AGM A8 vs Samsung Galaxy S8

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 1700, 1900, 2100

HSDPA 850, 900, 1700(AWS), 1900, 2100
4G network

LTE frequency band 1(2100), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 18(800), 39(1900)

LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 17(700), 20(800), 28(700)
HSDPA speed

-

42.2 Mbps
HSUPA speed

-

5.76 Mbps
LTE speed

LTE, Cat4, 150 Mbps download, 51 Mbps upload

-
LTE-A speed

-

LTE-A, (4CA) Cat16, 1024 Mbps download, 150 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Aluminium alloy, plastic

Corning Gorilla Glass 5 back panel
SIM

Dual SIM (Nano-SIM, dual stand-by)

Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)
Height

159 mm

148.9 mm
Width

83 mm

68.1 mm
Thickness

16 mm

8 mm
Weight

247 g

155 g
Payment

-

Samsung Pay(Visa, Mastercard)
Waterproof

Yes, IP68

IP68 - 1.5 m and 30 minutes
Dust proof

Yes, IP68

IP68
Colors

Black

Arctic Silver, Coral Blue, Maple Gold, Midnight Black, Orchid Gray

Hardware
CPU

-

Octa-core
CPU

Quad-core 1.2 GHz Cortex-A53

Quad-core 2.3 GHz
CPU(second)

quad-core 1.7 GHz
Chipset

Qualcomm Snapdragon 410 MSM8916

Qualcomm MSM8998 Snapdragon 835 - US / Exynos 8895 Octa - EMEA
GPU

Adreno 306

Adreno 540 - US
Memory RAM

3, 4 GB

4 GB
Internal storage

32, 64 GB

64 GB
Memory card

microSD, microSDHC, microSDXC

microSD
Memory card max

32 GB

256 GB
Storage

eMMC

-

Main camera
Main camera

13 MP, f/2.0 , 1.127 µm

12 MP, f/1.7 , 26 mm
Primary camera resolution

4160 x 3120 pixels

-
Primary camera video

720p@30fps

2160p@30fps, 1080p@60fps
Primary camera flash

LED flash

LED flash
Primary camera optical image stabilization

-

optical image stabilization
Primary camera phase detection autofocus

phase detection autofocus

phase detection autofocus
Primary camera video dual video

-

dual-video record
Primary camera video hdr

-

HDR
Camera features

Autofocus, continuous shooting, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode

1.4 µm pixel size, 1/2.5" sensor size, Auto HDR, face/smile detection, geo-tagging, panorama, simultaneous 4K video and 9MP image recording, touch focus

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

-

Yes
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

Type-C 1.0 reversible connector
USB On-The-Go

Yes

-
Bluetooth

v4.0

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

-

Yes
Bluetooth AptX

-

Yes
NFC

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

-

Yes
BDS

-

Yes

Features
Messaging SMS

-

SMS(threaded view)
Messaging MMS

-

MMS
Messaging Email

-

Email
Messaging IM

-

IM
Messaging Push Mail

-

Push Mail
Java

-

No
Sensors

Accelerometer, compass, light, proximity

Iris scanner, SpO2, accelerometer, barometer, compass, fingerprint (rear-mounted), gyro, heart rate, proximity