Samsung Galaxy J8 vs Galaxy A20

Here we compared two smartphones: the 6-inch Samsung Galaxy J8 (with Qualcomm Snapdragon 450) that was released on May 24, 2018, against the Samsung Galaxy A20, which is powered by Exynos 7 Octa 7884 and came out 10 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 J8
  • The front-facing camera can record video at 1080p
Reasons to consider the Samsung Galaxy A20
  • Modern USB Type-C port
  • Newer Bluetooth version (v5)
  • Supports 15W fast charging
  • Thinner bezels – 9.42% more screen real estate
  • Has a 0.4 inch larger screen size
  • More recent OS version: Android 11 versus 9
  • Comes with 500 mAh larger battery capacity: 4000 vs 3500 mAh
  • Has an ultra-wide angle camera lens
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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 6 inches 6.4 inches
Resolution 720 x 1480 pixels 720 x 1560 pixels
Aspect ratio 18.5:9 19.5:9
PPI 274 ppi 268 ppi
Refresh rate 60 Hz 60 Hz
HDR support No No
Screen protection Tempered glass Corning Gorilla Glass 3
Screen-to-body ratio 75.58% 85%
Max. Brightness
n/a
404 nits

Design and build

Height 159.2 mm (6.27 inches) 158.4 mm (6.24 inches)
Width 75.7 mm (2.98 inches) 74.7 mm (2.94 inches)
Thickness 8.2 mm (0.32 inches) 7.8 mm (0.31 inches)
Weight 191 gramm (6.74 oz) 169 gramm (5.96 oz)
Waterproof No No
Rear material Plastic Plastic
Frame material Plastic Plastic
Colors Black, Gold, Blue -
Fingerprint scanner Yes, rear Yes, rear
Screen-to-body ratio
75.58%
Galaxy A20 +12%
85%

Performance

Tests of Samsung Galaxy J8 and Samsung Galaxy A20 in the benchmarks
SoC
Chipset Qualcomm Snapdragon 450 Samsung Exynos 7 Octa 7884
Max. clock 1800 MHz 1600 MHz
CPU cores 8 (8) 8 (2 + 6)
Architecture - 8 cores at 1.8 GHz: Cortex-A53 - 6 cores at 1.35 GHz: Cortex-A53
- 2 cores at 1.6 GHz: Cortex-A73
Lithography process 14 nanometers 14 nanometers
Graphics Adreno 506 Mali-G71 MP2
GPU clock 650 MHz 850 MHz
FLOPS ~124 GFLOPS ~64 GFLOPS
Memory
RAM size 3 GB 3 GB
Memory type LPDDR3 LPDDR3
Memory clock 933 MHz 933 MHz
Channels 1 1
Storage
Storage size 32 GB 32 GB
Storage type eMMC 5.1 eMMC 5.1
Memory card MicroSD MicroSD
Memory card max. size Up to 256 GB Up to 512 GB

Benchmarks

Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)
AnTuTu Benchmark 9
n/a
138207
CPU - 48062
GPU - 20723
Memory - 31990
UX - 37339
Total score - 138207
3DMark Wild Life Performance
Stability - 85%
Graphics test - 1 FPS
Graphics score - 324
Sources: 3DMark [3]

Software

Operating system Android 8.0 (Can be upgraded to Android 9.0) Android 9.0 (Can be upgraded to Android 11)
ROM One UI 2.0 One UI 3.1

Battery

Specifications
Capacity 3500 mAh 4000 mAh
Charge power - 15 W
Battery type Li-Ion Li-Po
Replaceable No No
Wireless charging No No
Reverse charging No No
Fast charging No Yes, Samsung Adaptive Fast Charge (25% in 30 min)
Full charging time 2:30 hr 2:00 hr

Camera

Specs and camera test of smartphones
Main camera
Matrix 16 megapixels 13 megapixels
Image resolution 4616 x 3464 4128 x 3096
Zoom Digital Digital
Flash LED LED
Stabilization Digital Digital
8K video recording No No
4K video recording No No
1080p video recording Up to 30FPS Up to 30FPS
Slow motion No No
Angle of widest lens - 123°
Lenses 2 (16 MP + 5 MP) 2 (13 MP + 5 MP)
Wide (main) lens - 16 MP
- Aperture: f/1.7
- Phase autofocus
- 13 MP
- Aperture: f/1.9
- Focal length: 28 mm
- Phase autofocus
Ultra-wide lens - - 5 MP
- Aperture: f/2.2
- Focal length: 12 mm
Depth lens - 5 MP
- Aperture: f/1.9
-
Selfie camera
Megapixels 16 megapixels 8 megapixels
Image resolution 4608 x 3456 3264 x 2448
Aperture f/1.9 f/2.0
Sensor type CMOS CMOS
Video resolution 1080p (Full HD) at 30 FPS 720p at 30 FPS

Connectivity

Wi-Fi standard Wi-Fi 4 (802.11 a/b/g/n) Wi-Fi 4 (802.11 b/g/n)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
Bluetooth version 4.2 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
- OTG
- Charging
- USB-Storage mode
GPS GPS, GLONASS, Beidou GPS, GLONASS, Beidou
NFC* No Yes
Infrared port No No
Network
Number of SIM* 2 2
Type of SIM card Nano Nano
Multi SIM mode Standby Standby
eSIM support* No No
Hybrid slot No No
LTE Cat* 6 4
5G support No No

Sound

Speakers Mono Mono
Headphone audio jack Yes Yes
FM radio Yes Yes
Dolby Atmos Yes Yes

Other

Category Budget Mid-range
Announced May 2018 March 2019
Release date June 2018 March 2019
SAR (head) 0.574 W/kg 0.23 W/kg
SAR (body) 1.176 W/kg 1.38 W/kg
Sensors - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- Hall-effect 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

If the software, battery life, connectivity, and design are more important to you, then choose the Samsung Galaxy A20. But if the performance is more of a priority – go for the Samsung Galaxy J8.

Cast your vote

So, which phone would you choose?
7 (58.3%)
5 (41.7%)
Total votes: 12

User opinions

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