Samsung Galaxy J5 vs Galaxy A51

Here we compared two smartphones: the 5-inch Samsung Galaxy J5 (with Qualcomm Snapdragon 410) that was released on June 20, 2015, against the Samsung Galaxy A51, which is powered by Exynos 9 Octa 9611 and came out 55 months after. On this page, you will find tests, full specs, strengths, and weaknesses of each of the gadgets.

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Samsung Galaxy J5
  • Weighs 26 grams less
Reasons to consider the Samsung Galaxy A51
  • Has a 1.5 inches larger screen size
  • Thinner bezels – 19.63% more screen real estate
  • Comes with 1400 mAh larger battery capacity: 4000 vs 2600 mAh
  • Delivers 80% higher peak brightness (637 against 353 nits)
  • Modern USB Type-C port
  • 38% higher pixel density (405 vs 294 PPI)
  • Compatible with Wi-Fi 5 wireless networks
  • Newer Bluetooth version (v5)
  • Supports 15W fast charging
  • Slow-motion recording at 960FPS
  • More recent OS version: Android 13 versus 5.1
  • Fingerprint scanner
We may receive a commission from Amazon for purchases made using the links below, but this has no bearing on our assessment methodology.

Review

Display
Screen quality, color accuracy, brightness
Performance
CPU/GPU performance in apps and games
Battery
Battery life, charging type and speed
Camera
Photo and video recording quality
Connectivity
Networks, ports, data transmission
NanoReview score
Final comparison evaluation

Value for money

You can enter your local price of these phones (in USD or any other currency) and click on the "Calculate" button to see which one has a better value for money.
Price

Tests and specifications

Comparison table of technical specifications and tests
Phone:
vs

Display

Type Super AMOLED Super AMOLED
Size 5 inches 6.5 inches
Resolution 720 x 1280 pixels 1080 x 2400 pixels
Aspect ratio 16:9 20:9
PPI 294 ppi 405 ppi
Refresh rate 60 Hz 60 Hz
Max rated brightness 368 nits 400 nits
HDR support No No
Screen protection Tempered glass Corning Gorilla Glass 3
Screen-to-body ratio 67.77% 87.4%
Display features - - Always-On Display
Display tests
RGB color space - 98.8%
PWM Not detected 242 Hz
Response time - 25 ms
Contrast ∞ Infinity ∞ Infinity
Peak brightness test (auto)
353 nits
Galaxy A51 +80%
637 nits
Sources: NotebookCheck [3], [4]

Design and build

Height 142.1 mm (5.59 inches) 158.5 mm (6.24 inches)
Width 71.8 mm (2.83 inches) 73.6 mm (2.9 inches)
Thickness 7.9 mm (0.31 inches) 7.9 mm (0.31 inches)
Weight 146 g (5.15 oz) 172 g (6.07 oz)
Waterproof No No
Rear material Plastic Plastic
Frame material Plastic Plastic
Colors White, Black, Gold White, Black
Fingerprint scanner No Yes, in-display
Screen-to-body ratio
67.77%
Galaxy A51 +29%
87.4%

Performance

Tests of Samsung Galaxy J5 and Samsung Galaxy A51 in the benchmarks
SoC
Chipset Qualcomm Snapdragon 410 Samsung Exynos 9 Octa 9611
Max. clock 1200 MHz 2300 MHz
CPU cores - 8 (4 + 4)
Architecture - - 4 cores at 1.7 GHz: Cortex-A53
- 4 cores at 2.3 GHz: Cortex-A73
Lithography process - 10 nanometers
Graphics - Mali-G72 MP3
GPU clock 400 MHz 850 MHz
FLOPS - ~259 GFLOPS

Benchmarks

Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)
AnTuTu Benchmark 9
n/a
217818
CPU - 49711
GPU - 53719
Memory - 43824
UX - 70475
Total score - 217818
3DMark Wild Life Performance
Stability - 95%
Graphics test - 4 FPS
Graphics score - 812
Sources: 3DMark [3]

