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Phone	HTC Desire 555	Motorola Sidekick Slide	Palm Treo 600 (CDMA)	Apple iPhone 4 (CDMA)	Samsung Droid Charge
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	5" diag. 16 : 9	?	?	3.5" diag. 5 : 3	4.3" diag. 5 : 3
Display Resolution & Type	720 x 1280 pixels (~294 ppi) LCD (TFT/TFD)	320 x 240 pixels LCD (TFT/TFD)	160 x 160 pixels LCD (Color)	640 x 960 pixels (~330 ppi) LCD (TFT/TFD)	480 x 800 pixels (~217 ppi) AMOLED
Display Refresh	60 Hz	?	?	60 Hz	60 Hz
Battery	2,200 mAh	?	?	?	1,500 mAh
Processor	1.1 GHz Qualcomm Snapdragon 210 (MSM8909)	225 MHz TI OMAP 850	?	?	1 GHz Samsung Hummingbird
RAM	2 GB	?	?	?	?
Storage	16 GB	? raw hardware	? raw hardware	8 GB *	? raw hardware
Main Camera	8 megapixel	1 megapixel	Yes	5 megapixel	8 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	720p HD	-	-	720p HD	720p HD
Front Camera	5 megapixel	-	-	Yes	1 megapixel
Weight	4.93 oz (140g)	5.3 oz (150g)	6.2 oz (176g)	4.8 oz (136g)	5.06 oz (144g)
Dimensions	5.78" x 2.79" x 0.33" (147 x 71 x 8.4 mm)	4.65" x 2.44" x 0.69" (118 x 62 x 17.5 mm)	4.41" x 2.36" x 0.87" (112 x 60 x 22.1 mm)	4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm)	5.1" x 2.68" x 0.46" (130 x 68 x 11.7 mm)
Form Factor	Slab	Slide	Slab	Slab	Slab
Platform / OS	Android	(proprietary)	Palm OS	iOS	Android
Network Bands	4G LTE: 2, 4, 5, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900	GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	CDMA: 850, 1900	4G LTE: 13 CDMA: 850, 1900
Data Technology	LTE (Cat 4)	EDGE	1xRTT	EVDO rA	LTE (Cat 3)
Features
Flashlight	Yes	-	-	-	-
GPS / Location	n/a	-	n/a	n/a	n/a
Accessibility
Adjustable Text Size	n/a	Yes	n/a	n/a	n/a
Hearing Aid Compatible	Yes * M4, T4 (very tele-coil compatible)	-	-	Yes M4, T4 (very tele-coil compatible)	Yes M4, T4 (very tele-coil compatible)
Multiple Languages	n/a	-	n/a	n/a	n/a
TTY/TDD (Digital)	Yes	-	Yes	-	Yes
Alerts
Ringer Profiles	-	Yes	-	-	-
Connectivity
Bluetooth	Yes	Yes	-	Yes	Yes
Infrared (IR)	-	-	Yes	-	-
Mobile Hotspot	n/a	-	n/a	n/a	n/a
USB	Yes Micro-USB	Yes	Yes	Yes	Yes Micro-USB
Wi-Fi	Yes 4 (802.11 b,g,n)	-	-	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 b,g,n)
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	Yes	n/a	n/a	n/a
Data & Network
Data Tethering	n/a	-	n/a	n/a	n/a
WAP / Web Browser	n/a	Yes	n/a	n/a	n/a
Input
Predictive Text Entry	n/a	-	n/a	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	Yes	Yes	-	-
Touch Screen	Yes Capacitive	-	Yes	Yes Capacitive	Yes Capacitive
Memory
Memory Card Slot	Yes	Yes	Yes	-	Yes
Messaging
Email Client	n/a	Yes	n/a	n/a	n/a
Instant Messaging	n/a	Yes	n/a	n/a	n/a
MMS	n/a	Yes	n/a	n/a	n/a
Music
FM Radio	Yes	-	-	-	-
Headphone Jack (3.5mm)	Yes	-	-	Yes	Yes
Music Player	n/a	Yes	n/a	n/a	n/a
Photo & Video
DLNA	Yes	-	-	-	Yes
Miracast	Yes	-	-	-	-
TV Output	-	-	-	Yes	Yes
Video Calling	n/a	-	n/a	n/a	n/a
Productivity
Alarm	n/a	Yes	n/a	n/a	n/a
Calculator	n/a	-	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	-	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	Yes
	* Some versions only
	HTC Desire 555	Motorola Sidekick Slide	Palm Treo 600 (CDMA)	Apple iPhone 4 (CDMA)	Samsung Droid Charge
	X >	< X >	< X >	< X >	< X

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


Phone	HTC Desire 555	Motorola Sidekick Slide	Palm Treo 600 (CDMA)	Apple iPhone 4 (CDMA)	Samsung Droid Charge