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Phone Nokia N900 Samsung SGH-A157 Samsung SCH-R211
Current U.S. Carriers (none) (none) (none)
Global Availability Released Released Released
Specifications 
Display Size 3.5" diag.
5 : 3
1.8" diag.
4 : 3
1.5" diag.
1 : 1
Display Resolution & Type 800 x 480 pixels
(~267 ppi)
LCD (TFT/TFD)
128 x 160 pixels
(~116 ppi)
LCD (TFT/TFD)
128 x 128 pixels
(~121 ppi)
LCD (STN)
Display Refresh ? ? ?
Battery 1,320 mAh 800 mAh 800 mAh
Processor 600 MHz TI OMAP 3430 (ARM Cortex-A8) ? ?
RAM ? ? ?
Storage ? raw hardware 256 MB ? raw hardware
Main Camera 5 megapixel - -
Wide Camera - - -
Tele Camera - - -
Video Capture ? - -
Front Camera - - -
Weight 6.38 oz
(181g)
2.99 oz
(85g)
2.73 oz
(77g)
Dimensions 4.36" x 2.35" x 0.69"
(111 x 60 x 17.6 mm)
3.83" x 1.84" x 0.65"
(97 x 47 x 16.5 mm)
4.07" x 1.77" x 0.59"
(103 x 45 x 15 mm)
Form Factor Slide Clamshell Slab
Platform / OS (proprietary) (proprietary) (proprietary)
Network Bands

WCDMA: 1, 4, 8

GSM: 850, 900, 1800, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1700, 1900

Data Technology HSPA 10.1 ? 1xRTT
Features 
GPS / Location Yes Yes Yes
Accessibility
Adjustable Text Size - Yes -
Hearing Aid Compatible Yes
M3 (mostly compatible)
Yes
M4 (very compatible)
Yes
M3 (mostly compatible)
Multiple Languages Yes Yes Yes
TTY/TDD (Digital) - Yes Yes
Alerts
Ringer Profiles - Yes -
Connectivity
Bluetooth Yes - -
USB Yes
Micro-USB
Yes
Micro-USB
-
Wi-Fi Yes
802.11 b,g
- -
Contacts
Picture ID Yes Yes Yes
Ringer ID - Yes Yes
Customization
Custom Graphics Yes Yes Yes
Custom Ringtones Yes Yes Yes
Real-Music Ringers Yes Yes -
Data & Network
WAP / Web Browser Yes Yes Yes
Input
Predictive Text Entry - Yes Yes
Side Keys Yes - Yes
Stylus Yes - -
Text Keyboard, Hardware Yes - -
Touch Screen Yes - -
Memory
Memory Card Slot Yes - -
Messaging
Email Client Yes - -
Instant Messaging Yes - -
MMS - Yes -
Text Messaging Templates - Yes Yes
Music
FM Transmitter Yes - -
Headphone Jack (3.5mm) Yes - -
Music Player Yes - -
Stereo Speakers Yes - -
Photo & Video
DLNA Yes - -
TV Output Yes - -
Video Calling Yes * - -
Productivity
Alarm Yes Yes Yes
Calculator Yes Yes Yes
Calendar Yes Yes Yes
To-Do List - Yes -
Voice Memo - Yes -
Software
BREW - - Yes
Games Yes - Yes
Voice
Headset Jack (2.5 mm) - - Yes
Speaker Phone Yes Yes Yes
  * Some versions only
  Nokia N900 Samsung SGH-A157 Samsung SCH-R211
  X > < X > < X

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Phone Nokia N900 Samsung SGH-A157 Samsung SCH-R211

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