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Phone LG CU400 / CU405 Ericsson R520 Samsung SPH-I300 Samsung Rugby Smart Amazon Fire
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? ? ? 3.7" diag.
5 : 3
4.7" diag.
16 : 9
Display Resolution & Type 176 x 220 pixels
LCD (TFT/TFD)
? 160 x 240 pixels
LCD (Color)
480 x 800 pixels
(~252 ppi)
AMOLED
720 x 1280 pixels
(~312 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? 60 Hz ?
Battery 1,100 mAh ? ? 1,650 mAh 2,400 mAh
Processor ? ? ? 1.4 GHz Qualcomm Snapdragon S2 2.2 GHz Qualcomm Snapdragon 800
RAM ? ? ? 512 MB 2 GB
Storage ? raw hardware ? raw hardware ? raw hardware 4 GB 32 GB *
Main Camera Yes - - 5 megapixel 13 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture QVGA (320 x 240) - - 720p HD 1080p HD
Front Camera - - - 1 megapixel 2 megapixel
Weight 3.27 oz
(93g)
4.23 oz
(120g)
6 oz
(170g)
4.2 oz
(119g)
5.64 oz
(160g)
Dimensions 3.36" x 1.89" x 0.9"
(85 x 48 x 22.9 mm)
5.12" x 1.97" x 0.63"
(130 x 50 x 16 mm)
4.9" x 2.28" x 0.82"
(124 x 58 x 20.8 mm)
4.93" x 2.6" x 0.35"
(125 x 66 x 8.9 mm)
5.5" x 2.6" x 0.35"
(140 x 66 x 8.9 mm)
Form Factor Clamshell Slab Slab Slab Slab
Platform / OS (proprietary) (proprietary) Palm OS Android (proprietary)
Network Bands

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

CDMA: 1900

AMPS: 850

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

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

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

Data Technology WCDMA (UMTS) GPRS - HSPA+ 21 LTE (Cat 4)
Features 
Flashlight - - - - Yes
GPS / Location - - n/a n/a Yes
Ruggedized - - - Yes -
Water-Resistant - - - Yes -
Accessibility
Hearing Aid Compatible Yes - - Yes Yes
Multiple Languages Yes Yes n/a n/a Yes
TTY/TDD (Digital) Yes - - Yes Yes
Alerts
Extra Display Yes - Yes - -
Ringer Profiles - Yes - - -
Connectivity
Bluetooth Yes
Classic Audio
Yes
HSP, Sync, OPP, DUN
-
Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) - Yes Yes - -
Mobile Hotspot - - n/a n/a Yes
NFC - - - - Yes
USB Yes - - Yes
Micro-USB
Yes
Micro-USB
Wi-Fi - - - Yes
4 (802.11 b,g,n)
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 Yes
Voice Dialing - Yes n/a n/a Yes
Customization
Custom Graphics Yes - n/a n/a -
Custom Ringtones Yes Yes n/a n/a Yes
Real-Music Ringers Yes - n/a n/a -
Data & Network
Data Tethering Yes Yes n/a n/a Yes
WAP / Web Browser Yes Yes n/a n/a Yes
Input
Predictive Text Entry Yes Yes n/a n/a Yes
Side Keys Yes Yes Yes Yes Yes
Touch Screen - - Yes Yes Yes
Memory
Memory Card Slot - - - Yes -
Messaging
Email Client - - n/a n/a Yes
Instant Messaging Yes - n/a n/a -
MMS Yes - n/a n/a Yes
Text Messaging Templates Yes Yes n/a n/a Yes
Music
Headphone Jack (3.5mm) - - - Yes Yes
Music Player - - n/a n/a Yes
Stereo Speakers - - - - Yes
Photo & Video
DLNA - - - Yes -
Miracast - - - - Yes
TV Output - - - - Yes
Productivity
Alarm Yes Yes n/a n/a Yes
Calculator Yes Yes n/a n/a Yes
Calendar Yes Yes n/a n/a Yes
To-Do List Yes - n/a n/a -
Voice Memo Yes Yes n/a n/a Yes
Software
Games Yes Yes n/a n/a Yes
Java (J2ME) Yes - n/a n/a -
Voice
HD Voice - - - - Yes
Headset Jack (2.5 mm) Yes - n/a n/a -
Push-To-Talk Yes - - - -
Speaker Phone Yes Yes Yes Yes Yes
  LG CU400 / CU405 Ericsson R520 Samsung SPH-I300 Samsung Rugby Smart Amazon Fire
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone LG CU400 / CU405 Ericsson R520 Samsung SPH-I300 Samsung Rugby Smart Amazon Fire

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