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Phone Siemens CX75 Samsung SPH-i550 Asus ZenFone 4
Current U.S. Carriers (none) (none) (none)
Global Availability Not yet released Not yet released Released
Specifications 
Display Size ? ? 5.5" diag.
16 : 9
Display Resolution & Type 132 x 176 pixels
LCD (TFT/TFD)
320 x 320 pixels
LCD (TFT/TFD)
1080 x 1920 pixels
(~401 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz
Battery 750 mAh ? 3,300 mAh
Processor ? 200 MHz Motorola MX-1 2.2 GHz Qualcomm Snapdragon 630
RAM ? ? 4 GB
Storage ? raw hardware ? raw hardware 64 GB
Main Camera 1 megapixel 1 megapixel 12 megapixel
Wide Camera - - Yes
Tele Camera - - -
Video Capture ? ? 4K UHD
Front Camera - - 8 megapixel
Weight 3.46 oz
(98g)
? 5.47 oz
(155g)
Dimensions 4.33" x 1.88" x 0.74"
(110 x 48 x 18.8 mm)
3.46" x 2.34" x 1.1"
(88 x 59 x 27.9 mm)
6.12" x 2.96" x 0.3"
(155 x 75 x 7.7 mm)
Form Factor Slab Clamshell Slab
Platform / OS (proprietary) Palm OS Android
Network Bands

GSM: 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 28

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

Data Technology GPRS 1xRTT LTE (Cat 12)
Features 
Fingerprint Reader - - Yes
stand-alone
Flashlight - - Yes
GPS / Location - n/a n/a
Accessibility
Hearing Aid Compatible - - Yes
Multiple Languages Yes n/a n/a
TTY/TDD (Digital) - Yes -
Alerts
Extra Display - Yes -
Ringer Profiles Yes - -
Connectivity
Bluetooth Yes
Classic Audio
- Yes
Classic Audio
Infrared (IR) Yes Yes -
NFC - - Yes
USB Yes - Yes
USB Type C
Wi-Fi - - Yes
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID Yes n/a n/a
Ringer ID Yes n/a n/a
Voice Dialing - n/a n/a
Customization
Custom Graphics Yes n/a n/a
Custom Ringtones Yes n/a n/a
Data & Network
Data Tethering Yes n/a n/a
Dual-SIM - - Yes
WAP / Web Browser Yes n/a n/a
Input
Predictive Text Entry Yes n/a n/a
Side Keys Yes Yes Yes
Touch Screen - Yes Yes
Memory
Memory Card Slot Yes Yes Yes
Messaging
Email Client Yes n/a n/a
EMS / Picture Messaging Yes n/a n/a
MMS Yes n/a n/a
Music
Headphone Jack (3.5mm) - - Yes
Music Player Yes n/a n/a
Photo & Video
Miracast - - Yes
Power
Fast Charging - - Yes
Productivity
Alarm Yes n/a n/a
Calculator Yes n/a n/a
Calendar Yes n/a n/a
To-Do List Yes 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
Voice
Headset Jack (2.5 mm) - n/a n/a
Push-To-Talk Yes - -
Speaker Phone Yes - Yes
  Siemens CX75 Samsung SPH-i550 Asus ZenFone 4
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Phone Siemens CX75 Samsung SPH-i550 Asus ZenFone 4

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