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Phone Ericsson T66 Samsung SGH-E900 / E906 Motorola Electrify 2 AT&T Vista Motorola Rival A455
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? ? 4.3" diag.
16 : 9
5.5" diag.
18 : 9
2.2" diag.
4 : 3
Display Resolution & Type ? 240 x 320 pixels
LCD (TFT/TFD)
540 x 960 pixels
(~256 ppi)
LCD (TFT/TFD)
720 x 1440 pixels
(~293 ppi)
LCD (TFT/TFD)
176 x 220 pixels
(~131 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz 60 Hz ?
Battery ? 800 mAh 1,780 mAh 2,450 mAh 940 mAh
Processor ? ? ? 2 GHz MediaTek Helio A22 (MT6761V) ?
RAM ? ? 1 GB 3 GB ?
Storage ? raw hardware ? raw hardware 8 GB 32 GB ? raw hardware
Main Camera - 2 megapixel 8 megapixel 8 megapixel 2 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - ? 1080p HD 1080p HD QVGA (320 x 240)
Front Camera - - Yes 5 megapixel -
Weight 2.08 oz
(59g)
3.28 oz
(93g)
4.59 oz
(130g)
5.51 oz
(156g)
4.48 oz
(127g)
Dimensions 3.62" x 1.61" x 0.69"
(92 x 41 x 17.5 mm)
3.66" x 1.77" x 0.65"
(93 x 45 x 16.5 mm)
5.06" x 2.59" x 0.33"
(128 x 66 x 8.4 mm)
5.88" x 2.82" x 0.35"
(149 x 72 x 8.9 mm)
3.82" x 1.96" x 0.73"
(97 x 50 x 18.5 mm)
Form Factor Slab Slide Slab Slab Slide
Platform / OS (proprietary) (proprietary) Android Android (proprietary)
Network Bands

GSM: 900, 1800, 1900

GSM: 900, 1800, 1900

*

WCDMA: 1, 8

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

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

WCDMA: 1, 2, 4, 5, 8

CDMA: 850, 1900

Data Technology - EDGE EVDO rA LTE (Cat 4) EVDO r0
Features 
Flashlight - - - Yes -
GPS / Location - - n/a n/a Yes
Accessibility
Adjustable Text Size - - n/a n/a -
Hearing Aid Compatible - - Yes Yes Yes
Multiple Languages Yes Yes n/a n/a Yes
TTY/TDD (Digital) - - Yes - Yes
Alerts
Ringer Profiles Yes - - - -
Connectivity
Bluetooth - Yes Yes Yes Yes
Mobile Hotspot - - n/a n/a -
USB - Yes Yes
Micro-USB
Yes
USB Type C
Yes
Micro-USB
Wi-Fi - - Yes
4 (802.11 b,g,n)
Yes -
Contacts
Picture ID - Yes n/a n/a Yes
Ringer ID - Yes n/a n/a Yes
Voice Dialing - - n/a n/a Yes
Customization
Custom Graphics Yes Yes n/a n/a Yes
Custom Ringtones Yes Yes n/a n/a Yes
Real-Music Ringers - Yes n/a n/a Yes
Data & Network
Data Tethering - - n/a n/a Yes
WAP / Web Browser Yes Yes n/a n/a Yes
Input
Predictive Text Entry Yes Yes n/a n/a -
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - - - Yes
Touch Screen - - Yes Yes Yes
Memory
Memory Card Slot - Yes Yes Yes Yes
Messaging
Email Client - Yes n/a n/a Yes
EMS / Picture Messaging Yes - n/a n/a Yes
Instant Messaging - - n/a n/a Yes
MMS - Yes n/a n/a Yes
Text Messaging Templates Yes Yes n/a n/a Yes
Music
FM Radio - - Yes - -
Headphone Jack (3.5mm) - - Yes Yes Yes
Music Player - Yes n/a n/a Yes
Photo & Video
DLNA - - Yes - -
TV Output - Yes - - -
Productivity
Alarm Yes Yes n/a n/a Yes
Calculator Yes Yes n/a n/a Yes
Calendar Yes Yes n/a n/a Yes
To-Do List Yes - n/a n/a -
Voice Memo - Yes n/a n/a Yes
Software
BREW - - n/a n/a Yes
Games Yes Yes n/a n/a Yes
Java (J2ME) - Yes n/a n/a -
Voice
HD Voice - - - Yes -
Speaker Phone - Yes Yes Yes Yes
  Ericsson T66 Samsung SGH-E900 / E906 Motorola Electrify 2 AT&T Vista Motorola Rival A455
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Ericsson T66 Samsung SGH-E900 / E906 Motorola Electrify 2 AT&T Vista Motorola Rival A455

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