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Phone Apple iPhone 4 (CDMA) Samsung Glyde U940 LG K30 2018 (GSM) Casio G'zOne Boulder Samsung Galaxy S6 (GSM)
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 3.5" diag.
5 : 3
2.8" diag.
16.5 : 9
5.3" diag.
16 : 9
2" diag.
4 : 3
5.1" diag.
16 : 9
Display Resolution & Type 640 x 960 pixels
(~330 ppi)
LCD (TFT/TFD)
240 x 440 pixels
(~182 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~277 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~200 ppi)
LCD (TFT/TFD)
1440 x 2560 pixels
(~576 ppi)
AMOLED
Display Refresh 60 Hz ? 60 Hz ? 60 Hz
Battery ? 1,000 mAh 2,880 mAh 810 mAh 2,550 mAh
Processor ? ? 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) ? 2.1 GHz Samsung Exynos 7420
RAM ? ? 2 GB ? 3 GB
Storage 8 GB * ? raw hardware 32 GB * ? raw hardware 32 GB *
Main Camera 5 megapixel 2 megapixel 13 megapixel 1 megapixel 16 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 720p HD QVGA (320 x 240) 1080p HD ? 4K UHD
Front Camera Yes - 5 megapixel - 5 megapixel
Weight 4.8 oz
(136g)
4.2 oz
(119g)
5.93 oz
(168g)
4.9 oz
(139g)
4.87 oz
(138g)
Dimensions 4.5" x 2.31" x 0.37"
(114 x 59 x 9.4 mm)
4.09" x 1.98" x 0.71"
(104 x 50 x 18 mm)
5.85" x 2.95" x 0.34"
(149 x 75 x 8.6 mm)
3.9" x 2" x 0.9"
(99 x 51 x 22.9 mm)
5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
Form Factor Slab Slide Slab Clamshell Slab
Platform / OS iOS (proprietary) Android (proprietary) Android
Network Bands

CDMA: 850, 1900

CDMA: 850, 1900

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

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

CDMA: 850, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 29, 30

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

Data Technology EVDO rA EVDO r0 LTE (Cat 4) EVDO rA LTE (Cat 6)
Features 
Fingerprint Reader - - Yes
stand-alone
- Yes
Flashlight - - Yes Yes Yes
GPS / Location n/a Yes n/a Yes n/a
Ruggedized - - - Yes -
VR-ready - - - - Yes
Water-Resistant - - - Yes -
Accessibility
Adjustable Text Size n/a - n/a - n/a
Hearing Aid Compatible Yes Yes Yes Yes Yes
Multiple Languages n/a Yes n/a Yes n/a
TTY/TDD (Digital) - Yes Yes Yes Yes
Alerts
Extra Display - - - Yes -
Connectivity
Bluetooth Yes Yes Yes Yes Yes
Infrared (IR) - - - - Yes
MirrorLink - - - - Yes
Mobile Hotspot n/a - n/a - n/a
NFC - - - - Yes
USB Yes Yes Yes
Micro-USB
Yes Yes
Micro-USB
Wi-Fi Yes
4 (802.11 b,g,n)
- Yes
4 (802.11 a,b,g,n)
- Yes
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID n/a Yes n/a Yes n/a
Ringer ID n/a Yes n/a Yes n/a
Voice Dialing n/a Yes n/a Yes n/a
Customization
Changeable Body Plates - - - Yes -
Custom Graphics n/a Yes n/a Yes n/a
Custom Ringtones n/a Yes n/a Yes n/a
Real-Music Ringers n/a Yes n/a - n/a
Data & Network
Data Tethering n/a Yes n/a Yes n/a
WAP / Web Browser n/a Yes n/a Yes n/a
Input
Predictive Text Entry n/a Yes n/a Yes n/a
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - Yes - - -
Touch Screen Yes Yes Yes - Yes
Memory
Memory Card Slot - Yes Yes Yes -
Messaging
Email Client n/a - n/a - n/a
EMS / Picture Messaging n/a - n/a Yes n/a
MMS n/a Yes n/a Yes n/a
Text Messaging Templates n/a Yes n/a Yes n/a
Music
FM Radio - - Yes - -
Headphone Jack (3.5mm) Yes - Yes - Yes
Music Player n/a Yes n/a Yes n/a
Photo & Video
DLNA - - - - Yes
Miracast - - - - Yes
TV Output Yes - - - Yes
Video Calling n/a - n/a - n/a
Power
Fast Charging - - - - Yes
Wireless Charging - - - - Yes
Productivity
Alarm n/a Yes n/a Yes n/a
Calculator n/a Yes n/a Yes n/a
Calendar n/a Yes n/a Yes n/a
Voice Memo n/a - n/a Yes n/a
Software
BREW n/a Yes n/a Yes n/a
Games n/a Yes n/a Yes n/a
Voice
HD Voice - - Yes - Yes
Headset Jack (2.5 mm) n/a Yes n/a - n/a
Push-To-Talk - - - Yes -
Speaker Phone Yes Yes Yes Yes Yes
  Apple iPhone 4 (CDMA) Samsung Glyde U940 LG K30 2018 (GSM) Casio G'zOne Boulder Samsung Galaxy S6 (GSM)
  X > < X > < X > < X > < X

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

 
Phone Apple iPhone 4 (CDMA) Samsung Glyde U940 LG K30 2018 (GSM) Casio G'zOne Boulder Samsung Galaxy S6 (GSM)

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