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Phone Samsung Galaxy S21 Kyocera DuraForce LG G Flex (U.S. GSM) HTC Shadow Samsung Galaxy S 4 (GSM)
Current U.S. Carriers Verizon (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 6.2" diag.
20 : 9
4.5" diag.
16 : 9
6" diag.
16 : 9
2.6" diag.
4 : 3
5" diag.
16 : 9
Display Resolution & Type 1080 x 2400 pixels
(~424 ppi)
AMOLED
720 x 1280 pixels
(~326 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~245 ppi)
AMOLED
240 x 320 pixels
(~154 ppi)
LCD (TFT/TFD)
1080 x 1920 pixels
(~441 ppi)
AMOLED
Display Refresh 120 Hz 60 Hz 60 Hz ? 60 Hz
Battery 4,000 mAh 3,100 mAh 3,500 mAh 920 mAh 2,600 mAh
Processor 2.8 GHz Qualcomm Snapdragon 888 1.4 GHz Qualcomm Snapdragon 400 (MSM8928) 2.3 GHz Qualcomm Snapdragon 800 200 MHz OMAP 850 1.9 GHz Qualcomm Snapdragon 600 8064T
RAM 8 GB 2 GB 2 GB ? 2 GB
Storage 128 GB * 16 GB 32 GB ? raw hardware 16 GB *
Main Camera 12 megapixel 8 megapixel 13 megapixel 2 megapixel 13 megapixel
Wide Camera 12 megapixel - - - -
Tele Camera 64 megapixel - - - -
Video Capture 8K 1080p HD 4K UHD ? 1080p HD
Front Camera 10 megapixel 2 megapixel 2 megapixel - 2 megapixel
Weight 6.03 oz
(171g)
7.06 oz
(200g)
6.24 oz
(177g)
5.29 oz
(150g)
4.59 oz
(130g)
Dimensions 5.97" x 2.8" x 0.31"
(152 x 71 x 7.9 mm)
5.39" x 2.78" x 0.55"
(137 x 71 x 14 mm)
6.32" x 3.21" x 0.31"
(160 x 82 x 8 mm)
4.06" x 2.09" x 0.59"
(103 x 53 x 15 mm)
5.38" x 2.75" x 0.31"
(137 x 70 x 7.9 mm)
Platform / OS Android Android Android Windows Mobile Standard Android
Network Bands

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, 4, 5, 7, 17

WCDMA: 1, 2, 5, 8

GSM: 850, 900, 1800, 1900

*

4G LTE: 2, 4, 5, 7, 17

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

GSM: 850, 900, 1800, 1900

4G LTE: 2, 4, 5, 17

WCDMA: 1, 2, 4, 5

GSM: 850, 900, 1800, 1900

*

Data Technology NR (5G) LTE (Cat 3) LTE (Cat 4) EDGE LTE (Cat 3)
Features 
Barometer Yes - - - -
Fingerprint Reader Yes
in-display (ultrasonic)
- - - -
Flashlight Yes Yes Yes - Yes
Ruggedized - Yes - - -
Water-Resistant Yes
IPX8 (SCUBA)
Yes
IPX8 (SCUBA)
- - -
Accessibility
Hearing Aid Compatible Yes
M3, T3 (mostly tele-coil compatible)
Yes
M4, T3 (mostly tele-coil compatible)
Yes
M3, T3 (mostly tele-coil compatible)
- Yes
M3 (mostly compatible)
TTY/TDD (Digital) Yes Yes Yes - Yes
Alerts
Ringer Profiles - - - Yes -
Connectivity
Bluetooth Yes Yes Yes Yes Yes
Infrared (IR) - - Yes - Yes
NFC Yes Yes Yes - Yes
USB Yes
USB Type C
Yes
Micro-USB
Yes
Micro-USB
Yes
Mini-USB
Yes
Wi-Fi Yes
6 (802.11 a,ac,ax,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Yes
802.11 b,g
Yes
5 (802.11 a,ac,b,g,n)
Input
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - - Yes -
Touch Screen Yes
Capacitive
Yes
Capacitive
Yes
Capacitive
- Yes
Capacitive
Memory
Memory Card Slot - Yes - Yes Yes
Music
Headphone Jack (3.5mm) - Yes Yes - Yes
Stereo Speakers Yes Yes - - -
Photo & Video
DLNA - Yes Yes - Yes
Miracast - Yes Yes - Yes
TV Output Yes - Yes - Yes
Power
Fast Charging Yes - - - -
Wireless Charging Yes Yes - - -
Voice
HD Voice Yes - Yes * - -
Push-To-Talk - Yes * - - -
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Samsung Galaxy S21 Kyocera DuraForce LG G Flex (U.S. GSM) HTC Shadow Samsung Galaxy S 4 (GSM)
  X > < X > < X > < X > < X

NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung Galaxy S21 Kyocera DuraForce LG G Flex (U.S. GSM) HTC Shadow Samsung Galaxy S 4 (GSM)

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