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Phone Apple iPhone 4 (CDMA) Samsung SGH-A197 Motorola Rival A455 Samsung SCH-A990
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 3.5" diag.
5 : 3
2" diag.
4 : 3
2.2" diag.
4 : 3
?
Display Resolution & Type 640 x 960 pixels
(~330 ppi)
LCD (TFT/TFD)
128 x 160 pixels
(~102 ppi)
LCD (TFT/TFD)
176 x 220 pixels
(~131 ppi)
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
Display Refresh 60 Hz ? ? ?
Battery ? 800 mAh 940 mAh 1,000 mAh
Processor ? ? ? ?
RAM ? ? ? ?
Storage 8 GB * ? raw hardware ? raw hardware ? raw hardware
Main Camera 5 megapixel Yes 2 megapixel 3 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture 720p HD - QVGA (320 x 240) ?
Front Camera Yes - - -
Weight 4.8 oz
(136g)
2.7 oz
(77g)
4.48 oz
(127g)
4.4 oz
(125g)
Dimensions 4.5" x 2.31" x 0.37"
(114 x 59 x 9.4 mm)
3.78" x 1.85" x 0.75"
(96 x 47 x 19.1 mm)
3.82" x 1.96" x 0.73"
(97 x 50 x 18.5 mm)
3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
Form Factor Slab Clamshell Slide Clamshell
Platform / OS iOS (proprietary) (proprietary) (proprietary)
Network Bands

CDMA: 850, 1900

GSM: 850, 1900

CDMA: 850, 1900

CDMA: 850, 1900

Data Technology EVDO rA GPRS EVDO r0 EVDO r0
Features 
Flashlight - - - Yes
GPS / Location n/a - Yes Yes
Accessibility
Adjustable Text Size n/a - - -
Hearing Aid Compatible Yes
M4, T4 (very tele-coil compatible)
Yes
M3, T3 (mostly tele-coil compatible)
Yes
M3, T3 (mostly tele-coil compatible)
Yes
M3 (mostly compatible)
Multiple Languages n/a Yes Yes Yes
TTY/TDD (Digital) - Yes Yes Yes
Alerts
Extra Display - Yes - Yes
Ringer Profiles - Yes - -
Connectivity
Bluetooth Yes Yes Yes Yes
Mobile Hotspot n/a - - -
USB Yes Yes
Micro-USB
Yes
Micro-USB
Yes
Wi-Fi Yes
4 (802.11 b,g,n)
- - -
Contacts
Picture ID n/a Yes Yes Yes
Ringer ID n/a Yes Yes Yes
Voice Dialing n/a - Yes Yes
Customization
Custom Graphics n/a Yes Yes Yes
Custom Ringtones n/a Yes Yes Yes
Real-Music Ringers n/a Yes Yes Yes
Data & Network
Data Tethering n/a - Yes Yes
WAP / Web Browser n/a Yes Yes Yes
Input
Predictive Text Entry n/a Yes - Yes
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware - - Yes -
Touch Screen Yes
Capacitive
- Yes -
Memory
Memory Card Slot - - Yes Yes
Messaging
Email Client n/a Yes Yes -
EMS / Picture Messaging n/a - Yes Yes
Instant Messaging n/a Yes Yes -
MMS n/a Yes Yes Yes
Text Messaging Templates n/a Yes Yes Yes
Music
Headphone Jack (3.5mm) Yes - Yes -
Music Player n/a - Yes Yes
Stereo Speakers - - - Yes
Photo & Video
TV Output Yes - - Yes
Video Calling n/a - - -
Productivity
Alarm n/a Yes Yes Yes
Calculator n/a Yes Yes Yes
Calendar n/a Yes Yes Yes
Voice Memo n/a Yes Yes Yes
Software
BREW n/a - Yes Yes
Games n/a Yes Yes Yes
Java (J2ME) n/a Yes - -
Voice
Speaker Phone Yes Yes Yes Yes
  Apple iPhone 4 (CDMA) Samsung SGH-A197 Motorola Rival A455 Samsung SCH-A990
  X > < X > < X > < X

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

 
Phone Apple iPhone 4 (CDMA) Samsung SGH-A197 Motorola Rival A455 Samsung SCH-A990

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