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Phone Samsung Galaxy S6 (GSM) LG A340 Samsung Galaxy S21 HTC One (M7 / GSM)
Current U.S. Carriers (none) (none) Verizon (none)
Global Availability Released Released Released Released
Specifications 
Display Size 5.1" diag.
16 : 9
2.4" diag.
4 : 3
6.2" diag.
20 : 9
4.7" diag.
16 : 9
Display Resolution & Type 1440 x 2560 pixels
(~576 ppi)
AMOLED
240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
1080 x 2400 pixels
(~424 ppi)
AMOLED
1080 x 1920 pixels
(~469 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz ? 120 Hz 60 Hz
Battery 2,550 mAh 900 mAh 4,000 mAh 2,300 mAh
Processor 2.1 GHz Samsung Exynos 7420 Qualcomm QSC6270 2.8 GHz Qualcomm Snapdragon 888 1.7 GHz Qualcomm Snapdragon 600
RAM 3 GB ? 8 GB 2 GB
Storage 32 GB * ? raw hardware 128 GB * 32 GB *
Main Camera 16 megapixel 1 megapixel 12 megapixel 4 megapixel
Wide Camera - - 12 megapixel -
Tele Camera - - 64 megapixel -
Video Capture 4K UHD QVGA (320 x 240) 8K 1080p HD
Front Camera 5 megapixel - 10 megapixel 2 megapixel
Weight 4.87 oz
(138g)
3.56 oz
(101g)
6.03 oz
(171g)
5.04 oz
(143g)
Dimensions 5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
4.02" x 2.05" x 0.67"
(102 x 52 x 17 mm)
5.97" x 2.8" x 0.31"
(152 x 71 x 7.9 mm)
5.41" x 2.69" x 0.37"
(137 x 68 x 9.3 mm)
Form Factor Slab Clamshell Slab Slab
Platform / OS Android (proprietary) Android Android
Network Bands

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

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

WCDMA: 2, 5

GSM: 850, 900, 1800, 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

4G LTE: 2, 4, 5, 17

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

Data Technology LTE (Cat 6) HSDPA 3.6 NR (5G) LTE (Cat 3)
Features 
Barometer - - Yes -
Fingerprint Reader Yes - Yes
in-display (ultrasonic)
-
Flashlight Yes - Yes Yes
GPS / Location n/a Yes n/a n/a
VR-ready Yes - - -
Water-Resistant - - Yes
IPX8 (SCUBA)
-
Accessibility
Adjustable Text Size n/a Yes n/a n/a
Hearing Aid Compatible Yes Yes Yes Yes
Multiple Languages n/a Yes n/a n/a
TTY/TDD (Digital) Yes Yes Yes Yes
Alerts
Extra Display - Yes - -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) Yes - - Yes
MirrorLink Yes - - -
Mobile Hotspot n/a - n/a n/a
NFC Yes - Yes Yes
USB Yes
Micro-USB
Yes
Micro-USB
Yes
USB Type C
Yes
Micro-USB
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 n/a Yes n/a n/a
Ringer ID n/a Yes n/a n/a
Voice Dialing n/a Yes n/a n/a
Customization
Custom Graphics n/a Yes n/a n/a
Custom Ringtones n/a Yes n/a n/a
Real-Music Ringers n/a Yes n/a n/a
Data & Network
Data Tethering n/a Yes n/a n/a
WAP / Web Browser n/a Yes n/a n/a
Input
Predictive Text Entry n/a Yes n/a n/a
Side Keys Yes Yes Yes Yes
Touch Screen Yes - Yes Yes
Memory
Memory Card Slot - Yes - -
Messaging
Email Client n/a - n/a n/a
Instant Messaging n/a - n/a n/a
MMS n/a Yes n/a n/a
Text Messaging Templates n/a Yes n/a n/a
Music
FM Radio - - - Yes
Headphone Jack (3.5mm) Yes - - Yes
Music Player n/a Yes n/a n/a
Stereo Speakers - - Yes Yes
Photo & Video
DLNA Yes - - Yes
Miracast Yes - - Yes
TV Output Yes - Yes Yes
Power
Fast Charging Yes - Yes -
Wireless Charging Yes - Yes -
Productivity
Alarm n/a Yes n/a n/a
Calculator n/a Yes n/a n/a
Calendar n/a Yes n/a n/a
To-Do List n/a Yes n/a n/a
Voice Memo n/a Yes n/a n/a
Software
Games n/a Yes n/a n/a
Java (J2ME) n/a Yes n/a n/a
Voice
HD Voice Yes - Yes Yes
Speaker Phone Yes Yes Yes Yes
  Samsung Galaxy S6 (GSM) LG A340 Samsung Galaxy S21 HTC One (M7 / GSM)
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung Galaxy S6 (GSM) LG A340 Samsung Galaxy S21 HTC One (M7 / GSM)

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