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Phone ZTE Agent Amazon Fire Apple iPhone 3G Samsung SGH-X820
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 2.4" diag.
4 : 3
4.7" diag.
16 : 9
3.5" diag.
5 : 3
?
Display Resolution & Type 240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~312 ppi)
LCD (TFT/TFD)
320 x 480 pixels
(~165 ppi)
LCD (TFT/TFD)
220 x 176 pixels
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz ?
Battery 900 mAh 2,400 mAh ? 650 mAh
Processor ? 2.2 GHz Qualcomm Snapdragon 800 ? ?
RAM ? 2 GB ? ?
Storage ? raw hardware 32 GB * 16 GB * ? raw hardware
Main Camera 1 megapixel 13 megapixel 2 megapixel 2 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture ? 1080p HD - ?
Front Camera - 2 megapixel - -
Weight 3.53 oz
(100g)
5.64 oz
(160g)
4.7 oz
(133g)
2.33 oz
(66g)
Dimensions 4.3" x 1.9" x 0.6"
(109 x 48 x 15.2 mm)
5.5" x 2.6" x 0.35"
(140 x 66 x 8.9 mm)
4.52" x 2.44" x 0.49"
(115 x 62 x 12.4 mm)
4.45" x 1.97" x 0.27"
(113 x 50 x 6.9 mm)
Form Factor Slab Slab Slab Slab
Platform / OS (proprietary) (proprietary) iOS (proprietary)
Network Bands

CDMA: 850, 1700, 1900

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

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

Data Technology 1xRTT LTE (Cat 4) HSDPA 3.6 EDGE
Features 
Flashlight - Yes - -
GPS / Location Yes Yes n/a -
Accessibility
Hearing Aid Compatible Yes
M4, T4 (very tele-coil compatible)
Yes
M4, T4 (very tele-coil compatible)
- -
Multiple Languages Yes Yes n/a Yes
TTY/TDD (Digital) Yes Yes Yes -
Connectivity
Bluetooth Yes Yes Yes Yes
Mobile Hotspot - Yes n/a -
NFC - Yes - -
USB Yes
Micro-USB
Yes
Micro-USB
Yes Yes
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
Yes
802.11 b,g
-
Contacts
Picture ID - Yes n/a Yes
Ringer ID Yes Yes n/a Yes
Voice Dialing - Yes n/a -
Customization
Custom Graphics Yes - n/a Yes
Custom Ringtones Yes Yes n/a Yes
Real-Music Ringers Yes - n/a Yes
Data & Network
Data Tethering - Yes n/a -
External Antenna Jack - - n/a Yes
WAP / Web Browser Yes Yes n/a Yes
Input
Predictive Text Entry Yes Yes n/a Yes
Side Keys Yes Yes Yes Yes
Touch Screen - Yes
Capacitive
Yes
Capacitive
-
Memory
Memory Card Slot Yes - - -
Messaging
Email Client Yes Yes n/a Yes
EMS / Picture Messaging - - n/a Yes
Instant Messaging Yes - n/a -
MMS Yes Yes n/a Yes
Text Messaging Templates Yes Yes n/a Yes
Music
Headphone Jack (3.5mm) Yes Yes Yes -
Music Player Yes Yes n/a -
Stereo Speakers - Yes - -
Photo & Video
Miracast - Yes - -
TV Output - Yes Yes Yes
Productivity
Alarm Yes Yes n/a Yes
Calculator Yes Yes n/a Yes
Calendar Yes Yes n/a Yes
To-Do List - - n/a Yes
Voice Memo Yes Yes n/a Yes
Software
BREW Yes - n/a -
Games Yes Yes n/a Yes
Java (J2ME) - - n/a Yes
Voice
HD Voice - Yes - -
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  ZTE Agent Amazon Fire Apple iPhone 3G Samsung SGH-X820
  X > < X > < X > < X

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Phone ZTE Agent Amazon Fire Apple iPhone 3G Samsung SGH-X820

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