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Phone LG Optimus L90 Alcatel 665 Samsung Galaxy S6 (GSM) ZTE Speed Samsung SCH-A645
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 4.7" diag.
16 : 9
1.8" diag.
4 : 3
5.1" diag.
16 : 9
4.5" diag.
16 : 9
?
Display Resolution & Type 540 x 960 pixels
(~234 ppi)
LCD (TFT/TFD)
128 x 160 pixels
(~116 ppi)
LCD (TFT/TFD)
1440 x 2560 pixels
(~576 ppi)
AMOLED
540 x 960 pixels
(~245 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (STN)
Display Refresh 60 Hz ? 60 Hz 60 Hz ?
Battery 2,460 mAh 650 mAh 2,550 mAh 2,000 mAh 1,000 mAh
Processor 1.2 GHz Qualcomm Snapdragon 400 MSM8226 ? 2.1 GHz Samsung Exynos 7420 1.2 GHz Qualcomm Snapdragon 410 MSM8916 ?
RAM 1 GB 16 MB 3 GB 1 GB ?
Storage 8 GB 32 MB 32 GB * 8 GB ? raw hardware
Main Camera 5 megapixel 2 megapixel 16 megapixel 5 megapixel -
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 1080p HD QCIF (176 x 144) 4K UHD 720p HD -
Front Camera Yes - 5 megapixel 2 megapixel -
Weight 4.37 oz
(124g)
2.72 oz
(77g)
4.87 oz
(138g)
4.8 oz
(136g)
3.2 oz
(91g)
Dimensions 5.18" x 2.6" x 0.38"
(132 x 66 x 9.7 mm)
3.78" x 1.89" x 0.66"
(96 x 48 x 16.8 mm)
5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
5.3" x 2.6" x 0.4"
(135 x 66 x 10.2 mm)
3.54" x 1.79" x 0.94"
(90 x 45 x 23.9 mm)
Form Factor Slab Clamshell Slab Slab Clamshell
Platform / OS Android (proprietary) Android Android (proprietary)
Network Bands

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

GSM: 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

*

4G LTE: 25, 26, 41

CDMA: 800, 850, 1900

CDMA: 850, 1900

AMPS: 850

Data Technology HSPA+ 21 - LTE (Cat 6) LTE (Cat 3) 1xRTT
Features 
Fingerprint Reader - - Yes - -
Flashlight Yes - Yes - -
GPS / Location n/a - n/a n/a Yes
VR-ready - - 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 n/a Yes
TTY/TDD (Digital) Yes - Yes Yes Yes
Alerts
Extra Display - Yes - - Yes
Ringer Profiles - Yes - - -
Connectivity
Bluetooth Yes Yes Yes Yes -
Infrared (IR) Yes - Yes - -
MirrorLink - - Yes - -
Mobile Hotspot n/a - n/a n/a -
NFC - - Yes - -
USB Yes Yes
Micro-USB
Yes
Micro-USB
Yes
Micro-USB
-
Wi-Fi Yes
4 (802.11 b,g,n)
- Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 b,g,n)
-
Contacts
Picture ID n/a Yes n/a n/a Yes
Ringer ID n/a Yes n/a n/a -
Voice Dialing n/a - n/a n/a Yes
Customization
Custom Graphics n/a Yes n/a n/a Yes
Custom Ringtones n/a Yes n/a n/a Yes
Real-Music Ringers n/a Yes n/a n/a -
Data & Network
Data Tethering n/a - n/a n/a -
WAP / Web Browser n/a Yes n/a n/a Yes *
Input
Predictive Text Entry n/a Yes n/a n/a Yes
Side Keys Yes Yes Yes Yes Yes
Touch Screen 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 n/a Yes
Instant Messaging n/a Yes n/a n/a -
MMS n/a Yes n/a n/a -
Text Messaging Templates n/a Yes n/a n/a Yes
Music
FM Radio - Yes - - -
Headphone Jack (3.5mm) Yes Yes Yes Yes -
Music Player n/a Yes n/a n/a -
Photo & Video
DLNA - - Yes - -
Miracast - - Yes - -
TV Output - - Yes - -
Power
Fast Charging - - Yes - -
Wireless Charging - - Yes - -
Productivity
Alarm n/a Yes n/a n/a Yes
Calculator n/a Yes n/a n/a Yes
Calendar n/a Yes n/a n/a Yes
To-Do List n/a - n/a n/a Yes
Voice Memo n/a Yes n/a n/a Yes
Software
BREW n/a - n/a n/a Yes *
Games n/a Yes n/a n/a Yes *
Java (J2ME) n/a Yes n/a n/a -
Voice
HD Voice - - Yes Yes -
Headset Jack (2.5 mm) n/a - n/a n/a Yes
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  LG Optimus L90 Alcatel 665 Samsung Galaxy S6 (GSM) ZTE Speed Samsung SCH-A645
  X > < X > < X > < X > < X

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

 
Phone LG Optimus L90 Alcatel 665 Samsung Galaxy S6 (GSM) ZTE Speed Samsung SCH-A645

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