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Phone	Samsung SGH-A157	Samsung SCH-A990	ZTE Speed	BlackBerry 8700	ZTE Overture 2 / Maven
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	?	4.5" diag. 16 : 9
Display Resolution & Type	128 x 160 pixels (~116 ppi) LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	540 x 960 pixels (~245 ppi) LCD (TFT/TFD)	320 x 240 pixels LCD (TFT/TFD)	480 x 854 pixels (~218 ppi) LCD (TFT/TFD)
Display Refresh	?	?	60 Hz	?	60 Hz
Battery	800 mAh	1,000 mAh	2,000 mAh	1,100 mAh	2,100 mAh
Processor	?	?	1.2 GHz Qualcomm Snapdragon 410 MSM8916	?	1.2 GHz Qualcomm Snapdragon 410 (MSM8916)
RAM	?	?	1 GB	?	1 GB
Storage	256 MB	? raw hardware	8 GB	? raw hardware	8 GB
Main Camera	-	3 megapixel	5 megapixel	-	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	?	720p HD	-	720p HD
Front Camera	-	-	2 megapixel	-	Yes
Weight	2.99 oz (85g)	4.4 oz (125g)	4.8 oz (136g)	4.7 oz (133g)	4.71 oz (134g)
Dimensions	3.83" x 1.84" x 0.65" (97 x 47 x 16.5 mm)	3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm)	5.3" x 2.6" x 0.4" (135 x 66 x 10.2 mm)	4.3" x 2.7" x 0.8" (109 x 69 x 20.3 mm)	5.31" x 2.59" x 0.39" (135 x 66 x 9.9 mm)
Form Factor	Clamshell	Clamshell	Slab	Slab	Slab
Platform / OS	(proprietary)	(proprietary)	Android	BlackBerry OS	Android
Network Bands	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	4G LTE: 25, 26, 41 CDMA: 800, 850, 1900	GSM: 850, 900, 1800, 1900	4G LTE: 2, 4, 5, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900
Data Technology	?	EVDO r0	LTE (Cat 3)	EDGE	LTE (Cat 4)
Features
Flashlight	-	Yes	-	-	Yes
GPS / Location	Yes	Yes	n/a	n/a	n/a
Accessibility
Adjustable Text Size	Yes	-	n/a	n/a	n/a
Hearing Aid Compatible	Yes M4 (very compatible)	Yes M3 (mostly compatible)	Yes M3, T4 (very tele-coil 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	Yes
Alerts
Extra Display	-	Yes	-	-	-
Ringer Profiles	Yes	-	-	Yes	-
Connectivity
Bluetooth	-	Yes	Yes	Yes	Yes
Mobile Hotspot	-	-	n/a	n/a	n/a
USB	Yes Micro-USB	Yes	Yes Micro-USB	Yes	Yes Micro-USB
Wi-Fi	-	-	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	Yes	n/a	n/a	n/a
Data & Network
Data Tethering	-	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
Text Keyboard, Hardware	-	-	-	Yes	-
Touch Screen	-	-	Yes Capacitive	-	Yes Capacitive
Memory
Memory Card Slot	-	Yes	Yes	-	Yes
Messaging
Email Client	-	-	n/a	n/a	n/a
EMS / Picture Messaging	-	Yes	n/a	n/a	n/a
Instant Messaging	-	-	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
Headphone Jack (3.5mm)	-	-	Yes	-	Yes
Music Player	-	Yes	n/a	n/a	n/a
Stereo Speakers	-	Yes	-	-	-
Photo & Video
TV Output	-	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	Yes	n/a	n/a	n/a
Software
BREW	-	Yes	n/a	n/a	n/a
Games	-	Yes	n/a	n/a	n/a
Java (J2ME)	-	-	n/a	n/a	n/a
Voice
HD Voice	-	-	Yes	-	-
Headset Jack (2.5 mm)	-	-	n/a	n/a	n/a
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Samsung SGH-A157	Samsung SCH-A990	ZTE Speed	BlackBerry 8700	ZTE Overture 2 / Maven
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SGH-A157	Samsung SCH-A990	ZTE Speed	BlackBerry 8700	ZTE Overture 2 / Maven