Home Phone comparison Xiaomi Redmi 9 and Samsung Galaxy A8 (2018) - Which is better?

Xiaomi Redmi 9 vs Samsung Galaxy A8 (2018)

42 out 100
Xiaomi Redmi 9
VS
36 out 100
Samsung Galaxy A8 (2018)
Xiaomi Redmi 9
Samsung Galaxy A8 (2018)

Compared 2 smartphones : Xiaomi Redmi 9 Manufactured in July, 2020, with display 6.53 with chipsetMediaTek Helio G80, vs Samsung Galaxy A8 (2018), Manufactured in January, 2018 with chipsetSamsung Exynos 7 Octa 7885. 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 9
  • Larger display: 6.53in
  • Higher battery capacity: 5020mAh vs 3000mAh
  • Infrared port
  • Includes charger
Reasons to choose Samsung Galaxy A8 (2018)
  • Higher pixel density: 441ppi
  • Lighter design: 172g vs 198g
  • Supports Dolby Atmos

Versions

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

Review

Key Specs Xiaomi Redmi 9 and Samsung Galaxy A8 (2018)
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
Smartphones:
Xiaomi Redmi 9
vs
Galaxy A8 (2018)

Display

Display quality comparison
Type IPS LCD Super AMOLED
Size 6.53 in 5.6 in
Resolution 1080x2340 pixels 1080x2220 pixels
Aspect ratio 19.5:9 18.5:9
Pixel density 395 ppi 441 ppi
Refresh rate 60 Hz 60 Hz
Adaptive refresh rate No No
Max brightness 400 nits 390 nits
HDR support No No
Screen-to-body ratio 83.2 % 75.5 %
Display test
Peak brightness (auto)
Xiaomi Redmi 9
423 nits
Samsung Galaxy A8 (2018)
586 nits
sRGB gamut93 %n/a
PWM (Flicker)500 Hz242 Hz
Response time35 ms4.6 ms
Contrast710:1∞ Infinite
Sources: NotebookCheck [Xiaomi Redmi 9], [Samsung Galaxy A8 (2018)]

Design & Build

Design and ergonomics comparison
Height 163.3 mm (6.43 in) 149.2 mm (5.87 in)
Width 77 mm (3.03 in) 70.6 mm (2.78 in)
Thickness 9.1 mm (0.36 in) 8.4 mm (0.33 in)
Weight 198 g (6.98 oz) 172 g (6.07 oz)
Water resistance No IP68
Back panel Plastic Glass
Frame Plastic Metal
Colors - Gray
- Green
- Purple		 - Black
- Gold
- Blue
Fingerprint sensor Yes rear Yes rear
Screen-to-body ratio
Xiaomi Redmi 9
83.2 %
Samsung Galaxy A8 (2018)
75.5 %

Performance

Testing Xiaomi Redmi 9 and Samsung Galaxy A8 (2018) In benchmarks
Processor
Chipset MediaTek Helio G80 Samsung Exynos 7 Octa 7885
Max Frequency 2000 MHz 2200 MHz
CPU Cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6/1.8 (Cortex-A55)
- 2/2 (Cortex-A75)		 - 6/1.6 (Cortex-A53)
- 2/2.2 (Cortex-A73)
Process TSMC Samsung
Transistor Size 12 nm 14 nm
Neural Processor Yes No
Graphics Mali-G52 MP2 Mali-G71 MP2
GPU Cores 48 32
GPU Frequency 950 MHz 770 MHz
FLOPS 91.2 GFLOPS 70.4 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi Redmi 9
514
Samsung Galaxy A8 (2018)
n/a
Geekbench 6 (Multi-Core)
Xiaomi Redmi 9
1559
Samsung Galaxy A8 (2018)
n/a
Geekbench 6 (Single-Core)514n/a
Geekbench 6 (Multi-Core)1559n/a
AnTuTu 10
AnTuTu 10
Xiaomi Redmi 9
263655
Samsung Galaxy A8 (2018)
202681
CPU9363473673
GPU3888326657
Memory6298350080
UX6815552271
NanoReview Score263655202681
3DMark Wild Life
3DMark Wild Life
Xiaomi Redmi 9
664
Samsung Galaxy A8 (2018)
n/a
Max Surface Temp.47 °Cn/a
Stability98 %n/a
Graphics Test3 fpsn/a
Graphics Score664n/a
Sources: 3DMark [Xiaomi Redmi 9]
PCMark 3.0
PCMark 3.0
Xiaomi Redmi 9
8330
Samsung Galaxy A8 (2018)
n/a
Writing score9134n/a
Web score7371n/a
Video editing5562n/a
Data manipulation6064n/a
NanoReview Score8330n/a

