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Phone Samsung Galaxy Z Flip5 Samsung Galaxy Z Flip6 Samsung Galaxy S21 LG K4 / Optimus Zone 3 / Rebel ZTE Imperial II
Current U.S. Carriers AT&T
Verizon
AT&T
Boost
Consumer Cellular
Spectrum Mobile
T-Mobile
US Cellular
Verizon
Xfinity Mobile
Verizon (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 6.7" diag.
22 : 9
6.7" diag.
22 : 9
6.2" diag.
20 : 9
4.5" diag.
16 : 9
5" diag.
16 : 9
Display Resolution & Type 1080 x 2640 pixels
(~426 ppi)
AMOLED
1080 x 2640 pixels
(~426 ppi)
AMOLED
1080 x 2400 pixels
(~424 ppi)
AMOLED
480 x 854 pixels
(~218 ppi)
LCD (TFT/TFD)
540 x 960 pixels
(~220 ppi)
LCD (TFT/TFD)
Display Refresh 120 Hz 120 Hz 120 Hz 60 Hz 60 Hz
Battery 3,700 mAh 4,000 mAh 4,000 mAh 1,940 mAh 2,300 mAh
Processor Snapdragon 8 Gen 2 for Galaxy 3.4 GHz Snapdragon 8 Gen 3 for Galaxy 2.8 GHz Qualcomm Snapdragon 888 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) 1.2 GHz Qualcomm Snapdragon 400 (MSM8926)
RAM 8 GB 12 GB 8 GB 1.5 GB 1 GB
Storage 256 GB * 256 GB * 128 GB * 16 GB * 8 GB
Main Camera 12 megapixel 50 megapixel 12 megapixel 5 megapixel 5 megapixel
Wide Camera 12 megapixel 12 megapixel 12 megapixel - -
Tele Camera - - 64 megapixel - -
Video Capture 4K UHD 4K UHD 8K 720p HD 720p HD
Front Camera 10 megapixel 10 megapixel 10 megapixel 2 megapixel 1 megapixel
Weight 6.6 oz
(187g)
6.6 oz
(187g)
6.03 oz
(171g)
3.99 oz
(113g)
5.07 oz
(144g)
Dimensions 3.35" x 2.83" x 0.59"
(85 x 72 x 15 mm)
3.35" x 2.83" x 0.59"
(85 x 72 x 14.9 mm)
5.97" x 2.8" x 0.31"
(152 x 71 x 7.9 mm)
5.19" x 2.62" x 0.35"
(132 x 67 x 8.9 mm)
5.6" x 2.8" x 0.4"
(142 x 71 x 10.2 mm)
Platform / OS Android Android Android Android Android
Network Bands

5G: 2, 5, 7, 12, 25, 26, 30, 41, 48, 66, 71, 77-A, 77-C, 78, 257, 258, 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, 48, 66, 71

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

5G: 1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 30, 38, 41, 48, 66, 70, 71, 77-A, 77-C, 78, 257, 258, 260, 261

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

WCDMA: 1, 2, 4, 5, 8

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, 13

WCDMA: 1, 2, 5

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

*

4G LTE: 2, 4, 5, 12, 17

CDMA: 850, 1900

Data Technology NR (5G) NR (5G) NR (5G) LTE (Cat 3) LTE (Cat 3)
Features 
Barometer Yes Yes Yes - -
Fingerprint Reader Yes
stand-alone
Yes
stand-alone
Yes
in-display (ultrasonic)
- -
Flashlight Yes Yes Yes Yes -
Water-Resistant Yes
IPX8 (SCUBA)
Yes
IPX8 (SCUBA)
Yes
IPX8 (SCUBA)
- -
Accessibility
Hearing Aid Compatible Yes Yes Yes Yes Yes
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Alerts
Extra Display Yes Yes - - -
Connectivity
Bluetooth Yes
Auracast, LE Audio, Classic Audio
Yes
Auracast, LE Audio, Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
NFC Yes Yes Yes - -
USB Yes
USB Type C
Yes
USB Type C
Yes
USB Type C
Yes
Micro-USB
Yes
Micro-USB
Wi-Fi Yes
6E (802.11 a,ac,ax,b,g,n)
Yes
6E (802.11 a,ac,ax,b,g,n)
Yes
6 (802.11 a,ac,ax,b,g,n)
Yes
4 (802.11 b,g,n)
Yes
4 (802.11 b,g,n)
Data & Network
Dual-SIM Yes Yes - - -
Input
Side Keys Yes Yes Yes Yes Yes
Touch Screen Yes Yes Yes Yes Yes
Memory
Memory Card Slot - - - Yes Yes
Music
Headphone Jack (3.5mm) - - - Yes Yes
Stereo Speakers - - Yes - -
Photo & Video
Miracast - - - Yes -
TV Output - - Yes - -
Power
Fast Charging Yes Yes Yes - -
Wireless Charging Yes Yes Yes - -
Voice
HD Voice Yes Yes Yes Yes * -
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Samsung Galaxy Z Flip5 Samsung Galaxy Z Flip6 Samsung Galaxy S21 LG K4 / Optimus Zone 3 / Rebel ZTE Imperial II
  X > < X > < X > < X > < X

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

 
Phone Samsung Galaxy Z Flip5 Samsung Galaxy Z Flip6 Samsung Galaxy S21 LG K4 / Optimus Zone 3 / Rebel ZTE Imperial II

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