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Phone Ericsson R278d Cricket Debut Smart Samsung Sidekick 4G Samsung Trance SCH-U490
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 5.5" diag.
18 : 9
3.5" diag.
5 : 3
2.1" diag.
4 : 3
Display Resolution & Type 101 x 40 pixels 720 x 1440 pixels
(~293 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~267 ppi)
LCD (TFT/TFD)
176 x 220 pixels
(~134 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz 60 Hz ?
Battery ? 2,500 mAh ? ?
Processor ? 2 GHz MediaTek Helio A22 (MT6761V) 1 GHz Samsung Hummingbird Cortex A8 ?
RAM ? 3 GB ? ?
Storage ? raw hardware 32 GB ? raw hardware ? raw hardware
Main Camera - 5 megapixel 3 megapixel 1 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - 1080p HD WVGA / 480p -
Front Camera - 5 megapixel Yes -
Weight 9.28 oz
(263g)
5.64 oz
(160g)
5.7 oz
(162g)
3.53 oz
(100g)
Dimensions 5.1" x 2" x 1"
(130 x 51 x 25.4 mm)
5.87" x 2.83" x 0.38"
(149 x 72 x 9.7 mm)
5" x 2.42" x 0.6"
(127 x 61 x 15.2 mm)
4" x 1.97" x 0.55"
(102 x 50 x 14 mm)
Form Factor Slab Slab Slide Slide
Platform / OS (proprietary) Android Android (proprietary)
Network Bands

TDMA: 850, 1900

AMPS: 850

4G LTE: 2, 4, 5, 12, 14, 30

WCDMA: 2, 4, 5

WCDMA: 1, 4

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

Data Technology - LTE (Cat 4) HSPA+ 21 1xRTT
Features 
Flashlight - Yes - -
GPS / Location - n/a n/a Yes
Accessibility
Adjustable Text Size - n/a n/a Yes
Hearing Aid Compatible - Yes
M3, T3 (mostly tele-coil compatible)
Yes
M3, T3 (mostly tele-coil compatible)
Yes
M4, T3 (mostly tele-coil compatible)
Multiple Languages Yes n/a n/a Yes
TTY/TDD (Digital) - - Yes Yes
Alerts
Ringer Profiles Yes - - -
Connectivity
Bluetooth - Yes Yes Yes
Mobile Hotspot - n/a n/a -
USB - Yes
USB Type C
Yes
Micro-USB
Yes
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 b,g,n)
-
Contacts
Picture ID - n/a n/a Yes
Ringer ID - n/a n/a Yes
Voice Dialing - n/a n/a Yes
Customization
Custom Graphics - n/a n/a Yes
Custom Ringtones Yes n/a n/a Yes
Real-Music Ringers - n/a n/a Yes
Data & Network
Data Tethering Yes n/a n/a Yes
WAP / Web Browser Yes n/a n/a Yes
Input
Predictive Text Entry Yes n/a n/a Yes
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware - - Yes -
Touch Screen - Yes
Capacitive
Yes -
Memory
Memory Card Slot - Yes Yes Yes
Messaging
Email Client - n/a n/a -
Instant Messaging - n/a n/a -
MMS - n/a n/a Yes
Text Messaging Templates - n/a n/a Yes
Music
Headphone Jack (3.5mm) - Yes Yes Yes
Music Player - n/a n/a Yes
Photo & Video
DLNA - - Yes -
Productivity
Alarm Yes n/a n/a Yes
Calculator - n/a n/a Yes
Calendar - n/a n/a Yes
Voice Memo - n/a n/a Yes
Software
BREW - n/a n/a Yes
Games - n/a n/a Yes
Voice
HD Voice - Yes - -
Speaker Phone - Yes Yes Yes
  Ericsson R278d Cricket Debut Smart Samsung Sidekick 4G Samsung Trance SCH-U490
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Phone Ericsson R278d Cricket Debut Smart Samsung Sidekick 4G Samsung Trance SCH-U490

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