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Phone Samsung SCH-A990 HTC G2 Samsung Wafer R510 Motorola C331t
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 3.7" diag.
5 : 3
1.9" diag.
4 : 3
?
Display Resolution & Type 240 x 320 pixels
LCD (TFT/TFD)
480 x 800 pixels
(~252 ppi)
LCD (TFT/TFD)
220 x 176 pixels
(~148 ppi)
LCD (TFT/TFD)
96 x 64 pixels
LCD (Grayscale)
Display Refresh ? 60 Hz ? ?
Battery 1,000 mAh 1,300 mAh 800 mAh ?
Processor ? 800 MHz Qualcomm S2 MSM7230 ? ?
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera 3 megapixel 5 megapixel 1 megapixel -
Wide Camera - - - -
Tele Camera - - - -
Video Capture ? 720p HD ? -
Front Camera - - - -
Weight 4.4 oz
(125g)
6.5 oz
(184g)
2.47 oz
(70g)
3.5 oz
(99g)
Dimensions 3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
4.68" x 2.37" x 0.55"
(119 x 60 x 14 mm)
4.45" x 1.97" x 0.33"
(113 x 50 x 8.4 mm)
4.2" x 1.9" x 0.9"
(107 x 48 x 22.9 mm)
Form Factor Clamshell Slab Slab Slab
Platform / OS (proprietary) Android (proprietary) (proprietary)
Network Bands

CDMA: 850, 1900

WCDMA: 1, 4

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

TDMA: 850, 1900

AMPS: 850

Data Technology EVDO r0 HSPA 14.4 EVDO r0 -
Features 
Flashlight Yes - - -
GPS / Location Yes n/a Yes -
Accessibility
Hearing Aid Compatible Yes
M3 (mostly compatible)
Yes
M3 (mostly compatible)
Yes
M3, T3 (mostly tele-coil compatible)
-
Multiple Languages Yes n/a Yes Yes
TTY/TDD (Digital) Yes - Yes Yes
Alerts
Extra Display Yes - - -
Connectivity
Bluetooth Yes Yes Yes -
Mobile Hotspot - n/a - -
USB Yes Yes - -
Wi-Fi - Yes
4 (802.11 b,g,n)
- -
Contacts
Picture ID Yes n/a Yes -
Ringer ID Yes n/a - Yes
Voice Dialing Yes n/a Yes Yes
Customization
Changeable Body Plates - - - Yes
Custom Graphics Yes n/a Yes Yes
Custom Ringtones Yes n/a Yes Yes
Real-Music Ringers Yes n/a - -
Data & Network
Data Tethering Yes n/a - Yes
WAP / Web Browser Yes n/a Yes Yes
Input
Predictive Text Entry Yes n/a Yes Yes
Side Keys Yes Yes Yes -
Text Keyboard, Hardware - Yes - -
Touch Screen - Yes
Capacitive
- -
Memory
Memory Card Slot Yes Yes Yes -
Messaging
Email Client - n/a - -
EMS / Picture Messaging Yes n/a - Yes
Instant Messaging - n/a - -
MMS Yes n/a Yes -
Text Messaging Templates Yes n/a - Yes
Music
Headphone Jack (3.5mm) - Yes - -
Music Player Yes n/a Yes -
Stereo Speakers Yes - Yes -
Photo & Video
TV Output Yes - - -
Productivity
Alarm Yes n/a Yes Yes
Calculator Yes n/a Yes Yes
Calendar Yes n/a Yes Yes
Voice Memo Yes n/a Yes Yes
Software
BREW Yes n/a Yes -
Games Yes n/a Yes Yes
Voice
Headset Jack (2.5 mm) - n/a - Yes
Speaker Phone Yes Yes Yes -
  Samsung SCH-A990 HTC G2 Samsung Wafer R510 Motorola C331t
  X > < X > < X > < X

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Phone Samsung SCH-A990 HTC G2 Samsung Wafer R510 Motorola C331t

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