Home Phone comparison Xiaomi Redmi A3 and Samsung Galaxy S20 - Which is better?

Xiaomi Redmi A3 vs Samsung Galaxy S20

40 out 100
Xiaomi Redmi A3
VS
62 out 100
Samsung Galaxy S20
Xiaomi Redmi A3
Samsung Galaxy S20

Compared 2 smartphones : Xiaomi Redmi A3 Manufactured in February, 2024, with display 6.71 with chipsetMediaTek Helio G36, vs Samsung Galaxy S20, Manufactured in March, 2020 with chipsetSamsung Exynos 9 Octa 990. 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 Xiaomi Redmi A3
  • Larger display: 6.71in
  • Higher battery capacity: 5000mAh vs 4000mAh
  • Newer Bluetooth version: 5.4 vs 5
  • Includes charger
Reasons to choose Samsung Galaxy S20
  • Higher pixel density: 563ppi
  • Higher refresh rate: 120Hz
  • Lighter design: 163g vs 199g
  • Supports newer USB: 3.1 vs 2
  • Supports Dolby Atmos
  • Built-in eSIM

Versions

Available versions and configurations
Memory Options - 2/64 GB
- 3/64 GB
- 3/128 GB
- 4/64 GB
- 4/128 GB
- 6/128 GB		 8/128 GB

Review

Key Specs Xiaomi Redmi A3 and Samsung Galaxy S20
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:
Xiaomi Redmi A3
vs
Samsung Galaxy S20

Display

Display quality comparison
Type IPS LCD Dynamic AMOLED
Size 6.71 in 6.2 in
Resolution 720x1650 pixels 1440x3200 pixels
Aspect ratio 20:9 20:9
Pixel density 268 ppi 563 ppi
Refresh rate 90 Hz 120 Hz
Adaptive refresh rate No No
Max brightness 420 nits 800 nits
HDR support No Yes HDR10+
Screen-to-body ratio 84.6 % 88.5 %
Features n/a - DCI-P3
- Always-On Display
Display test
Peak brightness (auto)
Xiaomi Redmi A3
357 nits
Samsung Galaxy S20
809 nits
sRGB gamut95.1 %99.8 %
PWM (Flicker)n/a242 Hz
Response time40 ms8.5 ms
Contrast1314:1∞ Infinite
Sources: NotebookCheck [Xiaomi Redmi A3], [Samsung Galaxy S20]

Design & Build

Design and ergonomics comparison
Height 168.3 mm (6.63 in) 151.7 mm (5.97 in)
Width 76.3 mm (3 in) 69.1 mm (2.72 in)
Thickness 8.32 mm (0.33 in) 7.9 mm (0.31 in)
Weight 199 g (7.02 oz) 163 g (5.75 oz)
Water resistance No IP68
Back panel Plastic Glass
Frame Plastic Metal
Colors - Black
- Blue
- Green		 - Gray
- Blue
- Red
Fingerprint sensor Yes In-Button Yes In-Display
Screen-to-body ratio
Xiaomi Redmi A3
84.6 %
Samsung Galaxy S20
88.5 %

Performance

Testing Xiaomi Redmi A3 and Samsung Galaxy S20 In benchmarks
Processor
Chipset MediaTek Helio G36 Samsung Exynos 9 Octa 990
Max Frequency 2200 MHz 3020 MHz
CPU Cores 8 (4 + 4) 8 (2 + 2 + 4)
Architecture - 4/1.8 (Cortex-A53)
- 4/2.2 (Cortex-A53)		 - 4/2 (Cortex-A55)
- 2/2.5 (Cortex-A76)
- 2/2.73 (Exynos M5)
Process TSMC Samsung
Transistor Size 12 nm 7 nm
Neural Processor No Yes
Graphics PowerVR GE8320 Mali-G77 MP11
GPU Cores 32 704
GPU Frequency 680 MHz 550 MHz
FLOPS 43.5 GFLOPS 1126 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi Redmi A3
230
Samsung Galaxy S20
1139
Geekbench 6 (Multi-Core)
Xiaomi Redmi A3
840
Samsung Galaxy S20
3080
Geekbench 6 (Single-Core)2301139
Geekbench 6 (Multi-Core)8403080
AnTuTu 10
AnTuTu 10
Xiaomi Redmi A3
153983
Samsung Galaxy S20
680061
CPU55340206940
GPU10749180770
Memory42864136999
UX45030155352
NanoReview Score153983680061
3DMark Wild Life
3DMark Wild Life
Xiaomi Redmi A3
n/a
Samsung Galaxy S20
4221
Max Surface Temp.n/a49.7 °C
Stabilityn/a51 %
Graphics Testn/a25 fps
Graphics Scoren/a4221
Sources: 3DMark [Samsung Galaxy S20]
PCMark 3.0
PCMark 3.0
Xiaomi Redmi A3
n/a
Samsung Galaxy S20
11213
Writing scoren/a13300
Web scoren/a9221
Video editingn/a6001
Data manipulationn/a8487
NanoReview Scoren/a11213

