Home Phone comparison Samsung Galaxy A31 and Xiaomi Redmi 15 5G - Which is better?

Samsung Galaxy A31 vs Xiaomi Redmi 15 5G

43 out 100
Samsung Galaxy A31
VS
61 out 100
Xiaomi Redmi 15 5G
Samsung Galaxy A31
Xiaomi Redmi 15 5G

Compared 2 smartphones : Samsung Galaxy A31 Manufactured in April, 2020, with display 6.4 with chipsetMediatek Helio P65, vs Xiaomi Redmi 15 5G, Manufactured in August, 2025with chipsetQualcomm Snapdragon 6s Gen 3. Below are specs, tests, pros and cons for each device

  1. Differences
  2. Review
  3. Specs
  4. Benchmarks
  5. Battery Life
  6. Cameras
  7. Comments (0)

Key Differences

Device key advantages
Reasons to choose Samsung Galaxy A31
  • Higher pixel density: 411ppi
  • Lighter design: 185g vs 224g
  • Supports Dolby Atmos
Reasons to choose Xiaomi Redmi 15 5G
  • Larger display: 6.9in
  • Higher refresh rate: 144Hz
  • Higher battery capacity: 7000mAh vs 5000mAh
  • Newer Bluetooth version: 5.1 vs 5
  • Infrared port
  • Includes charger

Versions

Available versions and configurations
Memory Options - 4/64 GB
- 4/128 GB
- 6/128 GB
- 8/128 GB		 - 4/128 GB
- 6/128 GB
- 8/256 GB

Review

Key Specs Samsung Galaxy A31 and Xiaomi Redmi 15 5G
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
NanoReview Score
Overall score by NanoReview
Adjust each parameter’s importance to find the best match for you.
Customize your score
Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison
Smartphones:
Samsung Galaxy A31
vs
Xiaomi Redmi 15 5G

Display

Display quality comparison
Type Super AMOLED IPS LCD
Size 6.4 in 6.9 in
Resolution 1080x2400 pixels 1080x2340 pixels
Aspect ratio 20:9 19.5:9
Pixel density 411 ppi 374 ppi
Refresh rate 60 Hz 144 Hz
Adaptive refresh rate No Yes
Max brightness 600 nits n/a
HDR support No No
Screen-to-body ratio 84.9 % 83.1 %
Features Always-On Display n/a
Display test
Peak brightness (auto)
Samsung Galaxy A31
629 nits
Xiaomi Redmi 15 5G
n/a
sRGB gamut96.8 %n/a
PWM (Flicker)238 Hzn/a
Response time8 msn/a
Contrast∞ Infiniten/a
Sources: NotebookCheck [Samsung Galaxy A31]

Design & Build

Design and ergonomics comparison
Height 159.3 mm (6.27 in) 171.1 mm (6.74 in)
Width 73.1 mm (2.88 in) 82.1 mm (3.23 in)
Thickness 8.6 mm (0.34 in) 8.6 mm (0.34 in)
Weight 185 g (6.53 oz) 224 g (7.9 oz)
Water resistance No IP64
Back panel Plastic Plastic
Frame Plastic Plastic
Colors - White
- Black
- Blue
- Red		 - Black
- Gray
- Green
Fingerprint sensor Yes In-Display Yes, In-Button
Screen-to-body ratio
Samsung Galaxy A31
84.9 %
Xiaomi Redmi 15 5G
83.1 %

Performance

Testing Samsung Galaxy A31 and Xiaomi Redmi 15 5G In benchmarks
Processor
Chipset Mediatek Helio P65 Qualcomm Snapdragon 6s Gen 3
Max Frequency 2000 MHz 2300 MHz
CPU Cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6/1.7 (Cortex-A55)
- 2/2 (Cortex-A75)		 - 6/2 (Cortex-A55)
- 2/2.3 (Cortex-A78)
Process TSMC TSMC
Transistor Size 12 nm 6 nm
Neural Processor Yes Hexagon
Graphics Mali-G52 MP2 Adreno 619
GPU Cores 48 256
GPU Frequency 820 MHz 900 MHz
FLOPS 78.7 GFLOPS 460.8 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Samsung Galaxy A31
509
Xiaomi Redmi 15 5G
935
Geekbench 6 (Multi-Core)
Samsung Galaxy A31
1553
Xiaomi Redmi 15 5G
2109
Geekbench 6 (Single-Core)509935
Geekbench 6 (Multi-Core)15532109
AnTuTu 10
AnTuTu 10
Samsung Galaxy A31
197929
Xiaomi Redmi 15 5G
473154
CPU74327153170
GPU2421891687
Memory4549199792
UX53893128505
NanoReview Score197929473154
3DMark Wild Life
3DMark Wild Life
Samsung Galaxy A31
572
Xiaomi Redmi 15 5G
n/a
Max Surface Temp.45.2 °Cn/a
Stability97 %n/a
Graphics Test3 fpsn/a
Graphics Score572n/a
Sources: 3DMark [Samsung Galaxy A31]
PCMark 3.0
PCMark 3.0
Samsung Galaxy A31
5615
Xiaomi Redmi 15 5G
n/a
Writing score5825n/a
Web score4447n/a
Video editing4920n/a
Data manipulation4420n/a
NanoReview Score5615n/a

