Samsung Galaxy J7 Duo (SM-J720F) vs Samsung Galaxy J8 (SM-J810Y/DS 32GB)

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Side by side comparison between Samsung Galaxy J7 Duo vs Samsung Galaxy J8 phones, differences, pros, cons and full specifications. What's the better?

10/28/2018 11:13 PM, updated: 2/27/2023 5:56 PM

Compare Samsung Galaxy J8 X Samsung Galaxy J7 Duo (SM-J720F) 07Points

Specifications Compare Models Pictures

5.5"
AMOLED

720x1280

13
MP

8mp

3GB
RAM

Octa-core

3000
mAh

(Removable)

11Points Samsung Galaxy J8 (SM-J810Y/DS 32GB) Compare Samsung Galaxy J7 Duo X

Specifications Compare Models Pictures

6"
AMOLED

720x1480

16
MP

16mp

3GB
RAM

Octa-core

3500
mAh

(Non removable)

What's the better phone? Samsung Galaxy J8 (SM-J810Y/DS 32GB)

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!

7 Advantages Samsung Galaxy J7 Duo (SM-J720F)	vs	11 Advantages Samsung Galaxy J8 (SM-J810Y/DS 32GB)
+3GB LPDDR4Advantage This RAM type is better and more efficient.	vs	3GB LPDDR3
+174 grams (6.09 ounces)2% Lighter	vs	177 grams (6.2 ounces)
+ANT+Advantage Sensors help you use the device	vs	Not supported
+Li-Ion: lithium-ion (Removable)Advantage Removable battery can be replaced easily	vs	Li-Ion: lithium-ion (Non removable)
+802.11 a/b/g/n/ac [wifi5]Advantage WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster	vs	802.11 b/g/n [wifi4]
+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster	vs	4.2 + A2DP
+Gorilla GlassAdvantage Protection against scratches on the screen lets you carry your phone with your keys	vs	Not supported
2.2GHz 64bit Octa-core (14nm)	vs	+1.8GHz 64bit Octa-core (14nm)6% More powerful processor, you can open your applications faster
720x1280 pixels	vs	+720x1480 pixels16% Higher resolution screen
267 PPI	vs	+274 PPI3% Crisper display of text, images and videos because it has more pixels per inch (ppi)
5.5"	vs	+6"9% Larger screen
(dual camera) 13MP + 5MP	vs	+(dual camera) 16MP + 5MP18% Higher resolution main camera
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) 16MP99% Higher resolution secondary camera to take pictures and selfies
(4G LTE) 150 Mbps	vs	+(4G LTE-A) 300 Mbps100% Faster for surfing the internet and download files
3000 mAh	vs	+3500 mAh17% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
1 slot (Single-SIM) (dedicated slot)	vs	+2 slots (Dual-SIM) (dedicated slot)Advantage You can have more mobile carriers/operators on the same device.

31 Common items in both devices

32GB (21GB available)

eMMC 5.1

Until 256GB microSD, microSDXC

8.2 millimeters (0.32 inches)

