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Phone Motorola KRZR K1 Motorola Droid Bionic (old) Motorola Droid Ultra Siemens CT56
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Not yet released Released Released
Specifications 
Display Size ? 4.3" diag.
16 : 9
5" diag.
16 : 9
?
Display Resolution & Type 176 x 220 pixels
LCD (TFT/TFD)
540 x 960 pixels
(~256 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~294 ppi)
AMOLED
101 x 64 pixels
Display Refresh ? 60 Hz 60 Hz ?
Battery 780 mAh 1,930 mAh 2,130 mAh 700 mAh
Processor ? 1 GHz Nvidia Tegra dual-core 1.7 GHz Qualcomm Snapdragon S4 Pro MSM8960T ?
RAM ? ? 2 GB ?
Storage ? raw hardware ? raw hardware 16 GB ? raw hardware
Main Camera 2 megapixel 8 megapixel 10 megapixel -
Wide Camera - - - -
Tele Camera - - - -
Video Capture ? 720p HD 1080p HD -
Front Camera - Yes 2 megapixel -
Weight 3.6 oz
(102g)
5.35 oz
(152g)
4.83 oz
(137g)
2.96 oz
(84g)
Dimensions 4.05" x 1.65" x 0.63"
(103 x 42 x 16 mm)
4.96" x 2.63" x 0.54"
(126 x 67 x 13.7 mm)
5.41" x 2.8" x 0.28"
(137 x 71 x 7.2 mm)
3.98" x 1.73" x 0.83"
(101 x 44 x 21.1 mm)
Form Factor Clamshell Slab Slab Slab
Platform / OS (proprietary) Android Android (proprietary)
Network Bands

GSM: 850, 900, 1800, 1900

4G LTE: 13

CDMA: 850, 1900

4G LTE: 4, 13

WCDMA: 1, 2, 5, 8

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

GSM: 850, 1900

Data Technology EDGE LTE (Cat 3) LTE (Cat 3) GPRS
Features 
GPS / Location - n/a n/a Yes
Accessibility
Adjustable Text Size - n/a n/a -
Hearing Aid Compatible - Yes Yes -
Multiple Languages Yes n/a n/a Yes
TTY/TDD (Digital) Yes Yes Yes Yes
Alerts
Extra Display Yes - - -
Ringer Profiles Yes - - -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
-
Mobile Hotspot - n/a n/a -
NFC - - Yes -
USB Yes Yes
Micro-USB
Yes
Micro-USB
Yes
Wi-Fi - Yes
4 (802.11 b,g,n)
Yes
4 (802.11 a,b,g,n)
-
Contacts
Picture ID Yes n/a n/a -
Ringer ID Yes n/a n/a -
Voice Dialing Yes n/a n/a Yes
Customization
Changeable Body Plates - - - Yes
Custom Graphics Yes n/a n/a Yes
Custom Ringtones Yes n/a n/a Yes
Real-Music Ringers - n/a n/a -
Data & Network
Data Tethering Yes n/a n/a Yes
WAP / Web Browser Yes n/a n/a Yes
Input
Predictive Text Entry Yes n/a n/a Yes
Side Keys Yes Yes Yes -
Touch Screen - Yes Yes -
Memory
Memory Card Slot Yes Yes - -
Messaging
Email Client Yes n/a n/a -
EMS / Picture Messaging Yes n/a n/a Yes
Instant Messaging - n/a n/a -
MMS Yes n/a n/a -
Text Messaging Templates Yes n/a n/a -
Music
Headphone Jack (3.5mm) - Yes Yes -
Music Player Yes n/a n/a -
Photo & Video
DLNA - Yes - -
Miracast - - Yes -
TV Output - Yes - -
Video Calling - n/a n/a -
Productivity
Alarm Yes n/a n/a -
Calculator Yes n/a n/a -
Calendar Yes n/a n/a -
To-Do List - n/a n/a -
Voice Memo Yes n/a n/a -
Software
Games Yes n/a n/a -
Java (J2ME) Yes n/a n/a Yes
Voice
Push-To-Talk Yes * - - -
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  Motorola KRZR K1 Motorola Droid Bionic (old) Motorola Droid Ultra Siemens CT56
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Motorola KRZR K1 Motorola Droid Bionic (old) Motorola Droid Ultra Siemens CT56

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