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Phone ZTE Z221 Samsung Galaxy S6 (GSM) OnePlus 12R Nokia 6315i Nokia N75
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 2" diag.
4 : 3
5.1" diag.
16 : 9
6.8" diag.
20 : 9
? 2.4" diag.
4 : 3
Display Resolution & Type 240 x 320 pixels
(~200 ppi)
LCD (TFT/TFD)
1440 x 2560 pixels
(~576 ppi)
AMOLED
1264 x 2780 pixels
(~450 ppi)
AMOLED
176 x 220 pixels
LCD (TFT/TFD)
240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz 120 Hz ? ?
Battery 900 mAh 2,550 mAh 5,500 mAh 950 mAh 800 mAh
Processor ? 2.1 GHz Samsung Exynos 7420 Snapdragon 8 Gen 2 ? ?
RAM ? 3 GB 8 GB * ? ?
Storage 142 MB 32 GB * 128 GB * ? raw hardware ? raw hardware
Main Camera Yes 16 megapixel 50 megapixel 1 megapixel 2 megapixel
Wide Camera - - 8 megapixel - -
Tele Camera - - - - -
Video Capture QCIF (176 x 144) 4K UHD 4K UHD ? CIF (352 x 288)
Front Camera - 5 megapixel 16 megapixel - -
Weight 3.24 oz
(92g)
4.87 oz
(138g)
7.3 oz
(207g)
3.34 oz
(95g)
4.36 oz
(124g)
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)
6.43" x 2.96" x 0.35"
(163 x 75 x 8.8 mm)
3.52" x 1.87" x 0.72"
(89 x 47 x 18.3 mm)
3.74" x 2.05" x 0.8"
(95 x 52 x 20.3 mm)
Form Factor Clamshell Slab Slab Clamshell Clamshell
Platform / OS (proprietary) Android Android (proprietary) S60 (Symbian)
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

*

5G: 1, 2, 3, 5, 7, 8, 20, 25, 28, 38, 40, 41, 66, 71, 77-C, 78

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 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

CDMA: 850, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

Data Technology HSDPA 3.6 LTE (Cat 6) NR (5G) EVDO r0 WCDMA (UMTS)
Features 
Fingerprint Reader - Yes Yes
in-display (optical)
- -
Flashlight - Yes Yes - -
GPS / Location Yes n/a n/a Yes n/a
VR-ready - Yes - - -
Accessibility
Hearing Aid Compatible Yes Yes Yes Yes -
Multiple Languages Yes n/a n/a Yes n/a
TTY/TDD (Digital) Yes Yes - Yes Yes
Alerts
Extra Display Yes - - Yes Yes
Ringer Profiles Yes - - - Yes
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) - Yes Yes - Yes
MirrorLink - Yes - - -
NFC - Yes Yes - -
USB Yes Yes
Micro-USB
Yes
USB Type C
Yes Yes
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
Yes
7 (802.11 a,ac,ax,b,be,g,n)
- -
Contacts
Picture ID - n/a n/a Yes n/a
Ringer ID - n/a n/a Yes n/a
Voice Dialing - n/a n/a Yes n/a
Customization
Custom Graphics Yes n/a n/a Yes n/a
Custom Ringtones Yes n/a n/a Yes n/a
Real-Music Ringers Yes n/a n/a - n/a
Data & Network
Data Tethering - n/a n/a Yes n/a
Dual-SIM - - Yes - -
External Antenna Jack - n/a n/a Yes n/a
WAP / Web Browser Yes n/a n/a Yes n/a
Input
Predictive Text Entry Yes n/a n/a Yes n/a
Side Keys Yes Yes Yes Yes Yes
Touch Screen - 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 Yes n/a
Text Messaging Templates Yes n/a n/a Yes n/a
Music
FM Radio - - - - Yes
Headphone Jack (3.5mm) - Yes - - -
Music Player - n/a n/a Yes n/a
Stereo Speakers - - - - Yes
Photo & Video
DLNA - Yes - - -
Miracast - Yes - - -
TV Output - Yes - - -
Power
Fast Charging - Yes Yes - -
Wireless Charging - Yes - - -
Productivity
Alarm Yes n/a n/a Yes n/a
Calculator Yes n/a n/a Yes n/a
Calendar Yes n/a n/a Yes n/a
To-Do List - n/a n/a - n/a
Voice Memo Yes n/a n/a - n/a
Software
BREW - n/a n/a Yes n/a
Games Yes n/a n/a Yes n/a
Java (J2ME) Yes n/a n/a - n/a
Voice
HD Voice - Yes Yes - -
Headset Jack (2.5 mm) - n/a n/a Yes n/a
Speaker Phone Yes Yes Yes Yes Yes
  ZTE Z221 Samsung Galaxy S6 (GSM) OnePlus 12R Nokia 6315i Nokia N75
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Phone ZTE Z221 Samsung Galaxy S6 (GSM) OnePlus 12R Nokia 6315i Nokia N75

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