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Phone Samsung SGH-X660 Samsung Galaxy S21 FE 5G
Current U.S. Carriers (none) Verizon
Global Availability Released Released
Specifications 
Display Size ? 6.4" diag.
19.5 : 9
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
1080 x 2340 pixels
(~403 ppi)
AMOLED
Display Refresh ? 120 Hz
Battery 800 mAh 4,500 mAh
Processor ? Qualcomm Snapdragon 888
RAM ? 6 GB *
Storage ? raw hardware 128 GB *
Main Camera Yes 12 megapixel
Wide Camera - 12 megapixel
Tele Camera - 8 megapixel
Video Capture ? 4K UHD
Front Camera - 32 megapixel
Weight 2.75 oz
(78g)
6.24 oz
(177g)
Dimensions 3.52" x 1.77" x 0.85"
(89 x 45 x 21.6 mm)
6.13" x 2.93" x 0.31"
(156 x 75 x 7.9 mm)
Form Factor Clamshell Slab
Platform / OS (proprietary) Android
Network Bands

GSM: 900, 1800, 1900

5G: 2, 5, 12, 25, 30, 41, 66, 71, 77-C, 260, 261

4G LTE: 2, 4, 5, 7, 12, 13, 14, 25, 26, 29, 30, 38, 41, 48, 66, 71

WCDMA: 2, 4, 5

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

Data Technology GPRS NR (5G)
Features 
Barometer - Yes
Fingerprint Reader - Yes
in-display (optical)
Flashlight - Yes
Water-Resistant - Yes
IPX8 (SCUBA)
Accessibility
Hearing Aid Compatible - Yes
M3, T3 (mostly tele-coil compatible)
Multiple Languages Yes n/a
TTY/TDD (Digital) - Yes
Alerts
Extra Display Yes -
Connectivity
Bluetooth - Yes
Infrared (IR) Yes -
NFC - Yes
USB - Yes
USB Type C
Wi-Fi - Yes
6 (802.11 a,ac,ax,b,g,n)
Contacts
Picture ID Yes n/a
Ringer ID Yes n/a
Customization
Custom Graphics Yes n/a
Custom Ringtones Yes n/a
Real-Music Ringers Yes n/a
Data & Network
WAP / Web Browser Yes n/a
Input
Predictive Text Entry Yes n/a
Side Keys Yes Yes
Touch Screen - Yes
Capacitive
Messaging
EMS / Picture Messaging Yes n/a
MMS Yes n/a
Text Messaging Templates Yes n/a
Music
Stereo Speakers - Yes
Photo & Video
TV Output - Yes
Power
Fast Charging - Yes
Wireless Charging - Yes
Productivity
Alarm Yes n/a
Calculator Yes n/a
Calendar Yes n/a
To-Do List Yes n/a
Voice Memo Yes n/a
Software
Games Yes n/a
Java (J2ME) Yes n/a
Voice
HD Voice - Yes
Speaker Phone Yes Yes
  Samsung SGH-X660 Samsung Galaxy S21 FE 5G
  X > < X

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Phone Samsung SGH-X660 Samsung Galaxy S21 FE 5G

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