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Phone AT&T Vista Motorola EM330 / EM28 LG Volt Siemens CX75
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Not yet released
Specifications 
Display Size 5.5" diag.
18 : 9
1.8" diag.
4 : 3
4.7" diag.
16 : 9
?
Display Resolution & Type 720 x 1440 pixels
(~293 ppi)
LCD (TFT/TFD)
128 x 160 pixels
(~114 ppi)
LCD (TFT/TFD)
540 x 960 pixels
(~234 ppi)
LCD (TFT/TFD)
132 x 176 pixels
LCD (TFT/TFD)
Display Refresh 60 Hz ? 60 Hz ?
Battery 2,450 mAh 940 mAh 3,000 mAh 750 mAh
Processor 2 GHz MediaTek Helio A22 (MT6761V) ? 1.2 GHz Qualcomm Snapdragon 400 ?
RAM 3 GB ? 1 GB ?
Storage 32 GB ? raw hardware 4 GB ? raw hardware
Main Camera 8 megapixel 1 megapixel 8 megapixel 1 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture 1080p HD ? 1080p HD ?
Front Camera 5 megapixel - Yes -
Weight 5.51 oz
(156g)
3.17 oz
(90g)
4.76 oz
(135g)
3.46 oz
(98g)
Dimensions 5.88" x 2.82" x 0.35"
(149 x 72 x 8.9 mm)
3.71" x 1.95" x 0.68"
(94 x 50 x 17.4 mm)
5.17" x 2.6" x 0.42"
(131 x 66 x 10.7 mm)
4.33" x 1.88" x 0.74"
(110 x 48 x 18.8 mm)
Form Factor Slab Clamshell Slab Slab
Platform / OS Android (proprietary) Android (proprietary)
Network Bands

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

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 1800, 1900

*

4G LTE: 25, 26, 41

CDMA: 800, 850, 1900

GSM: 900, 1800, 1900

Data Technology LTE (Cat 4) EDGE LTE (Cat 3) GPRS
Features 
Flashlight Yes - Yes -
GPS / Location n/a - n/a -
Accessibility
Adjustable Text Size n/a - n/a -
Hearing Aid Compatible Yes Yes Yes -
Multiple Languages n/a Yes n/a Yes
TTY/TDD (Digital) - Yes Yes -
Alerts
Extra Display - Yes - -
Ringer Profiles - - - Yes
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) - - Yes Yes
Mobile Hotspot n/a - n/a -
NFC - - Yes -
USB Yes
USB Type C
Yes
Mini-USB
Yes Yes
Wi-Fi Yes - Yes -
Contacts
Picture ID n/a - n/a Yes
Ringer ID n/a - n/a Yes
Voice Dialing n/a - n/a -
Customization
Custom Graphics n/a Yes n/a Yes
Custom Ringtones n/a Yes n/a Yes
Real-Music Ringers n/a Yes n/a -
Data & Network
Data Tethering n/a - n/a Yes
WAP / Web Browser n/a Yes n/a Yes
Input
Predictive Text Entry n/a Yes n/a Yes
Side Keys Yes Yes Yes Yes
Touch Screen Yes - Yes -
Memory
Memory Card Slot Yes Yes Yes Yes
Messaging
Email Client n/a - n/a Yes
EMS / Picture Messaging n/a Yes n/a Yes
Instant Messaging n/a - n/a -
MMS n/a Yes n/a Yes
Text Messaging Templates n/a Yes n/a -
Music
FM Radio - Yes - -
Headphone Jack (3.5mm) Yes Yes Yes -
Music Player n/a Yes n/a Yes
Photo & Video
DLNA - - Yes -
Miracast - - Yes -
Productivity
Alarm n/a Yes n/a Yes
Calculator n/a Yes n/a Yes
Calendar n/a Yes n/a Yes
To-Do List n/a - n/a Yes
Voice Memo n/a - n/a Yes
Software
Games n/a Yes n/a Yes
Java (J2ME) n/a Yes n/a Yes
Voice
HD Voice Yes - - -
Push-To-Talk - - - Yes
Speaker Phone Yes Yes Yes Yes
  AT&T Vista Motorola EM330 / EM28 LG Volt Siemens CX75
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Phone AT&T Vista Motorola EM330 / EM28 LG Volt Siemens CX75

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