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Phone Samsung SGH-X640 Nokia 3650 Kyocera DuraForce Motorola EM330 / EM28 LG AX-390 / UX-390
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? ? 4.5" diag.
16 : 9
1.8" diag.
4 : 3
?
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
176 x 208 pixels
LCD (TFT/TFD)
720 x 1280 pixels
(~326 ppi)
LCD (TFT/TFD)
128 x 160 pixels
(~114 ppi)
LCD (TFT/TFD)
128 x 128 pixels
LCD (STN)
Display Refresh ? ? 60 Hz ? ?
Battery 800 mAh 850 mAh 3,100 mAh 940 mAh 1,000 mAh
Processor ? ? 1.4 GHz Qualcomm Snapdragon 400 (MSM8928) ? ?
RAM ? ? 2 GB ? ?
Storage ? raw hardware ? raw hardware 16 GB ? raw hardware ? raw hardware
Main Camera Yes Yes 8 megapixel 1 megapixel -
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - ? 1080p HD ? -
Front Camera - - 2 megapixel - -
Weight 3 oz
(85g)
4.59 oz
(130g)
7.06 oz
(200g)
3.17 oz
(90g)
3.74 oz
(106g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
5.1" x 2.24" x 1"
(130 x 57 x 25.4 mm)
5.39" x 2.78" x 0.55"
(137 x 71 x 14 mm)
3.71" x 1.95" x 0.68"
(94 x 50 x 17.4 mm)
3.82" x 1.98" x 0.94"
(97 x 50 x 23.9 mm)
Form Factor Clamshell Slab Slab Clamshell Clamshell
Platform / OS (proprietary) S60 (Symbian) Android (proprietary) (proprietary)
Network Bands

GSM: 900, 1800, 1900

GSM: 900, 1800, 1900

4G LTE: 1, 2, 4, 5, 7, 17

WCDMA: 1, 2, 5, 8

GSM: 850, 900, 1800, 1900

*

GSM: 850, 1800, 1900

*

CDMA: 850, 1900

AMPS: 850

Data Technology GPRS GPRS LTE (Cat 3) EDGE 1xRTT
Features 
Flashlight - - Yes - -
GPS / Location - n/a n/a - Yes
Ruggedized - - Yes - -
Water-Resistant - - Yes
IPX8 (SCUBA)
- -
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 Yes
Alerts
Extra Display - - - Yes Yes
Ringer Profiles - Yes - - -
Connectivity
Bluetooth -
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
-
Infrared (IR) - Yes - - -
Mobile Hotspot - n/a n/a - -
NFC - - Yes - -
USB - - Yes
Micro-USB
Yes
Mini-USB
-
Wi-Fi - - Yes
5 (802.11 a,ac,b,g,n)
- -
Contacts
Picture ID Yes n/a n/a - Yes
Ringer ID Yes n/a n/a - -
Voice Dialing - n/a n/a - Yes
Customization
Changeable Body Plates - Yes - - -
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 Yes
Data & Network
Data Tethering - 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
Touch Screen - - Yes - -
Memory
Memory Card Slot - Yes Yes Yes -
Messaging
Email Client - n/a n/a - -
EMS / Picture Messaging Yes n/a n/a Yes -
Instant Messaging - n/a n/a - -
MMS Yes 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 -
Stereo Speakers - - Yes - -
Photo & Video
DLNA - - Yes - -
Miracast - - Yes - -
Power
Wireless 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 Yes n/a n/a - -
Voice Memo Yes n/a n/a - Yes
Software
BREW - n/a n/a - Yes
Games Yes n/a n/a Yes Yes
Java (J2ME) Yes n/a n/a Yes -
Voice
Headset Jack (2.5 mm) Yes n/a n/a - Yes
Push-To-Talk - - Yes * - Yes
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Samsung SGH-X640 Nokia 3650 Kyocera DuraForce Motorola EM330 / EM28 LG AX-390 / UX-390
  X > < X > < X > < X > < X

NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-X640 Nokia 3650 Kyocera DuraForce Motorola EM330 / EM28 LG AX-390 / UX-390

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