Home Phone comparison Samsung Galaxy M55 and Xiaomi Mi 9 - Which is better?

Samsung Galaxy M55 vs Xiaomi Mi 9

63 out 100
Samsung Galaxy M55
VS
50 out 100
Xiaomi Mi 9
Samsung Galaxy M55
Xiaomi Mi 9

Compared 2 smartphones : Samsung Galaxy M55 Manufactured in March, 2024, with display 6.7 with chipsetQualcomm Snapdragon 7 Gen 1, vs Xiaomi Mi 9, Manufactured in April, 2019 with chipsetQualcomm Snapdragon 855. 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 M55
  • Larger display: 6.7in
  • Higher refresh rate: 120Hz
  • Higher battery capacity: 5000mAh vs 3300mAh
  • Newer Bluetooth version: 5.2 vs 5
  • Supports Dolby Atmos
Reasons to choose Xiaomi Mi 9
  • Higher pixel density: 403ppi
  • Lighter design: 173g vs 180g
  • Infrared port

Versions

Available versions and configurations
Memory Options - 8/128 GB
- 8/256 GB
- 12/256 GB		 - 6/64 GB
- 6/128 GB
- 8/64 GB
- 8/128 GB
- 8/256 GB

Review

Key Specs Samsung Galaxy M55 and Xiaomi Mi 9
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 M55
vs
Xiaomi Mi 9

Display

Display quality comparison
Type Super AMOLED AMOLED
Size 6.7 in 6.39 in
Resolution 1080x2400 pixels 1080x2340 pixels
Aspect ratio 20:9 19.5:9
Pixel density 393 ppi 403 ppi
Refresh rate 120 Hz 60 Hz
Adaptive refresh rate No No
Max brightness n/a 600 nits
HDR support n/a Yes HDR10
Screen-to-body ratio 86.4 % 85.3 %
Features - DCI-P3
- Always-On Display		 - Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Samsung Galaxy M55
n/a
Xiaomi Mi 9
619 nits
sRGB gamutn/a95.4 %
PWM (Flicker)n/a245 Hz
Response timen/a4.2 ms
Contrastn/a∞ Infinite
Sources: NotebookCheck [Xiaomi Mi 9]

Design & Build

Design and ergonomics comparison
Height 163.9 mm (6.45 in) 157.5 mm (6.2 in)
Width 76.5 mm (3.01 in) 74.6 mm (2.94 in)
Thickness 7.8 mm (0.31 in) 7.6 mm (0.3 in)
Weight 180 g (6.35 oz) 173 g (6.1 oz)
Water resistance n/a No
Back panel n/a Glass
Frame n/a Metal
Colors - Blue
- Green		 - Black
- Blue
- Purple
Fingerprint sensor Yes In-Display Yes In-Display
Screen-to-body ratio
Samsung Galaxy M55
86.4 %
Xiaomi Mi 9
85.3 %

Performance

Testing Samsung Galaxy M55 and Xiaomi Mi 9 In benchmarks
Processor
Chipset Qualcomm Snapdragon 7 Gen 1 Qualcomm Snapdragon 855
Max Frequency 2400 MHz 2840 MHz
CPU Cores 8 (1 + 3 + 4) 8 (1 + 3 + 4)
Architecture - 4/1.8 (Cortex-A510)
- 3/2.36 (Cortex-A710)
- 1/2.4 (Cortex-A710)		 - 4/1.8 (Cortex-A55 (Kryo 485 Silver))
- 3/2.42 (Cortex-A76 (Kryo 485 Gold))
- 1/2.84 (Cortex-A76 (Kryo 485 Gold))
Process Samsung TSMC
Transistor Size 4 nm 7 nm
Neural Processor Hexagon Hexagon 690
Graphics Adreno 644 Adreno 640
GPU Cores 768 768
GPU Frequency 443 MHz 585 MHz
FLOPS 1013.8 GFLOPS 898.5 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Samsung Galaxy M55
960
Xiaomi Mi 9
898
Geekbench 6 (Multi-Core)
Samsung Galaxy M55
2754
Xiaomi Mi 9
2206
Geekbench 6 (Single-Core)960898
Geekbench 6 (Multi-Core)27542206
AnTuTu 10
AnTuTu 10
Samsung Galaxy M55
664504
Xiaomi Mi 9
651041
CPU236956209300
GPU169798191747
Memory111012113809
UX146738136185
NanoReview Score664504651041
3DMark Wild Life
3DMark Wild Life
Samsung Galaxy M55
n/a
Xiaomi Mi 9
3100
Max Surface Temp.n/a35.6 °C
Stabilityn/a91 %
Graphics Testn/a18 fps
Graphics Scoren/a3100
Sources: 3DMark [Xiaomi Mi 9]
PCMark 3.0
PCMark 3.0
Samsung Galaxy M55
n/a
Xiaomi Mi 9
10649
Writing scoren/a14618
Web scoren/a7084
Video editingn/a6715
Data manipulationn/a7931
NanoReview Scoren/a10649

