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Phone Ericsson T66 Asus ROG Phone Coolpad Quattro 4G LG G4020 Nokia Lumia 635 (CDMA)
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 6" diag.
18 : 9
4" diag.
5 : 3
? 4.5" diag.
16 : 9
Display Resolution & Type ? 1080 x 2160 pixels
(~402 ppi)
AMOLED
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
128 x 128 pixels
LCD (STN)
480 x 854 pixels
(~218 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz 60 Hz ? ?
Battery ? 4,000 mAh 1,600 mAh 760 mAh 1,830 mAh
Processor ? 3 GHz Qualcomm Snapdragon 845 ? ? 1.2 GHz Qualcomm Snapdragon 400 (MSM8926)
RAM ? 8 GB ? ? 512 MB
Storage ? raw hardware 128 GB * 512 MB ? raw hardware 8 GB
Main Camera - 12 megapixel 3 megapixel - 5 megapixel
Wide Camera - 8 megapixel - - -
Tele Camera - - - - -
Video Capture - 4K UHD VGA (640 x 480) - 720p HD
Front Camera - 8 megapixel Yes - -
Weight 2.08 oz
(59g)
7.05 oz
(200g)
3.31 oz
(94g)
3 oz
(85g)
4.73 oz
(134g)
Dimensions 3.62" x 1.61" x 0.69"
(92 x 41 x 17.5 mm)
6.25" x 3" x 0.34"
(159 x 76 x 8.6 mm)
4.96" x 2.6" x 0.51"
(126 x 66 x 13 mm)
3.19" x 1.69" x 0.82"
(81 x 43 x 20.8 mm)
5.1" x 2.63" x 0.36"
(130 x 67 x 9.1 mm)
Form Factor Slab Slab Slab Clamshell Slab
Platform / OS (proprietary) Android Android (proprietary) Windows
Network Bands

GSM: 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 28, 29, 32, 34, 38, 39, 40, 41, 46

WCDMA: 1, 2, 3, 4, 5, 8, 19

GSM: 850, 900, 1800, 1900

4G LTE: 2, 4

CDMA: 850, 1700, 1900

GSM: 850, 1900

4G LTE: 25, 26, 41

WCDMA: 1, 2, 5

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

Data Technology - LTE (Cat 16) LTE (Cat 3) GPRS LTE (Cat 3)
Features 
Fingerprint Reader - Yes - - -
Flashlight - Yes - - -
GPS / Location - n/a n/a - n/a
Water-Resistant - Yes - - -
Accessibility
Hearing Aid Compatible - Yes Yes - Yes
Multiple Languages Yes n/a n/a Yes n/a
TTY/TDD (Digital) - - Yes Yes Yes
Alerts
Extra Display - - - Yes -
Ringer Profiles Yes - - - -
Connectivity
Bluetooth - Yes Yes - Yes
Mobile Hotspot - n/a n/a - n/a
NFC - Yes - - -
USB - Yes
USB Type C
Yes - Yes
Micro-USB
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
Yes - Yes
4 (802.11 b,g,n)
Contacts
Picture ID - n/a n/a Yes n/a
Ringer ID - n/a n/a Yes n/a
Voice Dialing - n/a n/a - n/a
Customization
Custom Graphics Yes n/a n/a Yes n/a
Custom Ringtones Yes n/a n/a Yes n/a
Real-Music Ringers - n/a n/a - n/a
Data & Network
Data Tethering - n/a n/a Yes n/a
Dual-SIM - Yes - - -
WAP / Web Browser Yes n/a n/a Yes n/a
Input
Predictive Text Entry Yes n/a n/a Yes n/a
Side Keys Yes Yes Yes Yes Yes
Touch Screen - Yes Yes - Yes
Memory
Memory Card Slot - - Yes - Yes
Messaging
Email Client - n/a n/a - n/a
EMS / Picture Messaging Yes n/a n/a Yes n/a
Instant Messaging - n/a n/a - n/a
MMS - n/a n/a Yes n/a
Text Messaging Templates Yes n/a n/a Yes n/a
Music
FM Radio - Yes - - Yes
Headphone Jack (3.5mm) - Yes Yes - Yes
Music Player - n/a n/a - n/a
Stereo Speakers - Yes - - -
Photo & Video
DLNA - - - - Yes
TV Output - Yes - - -
Power
Fast Charging - Yes - - -
Productivity
Alarm Yes n/a n/a Yes n/a
Calculator Yes n/a n/a Yes n/a
Calendar Yes n/a n/a Yes n/a
To-Do List Yes n/a n/a - n/a
Voice Memo - n/a n/a - n/a
Software
Games Yes n/a n/a Yes n/a
Java (J2ME) - n/a n/a Yes n/a
Voice
Headset Jack (2.5 mm) - n/a n/a Yes n/a
Speaker Phone - Yes Yes - Yes
  * Some versions only
  Ericsson T66 Asus ROG Phone Coolpad Quattro 4G LG G4020 Nokia Lumia 635 (CDMA)
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Ericsson T66 Asus ROG Phone Coolpad Quattro 4G LG G4020 Nokia Lumia 635 (CDMA)

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