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Phone Siemens CT56 ZTE Blade X NEC 525 Siemens CT66 / C66 / C65 / C71 / C70
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 5.5" diag.
16 : 9
? ?
Display Resolution & Type 101 x 64 pixels 720 x 1280 pixels
(~267 ppi)
LCD (TFT/TFD)
162 x 216 pixels
LCD (TFT/TFD)
130 x 130 pixels
LCD (Color)
Display Refresh ? 60 Hz ? ?
Battery 700 mAh 3,000 mAh 800 mAh 600 mAh
Processor ? 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) ? ?
RAM ? 2 GB ? ?
Storage ? raw hardware 16 GB ? raw hardware ? raw hardware
Main Camera - 13 megapixel Yes Yes
Wide Camera - - - -
Tele Camera - - - -
Video Capture - 1080p HD - -
Front Camera - 5 megapixel - -
Weight 2.96 oz
(84g)
5.52 oz
(156g)
4.03 oz
(114g)
3 oz
(85g)
Dimensions 3.98" x 1.73" x 0.83"
(101 x 44 x 21.1 mm)
6.14" x 3.05" x 0.35"
(156 x 77 x 8.9 mm)
4.12" x 1.88" x 1.06"
(105 x 48 x 26.9 mm)
4.1" x 1.8" x 0.7"
(104 x 46 x 17.8 mm)
Form Factor Slab Slab Clamshell Slab
Platform / OS (proprietary) Android (proprietary) (proprietary)
Network Bands

GSM: 850, 1900

4G LTE: 2, 4, 5, 12

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

GSM: 850, 900, 1800, 1900

GSM: 850, 1800, 1900

*

Data Technology GPRS LTE (Cat 4) GPRS GPRS
Features 
Fingerprint Reader - Yes
stand-alone
- -
Flashlight - Yes - -
GPS / Location Yes n/a - -
Accessibility
Hearing Aid Compatible - Yes - -
Multiple Languages Yes n/a Yes Yes
TTY/TDD (Digital) Yes Yes Yes -
Alerts
Extra Display - - Yes -
Ringer Profiles - - Yes Yes
Connectivity
Bluetooth - Yes - -
Infrared (IR) - - Yes Yes
USB Yes Yes
USB Type C
Yes Yes
Wi-Fi - Yes
4 (802.11 b,g,n)
- -
Contacts
Picture ID - n/a Yes Yes
Ringer ID - n/a Yes Yes
Voice Dialing Yes n/a Yes -
Customization
Changeable Body Plates Yes - - Yes
Custom Graphics Yes n/a Yes Yes
Custom Ringtones Yes n/a Yes Yes
Data & Network
Data Tethering Yes n/a Yes -
WAP / Web Browser Yes n/a Yes Yes
Input
Predictive Text Entry Yes n/a Yes Yes
Side Keys - Yes Yes -
Touch Screen - Yes - -
Memory
Memory Card Slot - Yes - -
Messaging
Email Client - n/a Yes -
EMS / Picture Messaging Yes n/a Yes Yes
MMS - n/a Yes Yes
Text Messaging Templates - n/a - Yes
Music
FM Radio - Yes - -
Headphone Jack (3.5mm) - Yes - -
Power
Fast Charging - Yes - -
Productivity
Alarm - n/a Yes Yes
Calculator - n/a Yes Yes
Calendar - n/a Yes Yes
To-Do List - n/a Yes Yes
Voice Memo - n/a Yes Yes
Software
Games - n/a Yes Yes
Java (J2ME) Yes n/a Yes Yes
Voice
Call Screening - - - Yes
HD Voice - Yes - -
Headset Jack (2.5 mm) - n/a Yes -
Push-To-Talk - - - Yes *
Speaker Phone Yes Yes - Yes
  * Some versions only
  Siemens CT56 ZTE Blade X NEC 525 Siemens CT66 / C66 / C65 / C71 / C70
  X > < X > < X > < X

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

 
Phone Siemens CT56 ZTE Blade X NEC 525 Siemens CT66 / C66 / C65 / C71 / C70

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