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Phone Samsung SCH-A990 Samsung SPH-A250 Nokia E66 Cricket Debut S2 / AT&T Calypso 4 Samsung Transform
Current U.S. Carriers (none) (none) (none) AT&T (none)
Global Availability Released Not yet released Released Released Released
Specifications 
Display Size ? ? 2.4" diag.
4 : 3
6.1" diag.
19.5 : 9
3.5" diag.
5 : 3
Display Resolution & Type 240 x 320 pixels
LCD (TFT/TFD)
? 240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
720 x 1560 pixels
(~282 ppi)
LCD (TFT/TFD)
320 x 480 pixels
(~165 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? 60 Hz 60 Hz
Battery 1,000 mAh ? 1,000 mAh 3,000 mAh 1,500 mAh
Processor ? ? ? 2 GHz MediaTek Helio A22 (MT6761WB) 800 MHz Samsung S3C6410, Qualcomm QSC6085
RAM ? ? ? 3 GB ?
Storage ? raw hardware ? raw hardware ? raw hardware 64 GB ? raw hardware
Main Camera 3 megapixel - 3 megapixel 8 megapixel 3 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture ? - QVGA (320 x 240) ? QVGA (320 x 240)
Front Camera - - - 5 megapixel Yes
Weight 4.4 oz
(125g)
2.82 oz
(80g)
4.27 oz
(121g)
5.64 oz
(160g)
5.37 oz
(152g)
Dimensions 3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
2.76" x 1.91" x 0.83"
(70 x 49 x 21.1 mm)
4.21" x 1.93" x 0.51"
(107 x 49 x 13 mm)
6.11" x 2.87" x 0.34"
(155 x 73 x 8.6 mm)
4.61" x 2.42" x 0.61"
(117 x 61 x 15.5 mm)
Form Factor Clamshell Clamshell Slide Slab Slide
Platform / OS (proprietary) (proprietary) S60 (Symbian) Android Android
Network Bands

CDMA: 850, 1900

CDMA: 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

*

4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30, 66

WCDMA: 1, 2, 4, 5, 8

CDMA: 850, 1900

Data Technology EVDO r0 - HSDPA 3.6 LTE (Cat 4) EVDO rA
Features 
Flashlight Yes - - Yes -
GPS / Location Yes - n/a n/a n/a
Accessibility
Hearing Aid Compatible Yes
M3 (mostly compatible)
- - Yes
M4, T4 (very tele-coil compatible)
Yes
M4, T3 (mostly tele-coil compatible)
Multiple Languages Yes - n/a n/a n/a
TTY/TDD (Digital) Yes - - - Yes
Alerts
Extra Display Yes - - - -
Ringer Profiles - - Yes - -
Connectivity
Bluetooth Yes - Yes Yes Yes
Infrared (IR) - - Yes - -
USB Yes - Yes
Micro-USB
Yes
USB Type C
Yes
Micro-USB
Wi-Fi - - Yes
802.11 b,g
Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 b,g,n)
Contacts
Picture ID Yes - n/a n/a n/a
Ringer ID Yes - n/a n/a n/a
Voice Dialing Yes Yes 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 Yes Yes n/a n/a n/a
WAP / Web Browser Yes Yes n/a n/a n/a
Input
Predictive Text Entry Yes Yes n/a n/a n/a
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - - - Yes
Touch Screen - - - Yes
Capacitive
Yes
Capacitive
Memory
Memory Card Slot Yes - Yes Yes Yes
Messaging
Email Client - - 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
FM Radio - - Yes - -
Headphone Jack (3.5mm) - - - Yes Yes
Music Player Yes - n/a n/a n/a
Stereo Speakers Yes - - - -
Photo & Video
TV Output Yes - - - -
Video Calling - - n/a n/a n/a
Power
Fast Charging - - - Yes -
Productivity
Alarm Yes Yes n/a n/a n/a
Calculator Yes Yes n/a n/a n/a
Calendar Yes 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
BREW Yes - n/a n/a n/a
Games Yes - n/a n/a n/a
Java (J2ME) - - n/a n/a n/a
Voice
HD Voice - - - Yes -
Headset Jack (2.5 mm) - Yes n/a n/a n/a
Speaker Phone Yes - Yes Yes Yes
  * Some versions only
  Samsung SCH-A990 Samsung SPH-A250 Nokia E66 Cricket Debut S2 / AT&T Calypso 4 Samsung Transform
  X > < X > < X > < X > < X

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

 
Phone Samsung SCH-A990 Samsung SPH-A250 Nokia E66 Cricket Debut S2 / AT&T Calypso 4 Samsung Transform

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