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Phone BlackBerry Curve 8320 AT&T Maestro 3 Samsung SPH-I300 Samsung SPH-i550
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Not yet released
Specifications 
Display Size ? 6.5" diag.
20 : 9
? ?
Display Resolution & Type 320 x 240 pixels
LCD (TFT/TFD)
720 x 1600 pixels
(~270 ppi)
LCD (TFT/TFD)
160 x 240 pixels
LCD (Color)
320 x 320 pixels
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? ?
Battery 1,100 mAh 3,900 mAh ? ?
Processor ? 2 GHz MediaTek Helio A22 (MT6761) ? 200 MHz Motorola MX-1
RAM ? 3 GB ? ?
Storage ? raw hardware 32 GB ? raw hardware ? raw hardware
Main Camera 2 megapixel 13 megapixel - 1 megapixel
Wide Camera - 5 megapixel - -
Tele Camera - - - -
Video Capture - 1080p HD - ?
Front Camera - 5 megapixel - -
Weight 3.92 oz
(111g)
6.24 oz
(177g)
6 oz
(170g)
?
Dimensions 4.21" x 2.36" x 0.61"
(107 x 60 x 15.5 mm)
6.58" x 3.03" x 0.33"
(167 x 77 x 8.4 mm)
4.9" x 2.28" x 0.82"
(124 x 58 x 20.8 mm)
3.46" x 2.34" x 1.1"
(88 x 59 x 27.9 mm)
Platform / OS BlackBerry OS Android Palm OS Palm OS
Network Bands

GSM: 850, 900, 1800, 1900

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

CDMA: 1900

AMPS: 850

CDMA: 850, 1900

AMPS: 850

Data Technology EDGE LTE (Cat 4) - 1xRTT
Features 
Barometer - Yes - -
Fingerprint Reader - Yes
stand-alone
- -
Flashlight - Yes - -
Accessibility
Hearing Aid Compatible Yes Yes - -
TTY/TDD (Digital) Yes - - Yes
Alerts
Extra Display - - Yes Yes
Ringer Profiles Yes - - -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
- -
Infrared (IR) - - Yes Yes
USB Yes Yes
USB Type C
- -
Wi-Fi Yes
802.11 b,g
Yes
5 (802.11 a,ac,b,g,n)
- -
Input
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware Yes - - -
Touch Screen - Yes Yes Yes
Memory
Memory Card Slot Yes Yes - Yes
Music
Headphone Jack (3.5mm) Yes Yes - -
Voice
HD Voice - Yes - -
Speaker Phone Yes Yes Yes -
  BlackBerry Curve 8320 AT&T Maestro 3 Samsung SPH-I300 Samsung SPH-i550
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone BlackBerry Curve 8320 AT&T Maestro 3 Samsung SPH-I300 Samsung SPH-i550

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