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Phone Samsung SCH-U620 Samsung Galaxy S6 (GSM) Kyocera 3245 Apple iPhone 12 mini Amazon Fire
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 5.1" diag.
16 : 9
? 5.4" diag.
19.5 : 9
4.7" diag.
16 : 9
Display Resolution & Type 240 x 320 pixels
LCD (TFT/TFD)
1440 x 2560 pixels
(~576 ppi)
AMOLED
?
LCD (Grayscale)
1080 x 2340 pixels
(~477 ppi)
AMOLED
720 x 1280 pixels
(~312 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? 60 Hz ?
Battery 1,000 mAh 2,550 mAh ? 2,227 mAh 2,400 mAh
Processor ? 2.1 GHz Samsung Exynos 7420 ? Apple A14 Bionic 2.2 GHz Qualcomm Snapdragon 800
RAM ? 3 GB ? 4 GB 2 GB
Storage ? raw hardware 32 GB * ? raw hardware 64 GB * 32 GB *
Main Camera 1 megapixel 16 megapixel - 12 megapixel 13 megapixel
Wide Camera - - - 12 megapixel -
Tele Camera - - - - -
Video Capture QVGA (320 x 240) 4K UHD - 4K UHD 1080p HD
Front Camera - 5 megapixel - 12 megapixel 2 megapixel
Weight 3.74 oz
(106g)
4.87 oz
(138g)
4.23 oz
(120g)
4.76 oz
(135g)
5.64 oz
(160g)
Dimensions 3.78" x 1.85" x 0.87"
(96 x 47 x 22.1 mm)
5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
4.61" x 1.97" x 1.02"
(117 x 50 x 25.9 mm)
5.18" x 2.53" x 0.29"
(132 x 64 x 7.4 mm)
5.5" x 2.6" x 0.35"
(140 x 66 x 8.9 mm)
Form Factor Slide Slab Slab Slab Slab
Platform / OS (proprietary) Android (proprietary) iOS (proprietary)
Network Bands

CDMA: 850, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 29, 30

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

CDMA: 850, 1900

AMPS: 850

5G: 1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 40, 41, 66, 71, 77-C, 78, 260, 261

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 32, 34, 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, 17

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

Data Technology EVDO r0 LTE (Cat 6) 1xRTT NR (5G) LTE (Cat 4)
Features 
Barometer - - - Yes -
Fingerprint Reader - Yes - - -
Flashlight - Yes - Yes Yes
GPS / Location Yes n/a Yes n/a Yes
VR-ready - Yes - - -
Water-Resistant - - - Yes
IPX8 (SCUBA)
-
Accessibility
Hearing Aid Compatible Yes Yes - Yes Yes
Multiple Languages Yes n/a Yes n/a Yes
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
-
Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) - Yes - - -
MirrorLink - Yes - - -
Mobile Hotspot - n/a - n/a Yes
NFC - Yes - Yes Yes
USB Yes Yes
Micro-USB
- Yes Yes
Micro-USB
UWB - - - Yes -
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
- 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 Yes
Ringer ID Yes n/a - n/a Yes
Voice Dialing Yes n/a Yes n/a Yes
Customization
Custom Graphics Yes n/a Yes n/a -
Custom Ringtones Yes n/a Yes n/a Yes
Data & Network
Data Tethering - n/a Yes n/a Yes
Dual-SIM - - - Yes -
WAP / Web Browser Yes n/a Yes n/a Yes
Input
Predictive Text Entry Yes n/a Yes n/a Yes
Side Keys Yes Yes - Yes Yes
Touch Screen - Yes - Yes Yes
Memory
Memory Card Slot Yes - - - -
Messaging
Email Client - n/a - n/a Yes
EMS / Picture Messaging - n/a Yes n/a -
Instant Messaging Yes n/a - n/a -
MMS Yes n/a - n/a Yes
Text Messaging Templates Yes n/a - n/a Yes
Music
Headphone Jack (3.5mm) - Yes - - Yes
Music Player Yes n/a - n/a Yes
Stereo Speakers Yes - - Yes Yes
Photo & Video
DLNA - Yes - - -
Miracast - Yes - - Yes
TV Output - Yes - Yes Yes
Power
Fast Charging - Yes - Yes -
Wireless Charging - Yes - Yes -
Productivity
Alarm Yes n/a Yes n/a Yes
Calculator Yes n/a Yes n/a Yes
Calendar Yes n/a Yes n/a Yes
Voice Memo Yes n/a Yes n/a Yes
Software
BREW Yes n/a Yes * n/a -
Games Yes n/a Yes n/a Yes
Voice
HD Voice - Yes - Yes Yes
Headset Jack (2.5 mm) Yes n/a Yes n/a -
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Samsung SCH-U620 Samsung Galaxy S6 (GSM) Kyocera 3245 Apple iPhone 12 mini Amazon Fire
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SCH-U620 Samsung Galaxy S6 (GSM) Kyocera 3245 Apple iPhone 12 mini Amazon Fire

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