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Phone Motorola T191 Ericsson T66 Samsung SCH-A990 Samsung SPH-A420
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? ? ? ?
Display Resolution & Type 98 x 64 pixels ? 240 x 320 pixels
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? ?
Battery ? ? 1,000 mAh 1,000 mAh
Processor ? ? ? ?
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera - - 3 megapixel -
Wide Camera - - - -
Tele Camera - - - -
Video Capture - - ? -
Front Camera - - - -
Weight 3.49 oz
(99g)
2.08 oz
(59g)
4.4 oz
(125g)
2.9 oz
(82g)
Dimensions 4.17" x 1.57" x 0.59"
(106 x 40 x 15 mm)
3.62" x 1.61" x 0.69"
(92 x 41 x 17.5 mm)
3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
3.35" x 1.72" x 0.85"
(85 x 44 x 21.6 mm)
Form Factor Slab Slab Clamshell Clamshell
Platform / OS (proprietary) (proprietary) (proprietary) (proprietary)
Network Bands

GSM: 1900

GSM: 900, 1800, 1900

CDMA: 850, 1900

CDMA: 850, 1900

AMPS: 850

Data Technology - - EVDO r0 -
Features 
Flashlight - - Yes -
GPS / Location - - Yes Yes
Accessibility
Hearing Aid Compatible - - Yes
M3 (mostly compatible)
Yes
M3 (mostly compatible)
Multiple Languages Yes Yes Yes Yes
TTY/TDD (Digital) - - Yes Yes
Alerts
Extra Display - - Yes -
Ringer Profiles Yes Yes - -
Connectivity
Bluetooth - - Yes -
USB - - Yes -
Contacts
Picture ID - - Yes -
Ringer ID - - Yes -
Voice Dialing Yes - Yes Yes
Customization
Custom Graphics Yes Yes Yes -
Custom Ringtones Yes Yes Yes -
Real-Music Ringers - - Yes -
Data & Network
Data Tethering Yes - Yes Yes
WAP / Web Browser Yes Yes Yes -
Input
Predictive Text Entry Yes Yes Yes Yes
Side Keys - Yes Yes Yes
Memory
Memory Card Slot - - Yes -
Messaging
EMS / Picture Messaging - Yes Yes -
MMS - - Yes -
Text Messaging Templates Yes Yes Yes -
Music
Music Player - - Yes -
Stereo Speakers - - Yes -
Photo & Video
TV Output - - Yes -
Productivity
Alarm Yes Yes Yes Yes
Calculator Yes Yes Yes Yes
Calendar Yes Yes Yes Yes
To-Do List - Yes - Yes
Voice Memo Yes - Yes Yes
Software
BREW - - Yes -
Games Yes Yes Yes -
Voice
Headset Jack (2.5 mm) Yes - - Yes
Speaker Phone - - Yes Yes
  Motorola T191 Ericsson T66 Samsung SCH-A990 Samsung SPH-A420
  X > < X > < X > < X

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

 
Phone Motorola T191 Ericsson T66 Samsung SCH-A990 Samsung SPH-A420

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