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Phone Samsung SPH-i550 Palm Pre 2 (GSM) LG Optimus Zone Samsung Galaxy Ring / Prevail 2
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Not yet released Released Released Released
Specifications 
Display Size ? 3.1" diag.
5 : 3
3.2" diag.
4 : 3
4" diag.
5 : 3
Display Resolution & Type 320 x 320 pixels
LCD (TFT/TFD)
320 x 480 pixels
(~186 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~125 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz 60 Hz
Battery ? 1,150 mAh 1,540 mAh 1,750 mAh
Processor 200 MHz Motorola MX-1 1 GHz TI 3630 800 MHz Qualcomm Snapdragon S1 MSM7625A 1.4 GHz Qualcomm Snapdragon S2 MSM8655
RAM ? ? 512 MB 1 GB
Storage ? raw hardware ? raw hardware 4 GB 4 GB
Main Camera 1 megapixel 5 megapixel 3 megapixel 5 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture ? VGA (640 x 480) VGA (640 x 480) 720p HD
Front Camera - - - 1 megapixel
Weight ? 5.1 oz
(145g)
3.88 oz
(110g)
3.4 oz
(96g)
Dimensions 3.46" x 2.34" x 1.1"
(88 x 59 x 27.9 mm)
3.96" x 2.35" x 0.67"
(101 x 60 x 17 mm)
4.04" x 2.42" x 0.47"
(103 x 61 x 11.9 mm)
4.83" x 2.48" x 0.47"
(123 x 63 x 11.9 mm)
Platform / OS Palm OS webOS Android Android
Network Bands

CDMA: 850, 1900

AMPS: 850

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

CDMA: 800, 850, 1900

Data Technology 1xRTT HSDPA 3.6 EVDO rA EVDO rA
Features 
Accessibility
Hearing Aid Compatible - - Yes Yes
TTY/TDD (Digital) Yes Yes Yes Yes
Alerts
Extra Display Yes - - -
Connectivity
Bluetooth - Yes Yes Yes
Infrared (IR) Yes - - -
USB - Yes
Micro-USB
Yes
Micro-USB
Yes
Wi-Fi - Yes
802.11 b,g
Yes
4 (802.11 b,g,n)
Yes
4 (802.11 a,b,g,n)
Input
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware - Yes - -
Touch Screen Yes Yes Yes Yes
Memory
Memory Card Slot Yes - Yes Yes
Music
Headphone Jack (3.5mm) - Yes Yes Yes
Photo & Video
DLNA - - - Yes
Voice
Speaker Phone - Yes Yes Yes
  Samsung SPH-i550 Palm Pre 2 (GSM) LG Optimus Zone Samsung Galaxy Ring / Prevail 2
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SPH-i550 Palm Pre 2 (GSM) LG Optimus Zone Samsung Galaxy Ring / Prevail 2

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