Home Phone comparison Samsung Galaxy A51 and Apple iPhone X - Which is better?

Samsung Galaxy A51 vs Apple iPhone X

41 out 100
Samsung Galaxy A51
VS
49 out 100
Apple iPhone X
Samsung Galaxy A51
Apple iPhone X

Compared 2 smartphones : Samsung Galaxy A51 Manufactured in December, 2019, with display 6.5 with chipsetSamsung Exynos 9 Octa 9611, vs Apple iPhone X, Manufactured in November, 2017 with chipsetApple A11 Bionic. 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 A51
  • Larger display: 6.5in
  • Lighter design: 172g vs 174g
  • Higher battery capacity: 4000mAh vs 2716mAh
  • Fingerprint scanner
Reasons to choose Apple iPhone X
  • Higher pixel density: 458ppi

Versions

Available versions and configurations
Memory Options - 4/64 GB
- 4/128 GB
- 6/128 GB
- 8/128 GB
- 8/256 GB		 - 3/64 GB
- 3/256 GB

Review

Key Specs Samsung Galaxy A51 and Apple iPhone X
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 A51
vs
Apple iPhone X

Display

Display quality comparison
Type Super AMOLED OLED
Size 6.5 in 5.8 in
Resolution 1080x2400 pixels 1125x2436 pixels
Aspect ratio 20:9 19.5:9
Pixel density 405 ppi 458 ppi
Refresh rate 60 Hz 60 Hz
Adaptive refresh rate No No
Max brightness 400 nits 625 nits
HDR support No Yes Dolby Vision
Screen-to-body ratio 87.5 % 81.1 %
Features Always-On Display DCI-P3
Display test
Peak brightness (auto)
Samsung Galaxy A51
631 nits
Apple iPhone X
606 nits
sRGB gamut98.8 %99.3 %
PWM (Flicker)242 Hz240 Hz
Response time25 ms2.2 ms
Contrast∞ Infinite∞ Infinite
Sources: NotebookCheck [Samsung Galaxy A51], [Apple iPhone X]

Design & Build

Design and ergonomics comparison
Height 158.5 mm (6.24 in) 143.6 mm (5.65 in)
Width 73.6 mm (2.9 in) 70.9 mm (2.79 in)
Thickness 7.9 mm (0.31 in) 7.7 mm (0.3 in)
Weight 172 g (6.07 oz) 174 g (6.14 oz)
Water resistance No IP67
Back panel Plastic Glass
Frame Plastic Metal
Colors - White
- Black		 - Silver
- Gray
Fingerprint sensor Yes In-Display No
Screen-to-body ratio
Samsung Galaxy A51
87.5 %
Apple iPhone X
81.1 %

Performance

Testing Samsung Galaxy A51 and Apple iPhone X In benchmarks
Processor
Chipset Samsung Exynos 9 Octa 9611 Apple A11 Bionic
Max Frequency 2300 MHz 2390 MHz
CPU Cores 8 (4 + 4) 6 (2 + 4)
Architecture - 4/1.7 (Cortex-A53)
- 4/2.3 (Cortex-A73)		 - 4/1.42 (Mistral)
- 2/2.39 (Monsoon)
Process Samsung TSMC
Transistor Size 10 nm 10 nm
Neural Processor Yes Apple Neural Engine
Graphics Mali-G72 MP3 Apple A11 GPU
GPU Cores 54 192
GPU Frequency 850 MHz 1066 MHz
FLOPS 113.8 GFLOPS 409.3 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Samsung Galaxy A51
512
Apple iPhone X
1089
Geekbench 6 (Multi-Core)
Samsung Galaxy A51
1556
Apple iPhone X
2918
Geekbench 6 (Single-Core)5121089
Geekbench 6 (Multi-Core)15562918
AnTuTu 10
AnTuTu 10
Samsung Galaxy A51
268760
Apple iPhone X
507548
CPU83857192337
GPU45166122353
Memory63828101238
UX7590991620
NanoReview Score268760507548
3DMark Wild Life
3DMark Wild Life
Samsung Galaxy A51
812
Apple iPhone X
3522
Max Surface Temp.42.2 °C45.7 °C
Stability95 %63 %
Graphics Test4 fps21 fps
Graphics Score8123522
Sources: 3DMark [Samsung Galaxy A51], [Apple iPhone X]

Memory

RAM
RAM Size - 4 GB
- 6 GB		 3 GB
Memory Type LPDDR4X LPDDR4
Memory Frequency 1866 MHz n/a
Channels 2 2
Storage
Storage Capacity- 64 GB
- 128 GB		- 64 GB
- 256 GB
Storage TypeUFS 2.0NVMe
Memory CardMicroSDNo

