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Phone Nokia 1661 Huawei M750 Samsung SGH-E640
Current U.S. Carriers (none) (none) (none)
Global Availability Released Released Released
Specifications 
Display Size 1.8" diag.
4 : 3
2.8" diag.
4 : 3
?
Display Resolution & Type 128 x 160 pixels
(~114 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~143 ppi)
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
Display Refresh ? ? ?
Battery 860 mAh 1,150 mAh 800 mAh
Processor ? ? ?
RAM ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware
Main Camera - 1 megapixel 1 megapixel
Wide Camera - - -
Tele Camera - - -
Video Capture - - QCIF (176 x 144)
Front Camera - - -
Weight 2.9 oz
(82g)
3.92 oz
(111g)
3.17 oz
(90g)
Dimensions 4.25" x 1.8" x 0.53"
(108 x 46 x 13.5 mm)
4.21" x 2.25" x 0.59"
(107 x 57 x 14.9 mm)
3.37" x 1.78" x 0.93"
(86 x 45 x 23.6 mm)
Form Factor Slab Slab Clamshell
Platform / OS (proprietary) (proprietary) (proprietary)
Network Bands

GSM: 850, 1900

CDMA: 850, 1700, 1900

GSM: 900, 1800, 1900

Data Technology - 1xRTT GPRS
Features 
Flashlight Yes - -
GPS / Location - Yes -
Accessibility
Hearing Aid Compatible - Yes
M3 (mostly compatible)
-
Multiple Languages - - Yes
TTY/TDD (Digital) - Yes -
Alerts
Extra Display - - Yes
Ringer Profiles Yes - -
Connectivity
Bluetooth - Yes Yes
USB - Yes Yes
Contacts
Picture ID - Yes Yes
Ringer ID - Yes Yes
Customization
Custom Graphics - Yes Yes
Custom Ringtones - Yes Yes
Real-Music Ringers - - Yes
Data & Network
WAP / Web Browser - Yes Yes
Input
Predictive Text Entry Yes - Yes
Side Keys - Yes Yes
Stylus - Yes -
Touch Screen - Yes
Resistive
-
Memory
Memory Card Slot - Yes -
Messaging
Email Client - Yes Yes
EMS / Picture Messaging - - Yes
Instant Messaging - Yes -
MMS - Yes Yes
Text Messaging Templates - Yes Yes
Music
FM Radio Yes - -
Headphone Jack (3.5mm) - Yes -
Music Player - Yes Yes
Productivity
Alarm Yes Yes Yes
Calculator Yes Yes Yes
Calendar Yes Yes Yes
To-Do List - - Yes
Voice Memo Yes Yes Yes
Software
BREW - Yes -
Games Yes Yes Yes
Java (J2ME) - - Yes
Voice
Headset Jack (2.5 mm) Yes - -
Speaker Phone Yes Yes Yes
  Nokia 1661 Huawei M750 Samsung SGH-E640
  X > < X > < X

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Phone Nokia 1661 Huawei M750 Samsung SGH-E640

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