHz: Cortex-A75
Manufacturing TSMC TSMC
Lithography process 12 nanometers 12 nanometers
Neural processor (NPU) Yes Yes
GPU
Graphics Mali-G52 MP2 Arm Mali-G52 2EEMC2
GPU shading units 48 48
GPU clock 1000 MHz 820 MHz
FLOPS ~96 GFLOPS ~78.7 GFLOPS

Benchmarks

Benchmark comparison of Xiaomi Redmi Note 9 and Samsung Galaxy A31
Geekbench 6 (Single-Core)
516
Geekbench 6 (Multi-Core)
1562
1183
Compute Score (GPU)
Compute Score (GPU) - 968
Single-core score 516 414
Multi-core score 1562 1183
Sources: Geekbench [3]
AnTuTu Benchmark 11
346495
286046
CPU 155097 126654
GPU 28220 16593
Memory 78693 65117
UX 84485 77682
Total score 346495 286046
Samples [2 tests] [4 tests]

Recent User Tests

The latest benchmark tests that have been submitted by users
Xiaomi Redmi Note 9
DateBenchmarkResult
๐Ÿ“˜ 2026-07-03 (viko)AnTuTu 11338364
๐Ÿ“˜ 2025-11-08 (Ryuu)AnTuTu 11346495
Samsung Galaxy A31
DateBenchmarkResult
๐Ÿ“˜ 2026-05-05 (ะ”ะผะธั‚ั€ะธะน)AnTuTu 11285204
๐Ÿ“˜ 2026-05-01 -> KntbekovvdkgAnTuTu 11241611
๐Ÿ“˜ 2025-12-28 (ะงะ˜ะ›ะ˜ะš)AnTuTu 11286046
๐Ÿ“˜ 2025-10-30 (Todoshi)AnTuTu 11290447
๐Ÿ“˜ 2024-04-18 (samueltails)Geekbench 6 GPU968

Memory

RAM
RAM size 3 GB 4 GB
Memory type LPDDR4X LPDDR4X
Memory clock 1800 MHz 1866 MHz
Channels 2 2
Storage
Storage size 64 GB 64 GB
Storage type eMMC 5.1 eMMC 5.1
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 MIUI 13 One UI 4.1
OS size 16.5 GB 27 GB
OS updates - 2 years
Security updates - 4 years

Battery

Capacity 5020 mAh 5000 mAh
Max charge power 18 W 15 W
Battery type Li-Po Li-Ion
Replaceable No No
Wireless charging No No
Reverse charging Yes No
Fast charging Yes (50% in 40 min) Yes, Samsung Adaptive Fast Charge (50% in 60 min)
Full charging time 1:30 hr 2:25 hr
Battery life tests
Web browsing 09:31 hr 10:26 hr
Watching video 14:21 hr 14:36 hr
Gaming 05:45 hr 05:44 hr
Standby 121 hr 126 hr
General battery life
24:19 hr
25:27 hr

Main camera

Matrix 48 megapixels 48 megapixels
Image resolution 8000 x 6000 8000 x 6000
Zoom Digital Digital
Flash LED LED
Stabilization Digital Digital
8K video recording No No
4K video recording No No
1080p video recording Up to 30FPS Up to 30FPS
Slow motion 120 FPS (720p) No
Angle of widest lens 118ยฐ 123ยฐ
Lenses 1) Standard: 48 MP
2) Ultrawide: 8 MP
3) Macro: 2 MP
4) Depth: 2 MP
1) Standard: 48 MP
2) Ultrawide: 8 MP
3) Macro: 5 MP
4) Depth: 5 MP
Camera features - Bokeh mode
- Pro mode
- Bokeh mode
- Pro mode
Standard lens
Image resolution 48 MP 48 MP
Aperture f/1.8 f/2.0
Focal length 26 mm 26 mm
Sensor Samsung S5KGM1 Samsung S5KGM2
Sensor size 1/2.0" (โ‰ˆ 0.5 inch) 1/2.0" (โ‰ˆ 0.5 inch)
Pixel size 0.8 micron 0.8 micron
Autofocus Phase autofocus Phase autofocus
Stabilization Digital Digital
Ultra-wide lens
Image resolution 8 MP 8 MP
Aperture f/2.2 f/2.2
Focal length - 13 mm
Sensor size 1/4.0" (โ‰ˆ 0.25 inch) 1/4.0" (โ‰ˆ 0.25 inch)
Pixel size 1.12 micron 1.12 micron
Stabilization Digital Digital
Macro lens
Image resolution 2 MP 5 MP
Aperture f/2.4 f/2.4
Pixel size 1.75 micron -
Stabilization Digital No

Selfie camera

Megapixels 13 megapixels 20 megapixels
Image resolution 4128 x 3096 5963 x 3354
Aperture f/2.3 f/2.2
Focal length 29 mm -
Sensor CMOS CMOS
Sensor size 1/3.1" (โ‰ˆ 0.32 inch) -
Pixel size 1.12 micron -
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
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, Galileo GPS, GLONASS, Beidou, Galileo
NFC* Yes Yes
Infrared port Yes No
Network
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* 7 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
92.4 dB
78.5 dB

Other

Category Mid-range Mid-range
Announced April 2020 March 2020
Release date June 2020 April 2020
Launch price (MSRP) $199 $210
Successor - Xiaomi Redmi Note 17 4G - Samsung Galaxy A37 5G
SAR (head) 0.8 W/kg 0.49 W/kg
SAR (body) 1.14 W/kg 1.68 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 camera and performance are more important to you, then choose the Xiaomi Redmi Note 9. But if the display, gaming, connectivity, design, and sound are more of a priority โ€“ go for the Samsung Galaxy A31.

Cast your vote

So, which phone would you choose?
352 (51.5%)
331 (48.5%)
Total votes: 683

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