Software

OS Android 10 (Upgradeable to Android 13) iOS 11.1 (Upgradeable to iOS 16.5)
OS Size 23 GB 5.3 GB
UI Skin One UI 5.1 n/a

Battery

Volume 4000 mAh 2716 mAh
Max Charging Power 15 W 18 W
Battery Type Li-Po Li-ion
Removable No No
Wireless Charging No Yes Qi (7.5 W)
Reverse Charging No No
Fast Charging Yes (40% in 35 min) Yes (50% in 30 min)
Full Charge Time 1:50 h 2:00 h
Battery Life Test
Battery Life
Samsung Galaxy A51
17:53
Apple iPhone X
16:26
Web Browsing07:15 h05:31 h
Video Playback11:25 h09:07 h
Games04:49 h03:35 h
Standby Mode81 h93 h

Main camera

Matrix 48 MP 12 MP
Photo resolution 8000x6000 pixels 4032x3024 pixels
Zoom Digital Optical, 2x
Flash LED Quad LED
Stabilization Digital Optical
8K Recording No No
4K Recording Yes (Up to 30 fps) Yes (Up to 60 fps)
1080p Recording Yes (Up to 30 fps) Yes (Up to 240 fps)
Slow Motion 960 fps (720p) 240 fps (1080p)
Wide-angle lens 120 ° n/a
Lenses count Standard: 48 MP
Ultra-wide: 12 MP
Macro: 5 MP
Depth: 5 MP		 Standard: 12 MP
Telephoto: 12 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix48 MP12 MP
Aperturef/2.0f/1.8
Focal length26 mm28 mm
SensorSony IMX582Apple iSight Duo Camera
Sensor size1/21/3
Pixel size0.8 μm1.22 μm
AutofocusPhase autofocusPhase autofocus (Dual Pixel)
StabilizationDigitalOptical
Telephoto
Matrixn/a12 MP
Aperturen/af/2.4
Focal lengthn/a52 mm
Sensor sizen/a1/3.4
Pixel sizen/a1 μm
Stabilizationn/aOptical
Ultra-wide lens
Matrix12 MPn/a
Aperturef/2.2n/a
Focal length13 mmn/a
Pixel size1.12 μmn/a
StabilizationDigitaln/a
Main camera DxOMark results
Photo quality
Samsung Galaxy A51
n/a
Apple iPhone X
101
Video quality
Samsung Galaxy A51
n/a
Apple iPhone X
89
Overall camera score
Samsung Galaxy A51
n/a
Apple iPhone X
97
Sources: DxOMark [Apple iPhone X]

Front camera

Matrix 32 MP 7 MP
Photo resolution 6560x4928 pixels 3472x2063 pixels
Aperture f/2.2 f/2.2
Focal length 26 mm 32 mm
Sensor Samsung S5KGD1 BSI CMOS
Sensor size 1/2.8 n/a
Pixel size 0.8 μm n/a
Autofocus No Phase autofocus
Stabilization Digital Digital
Video resolution 2160p (4K) at 30 fps 1080p (Full HD) at 30 fps
TOF 3D sensor No No
Selfie camera DxOMark results
Photo quality
Samsung Galaxy A51
n/a
Apple iPhone X
88
Video quality
Samsung Galaxy A51
n/a
Apple iPhone X
92

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 5
Bluetooth features PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP LE, A2DP
USB type USB Type-C No
USB version 2 2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
GPS - GPS
- GLONASS
- Beidou
- Galileo		 - GPS
- GLONASS
- Beidou
NFC* Yes Yes
Infrared Port No No
Connectivity
SIM Count*21
SIM TypeNanoNano
SIM ModeDual SIM Standbyn/a
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM 850 / 900 / 1800 / 2100 / 2600GSM 850 / 900 / 1800 / 1900
3G BandsUMTS 850 / 900 / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
LTE Bands*LTE (B850/B900/B1800/B2100/B2600)LTE (B1/B2/B3/B4(1700/B5/B7/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/B29/B30/B34/B38/B39/B40/B41/B66(1700/B2100))
LTE category1216
5G SupportNoNo

Sound

Speakers Mono Stereo
3.5 mm Jack Yes No
FM Radio Yes No
Dolby Atmos Yes Yes
Speaker Test
Max Volume
Samsung Galaxy A51
81.7 dB
Apple iPhone X
85.3 dB

Other

Class Mid-range Flagship
Announced December, 2019 yr September, 2017 yr
Release Date December, 2019 yr November, 2017 yr
Launch Price ($) 399 999
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Face Sensor
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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