Memory

RAM
RAM Size - 3 GB
- 4 GB
- 6 GB		 4 GB
Memory Type LPDDR4X LPDDR4
Memory Frequency 1866 MHz 1333 MHz
Channels 2 2
Storage
Storage Capacity- 32 GB
- 64 GB
- 128 GB		- 32 GB
- 64 GB
Storage TypeeMMC 5.1eMMC 5.1
Memory CardMicroSDMicroSD

Software

OS Android 10 (Upgradeable to Android 12) Android 7.1.1 (Upgradeable to Android 9)
OS Size 13 GB n/a
UI Skin MIUI 13 One UI 2.0

Battery

Volume 5020 mAh 3000 mAh
Max Charging Power 18 W 18 W
Battery Type Li-Po Li-ion
Removable No No
Wireless Charging No No
Reverse Charging No No
Fast Charging Yes (50% in 80 min) Yes Samsung Adaptive Fast Charge (50% in 30 min)
Full Charge Time 3:05 h 1:35 h
Battery Life Test
Battery Life
Xiaomi Redmi 9
22:51
Samsung Galaxy A8 (2018)
17:10
Web Browsing08:45 h06:38 h
Video Playback13:56 h11:19 h
Games05:30 h04:20 h
Standby Mode113 h80 h

Main camera

Matrix 13 MP 16 MP
Photo resolution 4128x3096 pixels 4920x3264 pixels
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 120 fps (720p) No
Wide-angle lens 118 ° n/a
Lenses count Standard: 13 MP
Ultra-wide: 8 MP
Macro: 5 MP
Depth: 2 MP		 Standard: 16 MP
Features - Bokeh effect
- Pro mode
Main lens
Matrix13 MP16 MP
Aperturef/2.2f/1.7
Focal length28 mm26 mm
SensorOmnivision OV13B10Samsung S5K2P6SX
Sensor size1/3.11/2.8
Pixel size1.12 μm1.12 μm
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalDigital
Ultra-wide lens
Matrix8 MPn/a
Aperturef/2.2n/a
Focal length13 mmn/a
SensorOmniVision OV8856n/a
Sensor size1/4.0n/a
Pixel size1.12 μmn/a
StabilizationDigitaln/a
Main camera DxOMark results
Photo quality
Xiaomi Redmi 9
n/a
Samsung Galaxy A8 (2018)
82
Video quality
Xiaomi Redmi 9
n/a
Samsung Galaxy A8 (2018)
74
Overall camera score
Xiaomi Redmi 9
n/a
Samsung Galaxy A8 (2018)
79

Front camera

Matrix 8 MP 16 MP
Photo resolution 3264x2448 pixels 4608x3456 pixels
Aperture f/2.0 f/1.9
Focal length 27 mm 27 mm
Sensor CMOS Samsung S5K3P8SP
Sensor size 1/4.0 1/3.1
Pixel size n/a 1 μm
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 - 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
NFC* Yes Yes
Infrared Port Yes No
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM B2/3/5/8GSM 850, GSM 900, GSM 1800, GSM 1900
3G BandsHSDPA B1/2/4/5/8HSDPA 850, HSDPA 900, HSDPA 1900, HSDPA 2100
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B20/B28)LTE (B800/B850/B900/B1700/B1800/B1900/B2100/B2300/B2500)
LTE category711
5G SupportNoNo

Sound

Speakers Mono Mono
3.5 mm Jack Yes Yes
FM Radio Yes Yes
Dolby Atmos No Yes
Speaker Test
Max Volume
Xiaomi Redmi 9
83.7 dB
Samsung Galaxy A8 (2018)
85 dB

Other

Class Budget Mid-range
Announced June, 2020 yr December, 2017 yr
Release Date July, 2020 yr January, 2018 yr
Launch Price ($) 130 480
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 10 W n/a
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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