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Specifications
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Phone	ZTE Grand X	Samsung Galaxy J7 (2017, GSM) / J7 Prime / Halo	Samsung SCH-A990	Nokia N-Gage	Samsung Galaxy S II, Epic 4G Touch
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	5" diag. 16 : 9	5.5" diag. 16 : 9	?	?	4.5" diag. 5 : 3
Display Resolution & Type	540 x 960 pixels (~220 ppi) LCD (TFT/TFD)	720 x 1280 pixels (~267 ppi) LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	176 x 208 pixels LCD (Color)	480 x 800 pixels (~206 ppi) AMOLED
Display Refresh	60 Hz	60 Hz	?	?	60 Hz
Battery	2,300 mAh	3,300 mAh	1,000 mAh	850 mAh	1,800 mAh
Processor	1.2 GHz Qualcomm Snapdragon 200 MSM8210	1.6 GHz Samsung Exynos 7870	?	?	1.2 GHz Samsung Exynos C210 dual-core
RAM	1 GB	2 GB	?	?	?
Storage	4 GB	16 GB *	? raw hardware	? raw hardware	16 GB
Main Camera	5 megapixel	8 megapixel	3 megapixel	-	8 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	720p HD	1080p HD	?	-	1080p HD
Front Camera	1 megapixel	Yes	-	-	2 megapixel
Weight	6.06 oz (172g)	5.8 oz (164g)	4.4 oz (125g)	4.83 oz (137g)	4.55 oz (129g)
Dimensions	5.7" x 2.87" x 0.37" (145 x 73 x 9.4 mm)	5.96" x 3.01" x 0.34" (151 x 76 x 8.6 mm)	3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm)	5.26" x 2.74" x 0.8" (134 x 70 x 20.3 mm)	5.1" x 2.7" x 0.38" (130 x 69 x 9.6 mm)
Form Factor	Slab	Slab	Clamshell	Slab	Slab
Platform / OS	Android	Android	(proprietary)	S60 (Symbian)	Android
Network Bands	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	4G LTE: 2, 3, 4, 5, 7, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 *	CDMA: 850, 1900	GSM: 900, 1800, 1900	4G WiMAX: 41 CDMA: 800, 850, 1900 *
Data Technology	HSPA+ 21	LTE (Cat 6)	EVDO r0	GPRS	WiMAX
Features
Flashlight	-	Yes	Yes	-	-
GPS / Location	n/a	n/a	Yes	n/a	n/a
Accessibility
Adjustable Text Size	n/a	n/a	-	n/a	n/a
Hearing Aid Compatible	Yes M3, T3 (mostly tele-coil compatible)	Yes M3, T3 (mostly tele-coil compatible)	Yes M3 (mostly compatible)	-	Yes M4, T3 (mostly tele-coil compatible)
Multiple Languages	n/a	n/a	Yes	n/a	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	-	Yes
Alerts
Extra Display	-	-	Yes	-	-
Ringer Profiles	-	-	-	Yes	-
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
Mobile Hotspot	n/a	n/a	-	n/a	n/a
USB	Yes Micro-USB	Yes Micro-USB	Yes	Yes	Yes Micro-USB
Wi-Fi	Yes 4 (802.11 b,g,n)	Yes 5 (802.11 a,ac,b,g,n)	-	-	Yes 4 (802.11 a,b,g,n)
Contacts
Picture ID	n/a	n/a	Yes	n/a	n/a
Ringer ID	n/a	n/a	Yes	n/a	n/a
Voice Dialing	n/a	n/a	Yes	n/a	n/a
Customization
Custom Graphics	n/a	n/a	Yes	n/a	n/a
Custom Ringtones	n/a	n/a	Yes	n/a	n/a
Real-Music Ringers	n/a	n/a	Yes	n/a	n/a
Data & Network
Data Tethering	n/a	n/a	Yes	n/a	n/a
WAP / Web Browser	n/a	n/a	Yes	n/a	n/a
Input
Predictive Text Entry	n/a	n/a	Yes	n/a	n/a
Side Keys	Yes	Yes	Yes	-	Yes
Touch Screen	Yes Capacitive	Yes Capacitive	-	-	Yes Capacitive
Memory
Memory Card Slot	Yes	Yes	Yes	Yes	Yes
Messaging
Email Client	n/a	n/a	-	n/a	n/a
EMS / Picture Messaging	n/a	n/a	Yes	n/a	n/a
Instant Messaging	n/a	n/a	-	n/a	n/a
MMS	n/a	n/a	Yes	n/a	n/a
Text Messaging Templates	n/a	n/a	Yes	n/a	n/a
Music
FM Radio	-	Yes	-	Yes	-
Headphone Jack (3.5mm)	Yes	Yes	-	-	Yes
Music Player	n/a	n/a	Yes	n/a	n/a
Stereo Speakers	-	-	Yes	-	-
Photo & Video
DLNA	-	-	-	-	Yes
TV Output	-	-	Yes	-	Yes
Productivity
Alarm	n/a	n/a	Yes	n/a	n/a
Calculator	n/a	n/a	Yes	n/a	n/a
Calendar	n/a	n/a	Yes	n/a	n/a
To-Do List	n/a	n/a	-	n/a	n/a
Voice Memo	n/a	n/a	Yes	n/a	n/a
Software
BREW	n/a	n/a	Yes	n/a	n/a
Games	n/a	n/a	Yes	n/a	n/a
Java (J2ME)	n/a	n/a	-	n/a	n/a
Voice
HD Voice	Yes	Yes	-	-	-
Headset Jack (2.5 mm)	n/a	n/a	-	n/a	n/a
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	ZTE Grand X	Samsung Galaxy J7 (2017, GSM) / J7 Prime / Halo	Samsung SCH-A990	Nokia N-Gage	Samsung Galaxy S II, Epic 4G Touch
	X >	< X >	< X >	< X >	< X

NOTE: Differences are highlighted with bold / black text for visual clarity only.


Phone	ZTE Grand X	Samsung Galaxy J7 (2017, GSM) / J7 Prime / Halo	Samsung SCH-A990	Nokia N-Gage	Samsung Galaxy S II, Epic 4G Touch