Samsung Galaxy J7 Duo (SM-J720F/DS 32GB/4GB) vs Samsung Galaxy A8s (SM-G8870 128GB/6GB)

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Side by side comparison between Samsung Galaxy J7 Duo vs Samsung Galaxy A8s phones, differences, pros, cons and full specifications. What's the better?

4/12/2020 2:26 PM, updated: 6/13/2022 6:34 PM

Compare Samsung Galaxy A8s X Samsung Galaxy J7 Duo (SM-J720F/DS 32GB/4GB) 05Points

Specifications Compare Models Pictures

5.5"
AMOLED

720x1280

13
MP

8mp

4GB
RAM

Octa-core

3000
mAh

(Removable)

24Points Samsung Galaxy A8s (SM-G8870 128GB/6GB) Compare Samsung Galaxy J7 Duo X

Specifications Compare Models Pictures

6.4"
PLS

1080x2340

24
MP

24mp

6GB
RAM

Octa-core

3400
mAh

(Non removable)

What's the better phone? Samsung Galaxy A8s (SM-G8870 128GB/6GB)

The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!

5 Advantages Samsung Galaxy J7 Duo (SM-J720F/DS 32GB/4GB)	vs	24 Advantages Samsung Galaxy A8s (SM-G8870 128GB/6GB)
+Until 256GB microSD, microSDXCAdvantage More external storage for files using memory cards	vs	Not supported
+Super AMOLEDAdvantage Super AMOLED display is brighter and more vivid	vs	TFT PLS
+LED flash on both camerasAdvantage The LED flash on both cameras helps in dark places or in low light	vs	LED flash
+Li-Ion: lithium-ion (Removable)Advantage Removable battery can be replaced easily	vs	Li-Ion: lithium-ion (Non removable)
+FMAdvantage The radio lets you listen to your songs and sports in general	vs	Not supported
2.2GHz 64bit Octa-core (14nm)	vs	+2.2GHz 64bit Octa-core27% More powerful processor, you can open your applications faster
4GB LPDDR4	vs	+6GB LPDDR4X50% More RAM memory. Typically more responsive and better for multitasking.
32GB (21GB available)	vs	+128GB (109GB available)4 times More internal storage for applications and files
174 grams (6.09 ounces)	vs	+173 grams (6.06 ounces)1% Lighter
8.2 millimeters (0.32 inches)	vs	+7.4 millimeters (0.29 inches)11% Thinner
Plastic body, glass front	vs	+Aluminum frame, glass front/backAdvantage More resistant material
720x1280 pixels	vs	+1080x2340 pixels174% Higher resolution screen
267 PPI	vs	+403 PPI51% Crisper display of text, images and videos because it has more pixels per inch (ppi)
5.5"	vs	+6.4"16% Larger screen
(dual camera) 13MP + 5MP	vs	+(triple camera) 24MP + 10MP + 5MP118% Higher resolution main camera
Only digital zoom	vs	+Digital and optical zoomAdvantage The zoom allows for better focus and approach to take pictures
HDR photo only main camera	vs	+HDR photo on both camerasAdvantage The HDR technology produced photos with more detail in dark areas
f/1.9 (aperture)	vs	+f/1.7 (aperture)12% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(front) 8MP	vs	+(front) 24MP198% Higher resolution secondary camera to take pictures and selfies
Full HD (1920x1080)	vs	+4K UHD (3840x2160)3 times More image quality for recording videos with the primary camera
(4G LTE) 150 Mbps	vs	+(4G LTE-A) 800 Mbps4 times Faster for surfing the internet and download files
Not supported	vs	+Ambient light sensorAdvantage Sensors help you use the device
Not supported	vs	+CompassAdvantage Sensors help you use the device
Not supported	vs	+GyroscopeAdvantage Sensors help you use the device
3000 mAh	vs	+3400 mAh13% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
Mono sound (not stereo)	vs	+Stereo soundAdvantage Better sound quality for listening to music or clearer hands-free calls
Not supported	vs	+Active noise cancellationAdvantage More noise-canceling microphones allow for better quality in calls and audio for recorded videos
Not supported	vs	+NFCAdvantage NFC allows you to make payments by approach quickly and securely
MicroUSB 2.0	vs	+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.

