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Phone Nokia 1661 Ericsson T28 World Coolpad Conjr Coolpad Defiant Ericsson T66
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 1.8" diag.
4 : 3
? 5" diag.
16 : 9
5" diag.
16 : 9
?
Display Resolution & Type 128 x 160 pixels
(~114 ppi)
LCD (TFT/TFD)
? 720 x 1280 pixels
(~294 ppi)
LCD (TFT/TFD)
480 x 854 pixels
(~196 ppi)
LCD (TFT/TFD)
?
Display Refresh ? ? 60 Hz 60 Hz ?
Battery 860 mAh 500 mAh 2,500 mAh 2,450 mAh ?
Processor ? ? 1 GHz MediaTek MT6735 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) ?
RAM ? ? 3 GB 1 GB ?
Storage ? raw hardware ? raw hardware 16 GB 8 GB ? raw hardware
Main Camera - - 13 megapixel 5 megapixel -
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - - 1080p HD 720p HD -
Front Camera - - 8 megapixel 2 megapixel -
Weight 2.9 oz
(82g)
3.14 oz
(89g)
5.14 oz
(146g)
6.5 oz
(184g)
2.08 oz
(59g)
Dimensions 4.25" x 1.8" x 0.53"
(108 x 46 x 13.5 mm)
3.9" x 2" x 0.6"
(99 x 51 x 15.2 mm)
5.72" x 2.86" x 0.35"
(145 x 73 x 8.8 mm)
5.69" x 2.81" x 0.4"
(145 x 71 x 10.2 mm)
3.62" x 1.61" x 0.69"
(92 x 41 x 17.5 mm)
Form Factor Slab Flip Slab Slab Slab
Platform / OS (proprietary) (proprietary) Android Android (proprietary)
Network Bands

GSM: 850, 1900

GSM: 900, 1900

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

WCDMA: 1, 2, 4, 5

GSM: 850, 900, 1800, 1900

4G LTE: 2, 4, 5, 12

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

Data Technology - - LTE (Cat 4) LTE (Cat 4) -
Features 
Fingerprint Reader - - Yes
stand-alone
- -
Flashlight Yes - Yes Yes -
Accessibility
Hearing Aid Compatible - - Yes Yes -
Multiple Languages - - n/a n/a Yes
TTY/TDD (Digital) - - Yes Yes -
Alerts
Ringer Profiles Yes Yes - - Yes
Connectivity
Bluetooth - - Yes
Classic Audio
Yes
Classic Audio
-
USB - - Yes
Micro-USB
Yes
Micro-USB
-
Wi-Fi - - Yes
4 (802.11 b,g,n)
Yes
4 (802.11 b,g,n)
-
Contacts
Voice Dialing - Yes n/a n/a -
Customization
Custom Graphics - - n/a n/a Yes
Custom Ringtones - Yes n/a n/a Yes
Data & Network
Data Tethering - Yes n/a n/a -
Dual-SIM - - Yes - -
WAP / Web Browser - - n/a n/a Yes
Input
Predictive Text Entry Yes - n/a n/a Yes
Side Keys - Yes Yes Yes Yes
Touch Screen - - Yes Yes -
Memory
Memory Card Slot - - Yes Yes -
Messaging
EMS / Picture Messaging - - n/a n/a Yes
Text Messaging Templates - - n/a n/a Yes
Music
FM Radio Yes - - - -
Headphone Jack (3.5mm) - - Yes Yes -
Productivity
Alarm Yes Yes n/a n/a Yes
Calculator Yes Yes n/a n/a Yes
Calendar Yes - n/a n/a Yes
To-Do List - - n/a n/a Yes
Voice Memo Yes - n/a n/a -
Software
Games Yes Yes n/a n/a Yes
Voice
Headset Jack (2.5 mm) Yes - n/a n/a -
Speaker Phone Yes - Yes Yes -
  Nokia 1661 Ericsson T28 World Coolpad Conjr Coolpad Defiant Ericsson T66
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Phone Nokia 1661 Ericsson T28 World Coolpad Conjr Coolpad Defiant Ericsson T66

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