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Phone Ericsson R520 Nokia G100 AT&T Maestro 3 Samsung SCH-U740 Alias Siemens M75
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Not yet released
Specifications 
Display Size ? 6.5" diag.
20 : 9
6.5" diag.
20 : 9
? ?
Display Resolution & Type ? 720 x 1600 pixels
(~269 ppi)
LCD (TFT/TFD)
720 x 1600 pixels
(~270 ppi)
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
132 x 176 pixels
LCD (TFT/TFD)
Display Refresh ? 60 Hz 60 Hz ? ?
Battery ? 5,000 mAh 3,900 mAh ? 750 mAh
Processor ? 2 GHz Snapdragon 662 2 GHz MediaTek Helio A22 (MT6761) ? ?
RAM ? 3 GB 3 GB ? ?
Storage ? raw hardware 32 GB 32 GB ? raw hardware ? raw hardware
Main Camera - 13 megapixel 13 megapixel 1 megapixel 1 megapixel
Wide Camera - 8 megapixel 5 megapixel - -
Tele Camera - - - - -
Video Capture - 1080p HD 1080p HD ? ?
Front Camera - 8 megapixel 5 megapixel - -
Weight 4.23 oz
(120g)
6.87 oz
(195g)
6.24 oz
(177g)
3.56 oz
(101g)
3.88 oz
(110g)
Dimensions 5.12" x 1.97" x 0.63"
(130 x 50 x 16 mm)
6.56" x 3.02" x 0.35"
(167 x 77 x 8.8 mm)
6.58" x 3.03" x 0.33"
(167 x 77 x 8.4 mm)
3.84" x 2.04" x 0.63"
(98 x 52 x 16 mm)
4.35" x 2.03" x 0.82"
(110 x 52 x 20.8 mm)
Form Factor Slab Slab Slab Clamshell Slab
Platform / OS (proprietary) Android Android (proprietary) (proprietary)
Network Bands

GSM: 900, 1800, 1900

4G LTE: 2, 4, 5, 7, 12, 13, 41, 66, 71

WCDMA: 2, 4, 5

GSM: 850, 1900

4G LTE: 2, 4, 5, 12, 14, 30

CDMA: 850, 1900

GSM: 900, 1800, 1900

Data Technology GPRS LTE (Cat 13) LTE (Cat 4) EVDO r0 GPRS
Features 
Barometer - Yes Yes - -
Fingerprint Reader - Yes
stand-alone
Yes
stand-alone
- -
Flashlight - Yes Yes - -
GPS / Location - n/a n/a Yes -
Ruggedized - - - - Yes
Water-Resistant - Yes
IPX2 (drip)
- - -
Accessibility
Hearing Aid Compatible - Yes Yes Yes -
Multiple Languages Yes n/a n/a Yes Yes
TTY/TDD (Digital) - - - Yes -
Alerts
Extra Display - - - Yes -
Ringer Profiles Yes - - - Yes
Connectivity
Bluetooth Yes Yes Yes Yes Yes
Infrared (IR) Yes - - - Yes
USB - Yes
USB Type C
Yes
USB Type C
Yes Yes
Wi-Fi - Yes
5 (802.11 ac,b,g,n)
Yes
5 (802.11 a,ac,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 Yes -
Customization
Custom Graphics - n/a n/a Yes Yes
Custom Ringtones Yes n/a n/a Yes Yes
Data & Network
Data Tethering Yes n/a n/a Yes Yes
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 Yes
Text Keyboard, Hardware - - - Yes -
Touch Screen - Yes Yes - -
Memory
Memory Card Slot - Yes Yes Yes Yes
Messaging
Email Client - n/a n/a Yes Yes
EMS / Picture Messaging - n/a n/a - Yes
Instant Messaging - n/a n/a Yes -
MMS - n/a n/a Yes Yes
Text Messaging Templates Yes n/a n/a Yes -
Music
FM Radio - Yes - - -
Headphone Jack (3.5mm) - Yes Yes - -
Music Player - n/a n/a Yes Yes
Power
Fast Charging - 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
BREW - n/a n/a Yes -
Games Yes n/a n/a Yes Yes
Java (J2ME) - n/a n/a - Yes
Voice
HD Voice - Yes Yes - -
Push-To-Talk - - - - Yes
Speaker Phone Yes Yes Yes Yes Yes
  Ericsson R520 Nokia G100 AT&T Maestro 3 Samsung SCH-U740 Alias Siemens M75
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Phone Ericsson R520 Nokia G100 AT&T Maestro 3 Samsung SCH-U740 Alias Siemens M75

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