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Phone	ZTE Blade Vantage	Samsung SGH-A157	Samsung SGH-E640	Samsung SGH-N625	Palm Treo 680
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	5" diag. 16 : 9	1.8" diag. 4 : 3	?	?	?
Display Resolution & Type	480 x 854 pixels (~196 ppi) LCD (TFT/TFD)	128 x 160 pixels (~116 ppi) LCD (TFT/TFD)	176 x 220 pixels LCD (TFT/TFD)	128 x 64 pixels	320 x 320 pixels LCD (TFT/TFD)
Display Refresh	60 Hz	?	?	?	?
Battery	2,500 mAh	800 mAh	800 mAh	?	?
Processor	1.1 GHz Qualcomm Snapdragon 210 (MSM8909)	?	?	?	?
RAM	2 GB	?	?	?	?
Storage	16 GB	256 MB	? raw hardware	? raw hardware	? raw hardware
Main Camera	8 megapixel	-	1 megapixel	-	Yes
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	720p HD	-	QCIF (176 x 144)	-	CIF (352 x 288)
Front Camera	2 megapixel	-	-	-	-
Weight	5.29 oz (150g)	2.99 oz (85g)	3.17 oz (90g)	2.93 oz (83g)	5.5 oz (156g)
Dimensions	5.73" x 2.85" x 0.36" (146 x 72 x 9.2 mm)	3.83" x 1.84" x 0.65" (97 x 47 x 16.5 mm)	3.37" x 1.78" x 0.93" (86 x 45 x 23.6 mm)	3.94" x 1.69" x 0.78" (100 x 43 x 19.8 mm)	4.4" x 2.3" x 0.8" (112 x 58 x 20.3 mm)
Form Factor	Slab	Clamshell	Clamshell	Slab	Slab
Platform / OS	Android	(proprietary)	(proprietary)	(proprietary)	Palm OS
Network Bands	4G LTE: 2, 4, 5, 13	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900	GSM: 900, 1800, 1900	GSM: 900, 1900	GSM: 850, 900, 1800, 1900
Data Technology	LTE (Cat 4)	?	GPRS	-	EDGE
Features
Flashlight	Yes	-	-	-	-
GPS / Location	n/a	Yes	-	-	n/a
Accessibility
Adjustable Text Size	n/a	Yes	-	-	n/a
Hearing Aid Compatible	Yes	Yes	-	-	-
Multiple Languages	n/a	Yes	Yes	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	-	-	Yes
Alerts
Extra Display	-	-	Yes	-	-
Ringer Profiles	-	Yes	-	-	-
Connectivity
Bluetooth	Yes	-	Yes	-	Yes
Infrared (IR)	-	-	-	-	Yes
USB	Yes Micro-USB	Yes Micro-USB	Yes	-	Yes
Wi-Fi	Yes 4 (802.11 b,g,n)	-	-	-	-
Contacts
Picture ID	n/a	Yes	Yes	-	n/a
Ringer ID	n/a	Yes	Yes	Yes	n/a
Voice Dialing	n/a	-	-	Yes	n/a
Customization
Custom Graphics	n/a	Yes	Yes	Yes	n/a
Custom Ringtones	n/a	Yes	Yes	Yes	n/a
Real-Music Ringers	n/a	Yes	Yes	-	n/a
Data & Network
Data Tethering	n/a	-	-	-	n/a
External Antenna Jack	n/a	-	-	-	n/a
WAP / Web Browser	n/a	Yes	Yes	Yes	n/a
Input
Predictive Text Entry	n/a	Yes	Yes	Yes	n/a
Side Keys	Yes	-	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	-	-	Yes
Touch Screen	Yes	-	-	-	Yes
Memory
Memory Card Slot	Yes	-	-	-	Yes
Messaging
Email Client	n/a	-	Yes	-	n/a
EMS / Picture Messaging	n/a	-	Yes	-	n/a
MMS	n/a	Yes	Yes	Yes	n/a
Text Messaging Templates	n/a	Yes	Yes	Yes	n/a
Music
Headphone Jack (3.5mm)	Yes	-	-	-	-
Music Player	n/a	-	Yes	-	n/a
Productivity
Alarm	n/a	Yes	Yes	Yes	n/a
Calculator	n/a	Yes	Yes	Yes	n/a
Calendar	n/a	Yes	Yes	Yes	n/a
To-Do List	n/a	Yes	Yes	Yes	n/a
Voice Memo	n/a	Yes	Yes	Yes	n/a
Software
Games	n/a	-	Yes	Yes	n/a
Java (J2ME)	n/a	-	Yes	-	n/a
Voice
HD Voice	Yes	-	-	-	-
Headset Jack (2.5 mm)	n/a	-	-	Yes	n/a
Speaker Phone	Yes	Yes	Yes	-	Yes
	ZTE Blade Vantage	Samsung SGH-A157	Samsung SGH-E640	Samsung SGH-N625	Palm Treo 680
	X >	< X >	< X >	< X >	< X

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


Phone	ZTE Blade Vantage	Samsung SGH-A157	Samsung SGH-E640	Samsung SGH-N625	Palm Treo 680