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Phone Motorola KRZR K1 Huawei Tap Samsung Trill R520 Samsung Jitterbug J / SPH-A310
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 2.8" diag.
4 : 3
2.2" diag.
4 : 3
2.1" diag.
4 : 3
Display Resolution & Type 176 x 220 pixels
LCD (TFT/TFD)
240 x 320 pixels
(~143 ppi)
LCD (TFT/TFD)
176 x 220 pixels
(~128 ppi)
LCD (TFT/TFD)
176 x 220 pixels
(~134 ppi)
LCD (Color)
Display Refresh ? ? ? ?
Battery 780 mAh ? 880 mAh ?
Processor ? ? ? ?
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera 2 megapixel 2 megapixel 1 megapixel -
Wide Camera - - - -
Tele Camera - - - -
Video Capture ? QVGA (320 x 240) ? -
Front Camera - - - -
Weight 3.6 oz
(102g)
3.7 oz
(105g)
3.42 oz
(97g)
3.99 oz
(113g)
Dimensions 4.05" x 1.65" x 0.63"
(103 x 42 x 16 mm)
4.17" x 2.2" x 0.54"
(106 x 56 x 13.7 mm)
3.97" x 1.96" x 0.57"
(101 x 50 x 14.5 mm)
3.87" x 2.16" x 0.97"
(98 x 55 x 24.6 mm)
Form Factor Clamshell Slab Slide Clamshell
Platform / OS (proprietary) (proprietary) (proprietary) (proprietary)
Network Bands

GSM: 850, 900, 1800, 1900

WCDMA: 4

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

CDMA: 850, 1900

Data Technology EDGE HSDPA 3.6 EVDO r0 -
Features 
GPS / Location - Yes Yes Yes
Accessibility
Hearing Aid Compatible - - Yes Yes
Multiple Languages Yes Yes Yes -
TTY/TDD (Digital) Yes Yes Yes -
Alerts
Extra Display Yes - - Yes
Ringer Profiles Yes Yes - -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
USB Yes Yes
Mini-USB
Yes -
Contacts
Picture ID Yes Yes Yes -
Ringer ID Yes Yes Yes -
Voice Dialing Yes - Yes Yes
Customization
Custom Graphics Yes Yes Yes -
Custom Ringtones Yes Yes Yes -
Real-Music Ringers - Yes Yes -
Data & Network
Data Tethering Yes Yes Yes -
WAP / Web Browser Yes Yes Yes -
Input
Predictive Text Entry Yes Yes Yes -
Side Keys Yes Yes Yes Yes
Touch Screen - Yes - -
Memory
Memory Card Slot Yes Yes Yes -
Messaging
Email Client Yes Yes - -
EMS / Picture Messaging Yes - - -
Instant Messaging - Yes - -
MMS Yes Yes Yes -
Text Messaging Templates Yes Yes Yes Yes
Music
FM Radio - Yes - -
Headphone Jack (3.5mm) - - Yes -
Music Player Yes Yes Yes -
Productivity
Alarm Yes Yes Yes -
Calculator Yes Yes Yes -
Calendar Yes Yes Yes -
Voice Memo Yes - Yes -
Software
BREW - - Yes -
Games Yes Yes Yes -
Java (J2ME) Yes Yes - -
Voice
Push-To-Talk Yes * - - -
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  Motorola KRZR K1 Huawei Tap Samsung Trill R520 Samsung Jitterbug J / SPH-A310
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Motorola KRZR K1 Huawei Tap Samsung Trill R520 Samsung Jitterbug J / SPH-A310

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