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Phone ZTE Z221 Samsung Galaxy S6 (GSM) Samsung Galaxy S7 active LG V50 ThinQ 5G
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 2" diag.
4 : 3
5.1" diag.
16 : 9
5.1" diag.
16 : 9
6.4" diag.
19.5 : 9
Display Resolution & Type 240 x 320 pixels
(~200 ppi)
LCD (TFT/TFD)
1440 x 2560 pixels
(~576 ppi)
AMOLED
1440 x 2560 pixels
(~576 ppi)
AMOLED
1440 x 3120 pixels
(~537 ppi)
AMOLED
Display Refresh ? 60 Hz 60 Hz 60 Hz
Battery 900 mAh 2,550 mAh 4,000 mAh 4,000 mAh
Processor ? 2.1 GHz Samsung Exynos 7420 2.2 GHz Qualcomm Snapdragon 820 (MSM8996) 2.8 GHz Qualcomm Snapdragon 855
RAM ? 3 GB 4 GB 6 GB
Storage 142 MB 32 GB * 32 GB 128 GB
Main Camera Yes 16 megapixel 12 megapixel 12 megapixel
Wide Camera - - - 16 megapixel
Tele Camera - - - 12 megapixel
Video Capture QCIF (176 x 144) 4K UHD 4K UHD 4K UHD
Front Camera - 5 megapixel 5 megapixel 8 megapixel
Weight 3.24 oz
(92g)
4.87 oz
(138g)
6.53 oz
(185g)
6.6 oz
(187g)
Dimensions 3.76" x 1.92" x 0.73"
(96 x 49 x 18.5 mm)
5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
5.86" x 2.95" x 0.39"
(149 x 75 x 9.9 mm)
6.26" x 3" x 0.33"
(159 x 76 x 8.3 mm)
Form Factor Clamshell Slab Slab Slab
Platform / OS (proprietary) Android Android Android
Network Bands

WCDMA: 2, 5

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

*

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 18, 19, 20, 29, 30, 38, 39, 40, 41

WCDMA: 1, 2, 5, 8

GSM: 850, 900, 1800, 1900

5G: 41, 260, 261

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 20, 25, 26, 28, 40, 41, 46, 48, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

*

Data Technology HSDPA 3.6 LTE (Cat 6) LTE (Cat 9) NR (5G)
Features 
Barometer - - Yes Yes
Fingerprint Reader - Yes Yes Yes
stand-alone
Flashlight - Yes Yes Yes
GPS / Location Yes n/a n/a n/a
Ruggedized - - Yes -
VR-ready - Yes - -
Water-Resistant - - Yes
IPX8 (SCUBA)
Yes
IPX8 (SCUBA)
Accessibility
Adjustable Text Size - n/a n/a n/a
Hearing Aid Compatible Yes Yes Yes Yes
Multiple Languages Yes n/a n/a n/a
TTY/TDD (Digital) Yes Yes Yes Yes
Alerts
Extra Display Yes - - -
Ringer Profiles Yes - - -
Connectivity
Bluetooth Yes Yes Yes Yes
Infrared (IR) - Yes - -
MirrorLink - Yes Yes Yes
Mobile Hotspot - n/a n/a n/a
NFC - Yes Yes Yes
USB Yes 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
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID - n/a n/a n/a
Ringer ID - n/a n/a n/a
Voice Dialing - n/a n/a n/a
Customization
Custom Graphics Yes n/a n/a n/a
Custom Ringtones Yes n/a n/a n/a
Real-Music Ringers Yes n/a n/a n/a
Data & Network
Data Tethering - n/a n/a n/a
WAP / Web Browser Yes n/a n/a n/a
Input
Predictive Text Entry Yes n/a n/a n/a
Side Keys Yes Yes Yes Yes
Touch Screen - Yes Yes Yes
Memory
Memory Card Slot - - Yes Yes
Messaging
Email Client Yes n/a n/a n/a
Instant Messaging Yes n/a n/a n/a
MMS Yes n/a n/a n/a
Text Messaging Templates Yes n/a n/a n/a
Music
FM Radio - - - Yes
Headphone Jack (3.5mm) - Yes Yes Yes
Music Player - n/a n/a n/a
Stereo Speakers - - - Yes
Photo & Video
DLNA - Yes Yes Yes
Miracast - Yes Yes Yes
TV Output - Yes - -
Power
Fast Charging - Yes Yes Yes
Wireless Charging - Yes Yes Yes
Productivity
Alarm Yes n/a n/a n/a
Calculator Yes n/a n/a n/a
Calendar Yes n/a n/a n/a
Voice Memo Yes n/a n/a n/a
Software
Games Yes n/a n/a n/a
Java (J2ME) Yes n/a n/a n/a
Voice
HD Voice - Yes Yes Yes
Speaker Phone Yes Yes Yes Yes
  ZTE Z221 Samsung Galaxy S6 (GSM) Samsung Galaxy S7 active LG V50 ThinQ 5G
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone ZTE Z221 Samsung Galaxy S6 (GSM) Samsung Galaxy S7 active LG V50 ThinQ 5G

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