Xiaomi Redmi A3 vs Samsung Galaxy S9 Plus

Compared 2 smartphones : Xiaomi Redmi A3 Manufactured in February, 2024, with display 6.71 with chipsetMediaTek Helio G36, vs Samsung Galaxy S9 Plus, Manufactured in March, 2018 with chipsetSamsung Exynos 9 Octa 9810. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Xiaomi Redmi A3
  • Larger display: 6.71in
  • Higher refresh rate: 90Hz
  • Higher battery capacity: 5000mAh vs 3500mAh
  • Newer Bluetooth version: 5.4 vs 5
  • Includes charger
Reasons to choose Samsung Galaxy S9 Plus
  • Higher pixel density: 531ppi
  • Lighter design: 189g vs 199g
  • Supports newer USB: 3.1 vs 2
  • Supports Dolby Atmos

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
- 4/64 GB
- 6/64 GB
- 6/128 GB
- 6/256 GB

Review

Key Specs Xiaomi Redmi A3 and Samsung Galaxy S9 Plus
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.
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Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison

Display

Display quality comparison
Type IPS LCD Super AMOLED
Size 6.71 in 6.2 in
Resolution 720x1650 pixels 1440x2960 pixels
Aspect ratio 20:9 18.5:9
Pixel density 268 ppi 531 ppi
Refresh rate 90 Hz 60 Hz
Adaptive refresh rate No No
Max brightness 420 nits 631 nits
HDR support No Yes HDR10
Screen-to-body ratio 84.6 % 83.6 %
Features n/a Always-On Display
Display test
Peak brightness (auto)
Xiaomi Redmi A3
357 nits
Samsung Galaxy S9 Plus
629 nits
sRGB gamut95.1 %n/a
PWM (Flicker)n/a215 Hz
Response time40 ms7 ms
Contrast1314:1∞ Infinite

Design & Build

Design and ergonomics comparison
Height 168.3 mm (6.63 in) 158.1 mm (6.22 in)
Width 76.3 mm (3 in) 73.8 mm (2.91 in)
Thickness 8.32 mm (0.33 in) 8.5 mm (0.33 in)
Weight 199 g (7.02 oz) 189 g (6.67 oz)
Water resistance No IP68
Back panel Plastic Glass
Frame Plastic Metal
Colors - Black
- Blue
- Green
- Black
- Gold
- Gray
- Red
- Purple
Fingerprint sensor Yes In-Button Yes rear
Screen-to-body ratio
Xiaomi Redmi A3
84.6 %
Samsung Galaxy S9 Plus
83.6 %

Performance

Testing Xiaomi Redmi A3 and Samsung Galaxy S9 Plus In benchmarks
Processor
Chipset MediaTek Helio G36 Samsung Exynos 9 Octa 9810
Max Frequency 2200 MHz 2900 MHz
CPU Cores 8 (4 + 4) 8 (4 + 4)
Architecture - 4/1.8 (Cortex-A53)
- 4/2.2 (Cortex-A53)
- 4/1.9 (Cortex-A55)
- 4/2.9 (Exynos M3)
Process TSMC Samsung
Transistor Size 12 nm 10 nm
Neural Processor No Yes
Graphics PowerVR GE8320 Mali-G72 MP18
GPU Cores 32 324
GPU Frequency 680 MHz 572 MHz
FLOPS 43.5 GFLOPS 370.6 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi Redmi A3
230
Samsung Galaxy S9 Plus
751
Geekbench 6 (Multi-Core)
Xiaomi Redmi A3
840
Samsung Galaxy S9 Plus
1909
Geekbench 6 (Single-Core)230751
Geekbench 6 (Multi-Core)8401909
AnTuTu 10
AnTuTu 10
Xiaomi Redmi A3
153983
Samsung Galaxy S9 Plus
467429
CPU55340142642
GPU10749140091
Memory4286499705
UX4503084991
NanoReview Score153983467429
3DMark Wild Life
3DMark Wild Life
Xiaomi Redmi A3
n/a
Samsung Galaxy S9 Plus
2328
Max Surface Temp.n/a40.7 °C
Stabilityn/a95 %
Graphics Testn/a13 fps
Graphics Scoren/a2328
PCMark 3.0
PCMark 3.0
Xiaomi Redmi A3
n/a
Samsung Galaxy S9 Plus
6261
Writing scoren/a6167
Web scoren/a5425
Video editingn/a5459
Data manipulationn/a5611
NanoReview Scoren/a6261