Memory

RAM
RAM Size - 3 GB
- 4 GB
- 6 GB		 8 GB
Memory Type LPDDR4X LPDDR5
Memory Frequency 1600 MHz 3200 MHz
Channels 2 2
Storage
Storage Capacity- 64 GB
- 128 GB		128 GB
Storage TypeeMMC 5.1UFS 3.0
Memory CardMicroSDMicroSD

Software

OS Android 14 Android 10.0 (Upgradeable to Android 13)
OS Size 19 GB 20.1 GB
UI Skin MIUI Go Edition One UI 5.1

Battery

Volume 5000 mAh 4000 mAh
Max Charging Power 10 W 25 W
Battery Type Li-ion Li-ion
Removable No No
Wireless Charging No Yes (15 W)
Reverse Charging No Yes (Wireless)
Fast Charging No Yes (100% in 75 min)
Full Charge Time 2:40 h 1:15 h
Battery Life Test
Battery Life
Xiaomi Redmi A3
n/a
Samsung Galaxy S20
16:07
Web Browsingn/a06:49 h
Video Playbackn/a10:33 h
Gamesn/a04:30 h
Standby Moden/a69 h

Main camera

Matrix 8 MP 12 MP
Photo resolution 3264x2448 pixels 4000x3000 pixels
Zoom Digital Optical, 1.1x
Flash LED LED
Stabilization Digital Optical
8K Recording No Up to 24FPS
4K Recording No Yes (Up to 60 fps)
1080p Recording Yes (Up to 30 fps) Yes (Up to 60 fps)
Slow Motion No 960 fps (720p)
Wide-angle lens n/a 120 °
Lenses count Standard: 8 MP
Depth: 0.08 MP		 Standard: 12 MP
Telephoto: 64 MP
Ultra-wide: 12 MP
Features Bokeh effect - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix8 MP12 MP
Aperturef/2.0f/1.8
Focal lengthn/a26 mm
Sensorn/aSamsung S5K2LD
Sensor sizen/a1/1.76
Pixel sizen/a1.8 μm
AutofocusPhase autofocusPhase autofocus (Dual Pixel)
StabilizationDigitalOptical
Telephoto
Matrixn/a64 MP
Aperturen/af/2.0
Focal lengthn/a29 mm
Sensorn/aSamsung Bright S5KGW2
Sensor sizen/a1/1.72
Pixel sizen/a0.8 μm
Stabilizationn/aOptical
Ultra-wide lens
Matrixn/a12 MP
Aperturen/af/2.2
Focal lengthn/a13 mm
Sensorn/aSamsung S5K2LA
Sensor sizen/a1/2.55
Pixel sizen/a1.4 μm
Stabilizationn/aDigital

Front camera

Matrix 5 MP 10 MP
Photo resolution 2592x1944 pixels 2592x3872 pixels
Aperture f/2.2 f/2.2
Focal length n/a 26 mm
Sensor CMOS Samsung S5K3J1
Sensor size n/a 1/3.2
Pixel size n/a 1.22 μm
Autofocus No Phase autofocus (Dual Pixel)
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 2160p (4K) at 60 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 6 (802.11 b/g/n/ac/ax)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5.4 5
Bluetooth features LE LE, A2DP
USB type USB Type-C USB Type-C
USB version 2 3.1
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort No n/a
GPS - GPS
- GLONASS
- Beidou
- Galileo		 - GPS
- GLONASS
- Beidou
- Galileo
NFC* No Yes
Infrared Port No No
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoYes
Hybrid SlotNoYes
2G BandsGSM B2, B3, B5, B8GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G BandsWCDMA B1, B5, B8HSDPA 850 / 900 / 1900 / 2100
LTE Bands*LTE (B1/B3/B5/B7/B8/B20/B28)LTE (B850/B900/B1700/B1900/B2100)
LTE category422
5G SupportNoNo

Sound

Speakers Mono Stereo
3.5 mm Jack Yes No
FM Radio Yes No
Dolby Atmos No Yes
Speaker Test
Max Volume
Xiaomi Redmi A3
78.8 dB
Samsung Galaxy S20
85.9 dB

Other

Class Budget Flagship
Announced February, 2024 yr February, 2020 yr
Release Date February, 2024 yr March, 2020 yr
Launch Price ($) 80 999
Sensors - Accelerometer
- Ambient Light Sensor
- Fingerprint sensor		 - Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Compass
- Fingerprint sensor
Charger Included Yes 10 W n/a

Note

Xiaomi Redmi A3:

The smartphone in green color is 7 grams lighter than the others.

* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Samsung Galaxy S20 the clear winner in this comparison.

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