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Phone Samsung SGH-X660 NEC 535M Motorola Moto z4 Samsung SGH-A157 Ericsson T66
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Not yet released Released Released Released
Specifications 
Display Size ? ? 6.4" diag.
19.5 : 9
1.8" diag.
4 : 3
?
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
1080 x 2340 pixels
(~403 ppi)
AMOLED
128 x 160 pixels
(~116 ppi)
LCD (TFT/TFD)
?
Display Refresh ? ? 60 Hz ? ?
Battery 800 mAh 720 mAh 3,600 mAh 800 mAh ?
Processor ? ? 2 GHz Qualcomm Snapdragon 675 ? ?
RAM ? ? 4 GB ? ?
Storage ? raw hardware ? raw hardware 128 GB 256 MB ? raw hardware
Main Camera Yes 1 megapixel 48 megapixel - -
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture ? QCIF (176 x 144) 4K UHD - -
Front Camera - - 25 megapixel - -
Weight 2.75 oz
(78g)
4.16 oz
(118g)
6 oz
(170g)
2.99 oz
(85g)
2.08 oz
(59g)
Dimensions 3.52" x 1.77" x 0.85"
(89 x 45 x 21.6 mm)
3.98" x 1.93" x 1.02"
(101 x 49 x 25.9 mm)
6.22" x 2.96" x 0.29"
(158 x 75 x 7.4 mm)
3.83" x 1.84" x 0.65"
(97 x 47 x 16.5 mm)
3.62" x 1.61" x 0.69"
(92 x 41 x 17.5 mm)
Form Factor Clamshell Clamshell Slab Clamshell Slab
Platform / OS (proprietary) (proprietary) Android (proprietary) (proprietary)
Network Bands

GSM: 900, 1800, 1900

GSM: 850, 1800, 1900

4G LTE: 2, 3, 4, 5, 7, 12, 13, 20, 25, 26, 28, 29, 30, 38, 41, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

*

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

Data Technology GPRS GPRS LTE (Cat 12) ? -
Features 
Fingerprint Reader - - Yes - -
Flashlight - Yes Yes - -
GPS / Location - - n/a Yes -
Water-Resistant - - Yes - -
Accessibility
Adjustable Text Size - - n/a Yes -
Hearing Aid Compatible - - Yes Yes -
Multiple Languages Yes Yes n/a Yes Yes
TTY/TDD (Digital) - Yes Yes Yes -
Alerts
Extra Display Yes Yes - - -
Ringer Profiles - Yes - Yes Yes
Connectivity
Bluetooth -
-
Yes
Classic Audio
-
-
Infrared (IR) Yes Yes - - -
NFC - - Yes - -
USB - Yes Yes
USB Type C
Yes
Micro-USB
-
Wi-Fi - - Yes
5 (802.11 a,ac,b,g,n)
- -
Contacts
Picture ID Yes Yes n/a Yes -
Ringer ID Yes Yes n/a Yes -
Voice Dialing - Yes n/a - -
Customization
Custom Graphics Yes Yes n/a Yes Yes
Custom Ringtones Yes Yes n/a Yes Yes
Real-Music Ringers Yes - n/a Yes -
Data & Network
Data Tethering - Yes n/a - -
WAP / Web Browser Yes Yes n/a Yes Yes
Input
Predictive Text Entry Yes Yes n/a Yes Yes
Side Keys Yes Yes Yes - Yes
Touch Screen - - Yes - -
Memory
Memory Card Slot - - Yes - -
Messaging
Email Client - Yes n/a - -
EMS / Picture Messaging Yes - n/a - Yes
MMS Yes Yes n/a Yes -
Text Messaging Templates Yes - n/a Yes Yes
Music
FM Radio - - Yes - -
Headphone Jack (3.5mm) - - Yes - -
Power
Fast Charging - - Yes - -
Productivity
Alarm Yes Yes n/a Yes Yes
Calculator Yes Yes n/a Yes Yes
Calendar Yes Yes n/a Yes Yes
To-Do List Yes Yes n/a Yes Yes
Voice Memo Yes Yes n/a Yes -
Software
Games Yes Yes n/a - Yes
Java (J2ME) Yes Yes n/a - -
Voice
HD Voice - - Yes - -
Speaker Phone Yes - Yes Yes -
  Samsung SGH-X660 NEC 535M Motorola Moto z4 Samsung SGH-A157 Ericsson T66
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Phone Samsung SGH-X660 NEC 535M Motorola Moto z4 Samsung SGH-A157 Ericsson T66

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