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Phone Samsung SGH-X640 LG Stylo 4 BlackBerry Classic (CDMA) Ericsson T66
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 6.2" diag.
18 : 9
3.5" diag.
1 : 1
?
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
1080 x 2160 pixels
(~390 ppi)
LCD (TFT/TFD)
720 x 720 pixels
(~291 ppi)
LCD (TFT/TFD)
?
Display Refresh ? 60 Hz ? ?
Battery 800 mAh 3,300 mAh 2,515 mAh ?
Processor ? 1.8 GHz Qualcomm Snapdragon 450 1.5 GHz Qualcomm Snapdragon S4 Plus MSM8960 ?
RAM ? 2 GB * 2 GB ?
Storage ? raw hardware 32 GB * 16 GB ? raw hardware
Main Camera Yes 13 megapixel 8 megapixel -
Wide Camera - - - -
Tele Camera - - - -
Video Capture - 1080p HD 1080p HD -
Front Camera - 5 megapixel 2 megapixel -
Weight 3 oz
(85g)
6.07 oz
(172g)
6.28 oz
(178g)
2.08 oz
(59g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
6.31" x 3.06" x 0.33"
(160 x 78 x 8.4 mm)
5.16" x 2.85" x 0.4"
(131 x 72 x 10.2 mm)
3.62" x 1.61" x 0.69"
(92 x 41 x 17.5 mm)
Form Factor Clamshell Slab Slab Slab
Platform / OS (proprietary) Android BlackBerry 10 (proprietary)
Network Bands

GSM: 900, 1800, 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

*

4G LTE: 3, 4, 13

WCDMA: 1, 2, 5, 8

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

Data Technology GPRS LTE (Cat 6) LTE (Cat 3) -
Features 
Fingerprint Reader - Yes
stand-alone
- -
Flashlight - Yes - -
GPS / Location - n/a n/a -
Accessibility
Adjustable Text Size - n/a n/a -
Hearing Aid Compatible - Yes
M4, T3 (mostly tele-coil compatible)
Yes
M3, T4 (very tele-coil compatible)
-
Multiple Languages Yes n/a n/a Yes
TTY/TDD (Digital) - Yes Yes -
Alerts
Ringer Profiles - - Yes Yes
Connectivity
Bluetooth - Yes Yes -
Mobile Hotspot - n/a n/a -
NFC - Yes * Yes -
USB - Yes
USB Type C
Yes
Micro-USB
-
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 a,b,g,n)
-
Contacts
Picture ID Yes n/a n/a -
Ringer ID Yes n/a n/a -
Voice Dialing - n/a n/a -
Customization
Custom Graphics Yes n/a n/a Yes
Custom Ringtones Yes n/a n/a Yes
Real-Music Ringers - n/a n/a -
Data & Network
Data Tethering - n/a n/a -
WAP / Web Browser Yes n/a n/a Yes
Input
Predictive Text Entry Yes n/a n/a Yes
Side Keys Yes Yes Yes Yes
Stylus - Yes - -
Text Keyboard, Hardware - - Yes -
Touch Screen - Yes
Capacitive
Yes
Capacitive
-
Memory
Memory Card Slot - Yes Yes -
Messaging
Email Client - n/a n/a -
EMS / Picture Messaging Yes n/a n/a Yes
Instant Messaging - n/a n/a -
MMS Yes n/a n/a -
Text Messaging Templates Yes n/a n/a Yes
Music
FM Radio - Yes Yes -
Headphone Jack (3.5mm) - Yes Yes -
Music Player - n/a n/a -
Photo & Video
DLNA - Yes Yes -
Miracast - - Yes -
TV Output - - Yes -
Productivity
Alarm Yes n/a n/a Yes
Calculator Yes n/a n/a Yes
Calendar Yes n/a n/a Yes
To-Do List Yes n/a n/a Yes
Voice Memo Yes n/a n/a -
Software
Games Yes n/a n/a Yes
Java (J2ME) Yes n/a n/a -
Voice
HD Voice - Yes - -
Headset Jack (2.5 mm) Yes n/a n/a -
Speaker Phone Yes Yes Yes -
  * Some versions only
  Samsung SGH-X640 LG Stylo 4 BlackBerry Classic (CDMA) Ericsson T66
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Phone Samsung SGH-X640 LG Stylo 4 BlackBerry Classic (CDMA) Ericsson T66

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