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Phone	Nokia E50	Samsung Knack U310	Samsung Stratosphere / Galaxy Metrix 4G	Motorola Citrus	LG Tritan AX-840 / UX-840
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	2.2" diag. 4 : 3	4" diag. 5 : 3	3" diag. 4 : 3	3" diag. 5 : 3
Display Resolution & Type	240 x 320 pixels LCD (TFT/TFD)	176 x 220 pixels (~128 ppi) LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) AMOLED	240 x 320 pixels (~133 ppi) LCD (TFT/TFD)	240 x 400 pixels (~155 ppi) LCD (TFT/TFD)
Display Refresh	?	?	60 Hz	60 Hz	?
Battery	970 mAh	1,000 mAh	?	1,150 mAh	950 mAh
Processor	?	?	1 GHz Samsung Cortex A8 Hummingbird	?	?
RAM	?	?	?	?	?
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	? raw hardware
Main Camera	1 megapixel	-	5 megapixel	3 megapixel	3 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	QCIF (176 x 144)	-	WVGA / 480p	CIF (352 x 288)	QVGA (320 x 240)
Front Camera	-	-	1 megapixel	-	-
Weight	3.67 oz (104g)	3.63 oz (103g)	5.8 oz (164g)	3.88 oz (110g)	5.03 oz (143g)
Dimensions	4.45" x 1.71" x 0.61" (113 x 43 x 15.5 mm)	3.78" x 2.01" x 0.74" (96 x 51 x 18.8 mm)	4.96" x 2.54" x 0.55" (126 x 65 x 14 mm)	4.09" x 2.32" x 0.59" (104 x 59 x 15 mm)	4.45" x 2.24" x 0.65" (113 x 57 x 16.5 mm)
Form Factor	Slab	Clamshell	Slide	Slab	Slide
Platform / OS	S60 (Symbian)	(proprietary)	Android	Android	(proprietary)
Network Bands	GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	4G LTE: 13 CDMA: 850, 1900 *	CDMA: 850, 1900	CDMA: 850, 1900
Data Technology	EDGE	-	LTE (Cat 3)	EVDO r0	EVDO r0
Features
GPS / Location	n/a	Yes	n/a	n/a	Yes
Accessibility
Adjustable Text Size	n/a	Yes	n/a	n/a	Yes
Hearing Aid Compatible	-	Yes M4, T4 (very tele-coil compatible)	Yes M4 (very compatible)	-	Yes M4, T4 (very tele-coil compatible)
Multiple Languages	n/a	Yes	n/a	n/a	Yes
TTY/TDD (Digital)	-	Yes	Yes	-	Yes
Alerts
Extra Display	-	Yes	-	-	-
Ringer Profiles	Yes	-	-	-	-
Connectivity
Bluetooth	Yes	-	Yes	Yes	Yes
Infrared (IR)	Yes	-	-	-	-
Mobile Hotspot	n/a	-	n/a	n/a	-
USB	Yes	-	Yes	Yes Micro-USB	Yes Micro-USB
Wi-Fi	-	-	Yes 4 (802.11 a,b,g,n)	Yes 802.11 b,g	-
Contacts
Picture ID	n/a	-	n/a	n/a	Yes
Ringer ID	n/a	-	n/a	n/a	Yes
Voice Dialing	n/a	Yes	n/a	n/a	Yes
Customization
Custom Graphics	n/a	-	n/a	n/a	Yes
Custom Ringtones	n/a	-	n/a	n/a	Yes
Real-Music Ringers	n/a	-	n/a	n/a	Yes
Data & Network
Data Tethering	n/a	-	n/a	n/a	-
WAP / Web Browser	n/a	-	n/a	n/a	Yes
Input
Predictive Text Entry	n/a	Yes	n/a	n/a	-
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	Yes	-	Yes
Touch Screen	-	-	Yes Capacitive	Yes Capacitive	Yes
Memory
Memory Card Slot	Yes	-	Yes	Yes	Yes
Messaging
Email Client	n/a	-	n/a	n/a	Yes
EMS / Picture Messaging	n/a	Yes	n/a	n/a	-
Instant Messaging	n/a	-	n/a	n/a	Yes
MMS	n/a	-	n/a	n/a	Yes
Text Messaging Templates	n/a	-	n/a	n/a	Yes
Music
Headphone Jack (3.5mm)	-	-	Yes	Yes	Yes
Music Player	n/a	-	n/a	n/a	Yes
Photo & Video
DLNA	-	-	Yes	-	-
Productivity
Alarm	n/a	Yes	n/a	n/a	Yes
Calculator	n/a	Yes	n/a	n/a	Yes
Calendar	n/a	Yes	n/a	n/a	Yes
To-Do List	n/a	-	n/a	n/a	-
Voice Memo	n/a	-	n/a	n/a	Yes
Software
BREW	n/a	-	n/a	n/a	Yes
Games	n/a	-	n/a	n/a	Yes
Java (J2ME)	n/a	-	n/a	n/a	-
Voice
Headset Jack (2.5 mm)	n/a	Yes	n/a	n/a	-
Push-To-Talk	Yes	-	-	-	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	Nokia E50	Samsung Knack U310	Samsung Stratosphere / Galaxy Metrix 4G	Motorola Citrus	LG Tritan AX-840 / UX-840
	X >	< X >	< X >	< X >	< X

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


Phone	Nokia E50	Samsung Knack U310	Samsung Stratosphere / Galaxy Metrix 4G	Motorola Citrus	LG Tritan AX-840 / UX-840