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Phone Nokia N78 ZTE Prelude / Avail 2 Nokia 6170 Samsung SCH-A990
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 2.4" diag.
4 : 3
3.5" diag.
5 : 3
? ?
Display Resolution & Type 240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
320 x 480 pixels
(~165 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? ?
Battery 1,200 mAh 1,500 mAh 760 mAh 1,000 mAh
Processor 369 MHz ARM 11 1 GHz Qualcomm Snapdragon MSM7225A ? ?
RAM ? 512 MB ? ?
Storage ? raw hardware 4 GB ? raw hardware ? raw hardware
Main Camera 3 megapixel 2 megapixel Yes 3 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture VGA (640 x 480) VGA (640 x 480) ? ?
Front Camera - - - -
Weight 3.59 oz
(102g)
4.4 oz
(125g)
4.34 oz
(123g)
4.4 oz
(125g)
Dimensions 4.45" x 1.93" x 0.59"
(113 x 49 x 15.1 mm)
4.6" x 2.44" x 0.45"
(117 x 62 x 11.4 mm)
3.46" x 1.81" x 0.94"
(88 x 46 x 23.9 mm)
3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
Form Factor Slab Slab Clamshell Clamshell
Platform / OS S60 (Symbian) Android (proprietary) (proprietary)
Network Bands

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

*

WCDMA: 2, 5

GSM: 850, 1900

GSM: 850, 1800, 1900

*

CDMA: 850, 1900

Data Technology HSDPA 3.6 HSPA 7.2 EDGE EVDO r0
Features 
Flashlight - - - Yes
GPS / Location n/a n/a - Yes
Accessibility
Adjustable Text Size n/a n/a - -
Hearing Aid Compatible - Yes - Yes
Multiple Languages n/a n/a Yes Yes
TTY/TDD (Digital) - Yes Yes Yes
Alerts
Extra Display - - Yes Yes
Ringer Profiles Yes - Yes -
Connectivity
Bluetooth Yes Yes - Yes
Infrared (IR) - - Yes -
USB Yes
Micro-USB
Yes Yes Yes
Wi-Fi Yes
802.11 b,g
Yes
4 (802.11 b,g,n)
- -
Contacts
Picture ID n/a n/a Yes Yes
Ringer ID n/a n/a - Yes
Voice Dialing n/a n/a Yes Yes
Customization
Custom Graphics n/a n/a Yes Yes
Custom Ringtones n/a n/a Yes Yes
Real-Music Ringers n/a n/a - Yes
Data & Network
Data Tethering n/a n/a Yes Yes
WAP / Web Browser n/a n/a Yes Yes
Input
Predictive Text Entry n/a n/a Yes Yes
Side Keys Yes Yes Yes Yes
Touch Screen - Yes - -
Memory
Memory Card Slot 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 Yes -
MMS n/a n/a Yes Yes
Text Messaging Templates n/a n/a Yes Yes
Music
FM Radio Yes - - -
FM Transmitter n/a n/a - -
Headphone Jack (3.5mm) Yes Yes - -
Music Player n/a n/a - Yes
Stereo Speakers Yes - - Yes
Photo & Video
TV Output Yes - - Yes
Video Calling n/a n/a - -
Productivity
Alarm n/a n/a Yes Yes
Calculator n/a n/a Yes Yes
Calendar n/a n/a 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
Java (J2ME) n/a n/a Yes -
Voice
Push-To-Talk Yes * - Yes -
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  Nokia N78 ZTE Prelude / Avail 2 Nokia 6170 Samsung SCH-A990
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Phone Nokia N78 ZTE Prelude / Avail 2 Nokia 6170 Samsung SCH-A990

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