Memory

RAM
RAM Size 8 GB 6 GB
Memory Type LPDDR5 LPDDR4X
Memory Frequency n/a 2133 MHz
Channels 4 2
Storage
Storage Capacity- 128 GB
- 256 GB		128 GB
Storage TypeUFS 3.1UFS 2.1
Memory CardMicroSDNo

Software

OS Android 14 Android 9.0 (Upgradeable to Android 11)
OS Size n/a 13.5 GB
UI Skin One UI 6.1 MIUI 12.5

Battery

Volume 5000 mAh 3300 mAh
Max Charging Power 45 W 27 W
Battery Type Li-ion Li-Po
Removable No No
Wireless Charging No Yes (20 W)
Reverse Charging No No
Fast Charging Yes Yes Quick Charge 4 (50% in 30 min)
Full Charge Time n/a 1:30 h
Battery Life Test
Battery Life
Samsung Galaxy M55
n/a
Xiaomi Mi 9
17:14
Web Browsingn/a06:08 h
Video Playbackn/a11:37 h
Gamesn/a04:07 h
Standby Moden/a83 h

Main camera

Matrix 50 MP 48 MP
Photo resolution 8160x6120 pixels 8000x6000 pixels
Zoom Digital Optical, 2x
Flash LED Dual LED
Stabilization Optical Digital
8K Recording No No
4K Recording Yes (Up to 30 fps) Yes (Up to 60 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 240 fps (720p) 960 fps (1080p)
Wide-angle lens 123 ° 117 °
Lenses count Standard: 50 MP
Ultra-wide: 8 MP
Macro: 2 MP		 Standard: 48 MP
Telephoto: 12 MP
Ultra-wide: 16 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix50 MP48 MP
Aperturef/1.8f/1.8
Focal lengthn/a27 mm
Sensorn/aSony IMX586
Sensor size1/1.561/2
Pixel size1 μm0.8 μm
AutofocusPhase autofocusLaser autofocus
StabilizationOpticalDigital
Telephoto
Matrixn/a12 MP
Aperturen/af/2.2
Focal lengthn/a54 mm
Sensorn/aSamsung S5K3M5
Sensor sizen/a1/3.6
Pixel sizen/a1 μm
Stabilizationn/aDigital
Ultra-wide lens
Matrix8 MP16 MP
Aperturef/2.2f/2.2
Focal lengthn/a13 mm
Sensorn/aSony IMX481
Sensor sizen/a1/3.0
Pixel sizen/a1 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Samsung Galaxy M55
n/a
Xiaomi Mi 9
112
Video quality
Samsung Galaxy M55
n/a
Xiaomi Mi 9
99
Overall camera score
Samsung Galaxy M55
n/a
Xiaomi Mi 9
107
Sources: DxOMark [Xiaomi Mi 9]

Front camera

Matrix 50 MP 20 MP
Photo resolution 8160x6120 pixels 5184x3880 pixels
Aperture f/2.4 f/2.0
Focal length n/a 18 mm
Sensor n/a CMOS
Sensor size n/a 1/3
Pixel size n/a 0.9 μm
Autofocus No No
Stabilization Digital Digital
Video resolution 2160p (4K) at 30 fps 1080p (Full HD) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 6 (802.11 a/b/g/n/ac/ax) Wi-Fi 5 (802.11 a/b/g/n/ac)
Wi-Fi features - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5.2 5
Bluetooth features LE LE, A2DP
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- USB-Host mode
- OTG
GPS - GPS
- GLONASS
- Galileo
- QZSS		 - 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 SlotYesNo
2G Bandsn/aGSM 850, GSM 900, GSM 1800, GSM 1900
3G Bandsn/aHSDPA 850, HSDPA 900, HSDPA 1900, HSDPA 2100
LTE Bands*n/aLTE (B800/B900/B1800/B2100/B2300/B2500/B2600)
LTE category1820
5G SupportYesNo

Sound

Speakers Stereo Mono
3.5 mm Jack No No
FM Radio No No
Dolby Atmos Yes No
Speaker Test
Max Volume
Samsung Galaxy M55
n/a
Xiaomi Mi 9
87.1 dB

Other

Class Mid-range Flagship
Announced March, 2024 yr February, 2019 yr
Release Date March, 2024 yr April, 2019 yr
Launch Price ($) 325 460
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Hall Sensor
- Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included No n/a
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Samsung Galaxy M55 the clear winner in this comparison.

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