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Phone Nokia 3555 Ericsson T66 Asus ZenFone 4 Coolpad Defiant
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 1.8" diag.
4 : 3
? 5.5" diag.
16 : 9
5" diag.
16 : 9
Display Resolution & Type 128 x 160 pixels
(~114 ppi)
LCD (TFT/TFD)
? 1080 x 1920 pixels
(~401 ppi)
LCD (TFT/TFD)
480 x 854 pixels
(~196 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz 60 Hz
Battery ? ? 3,300 mAh 2,450 mAh
Processor ? ? 2.2 GHz Qualcomm Snapdragon 630 1.4 GHz Qualcomm Snapdragon 425 (MSM8917)
RAM ? ? 4 GB 1 GB
Storage ? raw hardware ? raw hardware 64 GB 8 GB
Main Camera Yes - 12 megapixel 5 megapixel
Wide Camera - - Yes -
Tele Camera - - - -
Video Capture QCIF (176 x 144) - 4K UHD 720p HD
Front Camera - - 8 megapixel 2 megapixel
Weight 3.32 oz
(94g)
2.08 oz
(59g)
5.47 oz
(155g)
6.5 oz
(184g)
Dimensions 3.94" x 1.75" x 0.83"
(100 x 44 x 21 mm)
3.62" x 1.61" x 0.69"
(92 x 41 x 17.5 mm)
6.12" x 2.96" x 0.3"
(155 x 75 x 7.7 mm)
5.69" x 2.81" x 0.4"
(145 x 71 x 10.2 mm)
Form Factor Clamshell Slab Slab Slab
Platform / OS (proprietary) (proprietary) Android Android
Network Bands

WCDMA: 4

GSM: 850, 900, 1800, 1900

*

GSM: 900, 1800, 1900

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

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

4G LTE: 2, 4, 5, 12

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

Data Technology WCDMA (UMTS) - LTE (Cat 12) LTE (Cat 4)
Features 
Fingerprint Reader - - Yes
stand-alone
-
Flashlight - - Yes Yes
Accessibility
Hearing Aid Compatible Yes * - Yes Yes
Multiple Languages Yes Yes n/a n/a
TTY/TDD (Digital) - - - Yes
Alerts
Extra Display Yes - - -
Ringer Profiles Yes Yes - -
Connectivity
Bluetooth Yes - Yes Yes
NFC - - Yes -
USB Yes - Yes
USB Type C
Yes
Micro-USB
Wi-Fi - - Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 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
Customization
Custom Graphics Yes Yes n/a n/a
Custom Ringtones Yes Yes n/a n/a
Real-Music Ringers Yes - n/a n/a
Data & Network
Dual-SIM - - Yes -
WAP / Web Browser Yes Yes n/a n/a
Input
Predictive Text Entry Yes Yes n/a n/a
Side Keys Yes Yes Yes Yes
Touch Screen - - Yes Yes
Memory
Memory Card Slot Yes - Yes Yes
Messaging
EMS / Picture Messaging - Yes n/a n/a
Instant Messaging Yes * - n/a n/a
MMS Yes - n/a n/a
Text Messaging Templates Yes Yes n/a n/a
Music
Headphone Jack (3.5mm) - - Yes Yes
Music Player Yes - n/a n/a
Photo & Video
Miracast - - Yes -
Power
Fast Charging - - Yes -
Productivity
Alarm Yes Yes n/a n/a
Calculator Yes Yes n/a n/a
Calendar Yes Yes n/a n/a
To-Do List Yes Yes n/a n/a
Voice Memo Yes - n/a n/a
Software
Games Yes Yes n/a n/a
Java (J2ME) Yes - n/a n/a
Voice
Headset Jack (2.5 mm) Yes - n/a n/a
Speaker Phone Yes - Yes Yes
  * Some versions only
  Nokia 3555 Ericsson T66 Asus ZenFone 4 Coolpad Defiant
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Phone Nokia 3555 Ericsson T66 Asus ZenFone 4 Coolpad Defiant

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