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Phone	Siemens SX66 / MDA III / PDA2K (HTC Blue Angel)	Samsung SGH-E715	Apple iPhone 4 (GSM)	ZTE Grand X 3	Palm Pre (CDMA)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	?	3.5" diag. 5 : 3	5.5" diag. 16 : 9	3.1" diag. 5 : 3
Display Resolution & Type	240 x 320 pixels LCD (TFT/TFD)	128 x 160 pixels LCD (TFT/TFD)	640 x 960 pixels (~330 ppi) LCD (TFT/TFD)	720 x 1280 pixels (~267 ppi) LCD (TFT/TFD)	320 x 480 pixels (~186 ppi) LCD (TFT/TFD)
Display Refresh	?	?	60 Hz	60 Hz	?
Battery	1,490 mAh	900 mAh	?	3,080 mAh	1,150 mAh
Processor	400 MHz Intel XScale	?	Apple A4	1.3 GHz Qualcomm Snapdragon 210 (MSM8909)	TI OMAP 3430
RAM	?	?	?	2 GB	?
Storage	? raw hardware	? raw hardware	32 GB *	16 GB	? raw hardware
Main Camera	Yes	Yes	5 megapixel	8 megapixel	3 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	QCIF (176 x 144)	-	720p HD	720p HD	?
Front Camera	-	-	Yes	2 megapixel	-
Weight	7.41 oz (210g)	3.35 oz (95g)	4.8 oz (136g)	6 oz (170g)	4.76 oz (135g)
Dimensions	4.92" x 2.83" x 0.75" (125 x 72 x 19.1 mm)	3.54" x 1.77" x 0.94" (90 x 45 x 23.9 mm)	4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm)	6.07" x 2.99" x 0.37" (154 x 76 x 9.4 mm)	3.9" x 2.3" x 0.67" (99 x 58 x 17 mm)
Form Factor	Slide	Clamshell	Slab	Slab	Slide
Platform / OS	Windows Mobile Professional	(proprietary)	iOS	Android	webOS
Network Bands	GSM: 850, 900, 1800, 1900	GSM: 900, 1900	WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900	4G LTE: 2, 4, 5, 12 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900
Data Technology	GPRS	GPRS	HSPA 7.2	LTE (Cat 4)	EVDO rA
Features
Flashlight	-	-	-	Yes	-
GPS / Location	n/a	-	n/a	n/a	n/a
Accessibility
Adjustable Text Size	n/a	-	n/a	n/a	n/a
Hearing Aid Compatible	-	-	Yes M3, T3 (mostly tele-coil compatible)	Yes M4, T3 (mostly tele-coil compatible)	Yes M4 (very compatible)
Multiple Languages	n/a	Yes	n/a	n/a	n/a
TTY/TDD (Digital)	-	-	Yes	Yes	Yes
Alerts
Extra Display	-	Yes	-	-	-
Connectivity
Bluetooth	Yes	-	Yes	Yes	Yes
Infrared (IR)	Yes	Yes	-	-	-
Mobile Hotspot	n/a	-	n/a	n/a	n/a
USB	Yes	-	Yes	Yes USB Type C	Yes Micro-USB
Wi-Fi	Yes	-	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 b,g,n)	Yes 802.11 b,g
Contacts
Picture ID	n/a	Yes	n/a	n/a	n/a
Ringer ID	n/a	Yes	n/a	n/a	n/a
Voice Dialing	n/a	-	n/a	n/a	n/a
Customization
Custom Graphics	n/a	Yes	n/a	n/a	n/a
Custom Ringtones	n/a	Yes	n/a	n/a	n/a
Real-Music Ringers	n/a	-	n/a	n/a	n/a
Data & Network
Data Tethering	n/a	Yes	n/a	n/a	n/a
WAP / Web Browser	n/a	Yes	n/a	n/a	n/a
Input
Predictive Text Entry	n/a	Yes	n/a	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	Yes	-	-	-	Yes
Touch Screen	Yes	-	Yes Capacitive	Yes Capacitive	Yes Capacitive
Memory
Memory Card Slot	Yes	-	-	Yes	-
Messaging
Email Client	n/a	-	n/a	n/a	n/a
EMS / Picture Messaging	n/a	Yes	n/a	n/a	n/a
Instant Messaging	n/a	-	n/a	n/a	n/a
MMS	n/a	Yes	n/a	n/a	n/a
Text Messaging Templates	n/a	Yes	n/a	n/a	n/a
Music
Headphone Jack (3.5mm)	-	-	Yes	Yes	Yes
Music Player	n/a	-	n/a	n/a	n/a
Photo & Video
TV Output	-	-	Yes	-	-
Power
Fast Charging	-	-	-	Yes	-
Productivity
Alarm	n/a	Yes	n/a	n/a	n/a
Calculator	n/a	Yes	n/a	n/a	n/a
Calendar	n/a	Yes	n/a	n/a	n/a
To-Do List	n/a	Yes	n/a	n/a	n/a
Voice Memo	n/a	Yes	n/a	n/a	n/a
Software
Games	n/a	Yes	n/a	n/a	n/a
Java (J2ME)	n/a	Yes	n/a	n/a	n/a
Voice
HD Voice	-	-	-	Yes	-
Headset Jack (2.5 mm)	n/a	Yes	n/a	n/a	n/a
Speaker Phone	Yes	-	Yes	Yes	Yes
	* Some versions only
	Siemens SX66 / MDA III / PDA2K (HTC Blue Angel)	Samsung SGH-E715	Apple iPhone 4 (GSM)	ZTE Grand X 3	Palm Pre (CDMA)
	X >	< X >	< X >	< X >	< X

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


Phone	Siemens SX66 / MDA III / PDA2K (HTC Blue Angel)	Samsung SGH-E715	Apple iPhone 4 (GSM)	ZTE Grand X 3	Palm Pre (CDMA)