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Phone	Samsung SPH-N270 (Matrix Phone)	Nokia N81	Samsung Stratosphere / Galaxy Metrix 4G	Motorola Charm	Samsung Galaxy S III (CDMA)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	2.4" diag. 4 : 3	4" diag. 5 : 3	2.8" diag. 4 : 3	4.8" diag. 16 : 9
Display Resolution & Type	128 x 160 pixels LCD (TFT/TFD)	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) AMOLED	320 x 240 pixels (~143 ppi) LCD (TFT/TFD)	720 x 1280 pixels (~306 ppi) AMOLED
Display Refresh	?	?	60 Hz	60 Hz	60 Hz
Battery	1,000 mAh	1,050 mAh	?	1,170 mAh	2,100 mAh
Processor	?	369 MHz ARM 11	1 GHz Samsung Cortex A8 Hummingbird	720 MHz TI OMAP3410	1.5 GHz Qualcomm Snapdragon S4
RAM	?	?	?	?	2 GB
Storage	? raw hardware	8 GB *	? raw hardware	? raw hardware	16 GB *
Main Camera	-	2 megapixel	5 megapixel	3 megapixel	8 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	VGA (640 x 480)	WVGA / 480p	?	1080p HD
Front Camera	-	-	1 megapixel	-	2 megapixel
Weight	4.66 oz (132g)	4.94 oz (140g)	5.8 oz (164g)	3.88 oz (110g)	4.65 oz (132g)
Dimensions	4.53" x 2.28" x 0.79" (115 x 58 x 20.1 mm)	4.02" x 1.97" x 0.7" (102 x 50 x 17.8 mm)	4.96" x 2.54" x 0.55" (126 x 65 x 14 mm)	3.87" x 2.65" x 0.45" (98 x 67 x 11.4 mm)	5.38" x 2.78" x 0.34" (137 x 71 x 8.6 mm)
Form Factor	Slide	Slide	Slide	Slab	Slab
Platform / OS	(proprietary)	S60 (Symbian)	Android	Android	Android
Network Bands	CDMA: 850, 1900 AMPS: 850	WCDMA: 1 GSM: 850, 900, 1800, 1900	4G LTE: 13 CDMA: 850, 1900 *	WCDMA: 4 GSM: 850, 900, 1800, 1900 *	4G LTE: 25, 26, 41 CDMA: 800, 850, 1900 *
Data Technology	-	EDGE	LTE (Cat 3)	HSDPA 3.6	LTE (Cat 3)
Features
Flashlight	-	-	-	-	Yes
GPS / Location	Yes	n/a	n/a	n/a	n/a
Accessibility
Adjustable Text Size	-	n/a	n/a	n/a	n/a
Hearing Aid Compatible	-	-	Yes M4 (very compatible)	-	Yes M4 (very compatible)
Multiple Languages	Yes	n/a	n/a	n/a	n/a
TTY/TDD (Digital)	-	-	Yes	Yes	Yes
Alerts
Ringer Profiles	-	Yes	-	-	-
Connectivity
Bluetooth	-	Yes	Yes	Yes	Yes
Mobile Hotspot	-	n/a	n/a	n/a	n/a
NFC	-	-	-	-	Yes
USB	-	Yes Micro-USB	Yes	Yes Micro-USB	Yes Micro-USB
Wi-Fi	-	Yes 802.11 b,g	Yes 4 (802.11 a,b,g,n)	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 a,b,g,n)
Contacts
Picture ID	Yes	n/a	n/a	n/a	n/a
Ringer ID	Yes	n/a	n/a	n/a	n/a
Voice Dialing	Yes	n/a	n/a	n/a	n/a
Customization
Custom Graphics	-	n/a	n/a	n/a	n/a
Custom Ringtones	-	n/a	n/a	n/a	n/a
Real-Music Ringers	-	n/a	n/a	n/a	n/a
Data & Network
Data Tethering	-	n/a	n/a	n/a	n/a
WAP / Web Browser	-	n/a	n/a	n/a	n/a
Input
Predictive Text Entry	Yes	n/a	n/a	n/a	n/a
Side Keys	-	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	Yes	Yes	-
Touch Screen	-	-	Yes Capacitive	Yes Capacitive	Yes Capacitive
Memory
Memory Card Slot	-	Yes *	Yes	Yes	Yes
Messaging
Email Client	-	n/a	n/a	n/a	n/a
Instant Messaging	-	n/a	n/a	n/a	n/a
MMS	-	n/a	n/a	n/a	n/a
Text Messaging Templates	-	n/a	n/a	n/a	n/a
Music
FM Radio	-	Yes	-	-	-
Headphone Jack (3.5mm)	-	Yes	Yes	Yes	Yes
Music Player	-	n/a	n/a	n/a	n/a
Stereo Speakers	-	Yes	-	-	-
Photo & Video
DLNA	-	-	Yes	-	Yes
TV Output	-	-	-	-	Yes
Video Calling	-	n/a	n/a	n/a	n/a
Productivity
Alarm	Yes	n/a	n/a	n/a	n/a
Calculator	Yes	n/a	n/a	n/a	n/a
Calendar	Yes	n/a	n/a	n/a	n/a
To-Do List	Yes	n/a	n/a	n/a	n/a
Voice Memo	Yes	n/a	n/a	n/a	n/a
Software
Games	-	n/a	n/a	n/a	n/a
Java (J2ME)	-	n/a	n/a	n/a	n/a
Voice
HD Voice	-	-	-	-	Yes
Headset Jack (2.5 mm)	Yes	n/a	n/a	n/a	n/a
Push-To-Talk	-	Yes *	-	-	-
Speaker Phone	-	Yes	Yes	Yes	Yes
	* Some versions only
	Samsung SPH-N270 (Matrix Phone)	Nokia N81	Samsung Stratosphere / Galaxy Metrix 4G	Motorola Charm	Samsung Galaxy S III (CDMA)
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SPH-N270 (Matrix Phone)	Nokia N81	Samsung Stratosphere / Galaxy Metrix 4G	Motorola Charm	Samsung Galaxy S III (CDMA)