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Phone	ZTE Z222 / Z223	Motorola V551 / V330 / V547 / V555 / V557	HTC HD7 / HD7S	ZTE Savvy	Samsung SCH-A645
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. 5 : 3	4" diag. 5 : 3	?
Display Resolution & Type	176 x 220 pixels (~141 ppi) LCD (TFT/TFD)	176 x 220 pixels LCD (TFT/TFD)	480 x 800 pixels (~217 ppi) LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) LCD (TFT/TFD)	128 x 160 pixels LCD (STN)
Display Refresh	?	?	?	60 Hz	?
Battery	900 mAh	820 mAh	1,230 mAh	1,650 mAh	1,000 mAh
Processor	QSC6270	?	1 GHz Qualcomm Snapdragon S1 QSD8250	1 GHz Qualcomm MSM8625	?
RAM	64 MB	?	?	768 MB	?
Storage	128 MB	? raw hardware	16 GB	4 GB	? raw hardware
Main Camera	Yes	Yes	5 megapixel	5 megapixel	-
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	?	720p HD	WVGA / 480p	-
Front Camera	-	-	-	-	-
Weight	3.24 oz (92g)	4.23 oz (120g)	5.71 oz (162g)	4.43 oz (126g)	3.2 oz (91g)
Dimensions	3.76" x 1.92" x 0.73" (96 x 49 x 18.5 mm)	3.5" x 1.93" x 0.97" (89 x 49 x 24.6 mm)	4.8" x 2.7" x 0.44" (122 x 69 x 11.2 mm)	4.96" x 2.55" x 0.42" (126 x 65 x 10.7 mm)	3.54" x 1.79" x 0.94" (90 x 45 x 23.9 mm)
Form Factor	Clamshell	Clamshell	Slab	Slab	Clamshell
Platform / OS	(proprietary)	(proprietary)	Windows	Android	(proprietary)
Network Bands	WCDMA: 2, 5 GSM: 850, 1900	GSM: 850, 900, 1800, 1900 *	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900 *	CDMA: 850, 1900	CDMA: 850, 1900 AMPS: 850
Data Technology	HSDPA 3.6	EDGE	HSPA 7.2	EVDO rA	1xRTT
Features
Flashlight	-	-	-	Yes	-
GPS / Location	-	-	n/a	n/a	Yes
Accessibility
Adjustable Text Size	-	-	n/a	n/a	-
Hearing Aid Compatible	Yes M3, T3 (mostly tele-coil compatible)	-	-	Yes M4, T4 (very tele-coil compatible)	Yes M3 (mostly compatible)
Multiple Languages	Yes	Yes	n/a	n/a	Yes
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	Yes
Alerts
Extra Display	Yes	Yes	-	-	Yes
Ringer Profiles	Yes	Yes	-	-	-
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	-
USB	Yes Micro-USB	Yes	Yes Micro-USB	Yes Micro-USB	-
Wi-Fi	-	-	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 b,g,n)	-
Contacts
Picture ID	Yes	Yes	n/a	n/a	Yes
Ringer ID	Yes	Yes	n/a	n/a	-
Voice Dialing	-	Yes	n/a	n/a	Yes
Customization
Custom Graphics	Yes	Yes	n/a	n/a	Yes
Custom Ringtones	Yes	Yes	n/a	n/a	Yes
Real-Music Ringers	Yes	Yes	n/a	n/a	-
Data & Network
Data Tethering	-	Yes	n/a	n/a	-
WAP / Web Browser	Yes	Yes	n/a	n/a	Yes *
Input
Predictive Text Entry	Yes	Yes	n/a	n/a	Yes
Side Keys	Yes	Yes	Yes	Yes	Yes
Touch Screen	-	-	Yes Capacitive	Yes Capacitive	-
Memory
Memory Card Slot	-	-	-	Yes	-
Messaging
Email Client	Yes	Yes	n/a	n/a	-
EMS / Picture Messaging	-	Yes	n/a	n/a	Yes
Instant Messaging	-	Yes	n/a	n/a	-
MMS	Yes	Yes	n/a	n/a	-
Text Messaging Templates	Yes	Yes	n/a	n/a	Yes
Music
FM Radio	Yes *	-	Yes	-	-
Headphone Jack (3.5mm)	-	-	Yes	Yes	-
Music Player	-	-	n/a	n/a	-
Stereo Speakers	-	-	Yes	-	-
Photo & Video
DLNA	-	-	-	Yes	-
Productivity
Alarm	Yes	Yes	n/a	n/a	Yes
Calculator	Yes	Yes	n/a	n/a	Yes
Calendar	Yes	Yes	n/a	n/a	Yes
To-Do List	-	-	n/a	n/a	Yes
Voice Memo	Yes	Yes	n/a	n/a	Yes
Software
BREW	-	-	n/a	n/a	Yes *
Games	Yes	Yes	n/a	n/a	Yes *
Java (J2ME)	Yes	Yes	n/a	n/a	-
Voice
Headset Jack (2.5 mm)	-	Yes	n/a	n/a	Yes
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	ZTE Z222 / Z223	Motorola V551 / V330 / V547 / V555 / V557	HTC HD7 / HD7S	ZTE Savvy	Samsung SCH-A645
	X >	< X >	< X >	< X >	< X

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


Phone	ZTE Z222 / Z223	Motorola V551 / V330 / V547 / V555 / V557	HTC HD7 / HD7S	ZTE Savvy	Samsung SCH-A645