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Phone Samsung Sidekick 4G Samsung SGH-X640 Siemens CX75 Nokia 6340i Sony Xperia Z3 Compact
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Not yet released Released Released
Specifications 
Display Size 3.5" diag.
5 : 3
? ? ? 4.6" diag.
16 : 9
Display Resolution & Type 480 x 800 pixels
(~267 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
132 x 176 pixels
LCD (TFT/TFD)
96 x 65 pixels 720 x 1280 pixels
(~319 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz ? ? ? 60 Hz
Battery ? 800 mAh 750 mAh 900 mAh 2,600 mAh
Processor 1 GHz Samsung Hummingbird Cortex A8 ? ? ? 2.5 GHz Qualcomm Snapdragon 801 (MSM8974AC)
RAM ? ? ? ? 2 GB
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware 16 GB
Main Camera 3 megapixel Yes 1 megapixel - 20 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture WVGA / 480p - ? - 4K UHD
Front Camera Yes - - - 2 megapixel
Weight 5.7 oz
(162g)
3 oz
(85g)
3.46 oz
(98g)
4.4 oz
(125g)
4.55 oz
(129g)
Dimensions 5" x 2.42" x 0.6"
(127 x 61 x 15.2 mm)
3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
4.33" x 1.88" x 0.74"
(110 x 48 x 18.8 mm)
5.08" x 1.81" x 0.93"
(129 x 46 x 23.6 mm)
5" x 2.56" x 0.34"
(127 x 65 x 8.6 mm)
Form Factor Slide Clamshell Slab Slab Slab
Platform / OS Android (proprietary) (proprietary) (proprietary) Android
Network Bands

WCDMA: 1, 4

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

GSM: 900, 1800, 1900

GSM: 850, 1900

TDMA: 850, 1900

AMPS: 850

4G LTE: 1, 2, 3, 4, 5, 7, 8, 13, 17

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

Data Technology HSPA+ 21 GPRS GPRS - LTE (Cat 4)
Features 
GPS / Location n/a - - - n/a
Ruggedized - - - - Yes
Water-Resistant - - - - Yes
IPX8 (SCUBA)
Accessibility
Adjustable Text Size n/a - - - n/a
Hearing Aid Compatible Yes - - - Yes
Multiple Languages n/a Yes Yes Yes n/a
TTY/TDD (Digital) Yes - - Yes Yes
Alerts
Ringer Profiles - - Yes Yes -
Connectivity
Bluetooth Yes
Classic Audio
-
Yes
Classic Audio
-
Yes
Classic Audio
Infrared (IR) - - Yes Yes -
Mobile Hotspot n/a - - - n/a
NFC - - - - Yes
USB Yes
Micro-USB
- Yes - Yes
Micro-USB
Wi-Fi Yes
4 (802.11 b,g,n)
- - - Yes
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID n/a Yes Yes Yes n/a
Ringer ID n/a Yes Yes Yes n/a
Voice Dialing n/a - - Yes n/a
Customization
Custom Graphics n/a Yes Yes Yes n/a
Custom Ringtones n/a Yes Yes Yes n/a
Real-Music Ringers n/a - - - n/a
Data & Network
Data Tethering n/a - Yes Yes n/a
WAP / Web Browser n/a Yes Yes Yes n/a
Input
Predictive Text Entry n/a Yes Yes Yes n/a
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware Yes - - - -
Touch Screen Yes - - - Yes
Memory
Memory Card Slot Yes - Yes - Yes
Messaging
Email Client n/a - Yes - n/a
EMS / Picture Messaging n/a Yes Yes Yes n/a
Instant Messaging n/a - - - n/a
MMS n/a Yes Yes - n/a
Text Messaging Templates n/a Yes - Yes n/a
Music
FM Radio - - - - Yes
Headphone Jack (3.5mm) Yes - - - Yes
Music Player n/a - Yes - n/a
Stereo Speakers - - - - Yes
Photo & Video
DLNA Yes - - - Yes
Miracast - - - - Yes
TV Output - - - - Yes
Power
Fast Charging - - - - Yes
Productivity
Alarm n/a Yes Yes Yes n/a
Calculator n/a Yes Yes Yes n/a
Calendar n/a Yes Yes Yes n/a
To-Do List n/a Yes Yes Yes n/a
Voice Memo n/a Yes Yes Yes n/a
Software
Games n/a Yes Yes Yes n/a
Java (J2ME) n/a Yes Yes - n/a
Voice
Call Screening - - - - Yes
Headset Jack (2.5 mm) n/a Yes - - n/a
Push-To-Talk - - Yes - -
Speaker Phone Yes Yes Yes - Yes
  Samsung Sidekick 4G Samsung SGH-X640 Siemens CX75 Nokia 6340i Sony Xperia Z3 Compact
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung Sidekick 4G Samsung SGH-X640 Siemens CX75 Nokia 6340i Sony Xperia Z3 Compact

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