25 Common items in both devices

eMMC 5.1

16 million

Autofocus / PDAF: phase detection autofocus

EIS: Digital stabilization

(front) Full HD (1920x1080)

Android 10

4G LTE / 4G LTE-A

+18 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differences

📱 Model features
	Galaxy J7 Duo (SM-J720F/DS 32GB/4GB)	Galaxy A8s (SM-G8870 128GB/6GB)
Change model		Choose the model
Model	Galaxy J7 Duo (SM-J720F/DS 32GB/4GB)	Galaxy A8s (SM-G8870 128GB/6GB)
Other model names	Galaxy J7 Duo (32GB + 4GB RAM) Dual-Sim, Samsung J720	Galaxy A8S (128GB+6GB RAM) SM-G8870ZKDCHC
Country or region available	India	China, Hong Kong
Brand	Samsung	Samsung
Release date	4/1/2018	12/1/2018
Depth	8.2 millimeters (0.32 inches)	7.4 millimeters (0.29 inches)
Size (width x height)	77.2 x 153.5 millimeters (3.04 x 6.04 in)	74.9 x 158.4 millimeters (2.95 x 6.24 in)
Weight	174 grams (6.09 ounces)	173 grams (6.06 ounces)
Build, materials	Plastic body, glass front	Aluminum frame, glass front/back
Protection against water and others	Not supported	Not supported
📲 Display
	Galaxy J7 Duo (SM-J720F/DS 32GB/4GB)	Galaxy A8s (SM-G8870 128GB/6GB)
Display type	Super AMOLED	TFT PLS
Screen size	5.5" inches	6.4" inches
Screen-to-body ratio	~70.4% (screen-to-body ratio)	~84.7% (screen-to-body ratio)
Display resolution	720x1280 pixels (16:9)	1080x2340 pixels
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	267 PPI	403 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass	Gorilla Glass 3
Refresh rate	60Hz	feature not registered
Display features	Not supported	feature not registered
🤖 Operating System
	Galaxy J7 Duo (SM-J720F/DS 32GB/4GB)	Galaxy A8s (SM-G8870 128GB/6GB)
System version	Android 8.0 Oreo	Android 9.0 Pie
Firmware update	Android 10	Android 10
User Interface	One UI 2.0	One UI
⚙️ Processor
	Galaxy J7 Duo (SM-J720F/DS 32GB/4GB)	Galaxy A8s (SM-G8870 128GB/6GB)
Chipset	64bit: Samsung Exynos 7885 (14nm)	64bit: Qualcomm Snapdragon 710 SDM710 (10nm)
CPU	Octa-core, 2 processors: 2x 2.2GHz ARM Cortex-A73 (Dual-core) 6x 1.6GHz ARM Cortex-A53 (Hexa-core)	Octa-core, 2 processors: 2x 2.2GHz Kryo 360 Gold (Dual-core) 6x 1.7GHz Kryo 360 Silver (Hexa-core)
GPU graphical controller	ARM Mali-G71 MP2	Qualcomm Adreno 616 500Mhz
Performance (benchmark)	AnTuTu: 98104 (v7)	feature not registered
💽 Memory and storage
	Galaxy J7 Duo (SM-J720F/DS 32GB/4GB)	Galaxy A8s (SM-G8870 128GB/6GB)
RAM memory	4GB LPDDR4	6GB LPDDR4X
Internal storage	32GB (21GB available) eMMC 5.1	128GB (109GB available) eMMC 5.1
External storage	Until 256GB microSD, microSDXC (dedicated slot)	Not supported
📶 Mobile networks
	Galaxy J7 Duo (SM-J720F/DS 32GB/4GB)	Galaxy A8s (SM-G8870 128GB/6GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card (dedicated slot)	Dual-SIM Standby - Call active on one sim card
SIM card	2 slots (Dual-SIM) micro-SIM (3FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	150/50 Mbps	800/150 Mbps
Network technology	2G, 3G, 4G	2G, 3G, 4G
Frequency, bands	Expand band details Collapse details
GSM MHz band	Quad-Band 850/900/1800/1900	Quad-Band 850/900/1800/1900
Primary 2G network	GSM 850/900/1800/1900	CDMA 800, GSM 850/900/1800/1900
Primary 3G network	UMTS 850/900/1900/2100	CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1900/2100
Primary 4G network	LTE Cat4 (1, 3, 5, 7, 8, 20) TD-LTE (38, 40, 41)	LTE Cat15/13 (1, 3, 4, 5, 7, 8, 12, 17) TD-LTE (34, 38, 39, 40, 41)
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE	GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Secondary 3G network	UMTS 850/900/1900/2100	UMTS 850/900/1900/2100
Secondary 4G network	Not supported	Not supported
Secondary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+
