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Phone ZTE Z998 / Unico LTE BlackBerry Curve 8320 Nokia C100 Samsung SCH-A990 Huawei Vitria
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 4.5" diag.
16 : 9
? 5.5" diag.
18 : 9
? 4" diag.
5 : 3
Display Resolution & Type 540 x 960 pixels
(~245 ppi)
LCD (TFT/TFD)
320 x 240 pixels
LCD (TFT/TFD)
720 x 1440 pixels
(~295 ppi)
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz ? 60 Hz ? 60 Hz
Battery 2,070 mAh 1,100 mAh 3,000 mAh 1,000 mAh 1,750 mAh
Processor 1.2 GHz Qualcomm Snapdragon 400 MSM8930 ? 2 GHz MediaTek Helio A22 ? 1.2 GHz Qualcomm Snapdragon 400 MSM8930
RAM 1 GB ? 3 GB ? 1 GB
Storage 4 GB ? raw hardware 32 GB ? raw hardware 4 GB
Main Camera 5 megapixel 2 megapixel 8 megapixel 3 megapixel 5 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 720p HD - 1080p HD ? 720p HD
Front Camera 1 megapixel - 5 megapixel - Yes
Weight 4.8 oz
(136g)
3.92 oz
(111g)
5.97 oz
(169g)
4.4 oz
(125g)
4.94 oz
(140g)
Dimensions 5.2" x 2.6" x 0.4"
(132 x 66 x 10.2 mm)
4.21" x 2.36" x 0.61"
(107 x 60 x 15.5 mm)
5.89" x 2.82" x 0.38"
(150 x 72 x 9.7 mm)
3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
4.99" x 2.51" x 0.46"
(127 x 64 x 11.7 mm)
Form Factor Slab Slab Slab Clamshell Slab
Platform / OS Android BlackBerry OS Android (proprietary) Android
Network Bands

4G LTE: 2, 4, 5, 17

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

GSM: 850, 900, 1800, 1900

4G LTE: 2, 4, 5, 12, 13, 41, 66, 71

WCDMA: 2, 4, 5

GSM: 850, 1900

CDMA: 850, 1900

4G LTE: 4

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

Data Technology LTE (Cat 3) EDGE LTE (Cat 4) EVDO r0 LTE (Cat 3)
Features 
Barometer - - Yes - -
Flashlight - - Yes Yes -
GPS / Location n/a n/a n/a Yes n/a
Water-Resistant - - Yes
IPX2 (drip)
- -
Accessibility
Adjustable Text Size n/a n/a n/a - n/a
Hearing Aid Compatible Yes
M3, T4 (very tele-coil compatible)
Yes
M3, T3 (mostly tele-coil compatible)
Yes
M4, T3 (mostly tele-coil compatible)
Yes
M3 (mostly compatible)
Yes
M3, T3 (mostly tele-coil compatible)
Multiple Languages n/a n/a n/a Yes n/a
TTY/TDD (Digital) Yes Yes - Yes Yes
Alerts
Extra Display - - - Yes -
Ringer Profiles - Yes - - -
Connectivity
Bluetooth Yes Yes Yes Yes Yes
Mobile Hotspot n/a n/a n/a - n/a
USB Yes
Micro-USB
Yes Yes
USB Type C
Yes Yes
Micro-USB
Wi-Fi Yes
4 (802.11 b,g,n)
Yes
802.11 b,g
Yes
5 (802.11 ac,b,g,n)
- Yes
4 (802.11 b,g,n)
Contacts
Picture ID n/a n/a n/a Yes n/a
Ringer ID n/a n/a n/a Yes n/a
Voice Dialing n/a n/a n/a Yes n/a
Customization
Custom Graphics n/a n/a n/a Yes n/a
Custom Ringtones n/a n/a n/a Yes n/a
Real-Music Ringers n/a n/a n/a Yes n/a
Data & Network
Data Tethering n/a n/a n/a Yes n/a
WAP / Web Browser n/a n/a n/a Yes n/a
Input
Predictive Text Entry n/a n/a n/a Yes n/a
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - Yes - - -
Touch Screen Yes
Capacitive
- Yes
Capacitive
- Yes
Capacitive
Memory
Memory Card Slot Yes Yes Yes Yes Yes
Messaging
Email Client n/a n/a n/a - n/a
EMS / Picture Messaging n/a n/a n/a Yes n/a
Instant Messaging n/a n/a n/a - n/a
MMS n/a n/a n/a Yes n/a
Text Messaging Templates n/a n/a n/a Yes n/a
Music
FM Radio - - - - Yes
Headphone Jack (3.5mm) Yes Yes Yes - Yes
Music Player n/a n/a n/a Yes n/a
Stereo Speakers - - - Yes -
Photo & Video
DLNA - - - - Yes
TV Output - - - Yes -
Productivity
Alarm n/a n/a n/a Yes n/a
Calculator n/a n/a n/a Yes n/a
Calendar n/a n/a n/a Yes n/a
To-Do List n/a n/a n/a - n/a
Voice Memo n/a n/a n/a Yes n/a
Software
BREW n/a n/a n/a Yes n/a
Games n/a n/a n/a Yes n/a
Java (J2ME) n/a n/a n/a - n/a
Voice
HD Voice - - Yes - -
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  ZTE Z998 / Unico LTE BlackBerry Curve 8320 Nokia C100 Samsung SCH-A990 Huawei Vitria
  X > < X > < X > < X > < X

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Phone ZTE Z998 / Unico LTE BlackBerry Curve 8320 Nokia C100 Samsung SCH-A990 Huawei Vitria

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