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Phone Nokia 1661 Samsung Galaxy S6 (GSM) Sony Ericsson T68i Samsung Heat BlackBerry 7750
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 1.8" diag.
4 : 3
5.1" diag.
16 : 9
? ? ?
Display Resolution & Type 128 x 160 pixels
(~114 ppi)
LCD (TFT/TFD)
1440 x 2560 pixels
(~576 ppi)
AMOLED
101 x 80 pixels
LCD (STN)
240 x 320 pixels
LCD (TFT/TFD)
240 x 240 pixels
LCD (Color)
Display Refresh ? 60 Hz ? ? ?
Battery 860 mAh 2,550 mAh 700 mAh 800 mAh ?
Processor ? 2.1 GHz Samsung Exynos 7420 ? ? ?
RAM ? 3 GB ? ? ?
Storage ? raw hardware 32 GB * ? raw hardware ? raw hardware ? raw hardware
Main Camera - 16 megapixel - 1 megapixel -
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - 4K UHD - ? -
Front Camera - 5 megapixel - - -
Weight 2.9 oz
(82g)
4.87 oz
(138g)
2.96 oz
(84g)
3.17 oz
(90g)
5.01 oz
(142g)
Dimensions 4.25" x 1.8" x 0.53"
(108 x 46 x 13.5 mm)
5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
3.94" x 1.89" x 0.79"
(100 x 48 x 20.1 mm)
3.6" x 1.8" x 0.6"
(91 x 46 x 15.2 mm)
4.76" x 3.03" x 0.71"
(121 x 77 x 18 mm)
Form Factor Slab Slab Slab Slide Slab
Platform / OS (proprietary) Android (proprietary) (proprietary) BlackBerry OS
Network Bands

GSM: 850, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 29, 30

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

GSM: 900, 1800, 1900

CDMA: 850, 1900

CDMA: 850, 1900

Data Technology - LTE (Cat 6) GPRS EVDO r0 1xRTT
Features 
Fingerprint Reader - Yes - - -
Flashlight Yes Yes - - -
GPS / Location - n/a - Yes n/a
VR-ready - Yes - - -
Accessibility
Adjustable Text Size - n/a - Yes n/a
Hearing Aid Compatible - Yes - Yes -
Multiple Languages - n/a Yes Yes n/a
TTY/TDD (Digital) - Yes - Yes Yes
Alerts
Ringer Profiles Yes - Yes - Yes
Connectivity
Bluetooth - Yes Yes Yes -
Infrared (IR) - Yes Yes - -
MirrorLink - Yes - - -
NFC - Yes - - -
USB - Yes
Micro-USB
- Yes Yes
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
- - -
Contacts
Picture ID - n/a Yes Yes n/a
Ringer ID - n/a Yes Yes n/a
Voice Dialing - n/a Yes - n/a
Customization
Custom Graphics - n/a Yes Yes n/a
Custom Ringtones - n/a Yes Yes n/a
Real-Music Ringers - n/a - Yes n/a
Data & Network
Data Tethering - n/a Yes - n/a
WAP / Web Browser - n/a Yes Yes n/a
Input
Predictive Text Entry Yes n/a Yes Yes n/a
Side Keys - Yes Yes Yes Yes
Text Keyboard, Hardware - - - - Yes
Touch Screen - Yes - - -
Messaging
Email Client - n/a Yes - n/a
EMS / Picture Messaging - n/a Yes - n/a
MMS - n/a Yes Yes n/a
Text Messaging Templates - n/a Yes Yes n/a
Music
FM Radio Yes - - - -
Headphone Jack (3.5mm) - Yes - - -
Music Player - n/a - Yes n/a
Photo & Video
DLNA - Yes - - -
Miracast - Yes - - -
TV Output - Yes - - -
Power
Fast Charging - Yes - - -
Wireless Charging - Yes - - -
Productivity
Alarm Yes n/a Yes Yes n/a
Calculator Yes n/a Yes Yes n/a
Calendar Yes n/a Yes Yes n/a
To-Do List - n/a Yes Yes n/a
Voice Memo Yes n/a Yes Yes n/a
Software
Games Yes n/a Yes Yes n/a
Java (J2ME) - n/a - - n/a
Voice
HD Voice - Yes - - -
Headset Jack (2.5 mm) Yes n/a - - n/a
Speaker Phone Yes Yes - Yes -
  Nokia 1661 Samsung Galaxy S6 (GSM) Sony Ericsson T68i Samsung Heat BlackBerry 7750
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Nokia 1661 Samsung Galaxy S6 (GSM) Sony Ericsson T68i Samsung Heat BlackBerry 7750

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