Samsung Galaxy J7 Duo (SM-J720F/DS 32GB/3GB) vs Samsung Galaxy C8 (SM-C7100 64GB)

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Side by side comparison between Samsung Galaxy J7 Duo vs Samsung Galaxy C8 phones, differences, pros, cons and full specifications. What's the better?

10/28/2018 11:19 PM, updated: 6/6/2025 11:25 AM

Compare Samsung Galaxy C8 X Samsung Galaxy J7 Duo (SM-J720F/DS 32GB/3GB) 09Points

Specifications Compare Models Pictures

5.5"
AMOLED

720x1280

13
MP

8mp

3GB
RAM

Octa-core

3000
mAh

(Removable)

14Points Samsung Galaxy C8 (SM-C7100 64GB) Compare Samsung Galaxy J7 Duo X

Specifications Compare Models Pictures

5.5"
AMOLED

1080x1920

13
MP

16mp

4GB
RAM

Octa-core

3000
mAh

(Non removable)

What's the better phone? Samsung Galaxy C8 (SM-C7100 64GB)

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!

9 Advantages Samsung Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)	vs	14 Advantages Samsung Galaxy C8 (SM-C7100 64GB)
+174 grams (6.09 ounces)3% Lighter	vs	180 grams (6.3 ounces)
+Android 10Advantage Android 10 is newer and safer	vs	Android 8.1 Oreo
+ANT+Advantage Sensors help you use the device	vs	Not supported
+Face unlock 2DAdvantage 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)
+2 slots (Dual-SIM) (dedicated slot)Advantage You can have more mobile carriers/operators on the same device.	vs	2 slots (Dual-SIM) (hybrid slot/shares the same microSD slot)
+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	+2.6GHz 64bit Octa-core (16nm)8% More powerful processor, you can open your applications faster
3GB LPDDR4	vs	+4GB LPDDR4X33% More RAM memory. Typically more responsive and better for multitasking.
32GB (21GB available)	vs	+64GB (51GB available)143% More internal storage for applications and files
8.2 millimeters (0.32 inches)	vs	+7.9 millimeters (0.31 inches)4% Thinner
Plastic body, glass front	vs	+Aluminum body, glass frontAdvantage More resistant material
720x1280 pixels	vs	+1080x1920 pixels125% Higher resolution screen
267 PPI	vs	+401 PPI50% Crisper display of text, images and videos because it has more pixels per inch (ppi)
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
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
Not supported	vs	+Active noise cancellationAdvantage More noise-canceling microphones allow for better quality in calls and audio for recorded videos

30 Common items in both devices

eMMC 5.1

Until 256GB microSD, microSDXC

Super AMOLED

60Hz

16 million

5.5"

(dual camera) 13MP + 5MP

+23 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/3GB)	Galaxy C8 (SM-C7100 64GB)
Change model		Choose the model
Model	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)	Galaxy C8 (SM-C7100 64GB)
Other model names	Galaxy J7 Duo (32GB + 3GB RAM) Dual-Sim, Samsung J720	盖乐世 C8 4GB RAM + 64GB, SM-C7100ZKGCHC
Country or region available	(Europe), (Global, International), Singapore, Thailand, Vietnam	China, Hong Kong
Brand	Samsung	Samsung
Release date	4/1/2018	9/1/2017
Depth	8.2 millimeters (0.32 inches)	7.9 millimeters (0.31 inches)
Size (width x height)	77.2 x 153.5 millimeters (3.04 x 6.04 in)	74.7 x 152.4 millimeters (2.94 x 6 in)
Weight	174 grams (6.09 ounces)	180 grams (6.3 ounces)
Build, materials	Plastic body, glass front	Aluminum body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)	Galaxy C8 (SM-C7100 64GB)
Display type	Super AMOLED	Super AMOLED
Screen size	5.5" inches	5.5" inches
Screen-to-body ratio	~70.4% (screen-to-body ratio)	~73.3% (screen-to-body ratio)
Display resolution	720x1280 pixels (16:9)	1080x1920 pixels
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	267 PPI	401 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass	Not supported
Refresh rate	60Hz	60Hz
Display features	Not supported	Always-On Display
🤖 Operating System
	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)	Galaxy C8 (SM-C7100 64GB)
System version	Android 8.0 Oreo	Android 7.1.1 Nougat
Firmware update	Android 10	Android 8.1 Oreo
User Interface	One UI 2.0	feature not registered
⚙️ Processor
	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)	Galaxy C8 (SM-C7100 64GB)
Chipset	64bit: Samsung Exynos 7885 (14nm)	64bit: MediaTek Helio P25 (MT6757T) (16nm)
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: 4x 2.6GHz ARM Cortex-A53 (Quad-core) 4x 1.6GHz ARM Cortex-A53 (Quad-core)
GPU graphical controller	ARM Mali-G71 MP2	ARM Mali-T880 MP2 (1GHz)
Performance (benchmark)	AnTuTu: 98104 (v7)	feature not registered
💽 Memory and storage
	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)	Galaxy C8 (SM-C7100 64GB)
RAM memory	3GB LPDDR4	4GB LPDDR4X
Internal storage	32GB (21GB available) eMMC 5.1	64GB (51GB available) eMMC 5.1
External storage	Until 256GB microSD, microSDXC (dedicated slot)	Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)
📶 Mobile networks
	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)	Galaxy C8 (SM-C7100 64GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card (dedicated slot)	Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot)
SIM card	2 slots (Dual-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	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 Cat6 (Bands 1, 3, 5, 7, 8) TD-LTE (Bands 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	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+	GPRS, EDGE
📷 Camera
	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)	Galaxy C8 (SM-C7100 64GB)
Back camera (main camera)	(dual camera) 13 megapixels 5MP depth f/1.9	(dual camera) 13 megapixels 5MP f/1.9
Main camera resolution	4128x3096 pixels	4128x3096 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 only main camera
Camera extras	feature not registered	feature not registered
📸 Front camera
	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)	Galaxy C8 (SM-C7100 64GB)
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	feature not registered
Sensor size	feature not registered	feature not registered
Pixel size	feature not registered	feature not registered
🔉 Sound and multimedia
	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)	Galaxy C8 (SM-C7100 64GB)
Loudspeaker	Mono sound (not stereo)	Mono sound (not stereo)
Active noise cancellation	Not supported	2 microphones
Radio	FM	FM
TV	Not supported	Not supported
Video formats	MP4, H.264, H.263, XviD, MKV	MP4, H.265, H.264, H.263, MKV
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, OGG, eAAC+, FLAC
🔌 Connectivity
	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)	Galaxy C8 (SM-C7100 64GB)
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
NFC	Not supported	Not supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)	Galaxy C8 (SM-C7100 64GB)
Sensors	Accelerometer ANT+ Face unlock 2D Fingerprint sensor (front-mounted) Proximity sensor	Accelerometer Ambient light sensor Compass Fingerprint sensor (front-mounted) Gyroscope Hall effect Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)	Galaxy C8 (SM-C7100 64GB)
Battery type	Li-Ion: lithium-ion (Removable)	Li-Ion: lithium-ion (Non removable)
Battery capacity	3000 mAh	3000 mAh
Charger, watts	Wired charging	Wired charging
Inductive / wireless charging	Not supported	Not supported
Talk time autonomy	20 hours	16 hours
Standby	feature not registered	feature not registered
➕ Other features
	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)	Galaxy C8 (SM-C7100 64GB)
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, Pink
☢️ Radiation rate
	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)	Galaxy C8 (SM-C7100 64GB)
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)	0.719W/kg (head), 1.26W/kg (body)