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Phone LG AX-390 / UX-390 Kyocera 3225 Samsung SPH-A460 Samsung Galaxy S21 Samsung Galaxy Z Flip
Current U.S. Carriers (none) (none) (none) Verizon (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? ? ? 6.2" diag.
20 : 9
6.7" diag.
22 : 9
Display Resolution & Type 128 x 128 pixels
LCD (STN)
?
LCD (Grayscale)
128 x 128 pixels
LCD (Grayscale)
1080 x 2400 pixels
(~424 ppi)
AMOLED
1080 x 2636 pixels
(~425 ppi)
AMOLED
Display Refresh ? ? ? 120 Hz 60 Hz
Battery 1,000 mAh ? ? 4,000 mAh 3,300 mAh
Processor ? ? ? 2.8 GHz Qualcomm Snapdragon 888 3 GHz Qualcomm Snapdragon 855+
RAM ? ? ? 8 GB 8 GB
Storage ? raw hardware ? raw hardware ? raw hardware 128 GB * 256 GB
Main Camera - - - 12 megapixel 12 megapixel
Wide Camera - - - 12 megapixel 12 megapixel
Tele Camera - - - 64 megapixel -
Video Capture - - - 8K 4K UHD
Front Camera - - - 10 megapixel 10 megapixel
Weight 3.74 oz
(106g)
4.23 oz
(120g)
3.4 oz
(96g)
6.03 oz
(171g)
6.46 oz
(183g)
Dimensions 3.82" x 1.98" x 0.94"
(97 x 50 x 23.9 mm)
3.4" x 1.97" x 1.02"
(86 x 50 x 25.9 mm)
3.4" x 2.1" x 0.9"
(86 x 53 x 22.9 mm)
5.97" x 2.8" x 0.31"
(152 x 71 x 7.9 mm)
3.44" x 2.9" x 0.68"
(87 x 74 x 17.3 mm)
Form Factor Clamshell Slab Clamshell Slab Foldable
Platform / OS (proprietary) (proprietary) (proprietary) Android Android
Network Bands

CDMA: 850, 1900

AMPS: 850

CDMA: 850, 1900

AMPS: 850

CDMA: 850, 1900

AMPS: 850

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

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 66, 71

WCDMA: 2, 3, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

*

Data Technology 1xRTT 1xRTT - NR (5G) LTE (Cat 16)
Features 
Barometer - - - Yes Yes
Fingerprint Reader - - - Yes
in-display (ultrasonic)
Yes
stand-alone
Flashlight - - - Yes Yes
GPS / Location Yes Yes Yes n/a n/a
Water-Resistant - - - Yes
IPX8 (SCUBA)
-
Accessibility
Hearing Aid Compatible Yes
M3 (mostly compatible)
- - Yes
M3, T3 (mostly tele-coil compatible)
Yes
M4, T3 (mostly tele-coil compatible)
Multiple Languages Yes Yes Yes n/a n/a
TTY/TDD (Digital) Yes Yes - Yes Yes
Alerts
Extra Display Yes - Yes - Yes
Connectivity
Bluetooth - - - Yes Yes
MirrorLink - - - - Yes
NFC - - - Yes Yes
USB - - - Yes
USB Type C
Yes
USB Type C
Wi-Fi - - - Yes
6 (802.11 a,ac,ax,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID Yes - - n/a n/a
Ringer ID - - Yes n/a n/a
Voice Dialing Yes Yes Yes n/a n/a
Customization
Custom Graphics Yes Yes Yes n/a n/a
Custom Ringtones Yes Yes Yes n/a n/a
Real-Music Ringers Yes - - n/a n/a
Data & Network
Data Tethering - Yes Yes n/a n/a
WAP / Web Browser Yes Yes Yes n/a n/a
Input
Predictive Text Entry Yes Yes Yes n/a n/a
Side Keys Yes - Yes Yes Yes
Touch Screen - - - Yes
Capacitive
Yes
Capacitive
Messaging
EMS / Picture Messaging - Yes - n/a n/a
MMS Yes - - n/a n/a
Music
Stereo Speakers - - - Yes -
Photo & Video
TV Output - - - Yes Yes
Power
Fast Charging - - - Yes Yes
Wireless Charging - - - Yes Yes
Productivity
Alarm Yes Yes Yes n/a n/a
Calculator Yes Yes Yes n/a n/a
Calendar Yes Yes Yes n/a n/a
To-Do List - - Yes n/a n/a
Voice Memo Yes - - n/a n/a
Software
BREW Yes Yes - n/a n/a
Games Yes Yes Yes n/a n/a
Voice
HD Voice - - - Yes Yes
Headset Jack (2.5 mm) Yes Yes Yes n/a n/a
Push-To-Talk Yes - - - -
Speaker Phone Yes Yes - Yes Yes
  LG AX-390 / UX-390 Kyocera 3225 Samsung SPH-A460 Samsung Galaxy S21 Samsung Galaxy Z Flip
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone LG AX-390 / UX-390 Kyocera 3225 Samsung SPH-A460 Samsung Galaxy S21 Samsung Galaxy Z Flip

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