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Phone	BlackBerry 7750	Samsung SGH-A157	Siemens A56 / A56i	Sony Ericsson T237 / T290a	Alcatel Pop Astro
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	1.8" diag. 4 : 3	?	?	4.5" diag. 16 : 9
Display Resolution & Type	240 x 240 pixels LCD (Color)	128 x 160 pixels (~116 ppi) LCD (TFT/TFD)	101 x 64 pixels	101 x 80 pixels LCD (STN)	540 x 960 pixels (~245 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	?	60 Hz
Battery	?	800 mAh	700 mAh	?	2,000 mAh
Processor	?	?	?	?	1.5 GHz MediaTek MTK6732
RAM	?	?	?	?	1 GB
Storage	? raw hardware	256 MB	? raw hardware	? raw hardware	4 GB
Main Camera	-	-	-	-	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	-	-	-	1080p HD
Front Camera	-	-	-	-	Yes
Weight	5.01 oz (142g)	2.99 oz (85g)	3 oz (85g)	2.79 oz (79g)	5.11 oz (145g)
Dimensions	4.76" x 3.03" x 0.71" (121 x 77 x 18 mm)	3.83" x 1.84" x 0.65" (97 x 47 x 16.5 mm)	4" x 1.7" x 0.8" (102 x 43 x 20.3 mm)	4" x 1.71" x 0.71" (102 x 43 x 18 mm)	5.23" x 2.57" x 0.39" (133 x 65 x 9.9 mm)
Form Factor	Slab	Clamshell	Slab	Slab	Slab
Platform / OS	BlackBerry OS	(proprietary)	(proprietary)	(proprietary)	Android
Network Bands	CDMA: 850, 1900	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900	GSM: 850, 1900	GSM: 850, 1900	4G LTE: 2, 4, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900
Data Technology	1xRTT	?	-	GPRS	LTE (Cat 4)
Features
Flashlight	-	-	-	-	Yes
GPS / Location	n/a	Yes	Yes	-	n/a
Accessibility
Adjustable Text Size	n/a	Yes	-	-	n/a
Hearing Aid Compatible	-	Yes M4 (very compatible)	-	-	Yes M4, T3 (mostly tele-coil compatible)
Multiple Languages	n/a	Yes	-	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	Yes
Alerts
Ringer Profiles	Yes	Yes	Yes	-	-
Connectivity
Bluetooth	-	-	-	-	Yes
Mobile Hotspot	n/a	-	-	-	n/a
USB	Yes	Yes Micro-USB	-	Yes	Yes Micro-USB
Wi-Fi	-	-	-	-	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	n/a	Yes	Yes	Yes	n/a
Ringer ID	n/a	Yes	Yes	Yes	n/a
Voice Dialing	n/a	-	-	Yes	n/a
Customization
Changeable Body Plates	-	-	Yes	-	-
Custom Graphics	n/a	Yes	Yes	Yes	n/a
Custom Ringtones	n/a	Yes	Yes	Yes	n/a
Real-Music Ringers	n/a	Yes	-	-	n/a
Data & Network
Data Tethering	n/a	-	-	-	n/a
WAP / Web Browser	n/a	Yes	Yes	Yes	n/a
Input
Predictive Text Entry	n/a	Yes	Yes	Yes	n/a
Side Keys	Yes	-	-	Yes	Yes
Text Keyboard, Hardware	Yes	-	-	-	-
Touch Screen	-	-	-	-	Yes
Memory
Memory Card Slot	-	-	-	-	Yes
Messaging
Email Client	n/a	-	-	Yes	n/a
EMS / Picture Messaging	n/a	-	Yes	Yes	n/a
Instant Messaging	n/a	-	-	-	n/a
MMS	n/a	Yes	-	Yes	n/a
Text Messaging Templates	n/a	Yes	-	Yes	n/a
Music
FM Radio	-	-	-	-	Yes
Headphone Jack (3.5mm)	-	-	-	-	Yes
Music Player	n/a	-	-	-	n/a
Productivity
Alarm	n/a	Yes	Yes	Yes	n/a
Calculator	n/a	Yes	Yes	Yes	n/a
Calendar	n/a	Yes	-	Yes	n/a
To-Do List	n/a	Yes	-	-	n/a
Voice Memo	n/a	Yes	-	Yes	n/a
Software
Games	n/a	-	Yes	Yes	n/a
Java (J2ME)	n/a	-	-	-	n/a
Voice
HD Voice	-	-	-	-	Yes
Headset Jack (2.5 mm)	n/a	-	-	-	n/a
Speaker Phone	-	Yes	-	Yes	Yes
	BlackBerry 7750	Samsung SGH-A157	Siemens A56 / A56i	Sony Ericsson T237 / T290a	Alcatel Pop Astro
	X >	< X >	< X >	< X >	< X

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


Phone	BlackBerry 7750	Samsung SGH-A157	Siemens A56 / A56i	Sony Ericsson T237 / T290a	Alcatel Pop Astro