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Phone	ZTE Anthem 4G	Samsung Galaxy S II, Epic 4G Touch	Nokia 6650 fold	Sony Ericsson Z550a	Palm Treo 650 (CDMA)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	4.3" diag. 5 : 3	4.5" diag. 5 : 3	2.2" diag. 4 : 3	1.9" diag. 4 : 3	?
Display Resolution & Type	480 x 800 pixels (~217 ppi) LCD (TFT/TFD)	480 x 800 pixels (~206 ppi) AMOLED	240 x 320 pixels (~182 ppi) LCD (TFT/TFD)	176 x 220 pixels (~148 ppi) LCD (TFT/TFD)	320 x 320 pixels LCD (TFT/TFD)
Display Refresh	60 Hz	60 Hz	?	?	?
Battery	1,780 mAh	1,800 mAh	1,500 mAh	?	?
Processor	1.2 GHz Qualcomm Snapdragon	1.2 GHz Samsung Exynos C210 dual-core	369 MHz ARM 11	?	312 MHz Intel XScale PXA270
RAM	512 MB	?	?	?	?
Storage	4 GB	16 GB	? raw hardware	? raw hardware	? raw hardware
Main Camera	5 megapixel	8 megapixel	2 megapixel	1 megapixel	Yes
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	1080p HD	1080p HD	QVGA (320 x 240)	?	QVGA (320 x 240)
Front Camera	Yes	2 megapixel	-	-	-
Weight	6.7 oz (190g)	4.55 oz (129g)	3.95 oz (112g)	3.26 oz (92g)	6.3 oz (179g)
Dimensions	5.12" x 2.68" x 0.54" (130 x 68 x 13.7 mm)	5.1" x 2.7" x 0.38" (130 x 69 x 9.6 mm)	3.93" x 1.86" x 0.64" (100 x 47 x 16.2 mm)	3.43" x 1.77" x 0.79" (87 x 45 x 20.1 mm)	4.4" x 2.3" x 0.9" (112 x 58 x 22.9 mm)
Form Factor	Slab	Slab	Clamshell	Clamshell	Slab
Platform / OS	Android	Android	S60 (Symbian)	(proprietary)	Palm OS
Network Bands	4G LTE: 2, 4 CDMA: 850, 1700, 1900	4G WiMAX: 41 CDMA: 800, 850, 1900 *	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 *	GSM: 850, 900, 1800, 1900 *	CDMA: 850, 1900
Data Technology	LTE (Cat 3)	WiMAX	HSDPA 3.6	GPRS	1xRTT
Features
GPS / Location	n/a	n/a	n/a	-	n/a
Accessibility
Hearing Aid Compatible	Yes	Yes	Yes	-	-
Multiple Languages	n/a	n/a	n/a	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	-	Yes	-
Alerts
Extra Display	-	-	Yes	Yes	-
Ringer Profiles	-	-	Yes	Yes	-
Connectivity
Bluetooth	Yes Classic Audio	Yes Classic Audio	Yes Classic Audio	Yes	Yes Classic Audio
Infrared (IR)	-	-	-	-	Yes
Mobile Hotspot	n/a	n/a	n/a	-	n/a
USB	Yes Micro-USB	Yes Micro-USB	Yes Micro-USB	Yes	-
Wi-Fi	Yes	Yes 4 (802.11 a,b,g,n)	-	-	-
Contacts
Picture ID	n/a	n/a	n/a	Yes	n/a
Ringer ID	n/a	n/a	n/a	Yes	n/a
Voice Dialing	n/a	n/a	n/a	Yes	n/a
Customization
Custom Graphics	n/a	n/a	n/a	Yes	n/a
Custom Ringtones	n/a	n/a	n/a	Yes	n/a
Real-Music Ringers	n/a	n/a	n/a	Yes	n/a
Data & Network
Data Tethering	n/a	n/a	n/a	Yes	n/a
WAP / Web Browser	n/a	n/a	n/a	Yes	n/a
Input
Predictive Text Entry	n/a	n/a	n/a	Yes	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	Yes	Yes
Messaging
Email Client	n/a	n/a	n/a	Yes	n/a
Instant Messaging	n/a	n/a	n/a	-	n/a
MMS	n/a	n/a	n/a	Yes	n/a
Text Messaging Templates	n/a	n/a	n/a	Yes	n/a
Music
FM Radio	-	-	-	Yes	-
Headphone Jack (3.5mm)	Yes	Yes	-	-	-
Music Player	n/a	n/a	n/a	Yes	n/a
Photo & Video
DLNA	-	Yes	-	-	-
TV Output	Yes	Yes	-	-	-
Productivity
Alarm	n/a	n/a	n/a	Yes	n/a
Calculator	n/a	n/a	n/a	Yes	n/a
Calendar	n/a	n/a	n/a	Yes	n/a
To-Do List	n/a	n/a	n/a	Yes	n/a
Voice Memo	n/a	n/a	n/a	Yes	n/a
Software
Games	n/a	n/a	n/a	Yes	n/a
Java (J2ME)	n/a	n/a	n/a	Yes	n/a
Voice
Headset Jack (2.5 mm)	n/a	n/a	n/a	-	n/a
Push-To-Talk	-	-	-	Yes *	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	ZTE Anthem 4G	Samsung Galaxy S II, Epic 4G Touch	Nokia 6650 fold	Sony Ericsson Z550a	Palm Treo 650 (CDMA)
	X >	< X >	< X >	< X >	< X

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


Phone	ZTE Anthem 4G	Samsung Galaxy S II, Epic 4G Touch	Nokia 6650 fold	Sony Ericsson Z550a	Palm Treo 650 (CDMA)