Memory

RAM
RAM Size 4 GB 4 GB
Memory Type LPDDR4X LPDDR4X
Memory Frequency 1866 MHz 2133 MHz
Channels 2 2
Storage
Storage Capacity- 64 GB
- 128 GB		128 GB
Storage TypeeMMC 5.1UFS 2.2
Memory CardMicroSDNo

Software

OS Android 10 (Upgradeable to Android 12) Android 15
OS Size 27 GB n/a
UI Skin One UI 4.1 HyperOS 2.0

Battery

Volume 5000 mAh 7000 mAh
Max Charging Power 15 W 33 W
Battery Type Li-ion n/a
Removable No No
Wireless Charging No No
Reverse Charging No No
Fast Charging Yes Samsung Adaptive Fast Charge (50% in 60 min) Yes
Full Charge Time 2:25 h n/a
Battery Life Test
Battery Life
Samsung Galaxy A31
25:27
Xiaomi Redmi 15 5G
n/a
Web Browsing10:26 hn/a
Video Playback14:36 hn/a
Games05:44 hn/a
Standby Mode126 hn/a

Main camera

Matrix 48 MP 50 MP
Photo resolution 8000x6000 pixels n/a
Zoom Digital Digital
Flash LED LED
Stabilization Digital Digital
8K Recording No No
4K Recording No No
1080p Recording Yes (Up to 30 fps) Yes (Up to 30 fps)
Slow Motion No n/a
Wide-angle lens 123 ° n/a
Lenses count Standard: 48 MP
Ultra-wide: 8 MP
Macro: 5 MP
Depth: 5 MP		 Standard: 50 MP
Depth
Features - Bokeh effect
- Pro mode		 Bokeh effect
Main lens
Matrix48 MP50 MP
Aperturef/2.0f/1.8
Focal length26 mmn/a
SensorSamsung S5KGM2n/a
Sensor size1/2.0n/a
Pixel size0.8 μmn/a
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalDigital
Ultra-wide lens
Matrix8 MPn/a
Aperturef/2.2n/a
Focal length13 mmn/a
Sensor size1/4.0n/a
Pixel size1.12 μmn/a
StabilizationDigitaln/a

Front camera

Matrix 20 MP 8 MP
Photo resolution 5963x3354 pixels n/a
Aperture f/2.2 f/2.0
Sensor CMOS n/a
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 5 (802.11 a/b/g/n/ac)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot		 - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5 5.1
Bluetooth features PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP 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
GPS - GPS
- GLONASS
- Beidou
- Galileo		 - GPS
- GLONASS
- Beidou
- Galileo
NFC* Yes Yes
Infrared Port No Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM850, GSM900, DCS1800, PCS1900n/a
3G BandsB1 (2100), B2 (1900), B5(850), B8 (900)n/a
LTE Bands*LTE (B1/B2/B3/B5/B7/B8/B20/B38/B40/B41)n/a
LTE category12n/a
5G SupportNoYes

Sound

Speakers Mono n/a
3.5 mm Jack Yes Yes
FM Radio Yes Yes
Dolby Atmos Yes n/a
Speaker Test
Max Volume
Samsung Galaxy A31
78.5 dB
Xiaomi Redmi 15 5G
n/a

Other

Class Mid-range Mid-range
Announced March, 2020 yr August, 2025 yr
Release Date April, 2020 yr August, 2025 yr
Launch Price ($) 210 n/a
MSRP ($) n/a 230
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included n/a Yes, 33 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Xiaomi Redmi 15 5G the clear winner in this comparison.

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