Samsung Galaxy A8 (2018)
VS
Samsung Galaxy S7 edge
VS
Screen

We are looking at the smartphone screen for a long time. Therefore, it is quite important to choose smartphone with rich and optimally saturated color gamut. Also, the most mature display technology used in smartphones must be safe (e.g., IPS or OLED).  Which is better between Samsung Galaxy A8 (2018) vs Samsung Galaxy S7 edge.

Super AMOLED
Technology
Super AMOLED
capacitive touchscreen
Touchscreen
capacitive touchscreen
16M
Display colors
16M
5.6" inc
Screen size
5.5" inc
79.6 cm2
Screen area
83.4 cm2
18.5:9 (height:width)
Screen format
16:9 (height:width)
75.6%
Screen to body ratio
76.1%
1080 x 2220 px
Screen resolution
1440 x 2560 px
441 PPI
PPI /points per inch/
534 PPI
Corning Gorilla Glass (unspecified version)
Screen protection
Corning Gorilla Glass 4
Always-on display
Other
Always-on display
Camera and Video

The smartphone camera plays significant role - it is one of several factors that determine the quality of a digital photo. When compare the smartphones, it is necessary to account megapixels on sensors of the primary and front facing cameras, and also availability of the flash and video-shooting option. Let's see which is better between Samsung Galaxy A8 (2018) vs  Samsung Galaxy S7 edge.

16 MP, Single
Rear camera, main
12 MP, Single
16 MP, f/1.7, 26mm (wide), 1/2.8”, 1.12µm, PDAF
Camera specs
12 MP, f/1.7, 26mm (wide), 1/2.55'', 1.4µm, OIS, dual pixel PDAF
LED flash, panorama, HDR
Functions
LED flash, auto-HDR, panorama
16 MP, Dual
Front camera, selfie
5 MP, Single
16 MP, f/1.9, 27mm (wide), 1/3.1'', 1.0µm 8 MP, f/1.9, 24mm (wide), 1/4'', 1.12µm
Specifications
5 MP, f/1.7, 22mm (wide), 1/4.1'', 1.34µm
no data
DxOMark Main Score
89
no data
DxOMark Photo
91
no data
DxOMark Video
86
Performance

Ok, who win? Samsung Galaxy A8 (2018) vs Samsung Galaxy S7 edge. The smartphone must work fast. The higher the clock speed and the more RAM your smartphone has, the faster and better it can be. Also, you have to pay attention to the benchmark results. 

Android 7.1.1 (Nougat), upgradable to Android 8.0 (Oreo)
Operating system OS
Android 6.0 (Marshmallow), upgradable to Android 8.0 (Oreo); TouchWiz UI
Exynos 7885 Octa (14 nm)
Chipset
Qualcomm MSM8996 Snapdragon 820 (14 nm) - G9350 -Exynos 8890 Octa (14 nm) - G935FD, G935F, G935W8
Octa-core (2x2.2 GHz Cortex-A73 & 6x1.6 GHz Cortex-A53)
Processor CPU
Quad-core (2x2.15 GHz Kryo & 2x1.6 GHz Kryo) - G9350 -Octa-core (4x2.3 GHz Mongoose & 4x1.6 GHz Cortex-A53) - G935FD, G935F, G935W8
Mali-G71
Graphics processor GPU
Adreno 530 - G9350 -Mali-T880 MP12 - G935FD, G935F, G935W8
microSD, up to 256 GB (dedicated slot)
External memory
microSD, up to 512 GB (uses SIM 2 slot) - dual SIM model only
32/64 GB, 4 GB RAM
Internal memory
32/64/128 GB, 4 GB RAM
116745
Antutu 7 score
158530
1482
GeekBench 4 Single Core
1456
4208
GeekBench 4 Multi-Core
3744
3704
GeekBench 4 RenderScript
4571
142851
Antutu 8 score
184713
309
GeekBench 5 Single Core
252
994
GeekBench 5 Multi-Core
723
no data
GeekBench 4 Battery
2782
General specs

Here is some information we have collected – from date of release and battery capacity to weight and color gamut of the smartphones. It is time to pick the winner. What is the difference between Samsung Galaxy A8 (2018) vs Samsung Galaxy S7 edge.

2017, December
Release date
2016, February
149.2 Х 70.6 Х 8.4 mm
Dimensions (HxWxD)
150.9 Х 72.6 Х 7.7 mm
172 g
Weight
157 g
Black, orchid grey, gold, blue
Colors
Black, White, Gold, Silver, Pink Gold, Black Pearl, Coral Blue
3000 mAh,  Non-removable Li-Ion
Battery
3600 mAh,  Non-removable Li-Ion
270 EUR
Approximate price
400 EUR
Talking time- Up to 24 h (3G) Music play - Up to 66 h
Battery life
Talking time- Up to 27 h (3G) Music play - Up to 74 h
Front/back glass, aluminum frame
Body build
Front/back glass (Gorilla Glass 4), aluminum frame
Communication and Connectivity

As a result of comparison Samsung Galaxy A8 (2018) and Samsung Galaxy S7 edge , you understand what device is better and what is worst. Below are parameters and data sets which were used for analysis and comparison.

Single SIM (Nano-SIM)Dual SIM (Nano-SIM, dual stand-by)
SIM card
Single SIM (Nano-SIM) - G935F, G935W8Hybrid Dual SIM (Nano-SIM, dual stand-by) - G935FD
GSM / HSPA / LTE
Network
GSM / HSPA / LTE
HSPA 42.2/5.76 Mbps, LTE-A (3CA) Cat11 600/75 Mbps
Speed
HSPA 42.2/5.76 Mbps, LTE-A (3CA) Cat9 450/50 Mbps
Yes
GPRS
Yes
Yes
Edge
Yes
Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot
Wi-Fi
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Yes, with A-GPS, GLONASS, BDS
GPS
Yes, with A-GPS, GLONASS, BDS
Yes
NFC
Yes
2.0, Type-C 1.0 reversible connector
USB
microUSB 2.0, USB Host
5.0, A2DP, EDR, LE
Bluetooth
4.2, A2DP, LE, aptX
SAR EU - 0.24 W/kg (head)     1.25 W/kg (body)    
Harmful irradiation
SAR - 1.17 W/kg (head)     1.59 W/kg (body)     SAR EU - 0.26 W/kg (head)     0.51 W/kg (body)    
Music and Audio
FM radio
Radio
No
Yes
Headphone jack
Yes
24-bit/192kHz audio -Active noise cancellation with dedicated mic
Others
24-bit/192kHz audio -Active noise cancellation with dedicated mic
Other features
Sensors - Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass, barometer - Fast battery charging -ANT+ - Samsung Pay -IP68 dust/water proof (up to 1.5m for 30 mins) - Versions: A530F (Europe, Global Single-SIM); A530F/DS (Global Dual-SIM
Sensors - Fingerprint (front-mounted), accelerometer, gyro, proximity, compass, barometer, heart rate, SpO2 - Fast battery charging (Quick Charge 2.0) -Qi/PMA wireless charging (market dependent) -ANT+ -S-Voice natural language commands and dictation -