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Phone Samsung SGH-X640 Sharp TM100 Alcatel Pop Astro ZTE Overture 2 / Maven
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? ? 4.5" diag.
16 : 9
4.5" diag.
16 : 9
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
540 x 960 pixels
(~245 ppi)
LCD (TFT/TFD)
480 x 854 pixels
(~218 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz 60 Hz
Battery 800 mAh 780 mAh 2,000 mAh 2,100 mAh
Processor ? ? 1.5 GHz MediaTek MTK6732 1.2 GHz Qualcomm Snapdragon 410 (MSM8916)
RAM ? ? 1 GB 1 GB
Storage ? raw hardware ? raw hardware 4 GB 8 GB
Main Camera Yes Yes 5 megapixel 5 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - ? 1080p HD 720p HD
Front Camera - - Yes Yes
Weight 3 oz
(85g)
3.7 oz
(105g)
5.11 oz
(145g)
4.71 oz
(134g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
3.94" x 1.93" x 0.76"
(100 x 49 x 19.3 mm)
5.23" x 2.57" x 0.39"
(133 x 65 x 9.9 mm)
5.31" x 2.59" x 0.39"
(135 x 66 x 9.9 mm)
Form Factor Clamshell Slide Slab Slab
Platform / OS (proprietary) (proprietary) Android Android
Network Bands

GSM: 900, 1800, 1900

GSM: 900, 1800, 1900

4G LTE: 2, 4, 12

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

4G LTE: 2, 4, 5, 17

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

Data Technology GPRS GPRS LTE (Cat 4) LTE (Cat 4)
Features 
Flashlight - - Yes Yes
GPS / Location - - n/a n/a
Accessibility
Adjustable Text Size - - n/a n/a
Hearing Aid Compatible - - Yes
M4, T3 (mostly tele-coil compatible)
Yes *
M4, T4 (very tele-coil compatible)
Multiple Languages Yes Yes n/a n/a
TTY/TDD (Digital) - - Yes Yes
Alerts
Ringer Profiles - Yes - -
Connectivity
Bluetooth - - Yes Yes
Infrared (IR) - Yes - -
Mobile Hotspot - - n/a n/a
USB - Yes 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 Yes Yes n/a n/a
Ringer ID Yes Yes n/a n/a
Voice Dialing - - n/a n/a
Customization
Custom Graphics Yes Yes n/a n/a
Custom Ringtones Yes Yes n/a n/a
Real-Music Ringers - - n/a n/a
Data & Network
Data Tethering - Yes n/a n/a
WAP / Web Browser Yes Yes n/a n/a
Input
Predictive Text Entry Yes Yes n/a n/a
Side Keys Yes Yes Yes Yes
Touch Screen - - Yes Yes
Capacitive
Memory
Memory Card Slot - - Yes Yes
Messaging
Email Client - Yes n/a n/a
EMS / Picture Messaging Yes Yes n/a n/a
Instant Messaging - - n/a n/a
MMS Yes Yes n/a n/a
Text Messaging Templates Yes Yes n/a n/a
Music
FM Radio - - Yes -
Headphone Jack (3.5mm) - - Yes Yes
Music Player - - n/a n/a
Productivity
Alarm Yes Yes n/a n/a
Calculator Yes Yes n/a n/a
Calendar Yes Yes n/a n/a
To-Do List Yes - n/a n/a
Voice Memo Yes Yes n/a n/a
Software
Games Yes Yes n/a n/a
Java (J2ME) Yes Yes n/a n/a
Voice
HD Voice - - Yes -
Headset Jack (2.5 mm) Yes - n/a n/a
Speaker Phone Yes - Yes Yes
  * Some versions only
  Samsung SGH-X640 Sharp TM100 Alcatel Pop Astro ZTE Overture 2 / Maven
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Phone Samsung SGH-X640 Sharp TM100 Alcatel Pop Astro ZTE Overture 2 / Maven

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