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Phone Samsung Galaxy A03s ZTE Z221 Samsung SCH-A990 Nokia N81
Current U.S. Carriers AT&T
Consumer Cellular
TracFone
Verizon
(none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 6.5" diag.
20 : 9
2" diag.
4 : 3
? 2.4" diag.
4 : 3
Display Resolution & Type 720 x 1600 pixels
(~270 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~200 ppi)
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz ? ? ?
Battery 5,000 mAh 900 mAh 1,000 mAh 1,050 mAh
Processor 2.3 GHz Mediatek Helio P35 (MT6765V) ? ? 369 MHz ARM 11
RAM 3 GB ? ? ?
Storage 32 GB 142 MB ? raw hardware 8 GB *
Main Camera 13 megapixel Yes 3 megapixel 2 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture 1080p HD QCIF (176 x 144) ? VGA (640 x 480)
Front Camera 5 megapixel - - -
Weight 6.98 oz
(198g)
3.24 oz
(92g)
4.4 oz
(125g)
4.94 oz
(140g)
Dimensions 6.53" x 2.98" x 0.36"
(166 x 76 x 9.1 mm)
3.76" x 1.92" x 0.73"
(96 x 49 x 18.5 mm)
3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
4.02" x 1.97" x 0.7"
(102 x 50 x 17.8 mm)
Form Factor Slab Clamshell Clamshell Slide
Platform / OS Android (proprietary) (proprietary) S60 (Symbian)
Network Bands

4G LTE: 2, 4, 5, 7, 12, 13, 14, 25, 26, 41, 66, 71

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

WCDMA: 1

GSM: 850, 900, 1800, 1900

Data Technology LTE (Cat 6) HSDPA 3.6 EVDO r0 EDGE
Features 
Barometer Yes - - -
Fingerprint Reader Yes
stand-alone
- - -
Flashlight Yes - Yes -
GPS / Location n/a Yes Yes n/a
Accessibility
Hearing Aid Compatible Yes
M3, T3 (mostly tele-coil compatible)
Yes
M3, T3 (mostly tele-coil compatible)
Yes
M3 (mostly compatible)
-
Multiple Languages n/a Yes Yes n/a
TTY/TDD (Digital) Yes Yes Yes -
Alerts
Extra Display - Yes Yes -
Ringer Profiles - Yes - Yes
Connectivity
Bluetooth Yes Yes Yes Yes
USB Yes
USB Type C
Yes Yes Yes
Micro-USB
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
- - Yes
802.11 b,g
Contacts
Picture ID n/a - Yes n/a
Ringer ID n/a - Yes n/a
Voice Dialing n/a - Yes n/a
Customization
Custom Graphics n/a Yes Yes n/a
Custom Ringtones n/a Yes Yes n/a
Real-Music Ringers n/a Yes Yes n/a
Data & Network
Data Tethering n/a - Yes n/a
WAP / Web Browser n/a Yes Yes n/a
Input
Predictive Text Entry n/a Yes Yes n/a
Side Keys Yes Yes Yes Yes
Touch Screen Yes
Capacitive
- - -
Memory
Memory Card Slot Yes - Yes Yes *
Messaging
Email Client n/a Yes - n/a
EMS / Picture Messaging n/a - Yes n/a
Instant Messaging n/a Yes - n/a
MMS n/a Yes Yes n/a
Text Messaging Templates n/a Yes Yes n/a
Music
FM Radio - - - Yes
Headphone Jack (3.5mm) Yes - - Yes
Music Player n/a - Yes n/a
Stereo Speakers - - Yes Yes
Photo & Video
TV Output - - Yes -
Video Calling n/a - - n/a
Productivity
Alarm n/a Yes Yes n/a
Calculator n/a Yes Yes n/a
Calendar n/a Yes Yes n/a
To-Do List n/a - - n/a
Voice Memo n/a Yes Yes n/a
Software
BREW n/a - Yes n/a
Games n/a Yes Yes n/a
Java (J2ME) n/a Yes - n/a
Voice
HD Voice Yes - - -
Push-To-Talk - - - Yes *
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  Samsung Galaxy A03s ZTE Z221 Samsung SCH-A990 Nokia N81
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Phone Samsung Galaxy A03s ZTE Z221 Samsung SCH-A990 Nokia N81

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