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Phone	ZTE Prelude / Avail 2	ZTE F160	Motorola V170 / V171 / V173	Samsung Galaxy S II / SGH-i777	Motorola V551 / V330 / V547 / V555 / V557
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	3.5" diag. 5 : 3	2.4" diag. 4 : 3	?	4.3" diag. 5 : 3	?
Display Resolution & Type	320 x 480 pixels (~165 ppi) LCD (TFT/TFD)	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)	98 x 67 pixels LCD (STN)	480 x 800 pixels (~217 ppi) AMOLED	176 x 220 pixels LCD (TFT/TFD)
Display Refresh	60 Hz	?	?	60 Hz	?
Battery	1,500 mAh	900 mAh	920 mAh	1,650 mAh	820 mAh
Processor	1 GHz Qualcomm Snapdragon MSM7225A	?	?	1.2 GHz Samsung Exynos dual-core	?
RAM	512 MB	?	?	?	?
Storage	4 GB	? raw hardware	? raw hardware	16 GB	? raw hardware
Main Camera	2 megapixel	3 megapixel	-	8 megapixel	Yes
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	VGA (640 x 480)	QCIF (176 x 144)	-	1080p HD	?
Front Camera	-	-	-	2 megapixel	-
Weight	4.4 oz (125g)	2.96 oz (84g)	3.14 oz (89g)	4.3 oz (122g)	4.23 oz (120g)
Dimensions	4.6" x 2.44" x 0.45" (117 x 62 x 11.4 mm)	4.57" x 1.93" x 0.44" (116 x 49 x 11.2 mm)	3.43" x 1.8" x 0.93" (87 x 46 x 23.6 mm)	4.96" x 2.6" x 0.35" (126 x 66 x 8.9 mm)	3.5" x 1.93" x 0.97" (89 x 49 x 24.6 mm)
Form Factor	Slab	Slab	Clamshell	Slab	Clamshell
Platform / OS	Android	(proprietary)	(proprietary)	Android	(proprietary)
Network Bands	WCDMA: 2, 5 GSM: 850, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	GSM: 850, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	GSM: 850, 900, 1800, 1900 *
Data Technology	HSPA 7.2	HSDPA 3.6	GPRS	HSPA+ 21	EDGE
Features
GPS / Location	n/a	Yes	-	n/a	-
Accessibility
Adjustable Text Size	n/a	-	-	n/a	-
Hearing Aid Compatible	Yes M3, T4 (very tele-coil compatible)	Yes M3, T3 (mostly tele-coil compatible)	-	Yes M3 (mostly compatible)	-
Multiple Languages	n/a	Yes	Yes	n/a	Yes
TTY/TDD (Digital)	Yes	Yes	-	Yes	Yes
Alerts
Extra Display	-	-	-	-	Yes
Ringer Profiles	-	Yes	Yes	-	Yes
Connectivity
Bluetooth	Yes	Yes	-	Yes	Yes
Mobile Hotspot	n/a	-	-	n/a	-
NFC	-	-	-	Yes	-
USB	Yes	Yes Micro-USB	-	Yes Micro-USB	Yes
Wi-Fi	Yes 4 (802.11 b,g,n)	-	-	Yes 4 (802.11 a,b,g,n)	-
Contacts
Picture ID	n/a	-	-	n/a	Yes
Ringer ID	n/a	Yes	-	n/a	Yes
Voice Dialing	n/a	-	-	n/a	Yes
Customization
Custom Graphics	n/a	Yes	Yes	n/a	Yes
Custom Ringtones	n/a	Yes	Yes	n/a	Yes
Real-Music Ringers	n/a	Yes	-	n/a	Yes
Data & Network
Data Tethering	n/a	-	-	n/a	Yes
WAP / Web Browser	n/a	Yes	Yes	n/a	Yes
Input
Predictive Text Entry	n/a	Yes	Yes	n/a	Yes
Side Keys	Yes	Yes	-	Yes	Yes
Touch Screen	Yes Capacitive	-	-	Yes Capacitive	-
Memory
Memory Card Slot	Yes	Yes	-	Yes	-
Messaging
Email Client	n/a	-	-	n/a	Yes
EMS / Picture Messaging	n/a	-	Yes	n/a	Yes
Instant Messaging	n/a	Yes	Yes	n/a	Yes
MMS	n/a	Yes	-	n/a	Yes
Text Messaging Templates	n/a	Yes	Yes	n/a	Yes
Music
Headphone Jack (3.5mm)	Yes	Yes	-	Yes	-
Music Player	n/a	Yes	-	n/a	-
Photo & Video
DLNA	-	-	-	Yes	-
TV Output	-	-	-	Yes	-
Productivity
Alarm	n/a	Yes	Yes	n/a	Yes
Calculator	n/a	Yes	Yes	n/a	Yes
Calendar	n/a	Yes	-	n/a	Yes
Voice Memo	n/a	Yes	-	n/a	Yes
Software
Games	n/a	Yes	Yes	n/a	Yes
Java (J2ME)	n/a	Yes	-	n/a	Yes
Voice
Headset Jack (2.5 mm)	n/a	-	-	n/a	Yes
Speaker Phone	Yes	Yes	-	Yes	Yes
	ZTE Prelude / Avail 2	ZTE F160	Motorola V170 / V171 / V173	Samsung Galaxy S II / SGH-i777	Motorola V551 / V330 / V547 / V555 / V557
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NOTE: Differences are highlighted with bold / black text for visual clarity only.


Phone	ZTE Prelude / Avail 2	ZTE F160	Motorola V170 / V171 / V173	Samsung Galaxy S II / SGH-i777	Motorola V551 / V330 / V547 / V555 / V557