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Phone Samsung SGH-X640 ZTE Blade Z Max Motorola Bali Samsung SCH-A990 LG Stylo 4
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 6" diag.
16 : 9
2.2" diag.
4 : 3
? 6.2" diag.
18 : 9
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
1080 x 1920 pixels
(~367 ppi)
LCD (TFT/TFD)
176 x 220 pixels
(~128 ppi)
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
1080 x 2160 pixels
(~390 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? ? 60 Hz
Battery 800 mAh 4,080 mAh 950 mAh 1,000 mAh 3,300 mAh
Processor ? 1.4 GHz Qualcomm Snapdragon 435 (MSM8940) ? ? 1.8 GHz Qualcomm Snapdragon 450
RAM ? 2 GB ? ? 2 GB *
Storage ? raw hardware 32 GB ? raw hardware ? raw hardware 32 GB *
Main Camera Yes 16 megapixel 1 megapixel 3 megapixel 13 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - 1080p HD ? ? 1080p HD
Front Camera - 8 megapixel - - 5 megapixel
Weight 3 oz
(85g)
6.58 oz
(186g)
2.6 oz
(74g)
4.4 oz
(125g)
6.07 oz
(172g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
6.51" x 3.28" x 0.33"
(165 x 83 x 8.3 mm)
3.8" x 1.8" x 0.6"
(97 x 46 x 15.2 mm)
3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
6.31" x 3.06" x 0.33"
(160 x 78 x 8.4 mm)
Form Factor Clamshell Slab Clamshell Clamshell Slab
Platform / OS (proprietary) Android (proprietary) (proprietary) Android
Network Bands

GSM: 900, 1800, 1900

4G LTE: 2, 4, 5, 12, 66

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

CDMA: 1900

CDMA: 850, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 12, 13, 14, 20, 29, 30, 38, 41, 66, 71

WCDMA: 1, 2, 4, 5

GSM: 850, 900, 1800, 1900

*

Data Technology GPRS LTE (Cat 6) 1xRTT EVDO r0 LTE (Cat 6)
Features 
Fingerprint Reader - Yes
stand-alone
- - Yes
stand-alone
Flashlight - Yes - Yes Yes
GPS / Location - n/a Yes Yes n/a
Accessibility
Hearing Aid Compatible - Yes
M4, T3 (mostly tele-coil compatible)
Yes
M3, T4 (very tele-coil compatible)
Yes
M3 (mostly compatible)
Yes
M4, T3 (mostly tele-coil compatible)
Multiple Languages Yes n/a Yes Yes n/a
TTY/TDD (Digital) - Yes Yes Yes Yes
Alerts
Extra Display - - Yes Yes -
Connectivity
Bluetooth - Yes Yes Yes Yes
NFC - - - - Yes *
USB - Yes
USB Type C
Yes
Mini-USB
Yes 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 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 Yes n/a
Custom Ringtones Yes n/a Yes Yes n/a
Real-Music Ringers - n/a Yes Yes n/a
Data & Network
Data Tethering - n/a - Yes n/a
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
Stylus - - - - Yes
Touch Screen - Yes
Capacitive
- - Yes
Capacitive
Memory
Memory Card Slot - Yes Yes Yes Yes
Messaging
Email Client - n/a Yes - n/a
EMS / Picture Messaging Yes n/a - Yes n/a
Instant Messaging - n/a Yes - n/a
MMS Yes n/a Yes Yes n/a
Text Messaging Templates Yes n/a Yes Yes n/a
Music
FM Radio - Yes - - Yes
Headphone Jack (3.5mm) - Yes - - Yes
Music Player - n/a Yes Yes n/a
Stereo Speakers - - - Yes -
Photo & Video
DLNA - - - - Yes
TV Output - - - Yes -
Power
Fast 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 Yes n/a - - n/a
Voice Memo Yes n/a Yes Yes n/a
Software
BREW - n/a - Yes n/a
Games Yes n/a Yes Yes n/a
Java (J2ME) Yes n/a Yes - n/a
Voice
HD Voice - Yes - - Yes
Headset Jack (2.5 mm) Yes n/a Yes - n/a
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Samsung SGH-X640 ZTE Blade Z Max Motorola Bali Samsung SCH-A990 LG Stylo 4
  X > < X > < X > < X > < X

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

 
Phone Samsung SGH-X640 ZTE Blade Z Max Motorola Bali Samsung SCH-A990 LG Stylo 4

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