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Phone Samsung SCH-A990 Samsung SGH-X640 BlackBerry Storm2 9550 ZTE ZMAX 2
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? ? 3.3" diag.
4 : 3
5.5" diag.
16 : 9
Display Resolution & Type 240 x 320 pixels
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
360 x 480 pixels
(~185 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~267 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? 60 Hz
Battery 1,000 mAh 800 mAh 1,400 mAh 3,000 mAh
Processor ? ? ? 1.2 GHz Qualcomm Snapdragon 400 (MSM8916)
RAM ? ? ? 2 GB
Storage ? raw hardware ? raw hardware ? raw hardware 16 GB
Main Camera 3 megapixel Yes 3 megapixel 8 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture ? - ? 720p HD
Front Camera - - - 2 megapixel
Weight 4.4 oz
(125g)
3 oz
(85g)
5.64 oz
(160g)
5.99 oz
(170g)
Dimensions 3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
4.43" x 2.45" x 0.55"
(113 x 62 x 14 mm)
6.06" x 2.99" x 0.37"
(154 x 76 x 9.4 mm)
Form Factor Clamshell Clamshell Slab Slab
Platform / OS (proprietary) (proprietary) BlackBerry OS Android
Network Bands

CDMA: 850, 1900

GSM: 900, 1800, 1900

WCDMA: 1

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

4G LTE: 2, 4, 5, 12

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

Data Technology EVDO r0 GPRS EVDO rA LTE (Cat 4)
Features 
Flashlight Yes - - -
GPS / Location Yes - n/a n/a
Accessibility
Adjustable Text Size - - n/a n/a
Hearing Aid Compatible Yes
M3 (mostly compatible)
- Yes
M3 (mostly compatible)
Yes
M3, T3 (mostly tele-coil compatible)
Multiple Languages Yes Yes n/a n/a
TTY/TDD (Digital) Yes - Yes Yes
Alerts
Extra Display Yes - - -
Ringer Profiles - - Yes -
Connectivity
Bluetooth Yes - Yes Yes
Mobile Hotspot - - n/a n/a
USB 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
Ringer ID Yes Yes n/a n/a
Voice Dialing Yes - n/a n/a
Customization
Custom Graphics Yes Yes n/a n/a
Custom Ringtones Yes Yes n/a n/a
Real-Music Ringers Yes - n/a n/a
Data & Network
Data Tethering Yes - n/a n/a
WAP / Web Browser Yes Yes n/a n/a
Input
Predictive Text Entry Yes Yes n/a n/a
Side Keys Yes Yes Yes Yes
Touch Screen - - Yes
Capacitive
Yes
Capacitive
Memory
Memory Card Slot Yes - Yes Yes
Messaging
Email Client - - n/a n/a
EMS / Picture Messaging Yes Yes n/a n/a
Instant Messaging - - n/a n/a
MMS Yes Yes n/a n/a
Text Messaging Templates Yes Yes n/a n/a
Music
Headphone Jack (3.5mm) - - Yes Yes
Music Player Yes - n/a n/a
Stereo Speakers Yes - - -
Photo & Video
TV Output Yes - - -
Productivity
Alarm Yes Yes n/a n/a
Calculator Yes Yes n/a n/a
Calendar Yes Yes n/a n/a
To-Do List - Yes n/a n/a
Voice Memo Yes Yes n/a n/a
Software
BREW Yes - n/a n/a
Games Yes Yes n/a n/a
Java (J2ME) - Yes n/a n/a
Voice
Headset Jack (2.5 mm) - Yes n/a n/a
Speaker Phone Yes Yes Yes Yes
  Samsung SCH-A990 Samsung SGH-X640 BlackBerry Storm2 9550 ZTE ZMAX 2
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Phone Samsung SCH-A990 Samsung SGH-X640 BlackBerry Storm2 9550 ZTE ZMAX 2

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