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Phone	ZTE Z331	Samsung Freeform M	Samsung Illusion / Proclaim	Pantech Duo C810	BlackBerry 7750
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	2.4" diag. 4 : 3	2.4" diag. 4 : 3	3.5" diag. 5 : 3	2.2" diag. 4 : 3	?
Display Resolution & Type	176 x 220 pixels (~117 ppi) LCD (TFT/TFD)	320 x 240 pixels (~167 ppi) LCD (TFT/TFD)	320 x 480 pixels (~165 ppi) LCD (TFT/TFD)	240 x 320 pixels (~182 ppi) LCD (TFT/TFD)	240 x 240 pixels LCD (Color)
Display Refresh	?	?	60 Hz	?	?
Battery	950 mAh	1,000 mAh	1,500 mAh	1,320 mAh	?
Processor	?	?	?	ARM 920t PXA27x	?
RAM	?	128 MB	?	?	?
Storage	? raw hardware	256 MB	2 GB	? raw hardware	? raw hardware
Main Camera	3 megapixel	2 megapixel	3 megapixel	1 megapixel	-
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	QCIF (176 x 144)	QVGA (320 x 240)	?	QVGA (320 x 240)	-
Front Camera	-	-	-	-	-
Weight	4 oz (113g)	3.56 oz (101g)	4.2 oz (119g)	3.88 oz (110g)	5.01 oz (142g)
Dimensions	3.84" x 2.02" x 0.69" (98 x 51 x 17.5 mm)	4.41" x 2.44" x 0.48" (112 x 62 x 12.2 mm)	4.51" x 2.37" x 0.47" (115 x 60 x 11.9 mm)	4.01" x 1.97" x 0.78" (102 x 50 x 19.8 mm)	4.76" x 3.03" x 0.71" (121 x 77 x 18 mm)
Form Factor	Clamshell	Slab	Slab	Slide	Slab
Platform / OS	(proprietary)	(proprietary)	Android	Windows Mobile Standard	BlackBerry OS
Network Bands	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900
Data Technology	HSDPA 3.6	HSPA 7.2	EVDO rA	HSDPA 1.8	1xRTT
Features
GPS / Location	Yes	Yes	n/a	n/a	n/a
Accessibility
Hearing Aid Compatible	Yes M3, T4 (very tele-coil compatible)	-	Yes M4 (very compatible)	-	-
Multiple Languages	Yes	Yes	n/a	n/a	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	-	Yes
Alerts
Extra Display	Yes	-	-	-	-
Ringer Profiles	Yes	Yes	-	Yes	Yes
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	-
Mobile Hotspot	-	-	n/a	n/a	n/a
USB	Yes Micro-USB	Yes Micro-USB	Yes Micro-USB	Yes	Yes
Wi-Fi	-	Yes 802.11 b,g	Yes 4 (802.11 a,b,g,n)	-	-
Contacts
Picture ID	Yes	Yes	n/a	n/a	n/a
Ringer ID	Yes	Yes	n/a	n/a	n/a
Voice Dialing	-	Yes	n/a	n/a	n/a
Customization
Custom Graphics	Yes	Yes	n/a	n/a	n/a
Custom Ringtones	Yes	Yes	n/a	n/a	n/a
Real-Music Ringers	Yes	Yes	n/a	n/a	n/a
Data & Network
Data Tethering	Yes	-	n/a	n/a	n/a
WAP / Web Browser	Yes	Yes	n/a	n/a	n/a
Input
Predictive Text Entry	Yes	Yes	n/a	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	Yes	-	Yes	Yes
Touch Screen	-	-	Yes Capacitive	-	-
Memory
Memory Card Slot	Yes	Yes	Yes	Yes	-
Messaging
Email Client	Yes	Yes	n/a	n/a	n/a
Instant Messaging	Yes	-	n/a	n/a	n/a
MMS	Yes	Yes	n/a	n/a	n/a
Text Messaging Templates	Yes	Yes	n/a	n/a	n/a
Music
Headphone Jack (3.5mm)	-	Yes	Yes	-	-
Music Player	Yes	Yes	n/a	n/a	n/a
Photo & Video
DLNA	-	-	Yes	-	-
Productivity
Alarm	Yes	Yes	n/a	n/a	n/a
Calculator	Yes	Yes	n/a	n/a	n/a
Calendar	Yes	Yes	n/a	n/a	n/a
To-Do List	-	Yes	n/a	n/a	n/a
Voice Memo	Yes	Yes	n/a	n/a	n/a
Software
Games	Yes	Yes	n/a	n/a	n/a
Java (J2ME)	Yes	Yes	n/a	n/a	n/a
Voice
Headset Jack (2.5 mm)	-	-	n/a	n/a	n/a
Speaker Phone	Yes	Yes	Yes	Yes	-
	ZTE Z331	Samsung Freeform M	Samsung Illusion / Proclaim	Pantech Duo C810	BlackBerry 7750
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NOTE: Differences are highlighted with bold / black text for visual clarity only.


Phone	ZTE Z331	Samsung Freeform M	Samsung Illusion / Proclaim	Pantech Duo C810	BlackBerry 7750