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Phone Samsung SCH-A990 Samsung Jitterbug J / SPH-A310 Nokia 2651 HP iPAQ 610 Business Navigator Samsung Droid Charge
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Not yet released Released
Specifications 
Display Size ? 2.1" diag.
4 : 3
? 2.8" diag.
4 : 3
4.3" diag.
5 : 3
Display Resolution & Type 240 x 320 pixels
LCD (TFT/TFD)
176 x 220 pixels
(~134 ppi)
LCD (Color)
128 x 128 pixels
LCD (STN)
240 x 320 pixels
(~143 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~217 ppi)
AMOLED
Display Refresh ? ? ? ? 60 Hz
Battery 1,000 mAh ? 760 mAh 1,590 mAh 1,500 mAh
Processor ? ? ? 520 MHz Marvell PXA270 1 GHz Samsung Hummingbird
RAM ? ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera 3 megapixel - - 3 megapixel 8 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture ? - - QCIF (176 x 144) 720p HD
Front Camera - - - - 1 megapixel
Weight 4.4 oz
(125g)
3.99 oz
(113g)
3.4 oz
(96g)
5.1 oz
(145g)
5.06 oz
(144g)
Dimensions 3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
3.87" x 2.16" x 0.97"
(98 x 55 x 24.6 mm)
3.35" x 1.81" x 0.9"
(85 x 46 x 22.9 mm)
4.61" x 2.37" x 0.69"
(117 x 60 x 17.5 mm)
5.1" x 2.68" x 0.46"
(130 x 68 x 11.7 mm)
Form Factor Clamshell Clamshell Clamshell Slab Slab
Platform / OS (proprietary) (proprietary) (proprietary) Windows Mobile Professional Android
Network Bands

CDMA: 850, 1900

CDMA: 850, 1900

GSM: 850, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

4G LTE: 13

CDMA: 850, 1900

Data Technology EVDO r0 - GPRS HSPA 7.2 LTE (Cat 3)
Features 
Flashlight Yes - - - -
GPS / Location Yes Yes - n/a n/a
Accessibility
Hearing Aid Compatible Yes
M3 (mostly compatible)
Yes
M4, T4 (very tele-coil compatible)
- - Yes
M4, T4 (very tele-coil compatible)
Multiple Languages Yes - Yes n/a n/a
TTY/TDD (Digital) Yes - - - Yes
Alerts
Extra Display Yes Yes - - -
Connectivity
Bluetooth Yes Yes - Yes Yes
Mobile Hotspot - - - n/a n/a
USB Yes - - Yes
Mini-USB
Yes
Micro-USB
Wi-Fi - - - Yes
802.11 b,g
Yes
4 (802.11 b,g,n)
Contacts
Picture ID Yes - - n/a n/a
Ringer ID Yes - - n/a n/a
Voice Dialing Yes Yes - n/a n/a
Customization
Custom Graphics Yes - Yes n/a n/a
Custom Ringtones Yes - Yes n/a n/a
Real-Music Ringers Yes - - n/a n/a
Data & Network
Data Tethering Yes - - n/a n/a
WAP / Web Browser Yes - Yes n/a n/a
Input
Predictive Text Entry Yes - Yes n/a n/a
Side Keys Yes Yes - Yes Yes
Touch Screen - - - Yes Yes
Capacitive
Memory
Memory Card Slot Yes - - Yes Yes
Messaging
Email Client - - Yes n/a n/a
EMS / Picture Messaging Yes - Yes n/a n/a
Instant Messaging - - - n/a n/a
MMS Yes - Yes n/a n/a
Text Messaging Templates Yes Yes - n/a n/a
Music
Headphone Jack (3.5mm) - - - - Yes
Music Player Yes - - n/a n/a
Stereo Speakers Yes - - - -
Photo & Video
DLNA - - - - Yes
TV Output Yes - - - Yes
Video Calling - - - n/a n/a
Productivity
Alarm Yes - Yes n/a n/a
Calculator Yes - Yes n/a n/a
Calendar Yes - Yes n/a n/a
To-Do List - - - n/a n/a
Voice Memo Yes - - n/a n/a
Software
BREW Yes - - n/a n/a
Games Yes - Yes n/a n/a
Java (J2ME) - - Yes n/a n/a
Voice
Speaker Phone Yes Yes - Yes Yes
  Samsung SCH-A990 Samsung Jitterbug J / SPH-A310 Nokia 2651 HP iPAQ 610 Business Navigator Samsung Droid Charge
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SCH-A990 Samsung Jitterbug J / SPH-A310 Nokia 2651 HP iPAQ 610 Business Navigator Samsung Droid Charge

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