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Phone Samsung SCH-A990 AT&T Maestro 3 Palm Treo Pro (CDMA) BlackBerry Curve 8330
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 6.5" diag.
20 : 9
? ?
Display Resolution & Type 240 x 320 pixels
LCD (TFT/TFD)
720 x 1600 pixels
(~270 ppi)
LCD (TFT/TFD)
320 x 320 pixels
LCD (TFT/TFD)
320 x 240 pixels
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? ?
Battery 1,000 mAh 3,900 mAh 1,500 mAh 1,150 mAh
Processor ? 2 GHz MediaTek Helio A22 (MT6761) 528 MHz Qualcomm MSM7501a ?
RAM ? 3 GB ? ?
Storage ? raw hardware 32 GB ? raw hardware ? raw hardware
Main Camera 3 megapixel 13 megapixel 2 megapixel 2 megapixel
Wide Camera - 5 megapixel - -
Tele Camera - - - -
Video Capture ? 1080p HD ? ?
Front Camera - 5 megapixel - -
Weight 4.4 oz
(125g)
6.24 oz
(177g)
4.69 oz
(133g)
4.02 oz
(114g)
Dimensions 3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
6.58" x 3.03" x 0.33"
(167 x 77 x 8.4 mm)
4.49" x 2.36" x 0.53"
(114 x 60 x 13.5 mm)
4.2" x 2.4" x 0.6"
(107 x 61 x 15.2 mm)
Form Factor Clamshell Slab Slab Slab
Platform / OS (proprietary) Android Windows Mobile Professional BlackBerry OS
Network Bands

CDMA: 850, 1900

4G LTE: 2, 4, 5, 12, 14, 30

CDMA: 850, 1900

CDMA: 850, 1900

Data Technology EVDO r0 LTE (Cat 4) EVDO rA EVDO r0
Features 
Barometer - Yes - -
Fingerprint Reader - Yes
stand-alone
- -
Flashlight Yes Yes - -
GPS / Location Yes n/a n/a n/a
Accessibility
Adjustable Text Size - n/a n/a n/a
Hearing Aid Compatible Yes Yes Yes Yes
Multiple Languages Yes n/a n/a n/a
TTY/TDD (Digital) Yes - Yes Yes
Alerts
Extra Display Yes - - -
Ringer Profiles - - - Yes
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) - - Yes -
USB Yes Yes
USB Type C
Yes
Micro-USB
Yes
Mini-USB
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
Yes
802.11 b,g
-
Contacts
Picture ID Yes n/a n/a n/a
Ringer ID Yes n/a n/a n/a
Voice Dialing Yes n/a n/a n/a
Customization
Custom Graphics Yes n/a n/a n/a
Custom Ringtones Yes n/a n/a n/a
Real-Music Ringers Yes n/a n/a n/a
Data & Network
Data Tethering Yes n/a n/a n/a
WAP / Web Browser Yes n/a n/a n/a
Input
Predictive Text Entry Yes n/a n/a n/a
Side Keys Yes Yes Yes Yes
Stylus - - Yes -
Text Keyboard, Hardware - - Yes Yes
Touch Screen - Yes Yes -
Memory
Memory Card Slot Yes Yes Yes Yes
Messaging
Email Client - n/a n/a n/a
EMS / Picture Messaging Yes n/a n/a n/a
Instant Messaging - n/a n/a n/a
MMS Yes n/a n/a n/a
Text Messaging Templates Yes n/a n/a n/a
Music
Headphone Jack (3.5mm) - Yes Yes Yes
Music Player Yes n/a n/a n/a
Stereo Speakers Yes - - -
Photo & Video
TV Output Yes - - -
Productivity
Alarm Yes n/a n/a n/a
Calculator Yes n/a n/a n/a
Calendar Yes n/a n/a n/a
To-Do List - n/a n/a n/a
Voice Memo Yes n/a n/a n/a
Software
BREW Yes n/a n/a n/a
Games Yes n/a n/a n/a
Java (J2ME) - n/a n/a n/a
Voice
HD Voice - Yes - -
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  Samsung SCH-A990 AT&T Maestro 3 Palm Treo Pro (CDMA) BlackBerry Curve 8330
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Phone Samsung SCH-A990 AT&T Maestro 3 Palm Treo Pro (CDMA) BlackBerry Curve 8330

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