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Phone	ZTE Z222 / Z223	Samsung SGH-E640	Palm Treo 650 (GSM)	HTC EVO V 4G / EVO 3D (CDMA)	HTC SDA (USA) / SP5m (Tornado)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	2" diag. 4 : 3	?	?	4.3" diag. 16 : 9	2.2" diag. 4 : 3
Display Resolution & Type	176 x 220 pixels (~141 ppi) LCD (TFT/TFD)	176 x 220 pixels LCD (TFT/TFD)	320 x 320 pixels LCD (TFT/TFD)	540 x 960 pixels (~256 ppi) LCD (TFT/TFD)	240 x 320 pixels (~182 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	60 Hz	?
Battery	900 mAh	800 mAh	?	1,730 mAh	?
Processor	QSC6270	?	312 MHz Intel XScale PXA270	1.2 GHz Qualcomm Snapdragon S3 MSM8660 (dual-core)	?
RAM	64 MB	?	?	?	?
Storage	128 MB	? raw hardware	? raw hardware	? raw hardware	? raw hardware
Main Camera	Yes	1 megapixel	Yes	5 megapixel	1 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	QCIF (176 x 144)	CIF (352 x 288)	720p HD	QCIF (176 x 144)
Front Camera	-	-	-	1 megapixel	-
Weight	3.24 oz (92g)	3.17 oz (90g)	6.3 oz (179g)	6 oz (170g)	3.74 oz (106g)
Dimensions	3.76" x 1.92" x 0.73" (96 x 49 x 18.5 mm)	3.37" x 1.78" x 0.93" (86 x 45 x 23.6 mm)	4.4" x 2.3" x 0.9" (112 x 58 x 22.9 mm)	4.96" x 2.56" x 0.47" (126 x 65 x 11.9 mm)	4.53" x 1.82" x 0.69" (115 x 46 x 17.5 mm)
Form Factor	Clamshell	Clamshell	Slab	Slab	Slab
Platform / OS	(proprietary)	(proprietary)	Palm OS	Android	Windows Mobile Standard
Network Bands	WCDMA: 2, 5 GSM: 850, 1900	GSM: 900, 1800, 1900	GSM: 850, 900, 1800, 1900	4G WiMAX: 41 CDMA: 800, 850, 1900	GSM: 850, 900, 1800, 1900
Data Technology	HSDPA 3.6	GPRS	EDGE	WiMAX	EDGE
Features
GPS / Location	-	-	n/a	n/a	n/a
Accessibility
Hearing Aid Compatible	Yes	-	-	-	-
Multiple Languages	Yes	Yes	n/a	n/a	n/a
TTY/TDD (Digital)	Yes	-	-	Yes	Yes
Alerts
Extra Display	Yes	Yes	-	-	-
Ringer Profiles	Yes	-	-	-	Yes
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
Infrared (IR)	-	-	Yes	-	Yes
Mobile Hotspot	-	-	n/a	n/a	n/a
USB	Yes Micro-USB	Yes	Yes	Yes Micro-USB	Yes Mini-USB
Wi-Fi	-	-	-	Yes 4 (802.11 b,g,n)	Yes
Contacts
Picture ID	Yes	Yes	n/a	n/a	n/a
Ringer ID	Yes	Yes	n/a	n/a	n/a
Voice Dialing	-	-	n/a	n/a	n/a
Customization
Custom Graphics	Yes	Yes	n/a	n/a	n/a
Custom Ringtones	Yes	Yes	n/a	n/a	n/a
Real-Music Ringers	Yes	Yes	n/a	n/a	n/a
Data & Network
Data Tethering	-	-	n/a	n/a	n/a
External Antenna Jack	-	-	n/a	n/a	n/a
WAP / Web Browser	Yes	Yes	n/a	n/a	n/a
Input
Predictive Text Entry	Yes	Yes	n/a	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	Yes	-	-
Touch Screen	-	-	Yes	Yes	-
Memory
Memory Card Slot	-	-	Yes	Yes	Yes
Messaging
Email Client	Yes	Yes	n/a	n/a	n/a
EMS / Picture Messaging	-	Yes	n/a	n/a	n/a
Instant Messaging	-	-	n/a	n/a	n/a
MMS	Yes	Yes	n/a	n/a	n/a
Text Messaging Templates	Yes	Yes	n/a	n/a	n/a
Music
FM Radio	Yes *	-	-	Yes	-
Headphone Jack (3.5mm)	-	-	-	Yes	-
Music Player	-	Yes	n/a	n/a	n/a
Photo & Video
DLNA	-	-	-	Yes	-
TV Output	-	-	-	Yes	-
Productivity
Alarm	Yes	Yes	n/a	n/a	n/a
Calculator	Yes	Yes	n/a	n/a	n/a
Calendar	Yes	Yes	n/a	n/a	n/a
To-Do List	-	Yes	n/a	n/a	n/a
Voice Memo	Yes	Yes	n/a	n/a	n/a
Software
Games	Yes	Yes	n/a	n/a	n/a
Java (J2ME)	Yes	Yes	n/a	n/a	n/a
Voice
Headset Jack (2.5 mm)	-	-	n/a	n/a	n/a
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	ZTE Z222 / Z223	Samsung SGH-E640	Palm Treo 650 (GSM)	HTC EVO V 4G / EVO 3D (CDMA)	HTC SDA (USA) / SP5m (Tornado)
	X >	< X >	< X >	< X >	< X

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


Phone	ZTE Z222 / Z223	Samsung SGH-E640	Palm Treo 650 (GSM)	HTC EVO V 4G / EVO 3D (CDMA)	HTC SDA (USA) / SP5m (Tornado)