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Phone Ericsson T66 T-Mobile REVVL 4 Samsung Transform Ultra HTC HD7 / HD7S
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 6.2" diag.
19 : 9
3.5" diag.
5 : 3
4.3" diag.
5 : 3
Display Resolution & Type ? 720 x 1520 pixels
(~270 ppi)
LCD (TFT/TFD)
320 x 480 pixels
(~165 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~217 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz 60 Hz ?
Battery ? 3,500 mAh 1,500 mAh 1,230 mAh
Processor ? 2 GHz MediaTek Helio A22 (MT6761) 1 GHz Qualcomm Snapdragon S2 MSM8655 1 GHz Qualcomm Snapdragon S1 QSD8250
RAM ? 2 GB ? ?
Storage ? raw hardware 32 GB ? raw hardware 16 GB
Main Camera - 13 megapixel 3 megapixel 5 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - 1080p HD VGA (640 x 480) 720p HD
Front Camera - 5 megapixel Yes -
Weight 2.08 oz
(59g)
5.59 oz
(158g)
4.9 oz
(139g)
5.71 oz
(162g)
Dimensions 3.62" x 1.61" x 0.69"
(92 x 41 x 17.5 mm)
6.26" x 2.99" x 0.32"
(159 x 76 x 8.1 mm)
4.5" x 2.4" x 0.55"
(114 x 61 x 14 mm)
4.8" x 2.7" x 0.44"
(122 x 69 x 11.2 mm)
Form Factor Slab Slab Slide Slab
Platform / OS (proprietary) Android Android Windows
Network Bands

GSM: 900, 1800, 1900

4G LTE: 2, 4, 5, 7, 12, 25, 26, 41, 66, 71

WCDMA: 2, 4, 5

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

CDMA: 800, 850, 1900

WCDMA: 1, 4

GSM: 850, 900, 1800, 1900

*

Data Technology - LTE (Cat 6) EVDO rA HSPA 7.2
Features 
Fingerprint Reader - Yes
stand-alone
- -
Flashlight - Yes - -
GPS / Location - n/a n/a n/a
Accessibility
Hearing Aid Compatible - Yes
M3, T3 (mostly tele-coil compatible)
Yes
M4 (very compatible)
-
Multiple Languages Yes n/a n/a n/a
TTY/TDD (Digital) - Yes Yes Yes
Alerts
Ringer Profiles Yes - - -
Connectivity
Bluetooth - Yes Yes Yes
Mobile Hotspot - n/a n/a n/a
USB - Yes
USB Type C
Yes Yes
Micro-USB
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 a,b,g,n)
Yes
4 (802.11 b,g,n)
Contacts
Picture ID - n/a n/a n/a
Ringer ID - n/a n/a n/a
Voice Dialing - 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 - n/a n/a n/a
Data & Network
WAP / Web Browser Yes n/a n/a n/a
Input
Predictive Text Entry Yes n/a n/a n/a
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware - - Yes -
Touch Screen - Yes
Capacitive
Yes
Capacitive
Yes
Capacitive
Memory
Memory Card Slot - 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 - n/a n/a n/a
Text Messaging Templates Yes n/a n/a n/a
Music
FM Radio - Yes - Yes
Headphone Jack (3.5mm) - Yes Yes Yes
Music Player - n/a n/a n/a
Stereo Speakers - - - Yes
Productivity
Alarm Yes n/a n/a n/a
Calculator Yes n/a n/a n/a
Calendar Yes n/a n/a n/a
To-Do List Yes n/a n/a n/a
Software
Games Yes n/a n/a n/a
Voice
HD Voice - Yes - -
Speaker Phone - Yes Yes Yes
  Ericsson T66 T-Mobile REVVL 4 Samsung Transform Ultra HTC HD7 / HD7S
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Ericsson T66 T-Mobile REVVL 4 Samsung Transform Ultra HTC HD7 / HD7S

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