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

4G LTE: 4, 13

WCDMA: 1, 2, 5, 8

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

GSM: 850, 900, 1800, 1900

4G LTE: 13

CDMA: 850, 1900

GSM: 850, 1900

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

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

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