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Phone Motorola T191 ZTE Savvy HTC Desire 555 Samsung SGH-X640 ZTE Aspect
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 4" diag.
5 : 3
5" diag.
16 : 9
? 2.4" diag.
4 : 3
Display Resolution & Type 98 x 64 pixels 480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~294 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
320 x 240 pixels
(~167 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz 60 Hz ? ?
Battery ? 1,650 mAh 2,200 mAh 800 mAh 1,000 mAh
Processor ? 1 GHz Qualcomm MSM8625 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) ? 230 MHz Qualcomm QSC6270
RAM ? 768 MB 2 GB ? 128 MB
Storage ? raw hardware 4 GB 16 GB ? raw hardware 256 MB
Main Camera - 5 megapixel 8 megapixel Yes 2 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - WVGA / 480p 720p HD - QVGA (320 x 240)
Front Camera - - 5 megapixel - -
Weight 3.49 oz
(99g)
4.43 oz
(126g)
4.93 oz
(140g)
3 oz
(85g)
3.7 oz
(105g)
Dimensions 4.17" x 1.57" x 0.59"
(106 x 40 x 15 mm)
4.96" x 2.55" x 0.42"
(126 x 65 x 10.7 mm)
5.78" x 2.79" x 0.33"
(147 x 71 x 8.4 mm)
3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
4.55" x 2.4" x 0.45"
(116 x 61 x 11.4 mm)
Form Factor Slab Slab Slab Clamshell Slab
Platform / OS (proprietary) Android Android (proprietary) (proprietary)
Network Bands

GSM: 1900

CDMA: 850, 1900

4G LTE: 2, 4, 5, 12

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

WCDMA: 2, 4

GSM: 850, 900, 1800, 1900

Data Technology - EVDO rA LTE (Cat 4) GPRS WCDMA (UMTS)
Features 
Flashlight - Yes 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 n/a n/a Yes Yes
TTY/TDD (Digital) - Yes Yes - Yes
Alerts
Ringer Profiles Yes - - - Yes
Connectivity
Bluetooth - Yes Yes - Yes
USB - Yes
Micro-USB
Yes
Micro-USB
- Yes
Micro-USB
Wi-Fi - Yes
4 (802.11 b,g,n)
Yes
4 (802.11 b,g,n)
- -
Contacts
Picture ID - n/a n/a Yes Yes
Ringer ID - n/a n/a Yes Yes
Voice Dialing Yes n/a n/a - -
Customization
Custom Graphics Yes n/a n/a Yes Yes
Custom Ringtones Yes n/a n/a Yes Yes
Real-Music Ringers - n/a n/a - Yes
Data & Network
Data Tethering Yes n/a n/a - -
WAP / Web Browser Yes n/a n/a Yes Yes
Input
Predictive Text Entry Yes n/a n/a Yes Yes
Side Keys - Yes Yes Yes Yes
Text Keyboard, Hardware - - - - Yes
Touch Screen - Yes Yes - -
Memory
Memory Card Slot - Yes Yes - Yes
Messaging
Email Client - n/a n/a - Yes
EMS / Picture Messaging - n/a n/a Yes -
Instant Messaging - n/a n/a - -
MMS - n/a n/a Yes Yes
Text Messaging Templates Yes n/a n/a Yes Yes
Music
FM Radio - - Yes - -
Headphone Jack (3.5mm) - Yes Yes - Yes
Music Player - n/a n/a - Yes
Photo & Video
DLNA - Yes Yes - -
Miracast - - Yes - -
Productivity
Alarm Yes n/a n/a Yes Yes
Calculator Yes n/a n/a Yes Yes
Calendar Yes n/a n/a Yes Yes
To-Do List - n/a n/a Yes -
Voice Memo Yes n/a n/a Yes Yes
Software
Games Yes n/a n/a Yes Yes
Java (J2ME) - n/a n/a Yes Yes
Voice
HD Voice - - Yes - -
Headset Jack (2.5 mm) Yes n/a n/a Yes -
Speaker Phone - Yes Yes Yes Yes
  * Some versions only
  Motorola T191 ZTE Savvy HTC Desire 555 Samsung SGH-X640 ZTE Aspect
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Phone Motorola T191 ZTE Savvy HTC Desire 555 Samsung SGH-X640 ZTE Aspect

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