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Phone	ZTE Z331	Palm Treo 680	Cal-Comp EZ	Nokia 6170	Samsung Galaxy Grand Prime (CDMA)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	2.4" diag. 4 : 3	?	?	?	5" diag. 16 : 9
Display Resolution & Type	176 x 220 pixels (~117 ppi) LCD (TFT/TFD)	320 x 320 pixels LCD (TFT/TFD)	128 x 128 pixels LCD (STN)	128 x 160 pixels LCD (TFT/TFD)	540 x 960 pixels (~220 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	?	60 Hz
Battery	950 mAh	?	800 mAh	760 mAh	2,600 mAh
Processor	?	?	?	?	1.2 GHz Qualcomm Snapdragon 410 (MSM8916)
RAM	?	?	?	?	1.5 GB
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	8 GB
Main Camera	3 megapixel	Yes	-	Yes	8 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	QCIF (176 x 144)	CIF (352 x 288)	-	?	1080p HD
Front Camera	-	-	-	-	5 megapixel
Weight	4 oz (113g)	5.5 oz (156g)	2.47 oz (70g)	4.34 oz (123g)	5.5 oz (156g)
Dimensions	3.84" x 2.02" x 0.69" (98 x 51 x 17.5 mm)	4.4" x 2.3" x 0.8" (112 x 58 x 20.3 mm)	4.04" x 1.71" x 0.63" (103 x 43 x 16 mm)	3.46" x 1.81" x 0.94" (88 x 46 x 23.9 mm)	5.7" x 2.84" x 0.34" (145 x 72 x 8.6 mm)
Form Factor	Clamshell	Slab	Slab	Clamshell	Slab
Platform / OS	(proprietary)	Palm OS	(proprietary)	(proprietary)	Android
Network Bands	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	GSM: 850, 1800, 1900 *	4G LTE: 2, 4, 5, 12, 25, 26, 41 CDMA: 800, 850, 1900 *
Data Technology	HSDPA 3.6	EDGE	1xRTT	EDGE	LTE (Cat 4)
Features
Flashlight	-	-	-	-	Yes
GPS / Location	Yes	n/a	Yes	-	n/a
Accessibility
Adjustable Text Size	-	n/a	-	-	n/a
Hearing Aid Compatible	Yes M3, T4 (very tele-coil compatible)	-	-	-	Yes M4, T4 (very tele-coil compatible)
Multiple Languages	Yes	n/a	Yes	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	-	Yes	Yes
Alerts
Extra Display	Yes	-	-	Yes	-
Ringer Profiles	Yes	-	-	Yes	-
Connectivity
Bluetooth	Yes	Yes	-	-	Yes
Infrared (IR)	-	Yes	-	Yes	-
Mobile Hotspot	-	n/a	-	-	n/a
NFC	-	-	-	-	Yes
USB	Yes Micro-USB	Yes	Yes Mini-USB	Yes	Yes Micro-USB
Wi-Fi	-	-	-	-	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	Yes	n/a	-	Yes	n/a
Ringer ID	Yes	n/a	-	-	n/a
Voice Dialing	-	n/a	-	Yes	n/a
Customization
Custom Graphics	Yes	n/a	-	Yes	n/a
Custom Ringtones	Yes	n/a	-	Yes	n/a
Real-Music Ringers	Yes	n/a	-	-	n/a
Data & Network
Data Tethering	Yes	n/a	-	Yes	n/a
External Antenna Jack	-	n/a	-	-	n/a
WAP / Web Browser	Yes	n/a	-	Yes	n/a
Input
Predictive Text Entry	Yes	n/a	-	Yes	n/a
Side Keys	Yes	Yes	-	Yes	Yes
Text Keyboard, Hardware	-	Yes	-	-	-
Touch Screen	-	Yes	-	-	Yes Capacitive
Memory
Memory Card Slot	Yes	Yes	-	-	Yes
Messaging
Email Client	Yes	n/a	-	Yes	n/a
EMS / Picture Messaging	-	n/a	-	Yes	n/a
Instant Messaging	Yes	n/a	-	Yes	n/a
MMS	Yes	n/a	-	Yes	n/a
Text Messaging Templates	Yes	n/a	Yes	Yes	n/a
Music
FM Radio	-	-	-	-	Yes
Headphone Jack (3.5mm)	-	-	-	-	Yes
Music Player	Yes	n/a	-	-	n/a
Productivity
Alarm	Yes	n/a	Yes	Yes	n/a
Calculator	Yes	n/a	Yes	Yes	n/a
Calendar	Yes	n/a	Yes	Yes	n/a
To-Do List	-	n/a	Yes	Yes	n/a
Voice Memo	Yes	n/a	Yes *	Yes	n/a
Software
Games	Yes	n/a	-	Yes	n/a
Java (J2ME)	Yes	n/a	-	Yes	n/a
Voice
HD Voice	-	-	-	-	Yes
Headset Jack (2.5 mm)	-	n/a	Yes	-	n/a
Push-To-Talk	-	-	-	Yes	-
Speaker Phone	Yes	Yes	-	Yes	Yes
	* Some versions only
	ZTE Z331	Palm Treo 680	Cal-Comp EZ	Nokia 6170	Samsung Galaxy Grand Prime (CDMA)
	X >	< X >	< X >	< X >	< X

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


Phone	ZTE Z331	Palm Treo 680	Cal-Comp EZ	Nokia 6170	Samsung Galaxy Grand Prime (CDMA)