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Phone Samsung Galaxy S6 (CDMA) Samsung Galaxy S6 (GSM) Samsung DoubleTime HTC Wildfire S (CDMA) Samsung Galaxy S21
Current U.S. Carriers (none) (none) (none) (none) Verizon
Global Availability Released Released Released Released Released
Specifications 
Display Size 5.1" diag.
16 : 9
5.1" diag.
16 : 9
3.2" diag.
5 : 3
3.2" diag.
5 : 3
6.2" diag.
20 : 9
Display Resolution & Type 1440 x 2560 pixels
(~576 ppi)
AMOLED
1440 x 2560 pixels
(~576 ppi)
AMOLED
320 x 480 pixels
(~180 ppi)
LCD (TFT/TFD)
320 x 480 pixels
(~180 ppi)
LCD (TFT/TFD)
1080 x 2400 pixels
(~424 ppi)
AMOLED
Display Refresh 60 Hz 60 Hz 60 Hz 60 Hz 120 Hz
Battery 2,550 mAh 2,550 mAh 1,200 mAh 1,230 mAh 4,000 mAh
Processor 2.1 GHz Samsung Exynos 2.1 GHz Samsung Exynos 7420 600 MHz Qualcomm 600 MHz Qualcomm S4 Plus MSM8227 2.8 GHz Qualcomm Snapdragon 888
RAM 3 GB 3 GB ? ? 8 GB
Storage 32 GB * 32 GB * ? raw hardware 512 MB 128 GB *
Main Camera 16 megapixel 16 megapixel 3 megapixel 5 megapixel 12 megapixel
Wide Camera - - - - 12 megapixel
Tele Camera - - - - 64 megapixel
Video Capture 4K UHD 4K UHD QVGA (320 x 240) WVGA / 480p 8K
Front Camera 5 megapixel 5 megapixel - - 10 megapixel
Weight 4.87 oz
(138g)
4.87 oz
(138g)
5.22 oz
(148g)
3.7 oz
(105g)
6.03 oz
(171g)
Dimensions 5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
4.45" x 2.44" x 0.59"
(113 x 62 x 15 mm)
3.99" x 2.34" x 0.49"
(101 x 59 x 12.4 mm)
5.97" x 2.8" x 0.31"
(152 x 71 x 7.9 mm)
Platform / OS Android Android Android Android Android
Network Bands

4G LTE: 2, 4, 5, 13

WCDMA: 1, 2, 5, 8

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

*

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

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

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

Data Technology LTE (Cat 4) LTE (Cat 6) HSPA 7.2 EVDO rA NR (5G)
Features 
Barometer - - - - Yes
Fingerprint Reader Yes Yes - - Yes
in-display (ultrasonic)
Flashlight Yes Yes - - Yes
VR-ready Yes Yes - - -
Water-Resistant - - - - Yes
IPX8 (SCUBA)
Accessibility
Hearing Aid Compatible Yes Yes Yes Yes Yes
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) Yes Yes - - -
MirrorLink Yes Yes - - -
NFC Yes Yes - - Yes
USB Yes
Micro-USB
Yes
Micro-USB
Yes
Micro-USB
Yes
Micro-USB
Yes
USB Type C
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 b,g,n)
Yes
4 (802.11 b,g,n)
Yes
6 (802.11 a,ac,ax,b,g,n)
Input
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - Yes - -
Touch Screen Yes Yes Yes Yes Yes
Memory
Memory Card Slot - - Yes Yes -
Music
FM Radio - - - Yes * -
Headphone Jack (3.5mm) Yes Yes Yes Yes -
Stereo Speakers - - - - Yes
Photo & Video
DLNA Yes Yes - - -
Miracast Yes Yes - - -
TV Output Yes Yes - - Yes
Power
Fast Charging - Yes - - Yes
Wireless Charging Yes Yes - - Yes
Voice
HD Voice Yes Yes - - Yes
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Samsung Galaxy S6 (CDMA) Samsung Galaxy S6 (GSM) Samsung DoubleTime HTC Wildfire S (CDMA) Samsung Galaxy S21
  X > < X > < X > < X > < X

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

 
Phone Samsung Galaxy S6 (CDMA) Samsung Galaxy S6 (GSM) Samsung DoubleTime HTC Wildfire S (CDMA) Samsung Galaxy S21

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