Samsung Z (SM-Z910F) vs Samsung Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)

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

10/28/2018 11:19 PM, updated: 6/13/2022 6:34 PM

Compare Samsung Galaxy J7 Duo X Samsung Z (SM-Z910F) 08Points

Specifications Compare Models Pictures

4.8"
AMOLED

720x1280

8
MP

2.1mp

2GB
RAM

Quad-core

2600
mAh

(Removable)

19Points Samsung Galaxy J7 Duo (SM-J720F/DS 32GB/3GB) Compare Samsung Z X

Specifications Compare Models Pictures

5.5"
AMOLED

720x1280

13
MP

8mp

3GB
RAM

Octa-core

3000
mAh

(Removable)

What's the better phone? Samsung Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)

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!

8 Advantages Samsung Z (SM-Z910F)	vs	19 Advantages Samsung Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)
+136 grams (4.76 ounces)28% Lighter	vs	174 grams (6.09 ounces)
+306 PPI15% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	267 PPI
+Ambient light sensorAdvantage Sensors help you use the device	vs	Not supported
+BarometerAdvantage Sensors help you use the device	vs	Not supported
+CompassAdvantage Sensors help you use the device	vs	Not supported
+GyroscopeAdvantage Sensors help you use the device	vs	Not supported
+Heart rateAdvantage Sensors help you use the device	vs	Not supported
+NFCAdvantage NFC allows you to make payments by approach quickly and securely	vs	Not supported
2.3GHz 32bit Quad-core	vs	+2.2GHz 64bit Octa-core (14nm)21% More powerful processor, you can open your applications faster
2GB LPDDR3	vs	+3GB LPDDR450% More RAM memory. Typically more responsive and better for multitasking.
16GB (12GB available)	vs	+32GB (21GB available)75% More internal storage for applications and files
Until 64GB microSD, microSDXC	vs	+Until 256GB microSD, microSDXC3 times More external storage for files using memory cards
8.5 millimeters (0.33 inches)	vs	+8.2 millimeters (0.32 inches)4% Thinner
4.8"	vs	+5.5"15% Larger screen
(back) 8MP	vs	+(dual camera) 13MP + 5MP123% Higher resolution main camera
LED flash	vs	+LED flash on both camerasAdvantage The LED flash on both cameras helps in dark places or in low light
Not supported	vs	+EIS: Digital stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video
Not supported	vs	+HDR photo only main cameraAdvantage The HDR technology produced photos with more detail in dark areas
(front) 2.1MP	vs	+(front) 8MP3 times Higher resolution secondary camera to take pictures and selfies
1500 apps	vs	+3500000 apps (Google Play Store)2332 times More apps available to download and use
Not supported	vs	+ANT+Advantage Sensors help you use the device
Not supported	vs	+Face unlockAdvantage Sensors help you use the device
2600 mAh	vs	+3000 mAh15% 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.
802.11 a/b/g/n [wifi4]	vs	+802.11 a/b/g/n/ac [wifi5]Advantage WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster
4.0 + A2DP	vs	+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster
Not supported	vs	+Gorilla GlassAdvantage Protection against scratches on the screen lets you carry your phone with your keys

20 Common items in both devices

Super AMOLED

16 million

720x1280 pixels

Only digital zoom

Autofocus

Full HD (1920x1080)

(front) Full HD (1920x1080)