Memory

RAM
RAM size 1.5 GB 4, 6 GB
Memory type LPDDR3 LPDDR4X
Memory clock 533 MHz 1866 MHz
Channels 1 2
Storage
Storage size 16 GB 64, 128 GB
Storage type eMMC 5.0 UFS 2.0
Memory card MicroSD MicroSD
Memory card max. size Up to 128 GB Up to 512 GB

Software

Operating system Android 5.1 Android 10 (Can be upgraded to Android 13)
ROM TouchWiz One UI 5.0
OS size 3.8 GB 23 GB

Battery

Specifications
Capacity 2600 mAh 4000 mAh
Charge power - 15 W
Battery type Li-Ion Li-Po
Replaceable Yes No
Wireless charging No No
Reverse charging No No
Fast charging No Yes (40% in 35 min)
Full charging time 1:50 hr 1:50 hr
Battery life tests
Web browsing - 09:34 hr
Watching video - 11:29 hr
Gaming - 05:12 hr
Standby - 83 hr
General battery life
n/a
26:33 hr

Camera

Specs and camera test of smartphones
Main camera
Matrix 13 megapixels 48 megapixels
Image resolution 4128 x 3096 8000 x 6000
Zoom Digital Digital
Flash LED LED
Stabilization Digital Digital
8K video recording No No
4K video recording No Up to 30FPS
1080p video recording Up to 30FPS Up to 30FPS
Slow motion No 960 FPS (720p)
Angle of widest lens - 120°
Lenses 1 (13 MP) 4 (48 MP + 12 MP + 5 MP + 5 MP)
Wide (main) lens - 13 MP
- Aperture: f/1.9
- Focal length: 28 mm
- Phase autofocus
- 48 MP
- Aperture: f/2.0
- Focal length: 26 mm
- Pixel size: 0.8 micron
- Sensor: 1/2", Sony IMX582 (Exmor-RS CMOS)
- Phase autofocus
Ultra-wide lens - - 12 MP
- Aperture: f/2.2
- Focal length: 13 mm
- Pixel size: 1.12 micron
Macro lens - - 5 MP
- Aperture: f/2.4
- Focal length: 40 mm
- Pixel size: 1.12 micron
Depth lens - - 5 MP
- Aperture: f/2.2
- Pixel size: 1.12 micron
- Sensor: 1/5.0" (CMOS)
Camera features - - Bokeh mode
- Pro mode
Selfie camera
Megapixels 5 megapixels 32 megapixels
Image resolution 2560 x 1920 6560 x 4928
Aperture f/2.2 f/2.2
Focal length 23 mm 26 mm
Pixel size - 0.8 microns
Sensor type CMOS ISOCELL CMOS
Sensor size - 1/2.8"
Video resolution 1080p (Full HD) at 30 FPS 2160p (4K) at 30 FPS

Connectivity

Wi-Fi standard Wi-Fi 4 (802.11 b/g/n) Wi-Fi 5 (802.11 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 4.1 5
Bluetooth features PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP
USB type Micro USB USB Type-C
USB version 2 2
USB features - Charging
- USB-Storage mode
- Charging
- USB-Storage mode
- OTG
GPS GPS, GLONASS, Beidou GPS, GLONASS, Beidou, Galileo
NFC* No Yes
Infrared port No No
Network
Number of SIM* 2 2
Type of SIM card Micro Nano
Multi SIM mode Standby Standby
eSIM support* No No
Hybrid slot No No
LTE Cat* 4 12
5G support No No

Sound

Speakers Mono Mono
Headphone audio jack Yes Yes
FM radio Yes Yes
Dolby Atmos No Yes
Speakers test
Max. loudness
n/a
81.7 dB

Other

Category Budget Mid-range
Announced June 2015 December 2019
Release date June 2015 December 2019
SAR (head) 0.612 W/kg 0.596 W/kg
SAR (body) 0.482 W/kg 1.45 W/kg
Sensors - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

After analyzing all the data, we think that the Samsung Galaxy A51 is definitely a better buy.

Cast your vote

So, which phone would you choose?
2 (25%)
6 (75%)
Total votes: 8

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