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Phone Samsung Wafer R510 Samsung SGH-T239 Samsung Impression SGH-A877 Samsung Epix i907 Nokia Lumia 810
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 1.9" diag.
4 : 3
? 3.2" diag.
5 : 3
2.6" diag.
1 : 1
4.3" diag.
5 : 3
Display Resolution & Type 220 x 176 pixels
(~148 ppi)
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
240 x 400 pixels
(~146 ppi)
AMOLED
320 x 320 pixels
(~177 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~217 ppi)
AMOLED
Display Refresh ? ? ? ? ?
Battery 800 mAh ? 1,000 mAh 1,800 mAh 1,800 mAh
Processor ? ? ? 624 MHz PXA311 (ARM9) 1.5 GHz Qualcomm Snapdragon
RAM ? ? ? ? 1 GB
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware 8 GB
Main Camera 1 megapixel Yes 3 megapixel 2 megapixel 8 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture ? - QVGA (320 x 240) QVGA (320 x 240) 1080p HD
Front Camera - - - - 1 megapixel
Weight 2.47 oz
(70g)
3.34 oz
(95g)
5.2 oz
(147g)
4.4 oz
(125g)
5.11 oz
(145g)
Dimensions 4.45" x 1.97" x 0.33"
(113 x 50 x 8.4 mm)
3.78" x 1.87" x 0.68"
(96 x 47 x 17.3 mm)
4.48" x 2.28" x 0.64"
(114 x 58 x 16.3 mm)
4.6" x 2.4" x 0.5"
(117 x 61 x 12.7 mm)
5" x 2.69" x 0.44"
(127 x 68 x 11.2 mm)
Form Factor Slab Slide Slab Slab Slab
Platform / OS (proprietary) (proprietary) (proprietary) Windows Mobile Professional Windows
Network Bands

CDMA: 850, 1900

GSM: 850, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

WCDMA: 1, 2, 4, 5

GSM: 850, 900, 1800, 1900

Data Technology EVDO r0 GPRS HSDPA 3.6 HSDPA 3.6 HSPA+ 42
Features 
GPS / Location Yes - Yes n/a n/a
Accessibility
Adjustable Text Size - - - n/a n/a
Hearing Aid Compatible Yes Yes Yes Yes Yes
Multiple Languages Yes Yes Yes n/a n/a
TTY/TDD (Digital) Yes - - - Yes
Alerts
Ringer Profiles - - Yes - -
Connectivity
Bluetooth Yes Yes Yes Yes Yes
Mobile Hotspot - - - n/a n/a
NFC - - - - Yes
USB - - Yes Yes Yes
Micro-USB
Wi-Fi - - - Yes
802.11 b,g
Yes
4 (802.11 a,b,g,n)
Contacts
Picture ID Yes Yes Yes n/a n/a
Ringer ID - Yes Yes n/a n/a
Voice Dialing Yes - - n/a n/a
Customization
Custom Graphics Yes Yes Yes n/a n/a
Custom Ringtones Yes Yes Yes n/a n/a
Real-Music Ringers - Yes Yes n/a n/a
Data & Network
Data Tethering - - Yes n/a n/a
WAP / Web Browser Yes Yes Yes n/a n/a
Input
Predictive Text Entry Yes Yes Yes n/a n/a
Side Keys Yes Yes Yes Yes Yes
Stylus - - - Yes -
Text Keyboard, Hardware - - Yes Yes -
Touch Screen - - Yes Yes Yes
Memory
Memory Card Slot Yes - Yes Yes Yes
Messaging
Email Client - - Yes n/a n/a
EMS / Picture Messaging - Yes - n/a n/a
Instant Messaging - Yes Yes n/a n/a
MMS Yes Yes Yes n/a n/a
Text Messaging Templates - Yes Yes n/a n/a
Music
Headphone Jack (3.5mm) - - - - Yes
Music Player Yes - Yes n/a n/a
Stereo Speakers Yes - - - -
Power
Wireless Charging - - - - Yes
Productivity
Alarm Yes Yes Yes n/a n/a
Calculator Yes Yes Yes n/a n/a
Calendar Yes Yes Yes n/a n/a
To-Do List - Yes Yes n/a n/a
Voice Memo Yes Yes Yes n/a n/a
Software
BREW Yes - - n/a n/a
Games Yes Yes Yes n/a n/a
Java (J2ME) - Yes Yes n/a n/a
Voice
Speaker Phone Yes Yes Yes Yes Yes
  Samsung Wafer R510 Samsung SGH-T239 Samsung Impression SGH-A877 Samsung Epix i907 Nokia Lumia 810
  X > < X > < X > < X > < X

NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung Wafer R510 Samsung SGH-T239 Samsung Impression SGH-A877 Samsung Epix i907 Nokia Lumia 810

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