Plastic body, glass front

Super AMOLED

60Hz

+24 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)	Galaxy J8 (SM-J810Y/DS 32GB)
Change model		Choose the model
Model	Galaxy J7 Duo (SM-J720F)	Galaxy J8 (SM-J810Y/DS 32GB)
Other model names	Galaxy J7 Duo J720F Single-Sim, Samsung J720	Galaxy J8 J810Y/Dual-SIM (3GB RAM), SM-J810YZPDXTC
Country or region available	South Africa, United Arab Emirates	Australia, Philippines, Indonesia, Malaysia, Thailand, Taiwan, Vietnam
Brand	Samsung	Samsung
Release date	4/1/2018	6/28/2018, Announced: 5/31/2018
Depth	8.2 millimeters (0.32 inches)	8.2 millimeters (0.32 inches)
Size (width x height)	77.2 x 153.5 millimeters (3.04 x 6.04 in)	75.7 x 159.2 millimeters (2.98 x 6.27 in)
Weight	174 grams (6.09 ounces)	177 grams (6.2 ounces)
Build, materials	Plastic body, glass front	Plastic body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	Galaxy J7 Duo (SM-J720F)	Galaxy J8 (SM-J810Y/DS 32GB)
Display type	Super AMOLED	Super AMOLED
Screen size	5.5" inches	6" inches
Screen-to-body ratio	~70.4% (screen-to-body ratio)	~75.8% (screen-to-body ratio)
Display resolution	720x1280 pixels (16:9)	720x1480 pixels (18.5:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	267 PPI	274 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass	Not supported
Refresh rate	60Hz	60Hz
Display features	Not supported	Not supported
🤖 Operating System
	Galaxy J7 Duo (SM-J720F)	Galaxy J8 (SM-J810Y/DS 32GB)
System version	Android 8.0 Oreo	Android 8.0 Oreo
Firmware update	Android 10	Android 10
User Interface	One UI 2.0	One UI 2.0
⚙️ Processor
	Galaxy J7 Duo (SM-J720F)	Galaxy J8 (SM-J810Y/DS 32GB)
Chipset	64bit: Samsung Exynos 7885 (14nm)	64bit: Qualcomm Snapdragon 450 (SDM450) (14nm)
CPU	Octa-core, 2 processors: 2x 2.2GHz ARM Cortex-A73 (Dual-core) 6x 1.6GHz ARM Cortex-A53 (Hexa-core)	Octa-core, 1 processor: 8x 1.8GHz ARM Cortex-A53 (Octa-core)
GPU graphical controller	ARM Mali-G71 MP2	Qualcomm Adreno 506 (600MHz)
Performance (benchmark)	AnTuTu: 98104 (v7)	feature not registered
💽 Memory and storage
	Galaxy J7 Duo (SM-J720F)	Galaxy J8 (SM-J810Y/DS 32GB)
RAM memory	3GB LPDDR4	3GB LPDDR3
Internal storage	32GB (21GB available) eMMC 5.1	32GB (21GB available) eMMC 5.1
External storage	Until 256GB microSD, microSDXC (dedicated slot)	Until 256GB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	Galaxy J7 Duo (SM-J720F)	Galaxy J8 (SM-J810Y/DS 32GB)
Dual-SIM	Not supported	Dual-SIM Standby - Call active on one sim card (dedicated slot)
SIM card	1 slot (Single-SIM) micro-SIM (3FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	150/50 Mbps	300/50 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	GSM 850/900/1800/1900
Primary 3G network	UMTS 850/900/1900/2100	UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat4 (1, 3, 5, 7, 8, 20) TD-LTE (38, 40, 41)	LTE Cat6 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 66) TD-LTE (38, 40, 41)
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G network	Not supported	GSM 850/900/1800/1900
Secondary 3G network	Not supported	UMTS 850/900/1700/1900/2100
Secondary 4G network	Not supported	LTE Cat6 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 66) TD-LTE (38, 40, 41)
Secondary data network	Not supported	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
📷 Camera
	Galaxy J7 Duo (SM-J720F)	Galaxy J8 (SM-J810Y/DS 32GB)
Back camera (main camera)	(dual camera) 13 megapixels 5MP depth f/1.9	(dual camera) 16 megapixels 5MP depth f/1.9
Main camera resolution	4128x3096 pixels	4608x3456 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	Full HD (1920x1080) 30 fps
Flash	LED flash on both cameras	LED flash on both cameras
Focal aperture	f/1.9 (aperture)	f/1.7 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	feature not registered
Pixel size	feature not registered	feature not registered
Autofocus	Autofocus	Autofocus
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	EIS: Digital stabilization
Zoom	Only digital zoom	Only digital 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	feature not registered
📸 Front camera
	Galaxy J7 Duo (SM-J720F)	Galaxy J8 (SM-J810Y/DS 32GB)
Front camera (secondary)	8 megapixels	16 megapixels
Front camera resolution	3264x2448 pixels	4608x3456 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	LED	LED
Focal aperture	f/1.9 (aperture)	f/1.9 (aperture)
Focal length	feature not registered	26mm (lens)
Sensor size	feature not registered	1/3.06" inches
Pixel size	feature not registered	1µm pixel
🔉 Sound and multimedia
	Galaxy J7 Duo (SM-J720F)	Galaxy J8 (SM-J810Y/DS 32GB)
Loudspeaker	Mono sound (not stereo)	Mono sound (not stereo)
Active noise cancellation	Not supported	Not supported
Radio	FM	FM (RDS)
TV	Not supported	Not supported
Video formats	MP4, H.264, H.263, XviD, MKV	MP4, H.265, H.264, H.263
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, OGG, eAAC+, FLAC
🔌 Connectivity
	Galaxy J7 Duo (SM-J720F)	Galaxy J8 (SM-J810Y/DS 32GB)
USB	MicroUSB 2.0	MicroUSB 2.0, USB OTG On-The-Go
Audio output	3.5mm jack	3.5mm jack
TV output	Not supported	Not supported
Bluetooth	5.0 + A2DP/LE	4.2 + A2DP
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, BeiDou	A-GPS, GeoTagging, GLONASS, BeiDou
NFC	Not supported	Not supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Galaxy J7 Duo (SM-J720F)	Galaxy J8 (SM-J810Y/DS 32GB)
Sensors	Accelerometer ANT+ Face unlock 2D Fingerprint sensor (front-mounted) Proximity sensor	Accelerometer Face unlock 2D Fingerprint sensor (rear-mounted) Hall effect Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy J7 Duo (SM-J720F)	Galaxy J8 (SM-J810Y/DS 32GB)
Battery type	Li-Ion: lithium-ion (Removable)	Li-Ion: lithium-ion (Non removable)
Battery capacity	3000 mAh	3500 mAh
Charger, watts	Wired charging	7.75W (5V/1.55A) Wired charging
Inductive / wireless charging	Not supported	Not supported
Talk time autonomy	20 hours	23 hours
Standby	feature not registered	feature not registered
➕ Other features
	Galaxy J7 Duo (SM-J720F)	Galaxy J8 (SM-J810Y/DS 32GB)
Call control	Voice dialing, Voice recorder	Voice dialing, Voice recorder
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, Gold, Blue, Lavender, Purple
☢️ Radiation rate
	Galaxy J7 Duo (SM-J720F)	Galaxy J8 (SM-J810Y/DS 32GB)
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)	0.574W/kg (head), 1.176W/kg (body)