Sharp FX (STX-2) vs Samsung Galaxy J7 Duo (SM-J720M/DS)

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

10/28/2018 10:53 PM, updated: 6/13/2022 6:34 PM

Compare Samsung Galaxy J7 Duo X Sharp FX (STX-2) 01Point

Specifications Compare Models Pictures

3"
TFT

240x400

2
MP

128MB
RAM

Single-core

1240
mAh

(Removable)

27Points Samsung Galaxy J7 Duo (SM-J720M/DS) Compare Sharp FX 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-J720M/DS)

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!

1 Advantage Sharp FX (STX-2)	vs	27 Advantages Samsung Galaxy J7 Duo (SM-J720M/DS)
+142 grams (4.97 ounces)23% Lighter	vs	174 grams (6.09 ounces)
128MB	vs	+3GB LPDDR423 times More RAM memory. Typically more responsive and better for multitasking.
256MB (80MB available)	vs	+32GB (21GB available)268 times More internal storage for applications and files
Until 32GB microSD, microSDHC	vs	+Until 256GB microSD, microSDXC7 times More external storage for files using memory cards
15.2 millimeters (0.6 inches)	vs	+8.2 millimeters (0.32 inches)85% Thinner
TFT LCD	vs	+Super AMOLEDAdvantage Super AMOLED display is brighter and more vivid
260 thousand	vs	+16 million61 times More colors on the screen is better quality images and videos
240x400 pixels	vs	+720x1280 pixels9 times Higher resolution screen
155 PPI	vs	+267 PPI72% Crisper display of text, images and videos because it has more pixels per inch (ppi)
3"	vs	+5.5"83% Larger screen
(back) 2MP	vs	+(dual camera) 13MP + 5MP8 times Higher resolution main camera
Not supported	vs	+LED flash on both camerasAdvantage The LED flash on both cameras helps in dark places or in low light
Not supported	vs	+AutofocusAdvantage Best autofocus type for taking pictures
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
Not supported	vs	+(front) 8MPAdvantage A front-camera is best for taking selfies
QVGA (320x240)	vs	+Full HD (1920x1080)26 times More image quality for recording videos with the primary camera
10 apps	vs	+3500000 apps (Google Play Store)349999 times More apps available to download and use
3G HSDPA	vs	+4G LTEAdvantage The 4G LTE network is newer and faster
(3G HSDPA) 3.6 Mbps	vs	+(4G LTE) 150 Mbps41 times Faster for surfing the internet and download files
Single	vs	+MultitouchAdvantage Better touch type. Multitouch allows to use more fingers at the same time.
Not supported	vs	+Accelerometer, ANT+, Face unlock 2D, Fingerprint sensor (front-mounted), Proximity sensorAdvantage Sensors help you use the device
1240 mAh	vs	+3000 mAh142% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
Not supported	vs	+Video callingAdvantage The video calling allows to make calls with voice and video
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.
Not supported	vs	+802.11 a/b/g/n/ac [wifi5]Advantage WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster
2.1 + A2DP	vs	+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster
WAP, HTML	vs	+HTML, XHTML, HTML5Advantage Better sites viewing on the internet

9 Common items in both devices

Only digital zoom

Capacitive

Li-Ion: lithium-ion (Removable)

