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Phone ZTE Z998 / Unico LTE Sonim XP3plus BlackBerry Curve 8320 Samsung SCH-A990 LG Invision
Current U.S. Carriers (none) AT&T
T-Mobile
Verizon
(none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 4.5" diag.
16 : 9
2.8" diag.
4 : 3
? ? 2.2" diag.
4 : 3
Display Resolution & Type 540 x 960 pixels
(~245 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~143 ppi)
LCD (TFT/TFD)
320 x 240 pixels
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
320 x 240 pixels
(~182 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz 60 Hz ? ? ?
Battery 2,070 mAh 2,300 mAh 1,100 mAh 1,000 mAh 900 mAh
Processor 1.2 GHz Qualcomm Snapdragon 400 MSM8930 2 GHz Qualcomm Snapdragon 662 (SM6115) ? ? ?
RAM 1 GB 2 GB ? ? ?
Storage 4 GB 16 GB ? raw hardware ? raw hardware ? raw hardware
Main Camera 5 megapixel 8 megapixel 2 megapixel 3 megapixel 1 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 720p HD 1080p HD - ? QVGA (320 x 240)
Front Camera 1 megapixel - - - -
Weight 4.8 oz
(136g)
7.76 oz
(220g)
3.92 oz
(111g)
4.4 oz
(125g)
2.85 oz
(81g)
Dimensions 5.2" x 2.6" x 0.4"
(132 x 66 x 10.2 mm)
4.57" x 2.36" x 1.1"
(116 x 60 x 28 mm)
4.21" x 2.36" x 0.61"
(107 x 60 x 15.5 mm)
3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
4.05" x 2.08" x 0.47"
(103 x 53 x 11.9 mm)
Form Factor Slab Clamshell Slab Clamshell Slab
Platform / OS Android (proprietary) BlackBerry OS (proprietary) (proprietary)
Network Bands

4G LTE: 2, 4, 5, 17

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

4G LTE: 1, 2, 3, 4, 5, 7, 12, 13, 14, 25, 26, 30, 39, 40, 41, 66, 71

WCDMA: 1, 2, 4, 5

GSM: 850, 900, 1800, 1900

*

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

Data Technology LTE (Cat 3) LTE (Cat 13) EDGE EVDO r0 HSDPA 3.6
Features 
Barometer - Yes - - -
Flashlight - Yes - Yes -
GPS / Location n/a Yes n/a Yes -
Ruggedized - Yes - - -
Water-Resistant - Yes
IPX8 (SCUBA)
- - -
Accessibility
Adjustable Text Size n/a Yes n/a - -
Hearing Aid Compatible Yes
M3, T4 (very tele-coil compatible)
Yes
M4, T4 (very tele-coil compatible)
Yes
M3, T3 (mostly tele-coil compatible)
Yes
M3 (mostly compatible)
-
Multiple Languages n/a Yes n/a Yes Yes
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Alerts
Extra Display - Yes - Yes -
Ringer Profiles - - Yes - -
Connectivity
Bluetooth Yes Yes Yes Yes Yes
Mobile Hotspot n/a Yes n/a - -
USB Yes
Micro-USB
Yes
USB Type C
Yes Yes Yes
Wi-Fi Yes
4 (802.11 b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Yes
802.11 b,g
- -
Contacts
Picture ID n/a Yes n/a Yes Yes
Ringer ID n/a Yes n/a Yes Yes
Voice Dialing n/a Yes n/a Yes Yes
Customization
Custom Graphics n/a Yes n/a Yes Yes
Custom Ringtones n/a - n/a Yes Yes
Real-Music Ringers n/a - n/a Yes Yes
Data & Network
Data Tethering n/a Yes n/a Yes -
WAP / Web Browser n/a Yes n/a Yes Yes
Input
Predictive Text Entry n/a Yes n/a Yes Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - Yes - -
Touch Screen Yes
Capacitive
- - - -
Memory
Memory Card Slot Yes Yes Yes Yes Yes
Messaging
Email Client n/a - n/a - Yes
EMS / Picture Messaging n/a - n/a Yes -
Instant Messaging n/a - n/a - Yes
MMS n/a Yes n/a Yes Yes
Text Messaging Templates n/a Yes n/a Yes Yes
Music
FM Radio - Yes - - -
Headphone Jack (3.5mm) Yes Yes Yes - -
Music Player n/a Yes n/a Yes Yes
Stereo Speakers - - - Yes -
Photo & Video
TV Output - - - Yes -
Productivity
Alarm n/a Yes n/a Yes Yes
Calculator n/a Yes n/a Yes Yes
Calendar n/a Yes n/a Yes Yes
To-Do List n/a - n/a - -
Voice Memo n/a Yes n/a Yes Yes
Software
BREW n/a - n/a Yes -
Games n/a - n/a Yes Yes
Java (J2ME) n/a - n/a - Yes
Voice
HD Voice - Yes - - -
Push-To-Talk - Yes - - -
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  ZTE Z998 / Unico LTE Sonim XP3plus BlackBerry Curve 8320 Samsung SCH-A990 LG Invision
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone ZTE Z998 / Unico LTE Sonim XP3plus BlackBerry Curve 8320 Samsung SCH-A990 LG Invision

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