Samsung Galaxy A02s vs Xiaomi Redmi Note 9 Pro

Compared 2 smartphones : Samsung Galaxy A02s Manufactured in January, 2021, with display 6.5 with chipsetQualcomm Snapdragon 450, vs Xiaomi Redmi Note 9 Pro, Manufactured in May, 2020 with chipsetQualcomm Snapdragon 720G. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Samsung Galaxy A02s
  • Lighter design: 196g vs 209g
  • Supports Dolby Atmos
Reasons to choose Xiaomi Redmi Note 9 Pro
  • Larger display: 6.67in
  • Higher pixel density: 395ppi
  • Higher battery capacity: 5020mAh vs 5000mAh
  • Newer Bluetooth version: 5 vs 4.2
  • Infrared port
  • Fingerprint scanner

Versions

Available versions and configurations
Memory Options - 1/16 GB
- 2/32 GB
- 3/32 GB
- 3/64 GB
- 4/32 GB
- 4/64 GB
- 4/64 GB
- 4/128 GB
- 6/128 GB

Review

Key Specs Samsung Galaxy A02s and Xiaomi Redmi Note 9 Pro
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

Display

Display quality comparison
Type PLS TFT IPS LCD
Size 6.5 in 6.67 in
Resolution 720x1600 pixels 1080x2400 pixels
Aspect ratio 20:9 20:9
Pixel density 270 ppi 395 ppi
Refresh rate 60 Hz 60 Hz
Adaptive refresh rate No No
Max brightness 400 nits 450 nits
HDR support No Yes HDR10
Screen-to-body ratio 81.9 % 84.4 %
Display test
Peak brightness (auto)
Samsung Galaxy A02s
455 nits
Xiaomi Redmi Note 9 Pro
615 nits
sRGB gamut95.5 %99.8 %
PWM (Flicker)n/a2404 Hz
Response time37 ms35.2 ms
Contrast1095:11649:1

Design & Build

Design and ergonomics comparison
Height 164.2 mm (6.46 in) 165.8 mm (6.53 in)
Width 75.9 mm (2.99 in) 76.7 mm (3.02 in)
Thickness 9.1 mm (0.36 in) 8.8 mm (0.35 in)
Weight 196 g (6.91 oz) 209 g (7.37 oz)
Water resistance No No
Back panel Plastic Glass
Frame Plastic Plastic
Colors - White
- Black
- White
- Gray
- Green
Fingerprint sensor No Yes In-Button
Screen-to-body ratio
Samsung Galaxy A02s
81.9 %
Xiaomi Redmi Note 9 Pro
84.4 %

Performance

Testing Samsung Galaxy A02s and Xiaomi Redmi Note 9 Pro In benchmarks
Processor
Chipset Qualcomm Snapdragon 450 Qualcomm Snapdragon 720G
Max Frequency 1800 MHz 2300 MHz
CPU Cores 8 (8) 8 (2 + 6)
Architecture 8/1.8 (Cortex-A53) - 6/1.8 (Kryo 465 Silver (Cortex-A55))
- 2/2.3 (Kryo 465 Gold (Cortex-A76))
Process Samsung Samsung
Transistor Size 14 nm 8 nm
Neural Processor Hexagon 546 Hexagon 692
Graphics Adreno 506 Adreno 618
GPU Cores 96 256
GPU Frequency 720 MHz 750 MHz
FLOPS 115.2 GFLOPS 384 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Samsung Galaxy A02s
472
Xiaomi Redmi Note 9 Pro
719
Geekbench 6 (Multi-Core)
Samsung Galaxy A02s
1523
Xiaomi Redmi Note 9 Pro
1874
Geekbench 6 (Single-Core)472719
Geekbench 6 (Multi-Core)15231874
AnTuTu 10
AnTuTu 10
Samsung Galaxy A02s
125214
Xiaomi Redmi Note 9 Pro
389839
CPU45078139577
GPU1491373153
Memory4080072832
UX24423104277
NanoReview Score125214389839
3DMark Wild Life
3DMark Wild Life
Samsung Galaxy A02s
n/a
Xiaomi Redmi Note 9 Pro
1044
Max Surface Temp.n/a42.3 °C
Stabilityn/a99 %
Graphics Testn/a6 fps
Graphics Scoren/a1044
PCMark 3.0
PCMark 3.0
Samsung Galaxy A02s
n/a
Xiaomi Redmi Note 9 Pro
8136
Writing scoren/a9643
Web scoren/a6022
Video editingn/a5453
Data manipulationn/a6923
NanoReview Scoren/a8136

