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Phone Samsung Flight II ZTE Z221 BlackBerry 8820 Samsung SGH-X820 AT&T Vista
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 2.8" diag.
5 : 3
2" diag.
4 : 3
? ? 5.5" diag.
18 : 9
Display Resolution & Type 240 x 400 pixels
(~167 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~200 ppi)
LCD (TFT/TFD)
320 x 240 pixels
LCD (TFT/TFD)
220 x 176 pixels
LCD (TFT/TFD)
720 x 1440 pixels
(~293 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? ? 60 Hz
Battery ? 900 mAh 1,400 mAh 650 mAh 2,450 mAh
Processor ? ? ? ? 2 GHz MediaTek Helio A22 (MT6761V)
RAM ? ? ? ? 3 GB
Storage ? raw hardware 142 MB ? raw hardware ? raw hardware 32 GB
Main Camera 2 megapixel Yes - 2 megapixel 8 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture QVGA (320 x 240) QCIF (176 x 144) - ? 1080p HD
Front Camera - - - - 5 megapixel
Weight 3.5 oz
(99g)
3.24 oz
(92g)
4.73 oz
(134g)
2.33 oz
(66g)
5.51 oz
(156g)
Dimensions 4.41" x 2.11" x 0.5"
(112 x 54 x 12.7 mm)
3.76" x 1.92" x 0.73"
(96 x 49 x 18.5 mm)
4.49" x 2.6" x 0.55"
(114 x 66 x 14 mm)
4.45" x 1.97" x 0.27"
(113 x 50 x 6.9 mm)
5.88" x 2.82" x 0.35"
(149 x 72 x 8.9 mm)
Form Factor Slide Clamshell Slab Slab Slab
Platform / OS (proprietary) (proprietary) BlackBerry OS (proprietary) Android
Network Bands

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30

WCDMA: 1, 2, 4, 5, 8

Data Technology HSPA 7.2 HSDPA 3.6 EDGE EDGE LTE (Cat 4)
Features 
Flashlight - - - - Yes
GPS / Location Yes Yes n/a - n/a
Accessibility
Hearing Aid Compatible - Yes - - Yes
Multiple Languages Yes Yes n/a Yes n/a
TTY/TDD (Digital) Yes Yes Yes - -
Alerts
Extra Display - Yes - - -
Ringer Profiles Yes Yes Yes - -
Connectivity
Bluetooth Yes Yes Yes Yes Yes
USB Yes Yes Yes
Mini-USB
Yes Yes
USB Type C
Wi-Fi - - Yes - Yes
Contacts
Picture ID Yes - n/a Yes n/a
Ringer ID Yes - n/a Yes n/a
Voice Dialing Yes - n/a - n/a
Customization
Custom Graphics Yes Yes n/a Yes n/a
Custom Ringtones Yes Yes n/a Yes n/a
Real-Music Ringers Yes Yes n/a Yes n/a
Data & Network
Data Tethering Yes - n/a - n/a
External Antenna Jack - - n/a Yes n/a
WAP / Web Browser Yes Yes n/a Yes n/a
Input
Predictive Text Entry Yes Yes n/a Yes n/a
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware Yes - Yes - -
Touch Screen Yes - - - Yes
Memory
Memory Card Slot Yes - Yes - Yes
Messaging
Email Client Yes Yes n/a Yes n/a
EMS / Picture Messaging - - n/a Yes n/a
Instant Messaging Yes Yes n/a - n/a
MMS Yes Yes n/a Yes n/a
Text Messaging Templates Yes Yes n/a Yes n/a
Music
Headphone Jack (3.5mm) Yes - - - Yes
Music Player Yes - n/a - n/a
Photo & Video
TV Output - - - Yes -
Productivity
Alarm Yes Yes n/a Yes n/a
Calculator Yes Yes n/a Yes n/a
Calendar Yes Yes n/a Yes n/a
To-Do List Yes - n/a Yes n/a
Voice Memo Yes Yes n/a Yes n/a
Software
Games Yes Yes n/a Yes n/a
Java (J2ME) Yes Yes n/a Yes n/a
Voice
HD Voice - - - - Yes
Push-To-Talk - - Yes * - -
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Samsung Flight II ZTE Z221 BlackBerry 8820 Samsung SGH-X820 AT&T Vista
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Phone Samsung Flight II ZTE Z221 BlackBerry 8820 Samsung SGH-X820 AT&T Vista

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