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Phone	Pantech Matrix Pro C820	Samsung SGH-A157	Alcatel Pop Star	Nokia N73
Current U.S. Carriers	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released
Display Size	2.4" diag. 4 : 3	1.8" diag. 4 : 3	4" diag. 5 : 3	?
Display Resolution & Type	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)	128 x 160 pixels (~116 ppi) LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)
Display Refresh	?	?	60 Hz	?
Battery	1,320 mAh	800 mAh	2,000 mAh	1,100 mAh
Processor	528 MHz ARM 11	?	1.2 GHz Qualcomm Snapdragon 400 (MSM8926)	?
RAM	?	?	1 GB	?
Storage	? raw hardware	256 MB	4 GB	? raw hardware
Main Camera	2 megapixel	-	5 megapixel	3 megapixel
Wide Camera	-	-	-	-
Tele Camera	-	-	-	-
Video Capture	QCIF (176 x 144)	-	1080p HD	CIF (352 x 288)
Front Camera	-	-	Yes	-
Weight	5.34 oz (151g)	2.99 oz (85g)	4.6 oz (130g)	4.09 oz (116g)
Dimensions	4.2" x 2" x 0.9" (107 x 51 x 22.9 mm)	3.83" x 1.84" x 0.65" (97 x 47 x 16.5 mm)	4.84" x 2.5" x 0.38" (123 x 64 x 9.7 mm)	4.33" x 1.93" x 0.75" (110 x 49 x 19.1 mm)
Form Factor	Slide	Clamshell	Slab	Slab
Platform / OS	Windows Mobile Standard	(proprietary)	Android	S60 (Symbian)
Network Bands	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900	4G LTE: 4, 17 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900	WCDMA: 1 GSM: 850, 900, 1800, 1900
Data Technology	HSDPA 3.6	?	LTE (Cat 3)	EDGE
Features
Flashlight	-	-	Yes	-
GPS / Location	n/a	Yes	n/a	n/a
Accessibility
Adjustable Text Size	n/a	Yes	n/a	n/a
Hearing Aid Compatible	-	Yes M4 (very compatible)	Yes M3, T4 (very tele-coil compatible)	-
Multiple Languages	n/a	Yes	n/a	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	-
Alerts
Ringer Profiles	Yes	Yes	-	Yes
Connectivity
Bluetooth	Yes	-	Yes	Yes
Infrared (IR)	-	-	-	Yes
USB	Yes	Yes Micro-USB	Yes Micro-USB	Yes
Wi-Fi	-	-	Yes 4 (802.11 b,g,n)	-
Contacts
Picture ID	n/a	Yes	n/a	n/a
Ringer ID	n/a	Yes	n/a	n/a
Voice Dialing	n/a	-	n/a	n/a
Customization
Custom Graphics	n/a	Yes	n/a	n/a
Custom Ringtones	n/a	Yes	n/a	n/a
Real-Music Ringers	n/a	Yes	n/a	n/a
Data & Network
Data Tethering	n/a	-	n/a	n/a
WAP / Web Browser	n/a	Yes	n/a	n/a
Input
Predictive Text Entry	n/a	Yes	n/a	n/a
Side Keys	Yes	-	Yes	Yes
Text Keyboard, Hardware	Yes	-	-	-
Touch Screen	-	-	Yes Capacitive	-
Memory
Memory Card Slot	Yes	-	Yes	Yes
Messaging
Email Client	n/a	-	n/a	n/a
Instant Messaging	n/a	-	n/a	n/a
MMS	n/a	Yes	n/a	n/a
Text Messaging Templates	n/a	Yes	n/a	n/a
Music
FM Radio	-	-	Yes	Yes
Headphone Jack (3.5mm)	-	-	Yes	-
Music Player	n/a	-	n/a	n/a
Stereo Speakers	-	-	-	Yes
Photo & Video
Video Calling	n/a	-	n/a	n/a
Productivity
Alarm	n/a	Yes	n/a	n/a
Calculator	n/a	Yes	n/a	n/a
Calendar	n/a	Yes	n/a	n/a
To-Do List	n/a	Yes	n/a	n/a
Voice Memo	n/a	Yes	n/a	n/a
Software
Games	n/a	-	n/a	n/a
Java (J2ME)	n/a	-	n/a	n/a
Voice
Push-To-Talk	-	-	-	Yes *
Speaker Phone	Yes	Yes	Yes	Yes
	* Some versions only
	Pantech Matrix Pro C820	Samsung SGH-A157	Alcatel Pop Star	Nokia N73
	X >	< X >	< X >	< X

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


Phone	Pantech Matrix Pro C820	Samsung SGH-A157	Alcatel Pop Star	Nokia N73