Memory

RAM
RAM Size 3 GB - 4 GB
- 6 GB
- 8 GB
Memory Type LPDDR3 LPDDR4X
Memory Frequency 933 MHz 2133 MHz
Channels 1 2
Storage
Storage Capacity32 GB- 64 GB
- 128 GB
Storage TypeeMMC 5.1UFS 2.1
Memory CardMicroSDMicroSD

Software

OS Android 10.0 (Upgradeable to Android 12) Android 10.0 (Upgradeable to Android 12)
OS Size 15 GB 18.9 GB
UI Skin One UI Core 4.1 MIUI 14

Battery

Volume 5000 mAh 5020 mAh
Max Charging Power 15 W 33 W
Battery Type Li-ion Li-Po
Removable No No
Wireless Charging No No
Reverse Charging No No
Fast Charging Yes (30% in 30 min) Yes (50% in 30 min)
Full Charge Time 2:36 h 1:20 h
Battery Life Test
Battery Life
Samsung Galaxy A02s
25:11
Xiaomi Redmi Note 9 Pro
26:36
Web Browsing10:18 h10:27 h
Video Playback14:17 h13:57 h
Games05:42 h05:33 h
Standby Mode125 h143 h

Main camera

Matrix 13 MP 64 MP
Photo resolution 4128x3096 pixels 9248x6920 pixels
Zoom Digital Digital
Flash LED LED
Stabilization Digital Digital
8K Recording No No
4K Recording No Yes (Up to 30 fps)
1080p Recording Yes (Up to 30 fps) Yes (Up to 60 fps)
Slow Motion No 960 fps (720p)
Wide-angle lens n/a 119 °
Lenses count Standard: 13 MP
Macro: 2 MP
Depth: 2 MP
Standard: 64 MP
Ultra-wide: 8 MP
Macro: 5 MP
Depth: 2 MP
Features Bokeh effect - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix13 MP64 MP
Aperturef/1.8f/1.9
Focal lengthn/a26 mm
Sensorn/aSamsung Bright S5KGW1
Sensor sizen/a1/1.72
Pixel sizen/a0.8 μm
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalDigital
Ultra-wide lens
Matrixn/a8 MP
Aperturen/af/2.2
Focal lengthn/a13 mm
Sensorn/aGalaxyCore GC8034
Sensor sizen/a1/4.0
Pixel sizen/a1.12 μm
Stabilizationn/aDigital

Front camera

Matrix 5 MP 16 MP
Photo resolution 2560x1960 pixels 4920x3264 pixels
Aperture f/2.2 f/2.48
Sensor CMOS OmniVision OV32A1Q
Sensor size n/a 1/3.1
Pixel size n/a 1 μm
Autofocus No No
Stabilization No Digital
Video resolution 720p at 30 fps 1080p (Full HD) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 4 (802.11 a/b/g/n) Wi-Fi 5 (802.11 a/b/g/n/ac)
Wi-Fi features - Wi-Fi Direct
- Wi-Fi Hotspot
- Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 4.2 5
Bluetooth features LE, A2DP LE, HID, A2DP
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB Storage Mode
- Charging
- USB Storage Mode
- OTG
GPS - GPS
- GLONASS
- Beidou
- Galileo
- GPS
- GLONASS
- Beidou
- Galileo
- NAVIC
NFC* No Yes
Infrared Port No Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM 800 / 850 / 900 / 1800 / 2100 / 2600GSM 850 / 900 / 1800 / 2100 / 2600 / 2300 / 2500
3G BandsUMTS 850 / 900 / 1900 / 2100HSDPA 850 / 900 / 1900 / 2100
LTE Bands*LTE (B800/B850/B900/B1800/B2100/B2600)LTE (B850/B900/B1800/B2100/B2300/B2500/B2600)
LTE category412
5G SupportNoNo

Sound

Speakers Mono Mono
3.5 mm Jack Yes Yes
FM Radio Yes Yes
Dolby Atmos Yes No
Speaker Test
Max Volume
Samsung Galaxy A02s
80 dB
Xiaomi Redmi Note 9 Pro
87.1 dB

Other

Class Budget Mid-range
Announced November, 2020 yr April, 2020 yr
Release Date January, 2021 yr May, 2020 yr
Launch Price ($) 150 185
Sensors - Proximity Sensor
- Accelerometer
- Ambient Light Sensor
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Xiaomi Redmi Note 9 Pro the clear winner in this comparison.

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