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Phone LG K4 / Optimus Zone 3 / Rebel Coolpad Conjr Ericsson T66 ZTE Aspect Casio G'zOne Boulder
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 4.5" diag.
16 : 9
5" diag.
16 : 9
? 2.4" diag.
4 : 3
2" diag.
4 : 3
Display Resolution & Type 480 x 854 pixels
(~218 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~294 ppi)
LCD (TFT/TFD)
? 320 x 240 pixels
(~167 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~200 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz 60 Hz ? ? ?
Battery 1,940 mAh 2,500 mAh ? 1,000 mAh 810 mAh
Processor 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) 1 GHz MediaTek MT6735 ? 230 MHz Qualcomm QSC6270 ?
RAM 1.5 GB 3 GB ? 128 MB ?
Storage 16 GB * 16 GB ? raw hardware 256 MB ? raw hardware
Main Camera 5 megapixel 13 megapixel - 2 megapixel 1 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 720p HD 1080p HD - QVGA (320 x 240) ?
Front Camera 2 megapixel 8 megapixel - - -
Weight 3.99 oz
(113g)
5.14 oz
(146g)
2.08 oz
(59g)
3.7 oz
(105g)
4.9 oz
(139g)
Dimensions 5.19" x 2.62" x 0.35"
(132 x 67 x 8.9 mm)
5.72" x 2.86" x 0.35"
(145 x 73 x 8.8 mm)
3.62" x 1.61" x 0.69"
(92 x 41 x 17.5 mm)
4.55" x 2.4" x 0.45"
(116 x 61 x 11.4 mm)
3.9" x 2" x 0.9"
(99 x 51 x 22.9 mm)
Form Factor Slab Slab Slab Slab Clamshell
Platform / OS Android Android (proprietary) (proprietary) (proprietary)
Network Bands

4G LTE: 2, 4, 5, 13

WCDMA: 1, 2, 5

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

*

4G LTE: 2, 4, 5, 7, 12

WCDMA: 1, 2, 4, 5

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

WCDMA: 2, 4

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

Data Technology LTE (Cat 3) LTE (Cat 4) - WCDMA (UMTS) EVDO rA
Features 
Fingerprint Reader - Yes
stand-alone
- - -
Flashlight Yes Yes - - Yes
GPS / Location n/a n/a - Yes Yes
Ruggedized - - - - Yes
Water-Resistant - - - - Yes
Accessibility
Adjustable Text Size n/a n/a - - -
Hearing Aid Compatible Yes
M3, T3 (mostly tele-coil compatible)
Yes
M4, T4 (very tele-coil compatible)
- Yes
M3, T3 (mostly tele-coil compatible)
Yes
M4, T4 (very tele-coil compatible)
Multiple Languages n/a n/a Yes Yes Yes
TTY/TDD (Digital) Yes Yes - Yes Yes
Alerts
Extra Display - - - - Yes
Ringer Profiles - - Yes Yes -
Connectivity
Bluetooth Yes Yes - Yes Yes
Mobile Hotspot n/a n/a - - -
USB Yes
Micro-USB
Yes
Micro-USB
- Yes
Micro-USB
Yes
Wi-Fi Yes
4 (802.11 b,g,n)
Yes
4 (802.11 b,g,n)
- - -
Contacts
Picture ID n/a n/a - Yes Yes
Ringer ID n/a n/a - Yes Yes
Voice Dialing n/a n/a - - Yes
Customization
Changeable Body Plates - - - - Yes
Custom Graphics n/a n/a Yes Yes Yes
Custom Ringtones n/a n/a Yes Yes Yes
Real-Music Ringers n/a n/a - Yes -
Data & Network
Data Tethering n/a n/a - - Yes
Dual-SIM - Yes - - -
WAP / Web Browser n/a n/a Yes Yes Yes
Input
Predictive Text Entry n/a n/a Yes Yes Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - - Yes -
Touch Screen Yes
Capacitive
Yes
Capacitive
- - -
Memory
Memory Card Slot Yes Yes - Yes Yes
Messaging
Email Client n/a n/a - Yes -
EMS / Picture Messaging n/a n/a Yes - Yes
Instant Messaging n/a n/a - - -
MMS n/a n/a - Yes Yes
Text Messaging Templates n/a n/a Yes Yes Yes
Music
Headphone Jack (3.5mm) Yes Yes - Yes -
Music Player n/a n/a - Yes Yes
Photo & Video
Miracast Yes - - - -
Productivity
Alarm n/a n/a Yes Yes Yes
Calculator n/a n/a Yes Yes Yes
Calendar n/a n/a Yes Yes Yes
To-Do List n/a n/a Yes - -
Voice Memo n/a n/a - Yes Yes
Software
BREW n/a n/a - - Yes
Games n/a n/a Yes Yes Yes
Java (J2ME) n/a n/a - Yes -
Voice
HD Voice Yes * - - - -
Push-To-Talk - - - - Yes
Speaker Phone Yes Yes - Yes Yes
  * Some versions only
  LG K4 / Optimus Zone 3 / Rebel Coolpad Conjr Ericsson T66 ZTE Aspect Casio G'zOne Boulder
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone LG K4 / Optimus Zone 3 / Rebel Coolpad Conjr Ericsson T66 ZTE Aspect Casio G'zOne Boulder

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