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Phone	Motorola V551 / V330 / V547 / V555 / V557	ZTE Z998 / Unico LTE	Sanyo RL-4930	Palm Treo 600 (CDMA)	Nokia N81
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	4.5" diag. 16 : 9	?	?	2.4" diag. 4 : 3
Display Resolution & Type	176 x 220 pixels LCD (TFT/TFD)	540 x 960 pixels (~245 ppi) LCD (TFT/TFD)	128 x 112 pixels LCD (STN)	160 x 160 pixels LCD (Color)	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)
Display Refresh	?	60 Hz	?	?	?
Battery	820 mAh	2,070 mAh	1,700 mAh	?	1,050 mAh
Processor	?	1.2 GHz Qualcomm Snapdragon 400 MSM8930	?	?	369 MHz ARM 11
RAM	?	1 GB	?	?	?
Storage	? raw hardware	4 GB	? raw hardware	? raw hardware	8 GB *
Main Camera	Yes	5 megapixel	-	Yes	2 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	720p HD	-	-	VGA (640 x 480)
Front Camera	-	1 megapixel	-	-	-
Weight	4.23 oz (120g)	4.8 oz (136g)	4.4 oz (125g)	6.2 oz (176g)	4.94 oz (140g)
Dimensions	3.5" x 1.93" x 0.97" (89 x 49 x 24.6 mm)	5.2" x 2.6" x 0.4" (132 x 66 x 10.2 mm)	4.5" x 2" x 1" (114 x 51 x 25.4 mm)	4.41" x 2.36" x 0.87" (112 x 60 x 22.1 mm)	4.02" x 1.97" x 0.7" (102 x 50 x 17.8 mm)
Form Factor	Clamshell	Slab	Slab	Slab	Slide
Platform / OS	(proprietary)	Android	(proprietary)	Palm OS	S60 (Symbian)
Network Bands	GSM: 850, 900, 1800, 1900 *	4G LTE: 2, 4, 5, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 *	CDMA: 850, 1900 AMPS: 850	CDMA: 850, 1900	WCDMA: 1 GSM: 850, 900, 1800, 1900
Data Technology	EDGE	LTE (Cat 3)	1xRTT	1xRTT	EDGE
Features
GPS / Location	-	n/a	Yes	n/a	n/a
Ruggedized	-	-	Yes	-	-
Accessibility
Adjustable Text Size	-	n/a	-	n/a	n/a
Hearing Aid Compatible	-	Yes M3, T4 (very tele-coil compatible)	-	-	-
Multiple Languages	Yes	n/a	Yes	n/a	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	-
Alerts
Extra Display	Yes	-	-	-	-
Ringer Profiles	Yes	-	-	-	Yes
Connectivity
Bluetooth	Yes	Yes	-	-	Yes
Infrared (IR)	-	-	-	Yes	-
Mobile Hotspot	-	n/a	-	n/a	n/a
USB	Yes	Yes Micro-USB	Yes	Yes	Yes Micro-USB
Wi-Fi	-	Yes 4 (802.11 b,g,n)	-	-	Yes 802.11 b,g
Contacts
Picture ID	Yes	n/a	Yes	n/a	n/a
Ringer ID	Yes	n/a	Yes	n/a	n/a
Voice Dialing	Yes	n/a	Yes	n/a	n/a
Customization
Custom Graphics	Yes	n/a	Yes	n/a	n/a
Custom Ringtones	Yes	n/a	Yes	n/a	n/a
Real-Music Ringers	Yes	n/a	-	n/a	n/a
Data & Network
Data Tethering	Yes	n/a	-	n/a	n/a
WAP / Web Browser	Yes	n/a	Yes	n/a	n/a
Input
Predictive Text Entry	Yes	n/a	Yes	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	-	Yes	-
Touch Screen	-	Yes Capacitive	-	Yes	-
Memory
Memory Card Slot	-	Yes	-	Yes	Yes *
Messaging
Email Client	Yes	n/a	-	n/a	n/a
EMS / Picture Messaging	Yes	n/a	-	n/a	n/a
Instant Messaging	Yes	n/a	-	n/a	n/a
MMS	Yes	n/a	-	n/a	n/a
Text Messaging Templates	Yes	n/a	-	n/a	n/a
Music
FM Radio	-	-	-	-	Yes
Headphone Jack (3.5mm)	-	Yes	-	-	Yes
Music Player	-	n/a	-	n/a	n/a
Stereo Speakers	-	-	-	-	Yes
Photo & Video
Video Calling	-	n/a	-	n/a	n/a
Productivity
Alarm	Yes	n/a	Yes	n/a	n/a
Calculator	Yes	n/a	-	n/a	n/a
Calendar	Yes	n/a	Yes	n/a	n/a
To-Do List	-	n/a	Yes	n/a	n/a
Voice Memo	Yes	n/a	Yes	n/a	n/a
Software
Games	Yes	n/a	Yes	n/a	n/a
Java (J2ME)	Yes	n/a	Yes	n/a	n/a
Voice
Call Screening	-	-	Yes	-	-
Headset Jack (2.5 mm)	Yes	n/a	-	n/a	n/a
Push-To-Talk	-	-	Yes	-	Yes *
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Motorola V551 / V330 / V547 / V555 / V557	ZTE Z998 / Unico LTE	Sanyo RL-4930	Palm Treo 600 (CDMA)	Nokia N81
	X >	< X >	< X >	< X >	< X

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


Phone	Motorola V551 / V330 / V547 / V555 / V557	ZTE Z998 / Unico LTE	Sanyo RL-4930	Palm Treo 600 (CDMA)	Nokia N81