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Phone	Samsung SGH-X640	ZTE Blade Z Max	Motorola V551 / V330 / V547 / V555 / V557	Motorola Flipout	Samsung Galaxy Attain 4G
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	6" diag. 16 : 9	?	2.8" diag. 4 : 3	3.5" diag. 5 : 3
Display Resolution & Type	128 x 160 pixels LCD (TFT/TFD)	1080 x 1920 pixels (~367 ppi) LCD (TFT/TFD)	176 x 220 pixels LCD (TFT/TFD)	320 x 240 pixels (~143 ppi) LCD (TFT/TFD)	320 x 480 pixels (~165 ppi) LCD (TFT/TFD)
Display Refresh	?	60 Hz	?	60 Hz	60 Hz
Battery	800 mAh	4,080 mAh	820 mAh	1,170 mAh	1,650 mAh
Processor	?	1.4 GHz Qualcomm Snapdragon 435 (MSM8940)	?	720 MHz TI OMAP 3410	?
RAM	?	2 GB	?	?	512 MB
Storage	? raw hardware	32 GB	? raw hardware	? raw hardware	? raw hardware
Main Camera	Yes	16 megapixel	Yes	3 megapixel	3 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	1080p HD	?	CIF (352 x 288)	WVGA / 480p
Front Camera	-	8 megapixel	-	-	1 megapixel
Weight	3 oz (85g)	6.58 oz (186g)	4.23 oz (120g)	4.23 oz (120g)	4.2 oz (119g)
Dimensions	3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm)	6.51" x 3.28" x 0.33" (165 x 83 x 8.3 mm)	3.5" x 1.93" x 0.97" (89 x 49 x 24.6 mm)	2.64" x 2.64" x 0.67" (67 x 67 x 17 mm)	4.57" x 2.38" x 0.46" (116 x 60 x 11.7 mm)
Form Factor	Clamshell	Slab	Clamshell	Swivel	Slab
Platform / OS	(proprietary)	Android	(proprietary)	Android	Android
Network Bands	GSM: 900, 1800, 1900	4G LTE: 2, 4, 5, 12, 66 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900	GSM: 850, 900, 1800, 1900 *	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 *	4G LTE: 2, 4 CDMA: 850, 1700, 1900
Data Technology	GPRS	LTE (Cat 6)	EDGE	HSPA 7.2	LTE (Cat 3)
Features
Fingerprint Reader	-	Yes stand-alone	-	-	-
Flashlight	-	Yes	-	-	-
GPS / Location	-	n/a	-	n/a	n/a
Accessibility
Hearing Aid Compatible	-	Yes M4, T3 (mostly tele-coil compatible)	-	Yes M3, T4 (very tele-coil compatible)	Yes M4, T3 (mostly tele-coil compatible)
Multiple Languages	Yes	n/a	Yes	n/a	n/a
TTY/TDD (Digital)	-	Yes	Yes	-	Yes
Alerts
Extra Display	-	-	Yes	-	-
Ringer Profiles	-	-	Yes	-	-
Connectivity
Bluetooth	-	Yes	Yes	Yes	Yes
USB	-	Yes USB Type C	Yes	Yes Micro-USB	Yes Micro-USB
Wi-Fi	-	Yes 4 (802.11 b,g,n)	-	Yes 802.11 b,g	Yes
Contacts
Picture ID	Yes	n/a	Yes	n/a	n/a
Ringer ID	Yes	n/a	Yes	n/a	n/a
Voice Dialing	-	n/a	Yes	n/a	n/a
Customization
Custom Graphics	Yes	n/a	Yes	n/a	n/a
Custom Ringtones	Yes	n/a	Yes	n/a	n/a
Real-Music Ringers	-	n/a	Yes	n/a	n/a
Data & Network
Data Tethering	-	n/a	Yes	n/a	n/a
WAP / Web Browser	Yes	n/a	Yes	n/a	n/a
Input
Predictive Text Entry	Yes	n/a	Yes	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	-	Yes	-
Touch Screen	-	Yes Capacitive	-	Yes Capacitive	Yes Capacitive
Memory
Memory Card Slot	-	Yes	-	Yes	Yes
Messaging
Email Client	-	n/a	Yes	n/a	n/a
EMS / Picture Messaging	Yes	n/a	Yes	n/a	n/a
Instant Messaging	-	n/a	Yes	n/a	n/a
MMS	Yes	n/a	Yes	n/a	n/a
Text Messaging Templates	Yes	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	n/a
Photo & Video
DLNA	-	-	-	-	Yes
Power
Fast Charging	-	Yes	-	-	-
Productivity
Alarm	Yes	n/a	Yes	n/a	n/a
Calculator	Yes	n/a	Yes	n/a	n/a
Calendar	Yes	n/a	Yes	n/a	n/a
To-Do List	Yes	n/a	-	n/a	n/a
Voice Memo	Yes	n/a	Yes	n/a	n/a
Software
Games	Yes	n/a	Yes	n/a	n/a
Java (J2ME)	Yes	n/a	Yes	n/a	n/a
Voice
HD Voice	-	Yes	-	-	-
Headset Jack (2.5 mm)	Yes	n/a	Yes	n/a	n/a
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	Samsung SGH-X640	ZTE Blade Z Max	Motorola V551 / V330 / V547 / V555 / V557	Motorola Flipout	Samsung Galaxy Attain 4G
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SGH-X640	ZTE Blade Z Max	Motorola V551 / V330 / V547 / V555 / V557	Motorola Flipout	Samsung Galaxy Attain 4G