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Phone Audiovox CDM-9900 Sony Ericsson Z550a Asus ZenFone AR Ericsson R278d
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 1.9" diag.
4 : 3
5.7" diag.
16 : 9
?
Display Resolution & Type 240 x 320 pixels
LCD (TFT/TFD)
176 x 220 pixels
(~148 ppi)
LCD (TFT/TFD)
1440 x 2560 pixels
(~515 ppi)
AMOLED
101 x 40 pixels
Display Refresh ? ? 60 Hz ?
Battery ? ? 3,300 mAh ?
Processor ? ? 2.4 GHz Qualcomm Snapdragon 821 (MSM8996) ?
RAM ? ? 6 GB * ?
Storage ? raw hardware ? raw hardware 128 GB * ? raw hardware
Main Camera Yes 1 megapixel 23 megapixel -
Wide Camera - - - -
Tele Camera - - - -
Video Capture ? ? 4K UHD -
Front Camera - - 8 megapixel -
Weight 4.09 oz
(116g)
3.26 oz
(92g)
6 oz
(170g)
9.28 oz
(263g)
Dimensions 3.66" x 1.89" x 0.95"
(93 x 48 x 24.1 mm)
3.43" x 1.77" x 0.79"
(87 x 45 x 20.1 mm)
6.24" x 3.05" x 0.3"
(158 x 77 x 7.6 mm)
5.1" x 2" x 1"
(130 x 51 x 25.4 mm)
Form Factor Clamshell Clamshell Slab Slab
Platform / OS (proprietary) (proprietary) Android (proprietary)
Network Bands

CDMA: 850, 1900

AMPS: 850

GSM: 850, 900, 1800, 1900

*

4G LTE: 2, 3, 4, 5, 7, 13, 20

WCDMA: 1, 2, 5, 8

GSM: 850, 900, 1800, 1900

*

TDMA: 850, 1900

AMPS: 850

Data Technology 1xRTT GPRS LTE (Cat 11) -
Features 
Barometer - - Yes -
Fingerprint Reader - - Yes
stand-alone
-
Flashlight - - Yes -
GPS / Location Yes - n/a -
VR-ready - - Yes -
Accessibility
Hearing Aid Compatible - - Yes
M4, T4 (very tele-coil compatible)
-
Multiple Languages Yes Yes n/a Yes
TTY/TDD (Digital) Yes Yes - -
Alerts
Extra Display Yes Yes - -
Ringer Profiles - Yes - Yes
Connectivity
Bluetooth - Yes Yes -
NFC - - Yes -
USB Yes Yes Yes
USB Type C
-
Wi-Fi - - Yes
5 (802.11 a,ac,b,g,n)
-
Contacts
Picture ID Yes Yes n/a -
Ringer ID Yes Yes n/a -
Voice Dialing Yes Yes n/a -
Customization
Custom Graphics Yes Yes n/a -
Custom Ringtones Yes Yes n/a Yes
Real-Music Ringers - Yes n/a -
Data & Network
Data Tethering Yes Yes n/a Yes
Dual-SIM - - Yes -
WAP / Web Browser Yes Yes n/a Yes
Input
Predictive Text Entry Yes Yes n/a Yes
Side Keys Yes Yes Yes Yes
Touch Screen - - Yes
Capacitive
-
Memory
Memory Card Slot - Yes Yes -
Messaging
Email Client - Yes n/a -
EMS / Picture Messaging Yes - n/a -
MMS Yes Yes n/a -
Text Messaging Templates Yes Yes n/a -
Music
FM Radio - Yes - -
Headphone Jack (3.5mm) - - Yes -
Music Player - Yes n/a -
Photo & Video
DLNA - - Yes -
Miracast - - Yes -
Power
Fast Charging - - Yes -
Productivity
Alarm Yes Yes n/a Yes
Calculator Yes Yes n/a -
Calendar Yes Yes n/a -
To-Do List Yes Yes n/a -
Voice Memo Yes Yes n/a -
Software
BREW Yes - n/a -
Games Yes Yes n/a -
Java (J2ME) - Yes n/a -
Voice
HD Voice - - Yes -
Headset Jack (2.5 mm) Yes - n/a -
Push-To-Talk - Yes * - -
Speaker Phone Yes Yes Yes -
  * Some versions only
  Audiovox CDM-9900 Sony Ericsson Z550a Asus ZenFone AR Ericsson R278d
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Phone Audiovox CDM-9900 Sony Ericsson Z550a Asus ZenFone AR Ericsson R278d

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