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Phone	Pantech Matrix Pro C820	Samsung M520	Kyocera 1155	Sony Ericsson J300a	AT&T Vista
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	2.4" diag. 4 : 3	2.1" diag. 4 : 3	?	?	5.5" diag. 18 : 9
Display Resolution & Type	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)	176 x 220 pixels (~134 ppi) LCD (TFT/TFD)	?	128 x 128 pixels LCD (STN)	720 x 1440 pixels (~293 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	?	60 Hz
Battery	1,320 mAh	?	975 mAh	?	2,450 mAh
Processor	528 MHz ARM 11	?	?	?	2 GHz MediaTek Helio A22 (MT6761V)
RAM	?	?	?	?	3 GB
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	32 GB
Main Camera	2 megapixel	1 megapixel	-	-	8 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	QCIF (176 x 144)	?	-	-	1080p HD
Front Camera	-	-	-	-	5 megapixel
Weight	5.34 oz (151g)	2.75 oz (78g)	4.34 oz (123g)	2.75 oz (78g)	5.51 oz (156g)
Dimensions	4.2" x 2" x 0.9" (107 x 51 x 22.9 mm)	4.01" x 2.04" x 0.5" (102 x 52 x 12.7 mm)	4.72" x 1.89" x 0.95" (120 x 48 x 24.1 mm)	3.9" x 1.68" x 0.72" (99 x 43 x 18.3 mm)	5.88" x 2.82" x 0.35" (149 x 72 x 8.9 mm)
Form Factor	Slide	Slide	Slab	Slab	Slab
Platform / OS	Windows Mobile Standard	(proprietary)	(proprietary)	(proprietary)	Android
Network Bands	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	CDMA: 850, 1900 AMPS: 850	GSM: 850, 1900	4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30 WCDMA: 1, 2, 4, 5, 8
Data Technology	HSDPA 3.6	EVDO r0	-	GPRS	LTE (Cat 4)
Features
Flashlight	-	-	-	-	Yes
GPS / Location	n/a	Yes	-	-	n/a
Accessibility
Hearing Aid Compatible	-	Yes M4 (very compatible)	-	-	Yes M4, T4 (very tele-coil compatible)
Multiple Languages	n/a	Yes	Yes	-	n/a
TTY/TDD (Digital)	Yes	Yes	-	Yes	-
Alerts
Ringer Profiles	Yes	-	-	Yes	-
Connectivity
Bluetooth	Yes	Yes	-	-	Yes
USB	Yes	Yes	-	Yes	Yes USB Type C
Wi-Fi	-	-	-	-	Yes
Contacts
Picture ID	n/a	Yes	-	Yes	n/a
Ringer ID	n/a	Yes	-	-	n/a
Voice Dialing	n/a	Yes	-	Yes	n/a
Customization
Changeable Body Plates	-	-	-	Yes	-
Custom Graphics	n/a	Yes	-	Yes	n/a
Custom Ringtones	n/a	Yes	-	Yes	n/a
Real-Music Ringers	n/a	-	-	-	n/a
Data & Network
Data Tethering	n/a	Yes	-	Yes	n/a
WAP / Web Browser	n/a	Yes	-	Yes	n/a
Input
Predictive Text Entry	n/a	Yes	-	Yes	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	-	-	Yes	n/a
EMS / Picture Messaging	n/a	-	-	Yes	n/a
Instant Messaging	n/a	-	-	-	n/a
MMS	n/a	-	-	Yes	n/a
Text Messaging Templates	n/a	Yes	Yes	-	n/a
Music
Headphone Jack (3.5mm)	-	-	-	-	Yes
Music Player	n/a	Yes	-	-	n/a
Productivity
Alarm	n/a	Yes	Yes	Yes	n/a
Calculator	n/a	Yes	Yes	Yes	n/a
Calendar	n/a	Yes	-	Yes	n/a
To-Do List	n/a	Yes	-	Yes	n/a
Voice Memo	n/a	Yes	-	Yes	n/a
Software
Games	n/a	Yes	Yes	Yes	n/a
Java (J2ME)	n/a	Yes	-	Yes	n/a
Voice
HD Voice	-	-	-	-	Yes
Headset Jack (2.5 mm)	n/a	-	Yes	-	n/a
Speaker Phone	Yes	Yes	-	Yes	Yes
	Pantech Matrix Pro C820	Samsung M520	Kyocera 1155	Sony Ericsson J300a	AT&T Vista
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NOTE: Differences are highlighted with bold / black text for visual clarity only.


Phone	Pantech Matrix Pro C820	Samsung M520	Kyocera 1155	Sony Ericsson J300a	AT&T Vista