Samsung Galaxy M30s vs Galaxy J8

Here we compared two smartphones: the 6.4-inch Samsung Galaxy M30s (with Exynos 7 Octa 9611) that was released on September 18, 2019, against the Samsung Galaxy J8, which is powered by Qualcomm Snapdragon 450 and came out 16 months before. 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 M30s
  • Comes with 2500 mAh larger battery capacity: 6000 vs 3500 mAh
  • 47% higher pixel density (403 vs 274 PPI)
  • Modern USB Type-C port
  • Compatible with Wi-Fi 5 wireless networks
  • Newer Bluetooth version (v5)
  • Supports 15W fast charging
  • Has a 0.4 inch larger screen size
  • Slow-motion recording at 480FPS
  • Uses a faster type of memory: LPDDR4X 1866 MHz
  • More recent OS version: Android 11 versus 9
  • Ability to record video in 4K resolution
  • More energy-efficient CPU – Exynos 7 Octa 9611
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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

Display

Type Super AMOLED Super AMOLED
Size 6.4 inches 6 inches
Resolution 1080 x 2340 pixels 720 x 1480 pixels
Aspect ratio 19.5:9 18.5:9
PPI 403 ppi 274 ppi
Refresh rate 60 Hz 60 Hz
HDR support No No
Screen protection Tempered glass Tempered glass
Screen-to-body ratio 84.2% 75.58%
Display tests
RGB color space 98.4% -
PWM 118 Hz -
Response time 6 ms -
Contrast ∞ Infinity -
Max. Brightness
645 nits
n/a
Sources: NotebookCheck [3]

Design and build

Height 159 mm (6.26 inches) 159.2 mm (6.27 inches)
Width 75.1 mm (2.96 inches) 75.7 mm (2.98 inches)
Thickness 8.9 mm (0.35 inches) 8.2 mm (0.32 inches)
Weight 188 gramm (6.63 oz) 191 gramm (6.74 oz)
Waterproof No No
Rear material Plastic Plastic
Frame material Plastic Plastic
Colors White, Black, Blue Black, Gold, Blue
Fingerprint scanner Yes, rear Yes, rear
Screen-to-body ratio
84.2%
75.58%

Performance

Tests of Samsung Galaxy M30s and Samsung Galaxy J8 in the benchmarks
SoC
Chipset Samsung Exynos 7 Octa 9611 Qualcomm Snapdragon 450
Max. clock 2300 MHz 1800 MHz
CPU cores 8 (4 + 4) 8 (8)
Architecture - 4 cores at 1.7 GHz: Cortex-A53
- 4 cores at 2.3 GHz: Cortex-A73
- 8 cores at 1.8 GHz: Cortex-A53
Lithography process 10 nanometers 14 nanometers
Graphics Mali-G72 MP3 Adreno 506
GPU clock 850 MHz 650 MHz
FLOPS ~259 GFLOPS ~124 GFLOPS
Memory
RAM size 4 GB 3 GB
Memory type LPDDR4X LPDDR3
Memory clock 1866 MHz 933 MHz
Channels 2 1
Storage
Storage size 64 GB 32 GB
Storage type UFS 2.1 eMMC 5.1
Memory card MicroSD MicroSD
Memory card max. size Up to 512 GB Up to 256 GB

Benchmarks

Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)
AnTuTu Benchmark 9
207337
n/a
CPU 61273 -
GPU 38834 -
Memory 48092 -
UX 57815 -
Total score 207337 -
3DMark Wild Life Performance
Stability 73% -
Graphics test 4 FPS -
Graphics score 814 -
Sources: 3DMark [3]

Software

Operating system Android 9.0 (Can be upgraded to Android 11) Android 8.0 (Can be upgraded to Android 9.0)
ROM One UI 3.0 One UI 2.0
OS size 13.5 GB -

Battery

Specifications
Capacity 6000 mAh 3500 mAh
Charge power 15 W -
Battery type Li-Ion Li-Ion
Replaceable No No
Wireless charging No No
Reverse charging No No
Fast charging Yes, Samsung Adaptive Fast Charge (45% in 60 min) No
Full charging time 2:25 hr 2:30 hr

Battery life tests

Web browsing (Wi-Fi)
16:13 hr
n/a
Watching videos (Player)
21:32 hr
n/a
Talk (3G)
35:29 hr
n/a

Camera

Specs and camera test of smartphones
Main camera
Matrix 48 megapixels 16 megapixels
Image resolution 8000 x 6000 4616 x 3464
Zoom Digital Digital
Flash LED LED
Stabilization Digital Digital
8K video recording No No
4K video recording Up to 30FPS No
1080p video recording Up to 60FPS Up to 30FPS
Slow motion 480 FPS (720p) No
Angle of widest lens 123° -
Lenses 3 (48 MP + 8 MP + 5 MP) 2 (16 MP + 5 MP)
Wide (main) lens - 48 MP
- Aperture: f/2.0
- Focal length: 26 mm
- Pixel size: 0.8 micron
- Sensor: 1/2.0", Samsung S5KGM2 (ISOCELL CMOS)
- Phase autofocus
- 16 MP
- Aperture: f/1.7
- Phase autofocus
Ultra-wide lens - 8 MP
- Aperture: f/2.2
- Focal length: 12 mm
- Pixel size: 1.12 micron
- Sensor: 1/4.0" (CMOS)
-
Depth lens - 5 MP
- Aperture: f/2.2
- Pixel size: 1.12 micron
- Sensor: 1/5.0" (CMOS)
- 5 MP
- Aperture: f/1.9
Camera features - Bokeh mode
- Pro mode
-
Selfie camera
Megapixels 16 megapixels 16 megapixels
Image resolution 4608 x 3456 4608 x 3456
Aperture f/2.0 f/1.9
Focal length 26 mm -
Pixel size 1 microns -
Sensor type ISOCELL CMOS CMOS
Sensor size 1/3.1" -
Video resolution 1080p (Full HD) at 30 FPS 1080p (Full HD) at 30 FPS

Connectivity

Wi-Fi standard Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 4 (802.11 a/b/g/n)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
Bluetooth version 5 4.2
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 USB Type-C Micro USB
USB version 2 2
USB features - Charging
- USB-Storage mode
- OTG
- Charging
- USB-Storage mode
- OTG
GPS GPS, GLONASS, Beidou GPS, GLONASS, Beidou
NFC* Yes No
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* 12 6
5G support No No

Sound

Speakers Mono Mono
Headphone audio jack Yes Yes
FM radio Yes Yes
Dolby Atmos Yes Yes
Speakers test
Max. loudness
82.8 dB
n/a

Other

Category Mid-range Budget
Announced September 2019 May 2018
Release date October 2019 June 2018
SAR (head) 0.47 W/kg 0.574 W/kg
SAR (body) - 1.176 W/kg
Sensors - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- 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 M30s is definitely a better buy.

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