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Phone ZTE Z998 / Unico LTE Nokia XR21 Samsung Galaxy S II / SGH-i777 LG V VX-9800
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 4.5" diag.
16 : 9
6.5" diag.
20 : 9
4.3" diag.
5 : 3
?
Display Resolution & Type 540 x 960 pixels
(~245 ppi)
LCD (TFT/TFD)
1080 x 2400 pixels
(~406 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~217 ppi)
AMOLED
320 x 256 pixels
LCD (TFT/TFD)
Display Refresh 60 Hz 60 Hz 60 Hz ?
Battery 2,070 mAh 4,800 mAh 1,650 mAh 1,300 mAh
Processor 1.2 GHz Qualcomm Snapdragon 400 MSM8930 Snapdragon 695 1.2 GHz Samsung Exynos dual-core ?
RAM 1 GB 6 GB ? ?
Storage 4 GB 128 GB 16 GB ? raw hardware
Main Camera 5 megapixel 64 megapixel 8 megapixel 1 megapixel
Wide Camera - 8 megapixel - -
Tele Camera - - - -
Video Capture 720p HD 1080p HD 1080p HD QVGA (320 x 240)
Front Camera 1 megapixel 16 megapixel 2 megapixel -
Weight 4.8 oz
(136g)
8.16 oz
(231g)
4.3 oz
(122g)
5.19 oz
(147g)
Dimensions 5.2" x 2.6" x 0.4"
(132 x 66 x 10.2 mm)
6.61" x 3.09" x 0.41"
(168 x 78 x 10.4 mm)
4.96" x 2.6" x 0.35"
(126 x 66 x 8.9 mm)
4.57" x 1.97" x 1"
(116 x 50 x 25.4 mm)
Form Factor Slab Slab Slab Clamshell
Platform / OS Android Android Android (proprietary)
Network Bands

4G LTE: 2, 4, 5, 17

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

5G: 1, 2, 3, 5, 7, 20, 25, 28, 40, 41, 66, 71, 77-C, 78, 79, 260, 261

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 20, 25, 26, 28, 32, 38, 39, 40, 41, 42, 43, 48, 66, 71

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

Data Technology LTE (Cat 3) NR (5G) HSPA+ 21 EVDO r0
Features 
Barometer - Yes - -
Fingerprint Reader - Yes
stand-alone
- -
Flashlight - Yes - -
GPS / Location n/a n/a n/a Yes
Ruggedized - Yes - -
Water-Resistant - Yes
IPX8 (SCUBA)
- -
Accessibility
Adjustable Text Size n/a n/a n/a -
Hearing Aid Compatible Yes
M3, T4 (very tele-coil compatible)
Yes
M3, T3 (mostly tele-coil compatible)
Yes
M3 (mostly compatible)
Yes
M3 (mostly compatible)
Multiple Languages n/a n/a n/a Yes
TTY/TDD (Digital) Yes - Yes Yes
Alerts
Extra Display - - - Yes
Connectivity
Bluetooth Yes Yes Yes Yes
Mobile Hotspot n/a n/a n/a -
NFC - Yes Yes -
USB Yes
Micro-USB
Yes
USB Type C
Yes
Micro-USB
Yes
Wi-Fi Yes
4 (802.11 b,g,n)
Yes
6 (802.11 a,ac,ax,b,g,n)
Yes
4 (802.11 a,b,g,n)
-
Contacts
Picture ID n/a n/a n/a Yes
Ringer ID n/a n/a n/a Yes
Voice Dialing n/a n/a n/a Yes
Customization
Custom Graphics n/a n/a n/a Yes
Custom Ringtones n/a n/a n/a Yes
Real-Music Ringers n/a n/a n/a -
Data & Network
Data Tethering n/a n/a n/a Yes
Dual-SIM - Yes - -
WAP / Web Browser n/a n/a n/a Yes
Input
Predictive Text Entry n/a n/a n/a Yes
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware - - - Yes
Touch Screen Yes
Capacitive
Yes
Capacitive
Yes
Capacitive
-
Memory
Memory Card Slot Yes - Yes Yes
Messaging
Email Client n/a n/a n/a -
EMS / Picture Messaging n/a n/a n/a Yes
Instant Messaging n/a n/a n/a -
MMS n/a n/a n/a Yes
Text Messaging Templates n/a n/a n/a Yes
Music
FM Radio - Yes - -
Headphone Jack (3.5mm) Yes Yes Yes -
Music Player n/a n/a n/a Yes
Stereo Speakers - - - Yes
Photo & Video
DLNA - - Yes -
TV Output - - Yes -
Power
Fast Charging - Yes - -
Productivity
Alarm n/a n/a n/a Yes
Calculator n/a n/a n/a Yes
Calendar n/a n/a n/a Yes
Voice Memo n/a n/a n/a Yes
Software
BREW n/a n/a n/a Yes
Games n/a n/a n/a Yes
Voice
Headset Jack (2.5 mm) n/a n/a n/a Yes
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  ZTE Z998 / Unico LTE Nokia XR21 Samsung Galaxy S II / SGH-i777 LG V VX-9800
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Phone ZTE Z998 / Unico LTE Nokia XR21 Samsung Galaxy S II / SGH-i777 LG V VX-9800

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