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Phone	Palm Treo 600 (CDMA)	Motorola KRZR K1m	ZTE Z331	HTC Shadow	Coolpad Quattro 4G
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	?	2.4" diag. 4 : 3	2.6" diag. 4 : 3	4" diag. 5 : 3
Display Resolution & Type	160 x 160 pixels LCD (Color)	176 x 220 pixels LCD (TFT/TFD)	176 x 220 pixels (~117 ppi) LCD (TFT/TFD)	240 x 320 pixels (~154 ppi) LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	?	60 Hz
Battery	?	880 mAh	950 mAh	920 mAh	1,600 mAh
Processor	?	?	?	200 MHz OMAP 850	?
RAM	?	?	?	?	?
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	512 MB
Main Camera	Yes	1 megapixel	3 megapixel	2 megapixel	3 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	?	QCIF (176 x 144)	?	VGA (640 x 480)
Front Camera	-	-	-	-	Yes
Weight	6.2 oz (176g)	3.63 oz (103g)	4 oz (113g)	5.29 oz (150g)	3.31 oz (94g)
Dimensions	4.41" x 2.36" x 0.87" (112 x 60 x 22.1 mm)	4.06" x 1.73" x 0.67" (103 x 44 x 17 mm)	3.84" x 2.02" x 0.69" (98 x 51 x 17.5 mm)	4.06" x 2.09" x 0.59" (103 x 53 x 15 mm)	4.96" x 2.6" x 0.51" (126 x 66 x 13 mm)
Form Factor	Slab	Clamshell	Clamshell	Slide	Slab
Platform / OS	Palm OS	(proprietary)	(proprietary)	Windows Mobile Standard	Android
Network Bands	CDMA: 850, 1900	CDMA: 850, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	GSM: 850, 900, 1800, 1900	4G LTE: 2, 4 CDMA: 850, 1700, 1900
Data Technology	1xRTT	EVDO r0	HSDPA 3.6	EDGE	LTE (Cat 3)
Features
GPS / Location	n/a	Yes	Yes	n/a	n/a
Accessibility
Hearing Aid Compatible	-	Yes M3 (mostly compatible)	Yes M3, T4 (very tele-coil compatible)	-	Yes M4, T3 (mostly tele-coil compatible)
Multiple Languages	n/a	Yes	Yes	n/a	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	-	Yes
Alerts
Extra Display	-	Yes	Yes	-	-
Ringer Profiles	-	Yes	Yes	Yes	-
Connectivity
Bluetooth	-	Yes	Yes	Yes	Yes
Infrared (IR)	Yes	-	-	-	-
Mobile Hotspot	n/a	-	-	n/a	n/a
USB	Yes	Yes Mini-USB	Yes Micro-USB	Yes Mini-USB	Yes
Wi-Fi	-	-	-	Yes 802.11 b,g	Yes
Contacts
Picture ID	n/a	Yes	Yes	n/a	n/a
Ringer ID	n/a	Yes	Yes	n/a	n/a
Voice Dialing	n/a	Yes	-	n/a	n/a
Customization
Custom Graphics	n/a	Yes	Yes	n/a	n/a
Custom Ringtones	n/a	Yes	Yes	n/a	n/a
Real-Music Ringers	n/a	-	Yes	n/a	n/a
Data & Network
Data Tethering	n/a	Yes	Yes	n/a	n/a
WAP / Web Browser	n/a	Yes	Yes	n/a	n/a
Input
Predictive Text Entry	n/a	Yes	Yes	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	Yes	-	-	Yes	-
Touch Screen	Yes	-	-	-	Yes Capacitive
Memory
Memory Card Slot	Yes	Yes	Yes	Yes	Yes
Messaging
Email Client	n/a	-	Yes	n/a	n/a
EMS / Picture Messaging	n/a	Yes	-	n/a	n/a
Instant Messaging	n/a	Yes *	Yes	n/a	n/a
MMS	n/a	Yes	Yes	n/a	n/a
Text Messaging Templates	n/a	Yes	Yes	n/a	n/a
Music
Headphone Jack (3.5mm)	-	-	-	-	Yes
Music Player	n/a	Yes	Yes	n/a	n/a
Productivity
Alarm	n/a	Yes	Yes	n/a	n/a
Calculator	n/a	Yes	Yes	n/a	n/a
Calendar	n/a	Yes	Yes	n/a	n/a
To-Do List	n/a	-	-	n/a	n/a
Voice Memo	n/a	Yes	Yes	n/a	n/a
Software
BREW	n/a	Yes *	-	n/a	n/a
Games	n/a	Yes	Yes	n/a	n/a
Java (J2ME)	n/a	Yes *	Yes	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
	Palm Treo 600 (CDMA)	Motorola KRZR K1m	ZTE Z331	HTC Shadow	Coolpad Quattro 4G
	X >	< X >	< X >	< X >	< X

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


Phone	Palm Treo 600 (CDMA)	Motorola KRZR K1m	ZTE Z331	HTC Shadow	Coolpad Quattro 4G