📷 Camera
	Galaxy J7 Duo (SM-J720F/DS 32GB/4GB)	Galaxy A8s (SM-G8870 128GB/6GB)
Back camera (main camera)	(dual camera) 13 megapixels 5MP depth f/1.9	(triple camera) 24 megapixels 10MP telephoto f/2.452mm1/3.9"1.0µmAF2x-optical-zoom 5MP depth f/2.2
Main camera resolution	4128x3096 pixels	5632x4224 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	4K UHD (3840x2160) 30 fps
Flash	LED flash on both cameras	LED flash
Focal aperture	f/1.9 (aperture)	f/1.7 (aperture)
Focal length	feature not registered	27mm (lens)
Sensor size	feature not registered	1/2.8" inches
Pixel size	feature not registered	0.9µm pixel
Autofocus	Autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	EIS: Digital stabilization
Zoom	Only digital zoom	Digital and optical zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Not supported	Not supported
HDR	HDR photo only main camera	HDR photo on both cameras
Camera extras	feature not registered	1080p@240fps
📸 Front camera
	Galaxy J7 Duo (SM-J720F/DS 32GB/4GB)	Galaxy A8s (SM-G8870 128GB/6GB)
Front camera (secondary)	8 megapixels	24 megapixels
Front camera resolution	3264x2448 pixels	5632x4224 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	LED	Not supported
Focal aperture	f/1.9 (aperture)	f/2.0 (aperture)
Focal length	feature not registered	26mm (lens)
Sensor size	feature not registered	1/2.8" inches
Pixel size	feature not registered	0.9µm pixel
🔉 Sound and multimedia
	Galaxy J7 Duo (SM-J720F/DS 32GB/4GB)	Galaxy A8s (SM-G8870 128GB/6GB)
Loudspeaker	Mono sound (not stereo)	Stereo sound
Active noise cancellation	Not supported	2 microphones or more
Radio	FM	Not supported
TV	Not supported	Not supported
Video formats	MP4, H.264, H.263, XviD, MKV	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Galaxy J7 Duo (SM-J720F/DS 32GB/4GB)	Galaxy A8s (SM-G8870 128GB/6GB)
USB	MicroUSB 2.0	USB 2.0 Type-C, USB OTG On-The-Go
Audio output	3.5mm jack	3.5mm jack
TV output	Not supported	Not supported
Bluetooth	5.0 + A2DP/LE	5.0 + A2DP/LE
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, BeiDou	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFC	Not supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Galaxy J7 Duo (SM-J720F/DS 32GB/4GB)	Galaxy A8s (SM-G8870 128GB/6GB)
Sensors	Accelerometer ANT+ Face unlock 2D Fingerprint sensor (front-mounted) Proximity sensor	Accelerometer Ambient light sensor ANT+ Compass Face unlock 2D Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy J7 Duo (SM-J720F/DS 32GB/4GB)	Galaxy A8s (SM-G8870 128GB/6GB)
Battery type	Li-Ion: lithium-ion (Removable)	Li-Ion: lithium-ion (Non removable)
Battery capacity	3000 mAh	3400 mAh
Charger, watts	Wired charging	18W Wired fast charging
Inductive / wireless charging	Not supported	Not supported
Talk time autonomy	20 hours	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Galaxy J7 Duo (SM-J720F/DS 32GB/4GB)	Galaxy A8s (SM-G8870 128GB/6GB)
Call control	Voice dialing, Voice recorder	Voice dialing, Voice recorder, Voice commands
Messaging	SMS (T9), MMS, E-mail, Push mail	SMS (T9), MMS, E-mail, Push mail
Hands-free calling	Supported	Supported
Video calling	Supported	Supported
Ringtones	Polyphonic and customized	Polyphonic and customized
Web browser	HTML, XHTML, HTML5	HTML, XHTML, HTML5
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Not supported	Not supported
Miscellaneous	• Colors: Black, Gold, Rose Gold, White • Samsung Pay	• Colors: Black, Gradient Black, Blue, Pink-Blue, Yellow-Pink • Samsung Pay
☢️ Radiation rate
	Galaxy J7 Duo (SM-J720F/DS 32GB/4GB)	Galaxy A8s (SM-G8870 128GB/6GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	0.543W/kg (head), 1.397W/kg (body)	0.24W/kg (head), 1.168W/kg (body)