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Phone ZTE Z331 BlackBerry Z10 (CDMA) Nokia 6310i Samsung SGH-T819 Sony Xperia XZ2
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Not yet released
Specifications 
Display Size 2.4" diag.
4 : 3
4.2" diag.
5 : 3
? ? 5.7" diag.
18 : 9
Display Resolution & Type 176 x 220 pixels
(~117 ppi)
LCD (TFT/TFD)
768 x 1280 pixels
(~355 ppi)
LCD (TFT/TFD)
96 x 65 pixels 176 x 220 pixels
LCD (TFT/TFD)
1080 x 2160 pixels
(~424 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? ? 60 Hz
Battery 950 mAh 1,800 mAh ? ? 3,180 mAh
Processor ? 1.5 GHz Qualcomm Snapdragon S4 ? ? Qualcomm Snapdragon 845
RAM ? 2 GB ? ? 4 GB
Storage ? raw hardware 16 GB ? raw hardware ? raw hardware 64 GB
Main Camera 3 megapixel 8 megapixel - 1 megapixel 19 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture QCIF (176 x 144) 1080p HD - QCIF (176 x 144) 4K UHD
Front Camera - 2 megapixel - - 5 megapixel
Weight 4 oz
(113g)
4.78 oz
(135g)
3.92 oz
(111g)
3.46 oz
(98g)
6.98 oz
(198g)
Dimensions 3.84" x 2.02" x 0.69"
(98 x 51 x 17.5 mm)
5.12" x 2.58" x 0.35"
(130 x 66 x 9 mm)
5.08" x 1.85" x 0.75"
(129 x 47 x 19.1 mm)
3.96" x 2.03" x 0.55"
(101 x 52 x 14 mm)
6.02" x 2.83" x 0.44"
(153 x 72 x 11.1 mm)
Form Factor Clamshell Slab Slab Slide Slab
Platform / OS (proprietary) BlackBerry 10 (proprietary) (proprietary) Android
Network Bands

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

4G LTE: 13

WCDMA: 1, 8

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

WCDMA: 4

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 29, 38, 40, 41, 66

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

Data Technology HSDPA 3.6 LTE (Cat 3) GPRS WCDMA (UMTS) LTE (Cat 18)
Features 
Fingerprint Reader - - - - Yes
stand-alone
Flashlight - - - - Yes
GPS / Location Yes n/a Yes - n/a
Water-Resistant - - - - Yes
IPX5 (direct spray)
Accessibility
Adjustable Text Size - n/a - - n/a
Hearing Aid Compatible Yes - - - Yes
Multiple Languages Yes n/a Yes Yes n/a
TTY/TDD (Digital) Yes Yes - - -
Alerts
Extra Display Yes - - - -
Ringer Profiles Yes Yes Yes Yes -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) - - Yes - -
Mobile Hotspot - n/a - - n/a
NFC - Yes - - Yes
USB Yes
Micro-USB
Yes
Micro-USB
- Yes Yes
USB Type C
Wi-Fi - Yes
4 (802.11 a,b,g,n)
- - Yes
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID Yes n/a Yes Yes n/a
Ringer ID Yes n/a Yes Yes n/a
Voice Dialing - n/a Yes Yes n/a
Customization
Custom Graphics Yes n/a - Yes n/a
Custom Ringtones Yes n/a Yes Yes n/a
Real-Music Ringers Yes n/a - Yes n/a
Data & Network
Data Tethering Yes n/a Yes Yes n/a
Dual-SIM - - - - Yes
WAP / Web Browser Yes n/a Yes Yes n/a
Input
Predictive Text Entry Yes n/a Yes Yes n/a
Side Keys Yes Yes Yes Yes Yes
Touch Screen - Yes - - Yes
Memory
Memory Card Slot Yes Yes - Yes Yes
Messaging
Email Client Yes n/a - - n/a
EMS / Picture Messaging - n/a Yes Yes n/a
Instant Messaging Yes n/a - Yes n/a
MMS Yes n/a - Yes n/a
Text Messaging Templates Yes n/a Yes Yes n/a
Music
Headphone Jack (3.5mm) - Yes - - -
Music Player Yes n/a - Yes n/a
Stereo Speakers - - - - Yes
Photo & Video
DLNA - Yes - - Yes
Miracast - - - - Yes
TV Output - Yes - - -
Power
Fast Charging - - - - Yes
Wireless Charging - - - - Yes
Productivity
Alarm Yes n/a Yes Yes n/a
Calculator Yes n/a Yes Yes n/a
Calendar Yes n/a Yes Yes n/a
To-Do List - n/a Yes Yes n/a
Voice Memo Yes n/a Yes - n/a
Software
Games Yes n/a Yes Yes n/a
Java (J2ME) Yes n/a Yes Yes n/a
Voice
HD Voice - - - - Yes
Speaker Phone Yes Yes - Yes Yes
  ZTE Z331 BlackBerry Z10 (CDMA) Nokia 6310i Samsung SGH-T819 Sony Xperia XZ2
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone ZTE Z331 BlackBerry Z10 (CDMA) Nokia 6310i Samsung SGH-T819 Sony Xperia XZ2

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