+13 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
	Samsung Z (SM-Z910F)	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)
Change model		Choose the model
Model	Samsung Z (SM-Z910F)	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)
Other model names	Samsung SM-Z910F, Samsung Redwood	Galaxy J7 Duo (32GB + 3GB RAM) Dual-Sim, Samsung J720
Country or region available	Russia	(Europe), (Global, International), Singapore, Thailand, Vietnam
Brand	Samsung	Samsung
Release date	8/1/2014	4/1/2018
Depth	8.5 millimeters (0.33 inches)	8.2 millimeters (0.32 inches)
Size (width x height)	69.8 x 138.2 millimeters (2.75 x 5.44 in)	77.2 x 153.5 millimeters (3.04 x 6.04 in)
Weight	136 grams (4.76 ounces)	174 grams (6.09 ounces)
Build, materials	feature not registered	Plastic body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	Samsung Z (SM-Z910F)	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)
Display type	Super AMOLED	Super AMOLED
Screen size	4.8" inches	5.5" inches
Screen-to-body ratio	~65.8% (screen-to-body ratio)	~70.4% (screen-to-body ratio)
Display resolution	720x1280 pixels	720x1280 pixels (16:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	306 PPI	267 PPI
Colors	16 million	16 million
Scratch-resistant glass	Not supported	Gorilla Glass
Refresh rate	feature not registered	60Hz
Display features	feature not registered	Not supported
🤖 Operating System
	Samsung Z (SM-Z910F)	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)
System version	Tizen 2.2.1	Android 8.0 Oreo
Firmware update	Tizen 2.3	Android 10
User Interface	feature not registered	One UI 2.0
⚙️ Processor
	Samsung Z (SM-Z910F)	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)
Chipset	32bit: Qualcomm Snapdragon 800 MSM8974AA (28nm)	64bit: Samsung Exynos 7885 (14nm)
CPU	Quad-core, 1 processor: 4x 2.3GHz Krait 400 (Quad-core)	Octa-core, 2 processors: 2x 2.2GHz ARM Cortex-A73 (Dual-core) 6x 1.6GHz ARM Cortex-A53 (Hexa-core)
GPU graphical controller	Qualcomm Adreno 330	ARM Mali-G71 MP2
Performance (benchmark)	feature not registered	AnTuTu: 98104 (v7)
💽 Memory and storage
	Samsung Z (SM-Z910F)	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)
RAM memory	2GB LPDDR3	3GB LPDDR4
Internal storage	16GB (12GB available)	32GB (21GB available) eMMC 5.1
External storage	Until 64GB microSD, microSDXC (dedicated slot)	Until 256GB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	Samsung Z (SM-Z910F)	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)
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) micro-SIM (3FF)
Maximum Download / Upload	150/50 Mbps	150/50 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 850/900/1900/2100
Primary 4G network	LTE Cat4 800/850/900/1800/2100/2600 (Bands 1,3,5,7,8,20)	LTE Cat4 (1, 3, 5, 7, 8, 20) TD-LTE (38, 40, 41)
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE
Secondary 2G network	Not supported	GSM 850/900/1800/1900
Secondary 3G network	Not supported	UMTS 850/900/1900/2100
Secondary 4G network	Not supported	Not supported
Secondary data network	Not supported	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+
📷 Camera
	Samsung Z (SM-Z910F)	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)
Back camera (main camera)	8 megapixels	(dual camera) 13 megapixels 5MP depth f/1.9
Main camera resolution	3264x2448 pixels	4128x3096 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	Full HD (1920x1080) 30 fps
Flash	LED flash	LED flash on both cameras
Focal aperture	feature not registered	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
Autofocus	Autofocus	Autofocus
Touch focus	Supported	Supported
Image stabilization	Not supported	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	Not supported	HDR photo only main camera
Camera extras	feature not registered	feature not registered
📸 Front camera
	Samsung Z (SM-Z910F)	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)
Front camera (secondary)	2.1 megapixels	8 megapixels
Front camera resolution	1920x1080 pixels	3264x2448 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	Not supported	LED
Focal aperture	feature not registered	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
	Samsung Z (SM-Z910F)	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)
Loudspeaker	Supported	Mono sound (not stereo)
Active noise cancellation	2 microphones or more	Not supported
Radio	FM	FM
TV	Not supported	Not supported
Video formats	MP4, H.264, H.263, WMV	MP4, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Samsung Z (SM-Z910F)	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)
USB	MicroUSB 2.0	MicroUSB 2.0
Audio output	3.5mm jack	3.5mm jack
TV output	Micro-B USB MHL	Not supported
Bluetooth	4.0 + A2DP	5.0 + A2DP/LE
WiFi	802.11 a/b/g/n [wifi4] (2.4GHz, 5GHz) + MIMO	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	A-GPS, GeoTagging, GLONASS, BeiDou
NFC	Supported	Not supported
Infrared port	Supported	Not supported
🧭 Sensors
	Samsung Z (SM-Z910F)	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)
Sensors	Accelerometer Ambient light sensor Barometer Compass Fingerprint sensor Gyroscope Hall effect Heart rate Proximity sensor	Accelerometer ANT+ Face unlock Fingerprint sensor (front-mounted) Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Samsung Z (SM-Z910F)	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)
Battery type	Li-Ion: lithium-ion (Removable)	Li-Ion: lithium-ion (Removable)
Battery capacity	2600 mAh	3000 mAh
Charger, watts	Wired charging	Wired charging
Inductive / wireless charging	feature not registered	Not supported
Talk time autonomy	feature not registered	20 hours
Standby	feature not registered	feature not registered
➕ Other features
	Samsung Z (SM-Z910F)	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)
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, Brown • WiFi hotspot • Java framework	• Colors: Black, Gold, Rose Gold, White • Samsung Pay
☢️ Radiation rate
	Samsung Z (SM-Z910F)	Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)
SAR 1.6W/kg (USA, Mexico, etc.)	0.96W/kg (head), 1.33W/kg (body)	feature not registered
SAR 2W/kg (Europe, UK, etc.)	0.734W/kg (head), 0.304W/kg (body)	0.543W/kg (head), 1.397W/kg (body)