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Specifications
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Phone	Samsung SGH-X640	Kyocera Echo	Samsung Galaxy Grand Prime (CDMA)	ZTE Blade Vantage	BlackBerry 7750
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	3.5" diag. 5 : 3	5" diag. 16 : 9	5" diag. 16 : 9	?
Display Resolution & Type	128 x 160 pixels LCD (TFT/TFD)	480 x 800 pixels (~267 ppi) LCD (TFT/TFD)	540 x 960 pixels (~220 ppi) LCD (TFT/TFD)	480 x 854 pixels (~196 ppi) LCD (TFT/TFD)	240 x 240 pixels LCD (Color)
Display Refresh	?	60 Hz	60 Hz	60 Hz	?
Battery	800 mAh	1,370 mAh	2,600 mAh	2,500 mAh	?
Processor	?	1 GHz Qualcomm Snapdragon S1 QSD8650	1.2 GHz Qualcomm Snapdragon 410 (MSM8916)	1.1 GHz Qualcomm Snapdragon 210 (MSM8909)	?
RAM	?	?	1.5 GB	2 GB	?
Storage	? raw hardware	? raw hardware	8 GB	16 GB	? raw hardware
Main Camera	Yes	5 megapixel	8 megapixel	8 megapixel	-
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	720p HD	1080p HD	720p HD	-
Front Camera	-	-	5 megapixel	2 megapixel	-
Weight	3 oz (85g)	6.8 oz (193g)	5.5 oz (156g)	5.29 oz (150g)	5.01 oz (142g)
Dimensions	3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm)	4.53" x 2.22" x 0.68" (115 x 56 x 17.2 mm)	5.7" x 2.84" x 0.34" (145 x 72 x 8.6 mm)	5.73" x 2.85" x 0.36" (146 x 72 x 9.2 mm)	4.76" x 3.03" x 0.71" (121 x 77 x 18 mm)
Form Factor	Clamshell	Slab	Slab	Slab	Slab
Platform / OS	(proprietary)	Android	Android	Android	BlackBerry OS
Network Bands	GSM: 900, 1800, 1900	CDMA: 850, 1900	4G LTE: 2, 4, 5, 12, 25, 26, 41 CDMA: 800, 850, 1900 *	4G LTE: 2, 4, 5, 13	CDMA: 850, 1900
Data Technology	GPRS	EVDO rA	LTE (Cat 4)	LTE (Cat 4)	1xRTT
Features
Flashlight	-	-	Yes	Yes	-
GPS / Location	-	n/a	n/a	n/a	n/a
Accessibility
Adjustable Text Size	-	n/a	n/a	n/a	n/a
Hearing Aid Compatible	-	Yes	Yes	Yes	-
Multiple Languages	Yes	n/a	n/a	n/a	n/a
TTY/TDD (Digital)	-	Yes	Yes	Yes	Yes
Alerts
Ringer Profiles	-	-	-	-	Yes
Connectivity
Bluetooth	-	Yes Classic Audio	Yes Classic Audio	Yes Classic Audio	-
Mobile Hotspot	-	n/a	n/a	n/a	n/a
NFC	-	-	Yes	-	-
USB	-	Yes	Yes Micro-USB	Yes Micro-USB	Yes
Wi-Fi	-	Yes 802.11 b,g	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 b,g,n)	-
Contacts
Picture ID	Yes	n/a	n/a	n/a	n/a
Ringer ID	Yes	n/a	n/a	n/a	n/a
Voice Dialing	-	n/a	n/a	n/a	n/a
Customization
Custom Graphics	Yes	n/a	n/a	n/a	n/a
Custom Ringtones	Yes	n/a	n/a	n/a	n/a
Real-Music Ringers	-	n/a	n/a	n/a	n/a
Data & Network
Data Tethering	-	n/a	n/a	n/a	n/a
WAP / Web Browser	Yes	n/a	n/a	n/a	n/a
Input
Predictive Text Entry	Yes	n/a	n/a	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	-	-	Yes
Touch Screen	-	Yes	Yes	Yes	-
Memory
Memory Card Slot	-	Yes	Yes	Yes	-
Messaging
Email Client	-	n/a	n/a	n/a	n/a
EMS / Picture Messaging	Yes	n/a	n/a	n/a	n/a
Instant Messaging	-	n/a	n/a	n/a	n/a
MMS	Yes	n/a	n/a	n/a	n/a
Text Messaging Templates	Yes	n/a	n/a	n/a	n/a
Music
FM Radio	-	-	Yes	-	-
Headphone Jack (3.5mm)	-	Yes	Yes	Yes	-
Music Player	-	n/a	n/a	n/a	n/a
Productivity
Alarm	Yes	n/a	n/a	n/a	n/a
Calculator	Yes	n/a	n/a	n/a	n/a
Calendar	Yes	n/a	n/a	n/a	n/a
To-Do List	Yes	n/a	n/a	n/a	n/a
Voice Memo	Yes	n/a	n/a	n/a	n/a
Software
Games	Yes	n/a	n/a	n/a	n/a
Java (J2ME)	Yes	n/a	n/a	n/a	n/a
Voice
HD Voice	-	-	Yes	Yes	-
Headset Jack (2.5 mm)	Yes	n/a	n/a	n/a	n/a
Speaker Phone	Yes	Yes	Yes	Yes	-
	Samsung SGH-X640	Kyocera Echo	Samsung Galaxy Grand Prime (CDMA)	ZTE Blade Vantage	BlackBerry 7750
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SGH-X640	Kyocera Echo	Samsung Galaxy Grand Prime (CDMA)	ZTE Blade Vantage	BlackBerry 7750