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Phone	Samsung SGH-A657	Siemens SL55	Motorola Flipout	BlackBerry Pearl 3G 9100 / 9105	ZTE Speed
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	?	2.8" diag. 4 : 3	2.3" diag. 1 : 1	4.5" diag. 16 : 9
Display Resolution & Type	176 x 220 pixels LCD (TFT/TFD)	101 x 80 pixels LCD (STN)	320 x 240 pixels (~143 ppi) LCD (TFT/TFD)	360 x 400 pixels (~238 ppi) LCD (TFT/TFD)	540 x 960 pixels (~245 ppi) LCD (TFT/TFD)
Display Refresh	?	?	60 Hz	?	60 Hz
Battery	1,420 mAh	500 mAh	1,170 mAh	1,150 mAh	2,000 mAh
Processor	?	?	720 MHz TI OMAP 3410	?	1.2 GHz Qualcomm Snapdragon 410 MSM8916
RAM	?	?	?	?	1 GB
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	8 GB
Main Camera	-	-	3 megapixel	3 megapixel	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	-	CIF (352 x 288)	?	720p HD
Front Camera	-	-	-	-	2 megapixel
Weight	4.34 oz (123g)	2.79 oz (79g)	4.23 oz (120g)	3.3 oz (94g)	4.8 oz (136g)
Dimensions	4.53" x 2.05" x 0.77" (115 x 52 x 19.6 mm)	3.21" x 1.75" x 0.86" (82 x 44 x 21.8 mm)	2.64" x 2.64" x 0.67" (67 x 67 x 17 mm)	4.25" x 1.96" x 0.52" (108 x 50 x 13.2 mm)	5.3" x 2.6" x 0.4" (135 x 66 x 10.2 mm)
Form Factor	Slab	Slide	Swivel	Slab	Slab
Platform / OS	(proprietary)	(proprietary)	Android	BlackBerry OS	Android
Network Bands	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900	GSM: 900, 1800, 1900	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 *	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 *	4G LTE: 25, 26, 41 CDMA: 800, 850, 1900
Data Technology	HSDPA 3.6	GPRS	HSPA 7.2	HSDPA 3.6	LTE (Cat 3)
Features
Flashlight	Yes	-	-	-	-
GPS / Location	Yes	-	n/a	n/a	n/a
Ruggedized	Yes	-	-	-	-
Accessibility
Adjustable Text Size	-	-	n/a	n/a	n/a
Hearing Aid Compatible	-	-	Yes M3, T4 (very tele-coil compatible)	Yes M3 (mostly compatible)	Yes M3, T4 (very tele-coil compatible)
Multiple Languages	Yes	Yes	n/a	n/a	n/a
TTY/TDD (Digital)	Yes	-	-	-	Yes
Alerts
Ringer Profiles	-	Yes	-	Yes	-
Connectivity
Bluetooth	Yes	-	Yes	Yes	Yes
Infrared (IR)	-	Yes	-	-	-
Mobile Hotspot	-	-	n/a	n/a	n/a
USB	Yes	-	Yes Micro-USB	Yes Micro-USB	Yes Micro-USB
Wi-Fi	-	-	Yes 802.11 b,g	Yes 4 (802.11 b,g,n)	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	-	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	Yes *	-
Touch Screen	-	-	Yes Capacitive	-	Yes Capacitive
Memory
Memory Card Slot	Yes	-	Yes	Yes	Yes
Messaging
Email Client	Yes	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	-	-
Headphone Jack (3.5mm)	-	-	Yes	Yes	Yes
Music Player	Yes	-	n/a	n/a	n/a
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	Yes	n/a	n/a	n/a
Voice Memo	Yes	Yes	n/a	n/a	n/a
Software
Games	Yes	Yes	n/a	n/a	n/a
Java (J2ME)	Yes	Yes	n/a	n/a	n/a
Voice
HD Voice	-	-	-	-	Yes
Push-To-Talk	Yes	-	-	-	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Samsung SGH-A657	Siemens SL55	Motorola Flipout	BlackBerry Pearl 3G 9100 / 9105	ZTE Speed
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SGH-A657	Siemens SL55	Motorola Flipout	BlackBerry Pearl 3G 9100 / 9105	ZTE Speed