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Phone ZTE Speed ZTE Groove LG Cosmos 2 / Cosmos 3 Amazon Fire Samsung SPH-i550
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Not yet released
Specifications 
Display Size 4.5" diag.
16 : 9
3.2" diag.
5 : 3
2" diag.
4 : 3
4.7" diag.
16 : 9
?
Display Resolution & Type 540 x 960 pixels
(~245 ppi)
LCD (TFT/TFD)
320 x 480 pixels
(~180 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~200 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~312 ppi)
LCD (TFT/TFD)
320 x 320 pixels
LCD (TFT/TFD)
Display Refresh 60 Hz 60 Hz ? ? ?
Battery 2,000 mAh 1,500 mAh 900 mAh 2,400 mAh ?
Processor 1.2 GHz Qualcomm Snapdragon 410 MSM8916 800 MHz Qualcomm MSM7627A ? 2.2 GHz Qualcomm Snapdragon 800 200 MHz Motorola MX-1
RAM 1 GB 512 MB ? 2 GB ?
Storage 8 GB 1 GB ? raw hardware 32 GB * ? raw hardware
Main Camera 5 megapixel 3 megapixel 1 megapixel 13 megapixel 1 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 720p HD 720p HD - 1080p HD ?
Front Camera 2 megapixel Yes - 2 megapixel -
Weight 4.8 oz
(136g)
4.5 oz
(128g)
4.58 oz
(130g)
5.64 oz
(160g)
?
Dimensions 5.3" x 2.6" x 0.4"
(135 x 66 x 10.2 mm)
4.67" x 2.46" x 0.55"
(119 x 62 x 14 mm)
4.41" x 2.06" x 0.63"
(112 x 52 x 16 mm)
5.5" x 2.6" x 0.35"
(140 x 66 x 8.9 mm)
3.46" x 2.34" x 1.1"
(88 x 59 x 27.9 mm)
Form Factor Slab Slab Slide Slab Clamshell
Platform / OS Android Android (proprietary) (proprietary) Palm OS
Network Bands

4G LTE: 25, 26, 41

CDMA: 800, 850, 1900

CDMA: 850, 1700, 1900

CDMA: 850, 1900

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

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

Data Technology LTE (Cat 3) EVDO rA 1xRTT LTE (Cat 4) 1xRTT
Features 
Flashlight - - - Yes -
GPS / Location n/a n/a Yes Yes n/a
Accessibility
Adjustable Text Size n/a n/a Yes - n/a
Hearing Aid Compatible Yes - Yes Yes -
Multiple Languages n/a n/a Yes Yes n/a
TTY/TDD (Digital) Yes - Yes Yes Yes
Alerts
Extra Display - - - - Yes
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
-
Infrared (IR) - - - - Yes
Mobile Hotspot n/a n/a - Yes n/a
NFC - - - Yes -
USB Yes
Micro-USB
Yes
Micro-USB
Yes
Micro-USB
Yes
Micro-USB
-
Wi-Fi Yes
4 (802.11 b,g,n)
Yes - Yes
5 (802.11 a,ac,b,g,n)
-
Contacts
Picture ID n/a n/a Yes Yes n/a
Ringer ID n/a n/a Yes Yes n/a
Voice Dialing n/a n/a Yes Yes n/a
Customization
Custom Graphics n/a n/a Yes - n/a
Custom Ringtones n/a n/a Yes Yes n/a
Real-Music Ringers n/a n/a Yes - n/a
Data & Network
Data Tethering n/a n/a - Yes n/a
WAP / Web Browser n/a n/a Yes Yes n/a
Input
Predictive Text Entry n/a 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 - Yes
Messaging
Email Client n/a n/a - Yes n/a
Instant Messaging n/a n/a - - n/a
MMS n/a n/a Yes Yes n/a
Text Messaging Templates n/a n/a Yes Yes n/a
Music
Headphone Jack (3.5mm) Yes Yes Yes Yes -
Music Player n/a n/a Yes Yes n/a
Stereo Speakers - - - Yes -
Photo & Video
Miracast - - - Yes -
TV Output - - - Yes -
Productivity
Alarm n/a n/a Yes Yes n/a
Calculator n/a n/a Yes Yes n/a
Calendar n/a n/a Yes Yes n/a
To-Do List n/a n/a - - n/a
Voice Memo n/a n/a Yes Yes n/a
Software
BREW n/a n/a Yes - n/a
Games n/a n/a Yes Yes n/a
Voice
HD Voice Yes - - Yes -
Headset Jack (2.5 mm) n/a n/a - - n/a
Speaker Phone Yes Yes Yes Yes -
  ZTE Speed ZTE Groove LG Cosmos 2 / Cosmos 3 Amazon Fire Samsung SPH-i550
  X > < X > < X > < X > < X

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

 
Phone ZTE Speed ZTE Groove LG Cosmos 2 / Cosmos 3 Amazon Fire Samsung SPH-i550

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