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Phone Siemens A56 / A56i Samsung SCH-A990 Samsung SPH-i550 Samsung M400 NEC Terrain
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Not yet released Released Released
Specifications 
Display Size ? ? ? 2.4" diag.
4 : 3
3.1" diag.
4 : 3
Display Resolution & Type 101 x 64 pixels 240 x 320 pixels
LCD (TFT/TFD)
320 x 320 pixels
LCD (TFT/TFD)
240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
480 x 640 pixels
(~258 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? ? 60 Hz
Battery 700 mAh 1,000 mAh ? 1,000 mAh 1,900 mAh
Processor ? ? 200 MHz Motorola MX-1 400 MHz Qualcomm QSC6155 1.5 GHz Qualcomm Snapdragon S4 Plus MSM8960
RAM ? ? ? 128 MB 1 GB
Storage ? raw hardware ? raw hardware ? raw hardware 256 MB 8 GB
Main Camera - 3 megapixel 1 megapixel 1 megapixel 5 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - ? ? - 720p HD
Front Camera - - - - Yes
Weight 3 oz
(85g)
4.4 oz
(125g)
? 3.7 oz
(105g)
6.06 oz
(172g)
Dimensions 4" x 1.7" x 0.8"
(102 x 43 x 20.3 mm)
3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
3.46" x 2.34" x 1.1"
(88 x 59 x 27.9 mm)
3.8" x 1.9" x 0.7"
(97 x 48 x 17.8 mm)
5.02" x 2.54" x 0.57"
(128 x 65 x 14.5 mm)
Form Factor Slab Clamshell Clamshell Clamshell Slab
Platform / OS (proprietary) (proprietary) Palm OS (proprietary) Android
Network Bands

GSM: 850, 1900

CDMA: 850, 1900

CDMA: 850, 1900

AMPS: 850

CDMA: 800, 850, 1900

4G LTE: 2, 4, 5, 17

WCDMA: 1, 2, 5

GSM: 850, 1900

Data Technology - EVDO r0 1xRTT 1xRTT LTE (Cat 3)
Features 
Flashlight - Yes - - -
GPS / Location Yes Yes n/a Yes n/a
Ruggedized - - - - Yes
Water-Resistant - - - - Yes
IPX7 (snorkeling)
Accessibility
Adjustable Text Size - - n/a Yes n/a
Hearing Aid Compatible - Yes - Yes Yes
Multiple Languages - Yes n/a Yes n/a
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Alerts
Extra Display - Yes Yes Yes -
Ringer Profiles Yes - - - -
Connectivity
Bluetooth - Yes
Classic Audio
- Yes
Classic Audio
Yes
Infrared (IR) - - Yes - -
Mobile Hotspot - - n/a - n/a
NFC - - - - Yes
USB - Yes - Yes
Micro-USB
Yes
Micro-USB
Wi-Fi - - - - Yes
4 (802.11 b,g,n)
Contacts
Picture ID Yes Yes n/a Yes n/a
Ringer ID Yes Yes n/a Yes n/a
Voice Dialing - Yes n/a Yes n/a
Customization
Changeable Body Plates Yes - - - -
Custom Graphics Yes Yes n/a Yes n/a
Custom Ringtones Yes Yes n/a Yes n/a
Real-Music Ringers - Yes n/a Yes n/a
Data & Network
Data Tethering - Yes n/a - n/a
WAP / Web Browser Yes Yes n/a Yes n/a
Input
Predictive Text Entry Yes Yes n/a Yes n/a
Side Keys - Yes Yes Yes Yes
Text Keyboard, Hardware - - - - Yes
Touch Screen - - Yes - Yes
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 n/a Yes n/a
Text Messaging Templates - Yes n/a Yes n/a
Music
FM Radio - - - - Yes
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 Yes n/a
Calculator Yes Yes n/a Yes n/a
Calendar - Yes n/a Yes n/a
To-Do List - - n/a - n/a
Voice Memo - Yes n/a Yes n/a
Software
BREW - Yes n/a - n/a
Games Yes Yes n/a Yes n/a
Voice
Headset Jack (2.5 mm) - - n/a - n/a
Push-To-Talk - - - - Yes
Speaker Phone - Yes - Yes Yes
  Siemens A56 / A56i Samsung SCH-A990 Samsung SPH-i550 Samsung M400 NEC Terrain
  X > < X > < X > < X > < X

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

 
Phone Siemens A56 / A56i Samsung SCH-A990 Samsung SPH-i550 Samsung M400 NEC Terrain

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