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Phone ZTE Z998 / Unico LTE Nokia N-Gage QD Ericsson T66 Sony Xperia XA2 Ultra Nokia 6108
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 4.5" diag.
16 : 9
? ? 6" diag.
16 : 9
?
Display Resolution & Type 540 x 960 pixels
(~245 ppi)
LCD (TFT/TFD)
176 x 208 pixels
LCD (Color)
? 1080 x 1920 pixels
(~367 ppi)
LCD (TFT/TFD)
128 x 128 pixels
LCD (Color)
Display Refresh 60 Hz ? ? 60 Hz ?
Battery 2,070 mAh 1,070 mAh ? 3,580 mAh 850 mAh
Processor 1.2 GHz Qualcomm Snapdragon 400 MSM8930 ? ? Qualcomm Snapdragon 630 ?
RAM 1 GB ? ? 4 GB ?
Storage 4 GB ? raw hardware ? raw hardware 32 GB * ? raw hardware
Main Camera 5 megapixel - - 23 megapixel -
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 720p HD - - 4K UHD -
Front Camera 1 megapixel - - 16 megapixel -
Weight 4.8 oz
(136g)
5.04 oz
(143g)
2.08 oz
(59g)
7.79 oz
(221g)
3.46 oz
(98g)
Dimensions 5.2" x 2.6" x 0.4"
(132 x 66 x 10.2 mm)
4.65" x 2.68" x 0.87"
(118 x 68 x 22.1 mm)
3.62" x 1.61" x 0.69"
(92 x 41 x 17.5 mm)
6.42" x 3.15" x 0.37"
(163 x 80 x 9.5 mm)
4.17" x 1.83" x 0.9"
(106 x 46 x 22.9 mm)
Form Factor Slab Slab Slab Slab Slab
Platform / OS Android S60 (Symbian) (proprietary) Android (proprietary)
Network Bands

4G LTE: 2, 4, 5, 17

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

GSM: 850, 1900

*

GSM: 900, 1800, 1900

4G LTE: 1, 2, 4, 5, 7, 8, 12, 13, 17, 25, 28, 29, 66

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

Data Technology LTE (Cat 3) GPRS - LTE (Cat 13) GPRS
Features 
Fingerprint Reader - - - Yes
stand-alone
-
Flashlight - - - Yes -
GPS / Location n/a n/a - n/a -
Accessibility
Adjustable Text Size n/a n/a - n/a -
Hearing Aid Compatible Yes - - Yes -
Multiple Languages n/a n/a Yes n/a Yes
TTY/TDD (Digital) Yes - - - -
Alerts
Ringer Profiles - Yes Yes - Yes
Connectivity
Bluetooth Yes Yes - Yes -
Infrared (IR) - - - - Yes
Mobile Hotspot n/a n/a - n/a -
NFC - - - Yes -
USB Yes
Micro-USB
- - Yes
USB Type C
-
Wi-Fi Yes
4 (802.11 b,g,n)
- - Yes
5 (802.11 a,ac,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 -
Customization
Custom Graphics n/a n/a Yes n/a Yes
Custom Ringtones n/a n/a Yes n/a Yes
Real-Music Ringers n/a n/a - n/a -
Data & Network
Data Tethering n/a n/a - n/a -
WAP / Web Browser n/a n/a Yes n/a Yes
Input
Predictive Text Entry n/a n/a Yes n/a Yes
Side Keys Yes - Yes Yes Yes
Stylus - - - - Yes
Touch Screen Yes - - Yes -
Memory
Memory Card Slot Yes Yes - Yes -
Messaging
Email Client n/a n/a - n/a Yes
EMS / Picture Messaging n/a n/a Yes n/a -
Instant Messaging n/a n/a - n/a -
MMS n/a n/a - n/a Yes
Text Messaging Templates n/a n/a Yes n/a -
Music
FM Radio - - - Yes -
Headphone Jack (3.5mm) Yes - - Yes -
Music Player n/a n/a - n/a -
Photo & Video
Miracast - - - Yes -
Power
Fast Charging - - - Yes -
Productivity
Alarm n/a n/a Yes n/a Yes
Calculator n/a n/a Yes n/a Yes
Calendar n/a n/a Yes n/a Yes
To-Do List n/a n/a Yes n/a Yes
Voice Memo n/a n/a - n/a -
Software
Games n/a n/a Yes n/a Yes
Java (J2ME) n/a n/a - n/a Yes
Voice
Headset Jack (2.5 mm) n/a n/a - n/a -
Speaker Phone Yes Yes - Yes Yes
  * Some versions only
  ZTE Z998 / Unico LTE Nokia N-Gage QD Ericsson T66 Sony Xperia XA2 Ultra Nokia 6108
  X > < X > < X > < X > < X

NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone ZTE Z998 / Unico LTE Nokia N-Gage QD Ericsson T66 Sony Xperia XA2 Ultra Nokia 6108

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