Memory

RAM
RAM Size - 3 GB
- 4 GB
- 6 GB
6 GB
Memory Type LPDDR4X LPDDR4X
Memory Frequency 1600 MHz 1794 MHz
Channels 2 2
Storage
Storage Capacity- 64 GB
- 128 GB
64 GB
Storage TypeeMMC 5.1UFS 2.1
Memory CardMicroSDMicroSD

Software

OS Android 14 Android 8.0 (Upgradeable to Android 10)
OS Size 19 GB 13.9 GB
UI Skin MIUI Go Edition One UI 2.5

Battery

Volume 5000 mAh 3500 mAh
Max Charging Power 10 W 15 W
Battery Type Li-ion Li-Po
Removable No No
Wireless Charging No Yes Qi/PMA (10 W)
Reverse Charging No No
Fast Charging No Yes (40% in 30 min)
Full Charge Time 2:40 h 1:40 h
Battery Life Test
Battery Life
Xiaomi Redmi A3
n/a
Samsung Galaxy S9 Plus
16:44
Web Browsingn/a06:05 h
Video Playbackn/a10:25 h
Gamesn/a04:17 h
Standby Moden/a84 h

Main camera

Matrix 8 MP 12 MP
Photo resolution 3264x2448 pixels 4032x3024 pixels
Zoom Digital Optical, 2x
Flash LED Dual LED
Stabilization Digital Optical
8K Recording No No
4K Recording No Yes (Up to 60 fps)
1080p Recording Yes (Up to 30 fps) Yes (Up to 240 fps)
Slow Motion No 960 fps (720p)
Lenses count Standard: 8 MP
Depth: 0.08 MP
Standard: 12 MP
Telephoto: 12 MP
Features Bokeh effect - Bokeh effect
- Pro mode
Main lens
Matrix8 MP12 MP
Aperturef/2.0f/1.5 - 2.4
Focal lengthn/a26 mm
Sensorn/aSamsung SAK2L3
Sensor sizen/a1/2.55
Pixel sizen/a1.4 μm
AutofocusPhase autofocusPhase autofocus (Dual Pixel)
StabilizationDigitalOptical
Telephoto
Matrixn/a12 MP
Aperturen/af/2.4
Focal lengthn/a52 mm
Sensor sizen/a1/3.6
Pixel sizen/a1 μm
Stabilizationn/aOptical
Main camera DxOMark results
Photo quality
Xiaomi Redmi A3
n/a
Samsung Galaxy S9 Plus
104
Video quality
Xiaomi Redmi A3
n/a
Samsung Galaxy S9 Plus
91
Overall camera score
Xiaomi Redmi A3
n/a
Samsung Galaxy S9 Plus
99

Front camera

Matrix 5 MP 8 MP
Photo resolution 2592x1944 pixels 3264x2448 pixels
Aperture f/2.2 f/1.7
Focal length n/a 25 mm
Sensor CMOS Samsung S5K3H1
Sensor size n/a 1/3.6
Pixel size n/a 1.22 μm
Autofocus No Phase autofocus (Dual Pixel)
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 1440p 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
- Wi-Fi Display
- Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
Bluetooth version 5.4 5
Bluetooth features LE PBAP/PAB, PAN, OPP, MAP, LE, HSP, HID, HFP, DIP, AVRCP, 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 *NoNo
Hybrid SlotNoYes
2G BandsGSM B2, B3, B5, B8GSM 850, GSM 900, GSM 1800, GSM 1900
3G BandsWCDMA B1, B5, B8HSDPA 850, HSDPA 900, HSDPA 1900, HSDPA 2100
LTE Bands*LTE (B1/B3/B5/B7/B8/B20/B28)LTE (B700/B800/B850/B900/B1700/B1800/B1900/B2100/B2300/B2500/B2600)
LTE category418
5G SupportNoNo

Sound

Speakers Mono Stereo
3.5 mm Jack Yes Yes
FM Radio Yes No
Dolby Atmos No Yes
Speaker Test
Max Volume
Xiaomi Redmi A3
78.8 dB
Samsung Galaxy S9 Plus
85.6 dB

Other

Class Budget Flagship
Announced February, 2024 yr February, 2018 yr
Release Date February, 2024 yr March, 2018 yr
Launch Price ($) 80 840
Sensors - Accelerometer
- Ambient Light Sensor
- Fingerprint sensor
- Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- 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.

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