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Phone	Motorola ROKR Z6	Samsung Glyde U940	BlackBerry Storm2 9550	Siemens SX1	HTC Desire 555
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	2.8" diag. 16.5 : 9	3.3" diag. 4 : 3	?	5" diag. 16 : 9
Display Resolution & Type	240 x 320 pixels LCD (TFT/TFD)	240 x 440 pixels (~182 ppi) LCD (TFT/TFD)	360 x 480 pixels (~185 ppi) LCD (TFT/TFD)	176 x 220 pixels LCD (TFT/TFD)	720 x 1280 pixels (~294 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	?	60 Hz
Battery	750 mAh	1,000 mAh	1,400 mAh	1,000 mAh	2,200 mAh
Processor	?	?	?	?	1.1 GHz Qualcomm Snapdragon 210 (MSM8909)
RAM	?	?	?	?	2 GB
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	16 GB
Main Camera	2 megapixel	2 megapixel	3 megapixel	Yes	8 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	QVGA (320 x 240)	?	QCIF (176 x 144)	720p HD
Front Camera	-	-	-	-	5 megapixel
Weight	4.06 oz (115g)	4.2 oz (119g)	5.64 oz (160g)	4.09 oz (116g)	4.93 oz (140g)
Dimensions	4.15" x 1.79" x 0.63" (105 x 45 x 16 mm)	4.09" x 1.98" x 0.71" (104 x 50 x 18 mm)	4.43" x 2.45" x 0.55" (113 x 62 x 14 mm)	4.29" x 2.2" x 0.75" (109 x 56 x 19.1 mm)	5.78" x 2.79" x 0.33" (147 x 71 x 8.4 mm)
Form Factor	Slide	Slide	Slab	Slab	Slab
Platform / OS	(proprietary)	(proprietary)	BlackBerry OS	S60 (Symbian)	Android
Network Bands	GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	WCDMA: 1 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900	GSM: 900, 1800, 1900	4G LTE: 2, 4, 5, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900
Data Technology	EDGE	EVDO r0	EVDO rA	GPRS	LTE (Cat 4)
Features
Flashlight	-	-	-	-	Yes
GPS / Location	-	Yes	n/a	n/a	n/a
Accessibility
Adjustable Text Size	-	-	n/a	n/a	n/a
Hearing Aid Compatible	-	Yes M4 (very compatible)	Yes M3 (mostly compatible)	-	Yes * M4, T4 (very tele-coil compatible)
Multiple Languages	Yes	Yes	n/a	n/a	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	-	Yes
Alerts
Ringer Profiles	Yes	-	Yes	Yes	-
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
Infrared (IR)	-	-	-	Yes	-
USB	Yes	Yes	Yes	Yes	Yes Micro-USB
Wi-Fi	-	-	Yes 802.11 b,g	-	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	Yes	Yes	n/a	n/a	n/a
Ringer ID	Yes	Yes	n/a	n/a	n/a
Voice Dialing	-	Yes	n/a	n/a	n/a
Customization
Custom Graphics	Yes	Yes	n/a	n/a	n/a
Custom Ringtones	Yes	Yes	n/a	n/a	n/a
Real-Music Ringers	Yes	Yes	n/a	n/a	n/a
Data & Network
Data Tethering	Yes	Yes	n/a	n/a	n/a
WAP / Web Browser	Yes	Yes	n/a	n/a	n/a
Input
Predictive Text Entry	Yes	Yes	n/a	n/a	n/a
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	Yes	Yes
Messaging
Email Client	Yes	-	n/a	n/a	n/a
EMS / Picture Messaging	Yes	-	n/a	n/a	n/a
Instant Messaging	Yes	-	n/a	n/a	n/a
MMS	Yes	Yes	n/a	n/a	n/a
Text Messaging Templates	Yes	Yes	n/a	n/a	n/a
Music
FM Radio	-	-	-	Yes	Yes
Headphone Jack (3.5mm)	-	-	Yes	-	Yes
Music Player	Yes	Yes	n/a	n/a	n/a
Photo & Video
DLNA	-	-	-	-	Yes
Miracast	-	-	-	-	Yes
Productivity
Alarm	Yes	Yes	n/a	n/a	n/a
Calculator	Yes	Yes	n/a	n/a	n/a
Calendar	Yes	Yes	n/a	n/a	n/a
To-Do List	Yes	-	n/a	n/a	n/a
Voice Memo	Yes	-	n/a	n/a	n/a
Software
BREW	-	Yes	n/a	n/a	n/a
Games	Yes	Yes	n/a	n/a	n/a
Java (J2ME)	Yes	-	n/a	n/a	n/a
Voice
HD Voice	-	-	-	-	Yes
Headset Jack (2.5 mm)	-	Yes	n/a	n/a	n/a
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Motorola ROKR Z6	Samsung Glyde U940	BlackBerry Storm2 9550	Siemens SX1	HTC Desire 555
	X >	< X >	< X >	< X >	< X

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


Phone	Motorola ROKR Z6	Samsung Glyde U940	BlackBerry Storm2 9550	Siemens SX1	HTC Desire 555