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Phone Samsung SGH-X820 Samsung SPH-i550 ZTE Speed Samsung Galaxy Rush
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Not yet released Released Released
Specifications 
Display Size ? ? 4.5" diag.
16 : 9
3.5" diag.
5 : 3
Display Resolution & Type 220 x 176 pixels
LCD (TFT/TFD)
320 x 320 pixels
LCD (TFT/TFD)
540 x 960 pixels
(~245 ppi)
LCD (TFT/TFD)
320 x 480 pixels
(~165 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz 60 Hz
Battery 650 mAh ? 2,000 mAh 1,750 mAh
Processor ? 200 MHz Motorola MX-1 1.2 GHz Qualcomm Snapdragon 410 MSM8916 1 GHz Qualcomm MSM8655
RAM ? ? 1 GB 768 MB
Storage ? raw hardware ? raw hardware 8 GB 4 GB
Main Camera 2 megapixel 1 megapixel 5 megapixel 3 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture ? ? 720p HD VGA (640 x 480)
Front Camera - - 2 megapixel 1 megapixel
Weight 2.33 oz
(66g)
? 4.8 oz
(136g)
4.2 oz
(119g)
Dimensions 4.45" x 1.97" x 0.27"
(113 x 50 x 6.9 mm)
3.46" x 2.34" x 1.1"
(88 x 59 x 27.9 mm)
5.3" x 2.6" x 0.4"
(135 x 66 x 10.2 mm)
4.84" x 2.36" x 0.47"
(123 x 60 x 11.9 mm)
Form Factor Slab Clamshell Slab Slab
Platform / OS (proprietary) Palm OS Android Android
Network Bands

GSM: 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

4G LTE: 25, 26, 41

CDMA: 800, 850, 1900

CDMA: 1900

Data Technology EDGE 1xRTT LTE (Cat 3) EVDO rA
Features 
GPS / Location - n/a n/a n/a
Accessibility
Adjustable Text Size - n/a n/a n/a
Hearing Aid Compatible - - Yes Yes
Multiple Languages Yes n/a n/a n/a
TTY/TDD (Digital) - Yes Yes Yes
Alerts
Extra Display - Yes - -
Connectivity
Bluetooth Yes - Yes Yes
Infrared (IR) - Yes - -
Mobile Hotspot - n/a n/a n/a
USB Yes - Yes
Micro-USB
Yes
Wi-Fi - - Yes
4 (802.11 b,g,n)
Yes
4 (802.11 a,b,g,n)
Contacts
Picture ID Yes n/a n/a n/a
Ringer ID Yes n/a n/a n/a
Voice Dialing - 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 - n/a n/a n/a
External Antenna Jack 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
Touch Screen - Yes Yes Yes
Memory
Memory Card Slot - Yes Yes Yes
Messaging
Email Client Yes 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
Music Player - n/a n/a n/a
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 Yes n/a n/a n/a
Voice Memo Yes n/a n/a n/a
Software
Games Yes n/a n/a n/a
Java (J2ME) Yes n/a n/a n/a
Voice
HD Voice - - Yes -
Headset Jack (2.5 mm) - n/a n/a n/a
Speaker Phone Yes - Yes Yes
  Samsung SGH-X820 Samsung SPH-i550 ZTE Speed Samsung Galaxy Rush
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Phone Samsung SGH-X820 Samsung SPH-i550 ZTE Speed Samsung Galaxy Rush

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