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Phone Apple iPhone 4 (CDMA) Samsung SGH-E640 LG G Flex2 (GSM) Samsung SGH-D307
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 3.5" diag.
5 : 3
? 5.5" diag.
16 : 9
?
Display Resolution & Type 640 x 960 pixels
(~330 ppi)
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
1080 x 1920 pixels
(~401 ppi)
AMOLED
176 x 220 pixels
LCD (TFT/TFD)
Display Refresh 60 Hz ? 60 Hz ?
Battery ? 800 mAh 3,000 mAh ?
Processor ? ? Qualcomm Snapdragon 810 ?
RAM ? ? 3 GB * ?
Storage 8 GB * ? raw hardware 32 GB * ? raw hardware
Main Camera 5 megapixel 1 megapixel 13 megapixel -
Wide Camera - - - -
Tele Camera - - - -
Video Capture 720p HD QCIF (176 x 144) 4K UHD -
Front Camera Yes - 2 megapixel -
Weight 4.8 oz
(136g)
3.17 oz
(90g)
5.36 oz
(152g)
4.3 oz
(122g)
Dimensions 4.5" x 2.31" x 0.37"
(114 x 59 x 9.4 mm)
3.37" x 1.78" x 0.93"
(86 x 45 x 23.6 mm)
5.87" x 2.96" x 0.35"
(149 x 75 x 8.9 mm)
3.7" x 1.9" x 0.85"
(94 x 48 x 21.6 mm)
Form Factor Slab Clamshell Slab Clamshell
Platform / OS iOS (proprietary) Android (proprietary)
Network Bands

CDMA: 850, 1900

GSM: 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 12, 17, 29

WCDMA: 1, 2, 5, 8

GSM: 850, 900, 1800, 1900

GSM: 850, 1800, 1900

Data Technology EVDO rA GPRS LTE (Cat 4) EDGE
Features 
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 - Yes
Connectivity
Bluetooth Yes Yes Yes Yes
Infrared (IR) - - Yes -
Mobile Hotspot n/a - n/a -
NFC - - Yes -
USB Yes Yes Yes
Micro-USB
Yes
Wi-Fi Yes
4 (802.11 b,g,n)
- Yes
5 (802.11 a,ac,b,g,n)
-
Contacts
Picture ID n/a Yes n/a Yes
Ringer ID n/a Yes n/a Yes
Voice Dialing n/a - n/a Yes
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 Yes
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
Text Keyboard, Hardware - - - Yes
Touch Screen Yes - Yes -
Memory
Memory Card Slot - - Yes -
Messaging
Email Client n/a Yes 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 Yes
Music
Headphone Jack (3.5mm) Yes - Yes -
Music Player n/a Yes n/a -
Photo & Video
DLNA - - Yes -
Miracast - - Yes -
TV Output Yes - Yes -
Video Calling n/a - n/a -
Power
Fast Charging - - 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 Yes n/a Yes
Voice Memo n/a Yes n/a Yes
Software
Games n/a Yes n/a Yes
Java (J2ME) n/a Yes n/a Yes
Voice
HD Voice - - Yes -
Speaker Phone Yes Yes Yes Yes
  Apple iPhone 4 (CDMA) Samsung SGH-E640 LG G Flex2 (GSM) Samsung SGH-D307
  X > < X > < X > < X

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Phone Apple iPhone 4 (CDMA) Samsung SGH-E640 LG G Flex2 (GSM) Samsung SGH-D307

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