Hands-free calling

Vibrating alert

3.5mm jack

+2 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
	Sharp FX (STX-2)	Galaxy J7 Duo (SM-J720M/DS)
Change model		Choose the model
Model	Sharp FX (STX-2)	Galaxy J7 Duo (SM-J720M/DS)
Other model names	AT&T Sharp FX STX-2, Sharp FX AT&T	Galaxy J7 Duo J720M/Dual-Sim, Samsung J720
Country or region available	USA	(Latin America), Brazil
Brand	Sharp	Samsung
Release date	7/25/2010	4/1/2018
Depth	15.2 millimeters (0.6 inches)	8.2 millimeters (0.32 inches)
Size (width x height)	55.9 x 114.3 millimeters (2.2 x 4.5 in)	77.2 x 153.5 millimeters (3.04 x 6.04 in)
Weight	142 grams (4.97 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
	Sharp FX (STX-2)	Galaxy J7 Duo (SM-J720M/DS)
Display type	TFT LCD	Super AMOLED
Screen size	3" inches	5.5" inches
Screen-to-body ratio	~40.1% (screen-to-body ratio)	~70.4% (screen-to-body ratio)
Display resolution	240x400 pixels	720x1280 pixels (16:9)
Touchscreen	Capacitive Single touch 1-point	Capacitive Multitouch
Pixel density (dot pitch)	155 PPI	267 PPI
Colors	260 thousand	16 million
Scratch-resistant glass	Not supported	Not supported
Refresh rate	feature not registered	60Hz
Display features	feature not registered	Not supported
🤖 Operating System
	Sharp FX (STX-2)	Galaxy J7 Duo (SM-J720M/DS)
System version	Proprietary OS	Android 8.0 Oreo
Firmware update	feature not registered	Android 10
User Interface	feature not registered	One UI 2.0
⚙️ Processor
	Sharp FX (STX-2)	Galaxy J7 Duo (SM-J720M/DS)
Chipset	feature not registered	64bit: Samsung Exynos 7885 (14nm)
CPU	Single-core, 1 processor: Single-core	Octa-core, 2 processors: 2x 2.2GHz ARM Cortex-A73 (Dual-core) 6x 1.6GHz ARM Cortex-A53 (Hexa-core)
GPU graphical controller	feature not registered	ARM Mali-G71 MP2
Performance (benchmark)	feature not registered	AnTuTu: 98104 (v7)
💽 Memory and storage
	Sharp FX (STX-2)	Galaxy J7 Duo (SM-J720M/DS)
RAM memory	128MB	3GB LPDDR4
Internal storage	256MB (80MB available)	32GB (21GB available) eMMC 5.1
External storage	Until 32GB microSD, microSDHC (dedicated slot)	Until 256GB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	Sharp FX (STX-2)	Galaxy J7 Duo (SM-J720M/DS)
Dual-SIM	Not supported	Dual-SIM Standby - Call active on one sim card (dedicated slot)
SIM card	1 slot (Single-SIM) Standard mini-SIM (2FF)	2 slots (Dual-SIM) micro-SIM (3FF)
Maximum Download / Upload	3.6 Mbps	150/50 Mbps
Network technology	2G, 3G	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 850/1900/2100	UMTS 850/900/1700/1900/2100
Primary 4G network	Not supported	LTE Cat4 (1, 3, 4, 5, 7, 8, 12, 13, 17, 28, 66) TD-LTE (38, 40, 41)
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA	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 850/900/1700/1900/2100
Secondary 4G network	Not supported	Not supported
Secondary data network	Not supported	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+
📷 Camera
	Sharp FX (STX-2)	Galaxy J7 Duo (SM-J720M/DS)
Back camera (main camera)	2 megapixels	(dual camera) 13 megapixels 5MP depth f/1.9
Main camera resolution	1600x1200 pixels	4128x3096 pixels
Video recording (primary)	QVGA (320x240) 15 fps	Full HD (1920x1080) 30 fps
Flash	Not supported	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	Not supported	Autofocus
Touch focus	Not supported	Supported
Image stabilization	Not supported	EIS: Digital stabilization
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	Not supported	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
	Sharp FX (STX-2)	Galaxy J7 Duo (SM-J720M/DS)
Front camera (secondary)	Not supported	8 megapixels
Front camera resolution	Not supported	3264x2448 pixels
Video recording (secondary)	Not supported	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
	Sharp FX (STX-2)	Galaxy J7 Duo (SM-J720M/DS)
Loudspeaker	Supported	Mono sound (not stereo)
Active noise cancellation	Not supported	Not supported
Radio	FM	FM
TV	Not supported	Not supported
Video formats	MP4, H.264, H.263	MP4, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, WMA, eAAC+	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Sharp FX (STX-2)	Galaxy J7 Duo (SM-J720M/DS)
USB	MicroUSB 2.0	MicroUSB 2.0
Audio output	3.5mm jack	3.5mm jack
TV output	Not supported	Not supported
Bluetooth	2.1 + A2DP	5.0 + A2DP/LE
WiFi	Not supported	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS	A-GPS, GeoTagging, GLONASS, BeiDou
NFC	Not supported	Not supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Sharp FX (STX-2)	Galaxy J7 Duo (SM-J720M/DS)
Sensors	Not supported	Accelerometer ANT+ Face unlock 2D Fingerprint sensor (front-mounted) Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Sharp FX (STX-2)	Galaxy J7 Duo (SM-J720M/DS)
Battery type	Li-Ion: lithium-ion (Removable) BTR2	Li-Ion: lithium-ion (Removable)
Battery capacity	1240 mAh	3000 mAh
Charger, watts	Wired charging	Wired charging
Inductive / wireless charging	feature not registered	Not supported
Talk time autonomy	3 hours	20 hours
Standby	240 hours (10 days)	feature not registered
➕ Other features
	Sharp FX (STX-2)	Galaxy J7 Duo (SM-J720M/DS)
Call control	Voice recorder	Voice dialing, Voice recorder
Messaging	SMS, MMS, E-mail	SMS (T9), MMS, E-mail, Push mail
Hands-free calling	Supported	Supported
Video calling	Not supported	Supported
Ringtones	Polyphonic and customized	Polyphonic and customized
Web browser	WAP, HTML	HTML, XHTML, HTML5
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Retractable QWERTY keyboard	Not supported
Miscellaneous	• Colors: Black • Facebook, Twitter, MySpace • Tetris, UNO, Pacman games • AT&T Mobile TV • Java framework	• Colors: Black, Gold, Rose Gold, White • Samsung Pay
☢️ Radiation rate
	Sharp FX (STX-2)	Galaxy J7 Duo (SM-J720M/DS)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	0.97W/kg (head), 0.55W/kg (body)
SAR 2W/kg (Europe, UK, etc.)	feature not registered	feature not registered