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Phone Samsung SCH-A990 ZTE Z331 Samsung Galaxy J2 / J2 Pure / J2 Dash
Current U.S. Carriers (none) (none) (none)
Global Availability Released Released Released
Specifications 
Display Size ? 2.4" diag.
4 : 3
5" diag.
16 : 9
Display Resolution & Type 240 x 320 pixels
LCD (TFT/TFD)
176 x 220 pixels
(~117 ppi)
LCD (TFT/TFD)
540 x 960 pixels
(~220 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz
Battery 1,000 mAh 950 mAh 2,600 mAh
Processor ? ? 1.4 GHz Samsung Exynos 7570
RAM ? ? 2 GB
Storage ? raw hardware ? raw hardware 16 GB
Main Camera 3 megapixel 3 megapixel 8 megapixel
Wide Camera - - -
Tele Camera - - -
Video Capture ? QCIF (176 x 144) 1080p HD
Front Camera - - 5 megapixel
Weight 4.4 oz
(125g)
4 oz
(113g)
5.43 oz
(154g)
Dimensions 3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
3.84" x 2.02" x 0.69"
(98 x 51 x 17.5 mm)
5.65" x 2.84" x 0.35"
(144 x 72 x 8.9 mm)
Form Factor Clamshell Clamshell Slab
Platform / OS (proprietary) (proprietary) Android
Network Bands

CDMA: 850, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

4G LTE: 2, 3, 4, 5, 7, 12, 14, 66, 71

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

Data Technology EVDO r0 HSDPA 3.6 LTE (Cat 4)
Features 
Flashlight Yes - Yes
GPS / Location Yes Yes n/a
Accessibility
Hearing Aid Compatible Yes
M3 (mostly compatible)
Yes
M3, T4 (very tele-coil compatible)
Yes
M3, T3 (mostly tele-coil compatible)
Multiple Languages Yes Yes n/a
TTY/TDD (Digital) Yes Yes Yes
Alerts
Extra Display Yes Yes -
Ringer Profiles - Yes -
Connectivity
Bluetooth Yes Yes Yes
USB Yes Yes
Micro-USB
Yes
Micro-USB
Wi-Fi - - Yes
4 (802.11 b,g,n)
Contacts
Picture ID Yes Yes n/a
Ringer ID Yes Yes n/a
Voice Dialing Yes - n/a
Customization
Custom Graphics Yes Yes n/a
Custom Ringtones Yes Yes n/a
Real-Music Ringers Yes Yes n/a
Data & Network
Data Tethering Yes Yes n/a
WAP / Web Browser Yes Yes n/a
Input
Predictive Text Entry Yes Yes n/a
Side Keys Yes Yes Yes
Touch Screen - - Yes
Capacitive
Memory
Memory Card Slot Yes Yes Yes
Messaging
Email Client - Yes n/a
EMS / Picture Messaging Yes - n/a
Instant Messaging - Yes n/a
MMS Yes Yes n/a
Text Messaging Templates Yes Yes n/a
Music
Headphone Jack (3.5mm) - - Yes
Music Player Yes Yes n/a
Stereo Speakers Yes - -
Photo & Video
TV Output Yes - -
Productivity
Alarm Yes Yes n/a
Calculator Yes Yes n/a
Calendar Yes Yes n/a
Voice Memo Yes Yes n/a
Software
BREW Yes - n/a
Games Yes Yes n/a
Java (J2ME) - Yes n/a
Voice
Speaker Phone Yes Yes Yes
  Samsung SCH-A990 ZTE Z331 Samsung Galaxy J2 / J2 Pure / J2 Dash
  X > < X > < X

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

 
Phone Samsung SCH-A990 ZTE Z331 Samsung Galaxy J2 / J2 Pure / J2 Dash

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