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Specifications
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Phone	Ericsson R278d	ZTE Max	Coolpad Defiant	LG Shine CU720	Samsung Jack i637
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	5.7" diag. 16 : 9	5" diag. 16 : 9	2.2" diag. 4 : 3	2.4" diag. 4 : 3
Display Resolution & Type	101 x 40 pixels	720 x 1280 pixels (~258 ppi) LCD (TFT/TFD)	480 x 854 pixels (~196 ppi) LCD (TFT/TFD)	240 x 320 pixels (~182 ppi) LCD (TFT/TFD)	320 x 240 pixels (~167 ppi) LCD (TFT/TFD)
Display Refresh	?	60 Hz	60 Hz	?	?
Battery	?	3,200 mAh	2,450 mAh	900 mAh	1,480 mAh
Processor	?	1.2 GHz Qualcomm Snapdragon 400 MSM8930	1.4 GHz Qualcomm Snapdragon 425 (MSM8917)	?	?
RAM	?	1 GB	1 GB	?	?
Storage	? raw hardware	8 GB	8 GB	? raw hardware	? raw hardware
Main Camera	-	8 megapixel	5 megapixel	2 megapixel	3 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	1080p HD	720p HD	QVGA (320 x 240)	?
Front Camera	-	1 megapixel	2 megapixel	-	-
Weight	9.28 oz (263g)	6.87 oz (195g)	6.5 oz (184g)	4.28 oz (121g)	3.6 oz (102g)
Dimensions	5.1" x 2" x 1" (130 x 51 x 25.4 mm)	6.45" x 3.24" x 0.35" (164 x 82 x 9 mm)	5.69" x 2.81" x 0.4" (145 x 71 x 10.2 mm)	3.93" x 1.99" x 0.59" (100 x 51 x 15.1 mm)	4.4" x 2.4" x 0.5" (112 x 61 x 12.7 mm)
Form Factor	Slab	Slab	Slab	Slide	Slab
Platform / OS	(proprietary)	Android	Android	(proprietary)	Windows Mobile Standard
Network Bands	TDMA: 850, 1900 AMPS: 850	4G LTE: 25 CDMA: 800, 850, 1900	4G LTE: 2, 4, 5, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900
Data Technology	-	LTE (Cat 3)	LTE (Cat 4)	HSDPA 3.6	HSDPA 3.6
Features
Flashlight	-	-	Yes	-	-
GPS / Location	-	n/a	n/a	-	n/a
Accessibility
Adjustable Text Size	-	n/a	n/a	-	n/a
Hearing Aid Compatible	-	Yes M4, T4 (very tele-coil compatible)	Yes M4, T3 (mostly tele-coil compatible)	-	Yes M3 (mostly compatible)
Multiple Languages	Yes	n/a	n/a	Yes	n/a
TTY/TDD (Digital)	-	Yes	Yes	Yes	-
Alerts
Ringer Profiles	Yes	-	-	-	Yes
Connectivity
Bluetooth	-	Yes	Yes	Yes	Yes
Mobile Hotspot	-	n/a	n/a	-	n/a
USB	-	Yes Micro-USB	Yes Micro-USB	Yes	Yes
Wi-Fi	-	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 b,g,n)	-	Yes 802.11 b,g
Contacts
Picture ID	-	n/a	n/a	Yes	n/a
Ringer ID	-	n/a	n/a	Yes	n/a
Voice Dialing	-	n/a	n/a	Yes	n/a
Customization
Custom Graphics	-	n/a	n/a	Yes	n/a
Custom Ringtones	Yes	n/a	n/a	Yes	n/a
Real-Music Ringers	-	n/a	n/a	Yes	n/a
Data & Network
Data Tethering	Yes	n/a	n/a	Yes	n/a
WAP / Web Browser	Yes	n/a	n/a	Yes	n/a
Input
Predictive Text Entry	Yes	n/a	n/a	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	-	-	Yes
Touch Screen	-	Yes Capacitive	Yes Capacitive	-	-
Memory
Memory Card Slot	-	Yes	Yes	Yes	Yes
Messaging
Email Client	-	n/a	n/a	Yes	n/a
Instant Messaging	-	n/a	n/a	Yes	n/a
MMS	-	n/a	n/a	Yes	n/a
Text Messaging Templates	-	n/a	n/a	Yes	n/a
Music
FM Radio	-	Yes	-	-	-
Headphone Jack (3.5mm)	-	Yes	Yes	-	-
Music Player	-	n/a	n/a	Yes	n/a
Photo & Video
DLNA	-	Yes	-	-	-
Power
Wireless Charging	-	Yes *	-	-	-
Productivity
Alarm	Yes	n/a	n/a	Yes	n/a
Calculator	-	n/a	n/a	Yes	n/a
Calendar	-	n/a	n/a	Yes	n/a
To-Do List	-	n/a	n/a	Yes	n/a
Voice Memo	-	n/a	n/a	Yes	n/a
Software
Games	-	n/a	n/a	Yes	n/a
Java (J2ME)	-	n/a	n/a	Yes	n/a
Voice
HD Voice	-	Yes	-	-	-
Speaker Phone	-	Yes	Yes	Yes	Yes
	* Some versions only
	Ericsson R278d	ZTE Max	Coolpad Defiant	LG Shine CU720	Samsung Jack i637
	X >	< X >	< X >	< X >	< X

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


Phone	Ericsson R278d	ZTE Max	Coolpad Defiant	LG Shine CU720	Samsung Jack i637