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Phone Samsung SGH-X640 Coolpad Defiant Samsung Glyde U940 Asus ZenFone 4 Nokia 1661
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 5" diag.
16 : 9
2.8" diag.
16.5 : 9
5.5" diag.
16 : 9
1.8" diag.
4 : 3
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
480 x 854 pixels
(~196 ppi)
LCD (TFT/TFD)
240 x 440 pixels
(~182 ppi)
LCD (TFT/TFD)
1080 x 1920 pixels
(~401 ppi)
LCD (TFT/TFD)
128 x 160 pixels
(~114 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? 60 Hz ?
Battery 800 mAh 2,450 mAh 1,000 mAh 3,300 mAh 860 mAh
Processor ? 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) ? 2.2 GHz Qualcomm Snapdragon 630 ?
RAM ? 1 GB ? 4 GB ?
Storage ? raw hardware 8 GB ? raw hardware 64 GB ? raw hardware
Main Camera Yes 5 megapixel 2 megapixel 12 megapixel -
Wide Camera - - - Yes -
Tele Camera - - - - -
Video Capture - 720p HD QVGA (320 x 240) 4K UHD -
Front Camera - 2 megapixel - 8 megapixel -
Weight 3 oz
(85g)
6.5 oz
(184g)
4.2 oz
(119g)
5.47 oz
(155g)
2.9 oz
(82g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
5.69" x 2.81" x 0.4"
(145 x 71 x 10.2 mm)
4.09" x 1.98" x 0.71"
(104 x 50 x 18 mm)
6.12" x 2.96" x 0.3"
(155 x 75 x 7.7 mm)
4.25" x 1.8" x 0.53"
(108 x 46 x 13.5 mm)
Form Factor Clamshell Slab Slide Slab Slab
Platform / OS (proprietary) Android (proprietary) Android (proprietary)
Network Bands

GSM: 900, 1800, 1900

4G LTE: 2, 4, 5, 12

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

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

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

GSM: 850, 1900

Data Technology GPRS LTE (Cat 4) EVDO r0 LTE (Cat 12) -
Features 
Fingerprint Reader - - - Yes
stand-alone
-
Flashlight - Yes - Yes Yes
GPS / Location - n/a Yes n/a -
Accessibility
Hearing Aid Compatible - Yes
M4, T3 (mostly tele-coil compatible)
Yes
M4 (very compatible)
Yes
M4, T3 (mostly tele-coil compatible)
-
Multiple Languages Yes n/a Yes n/a -
TTY/TDD (Digital) - Yes Yes - -
Alerts
Ringer Profiles - - - - Yes
Connectivity
Bluetooth - Yes Yes Yes -
NFC - - - Yes -
USB - Yes
Micro-USB
Yes Yes
USB Type C
-
Wi-Fi - Yes
4 (802.11 b,g,n)
- Yes
5 (802.11 a,ac,b,g,n)
-
Contacts
Picture ID Yes n/a Yes n/a -
Ringer ID Yes n/a Yes n/a -
Voice Dialing - n/a Yes n/a -
Customization
Custom Graphics Yes n/a Yes n/a -
Custom Ringtones Yes n/a Yes n/a -
Real-Music Ringers - n/a Yes n/a -
Data & Network
Data Tethering - n/a Yes n/a -
Dual-SIM - - - Yes -
WAP / Web Browser Yes n/a Yes n/a -
Input
Predictive Text Entry Yes n/a Yes n/a Yes
Side Keys Yes Yes Yes Yes -
Text Keyboard, Hardware - - Yes - -
Touch Screen - Yes
Capacitive
Yes Yes
Capacitive
-
Memory
Memory Card Slot - Yes Yes Yes -
Messaging
EMS / Picture Messaging Yes n/a - n/a -
MMS Yes n/a Yes n/a -
Text Messaging Templates Yes n/a Yes n/a -
Music
FM Radio - - - - Yes
Headphone Jack (3.5mm) - Yes - Yes -
Music Player - n/a Yes n/a -
Photo & Video
Miracast - - - Yes -
Power
Fast Charging - - - Yes -
Productivity
Alarm Yes n/a Yes n/a Yes
Calculator Yes n/a Yes n/a Yes
Calendar Yes n/a Yes n/a Yes
To-Do List Yes n/a - n/a -
Voice Memo Yes n/a - n/a Yes
Software
BREW - n/a Yes n/a -
Games Yes n/a Yes n/a Yes
Java (J2ME) Yes n/a - n/a -
Voice
Headset Jack (2.5 mm) Yes n/a Yes n/a Yes
Speaker Phone Yes Yes Yes Yes Yes
  Samsung SGH-X640 Coolpad Defiant Samsung Glyde U940 Asus ZenFone 4 Nokia 1661
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Phone Samsung SGH-X640 Coolpad Defiant Samsung Glyde U940 Asus ZenFone 4 Nokia 1661

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