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Phone	Samsung SPH-A520	Palm Treo 600 (CDMA)	Huawei Ascend II	ZTE Speed	Samsung SGH-X640
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	?	3.5" diag. 5 : 3	4.5" diag. 16 : 9	?
Display Resolution & Type	? LCD (STN)	160 x 160 pixels LCD (Color)	320 x 480 pixels (~165 ppi) LCD (TFT/TFD)	540 x 960 pixels (~245 ppi) LCD (TFT/TFD)	128 x 160 pixels LCD (TFT/TFD)
Display Refresh	?	?	60 Hz	60 Hz	?
Battery	?	?	1,400 mAh	2,000 mAh	800 mAh
Processor	?	?	600 MHz Qualcomm S1 MSM7627	1.2 GHz Qualcomm Snapdragon 410 MSM8916	?
RAM	?	?	?	1 GB	?
Storage	? raw hardware	? raw hardware	? raw hardware	8 GB	? raw hardware
Main Camera	-	Yes	5 megapixel	5 megapixel	Yes
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	-	VGA (640 x 480)	720p HD	-
Front Camera	-	-	-	2 megapixel	-
Weight	3.6 oz (102g)	6.2 oz (176g)	4.1 oz (116g)	4.8 oz (136g)	3 oz (85g)
Dimensions	3.46" x 1.83" x 0.91" (88 x 46 x 23.1 mm)	4.41" x 2.36" x 0.87" (112 x 60 x 22.1 mm)	4.6" x 2.4" x 0.5" (117 x 61 x 12.7 mm)	5.3" x 2.6" x 0.4" (135 x 66 x 10.2 mm)	3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm)
Form Factor	Clamshell	Slab	Slab	Slab	Clamshell
Platform / OS	(proprietary)	Palm OS	Android	Android	(proprietary)
Network Bands	CDMA: 850, 1900 AMPS: 850	CDMA: 850, 1900	CDMA: 850, 1700, 1900	4G LTE: 25, 26, 41 CDMA: 800, 850, 1900	GSM: 900, 1800, 1900
Data Technology	1xRTT	1xRTT	EVDO rA	LTE (Cat 3)	GPRS
Features
GPS / Location	Yes	n/a	n/a	n/a	-
Accessibility
Adjustable Text Size	-	n/a	n/a	n/a	-
Hearing Aid Compatible	-	-	Yes M4, T3 (mostly tele-coil compatible)	Yes M3, T4 (very tele-coil compatible)	-
Multiple Languages	Yes	n/a	n/a	n/a	Yes
TTY/TDD (Digital)	-	Yes	Yes	Yes	-
Alerts
Extra Display	Yes	-	-	-	-
Connectivity
Bluetooth	-	-	Yes	Yes	-
Infrared (IR)	-	Yes	-	-	-
Mobile Hotspot	-	n/a	n/a	n/a	-
USB	-	Yes	Yes Micro-USB	Yes Micro-USB	-
Wi-Fi	-	-	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 b,g,n)	-
Contacts
Picture ID	Yes	n/a	n/a	n/a	Yes
Ringer ID	Yes	n/a	n/a	n/a	Yes
Voice Dialing	Yes	n/a	n/a	n/a	-
Customization
Custom Graphics	Yes	n/a	n/a	n/a	Yes
Custom Ringtones	Yes	n/a	n/a	n/a	Yes
Real-Music Ringers	-	n/a	n/a	n/a	-
Data & Network
Data Tethering	Yes	n/a	n/a	n/a	-
WAP / Web Browser	Yes	n/a	n/a	n/a	Yes
Input
Predictive Text Entry	Yes	n/a	n/a	n/a	Yes
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	Yes	-	-	-
Touch Screen	-	Yes	Yes Capacitive	Yes Capacitive	-
Memory
Memory Card Slot	-	Yes	Yes	Yes	-
Messaging
Email Client	-	n/a	n/a	n/a	-
EMS / Picture Messaging	-	n/a	n/a	n/a	Yes
Instant Messaging	-	n/a	n/a	n/a	-
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	-
Music Player	-	n/a	n/a	n/a	-
Productivity
Alarm	Yes	n/a	n/a	n/a	Yes
Calculator	Yes	n/a	n/a	n/a	Yes
Calendar	Yes	n/a	n/a	n/a	Yes
To-Do List	Yes	n/a	n/a	n/a	Yes
Voice Memo	Yes	n/a	n/a	n/a	Yes
Software
Games	Yes	n/a	n/a	n/a	Yes
Java (J2ME)	-	n/a	n/a	n/a	Yes
Voice
HD Voice	-	-	-	Yes	-
Headset Jack (2.5 mm)	Yes	n/a	n/a	n/a	Yes
Speaker Phone	-	Yes	Yes	Yes	Yes
	Samsung SPH-A520	Palm Treo 600 (CDMA)	Huawei Ascend II	ZTE Speed	Samsung SGH-X640
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SPH-A520	Palm Treo 600 (CDMA)	Huawei Ascend II	ZTE Speed	Samsung SGH-X640