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Phone Samsung Galaxy Core Prime (GSM) Samsung Galaxy S6 (CDMA) Nokia 1661 ZTE Z221
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 4.5" diag.
5 : 3
5.1" diag.
16 : 9
1.8" diag.
4 : 3
2" diag.
4 : 3
Display Resolution & Type 480 x 800 pixels
(~207 ppi)
LCD (TFT/TFD)
1440 x 2560 pixels
(~576 ppi)
AMOLED
128 x 160 pixels
(~114 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~200 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz 60 Hz ? ?
Battery 2,000 mAh 2,550 mAh 860 mAh 900 mAh
Processor 1.2 GHz Qualcomm Snapdragon 410 MSM8916 2.1 GHz Samsung Exynos ? ?
RAM 1 GB 3 GB ? ?
Storage 8 GB 32 GB * ? raw hardware 142 MB
Main Camera 5 megapixel 16 megapixel - Yes
Wide Camera - - - -
Tele Camera - - - -
Video Capture 720p HD 4K UHD - QCIF (176 x 144)
Front Camera 2 megapixel 5 megapixel - -
Weight 4.27 oz
(121g)
4.87 oz
(138g)
2.9 oz
(82g)
3.24 oz
(92g)
Dimensions 5.16" x 2.68" x 0.35"
(131 x 68 x 8.9 mm)
5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
4.25" x 1.8" x 0.53"
(108 x 46 x 13.5 mm)
3.76" x 1.92" x 0.73"
(96 x 49 x 18.5 mm)
Form Factor Slab Slab Slab Clamshell
Platform / OS Android Android (proprietary) (proprietary)
Network Bands

4G LTE: 2, 4, 5, 12

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

4G LTE: 2, 4, 5, 13

WCDMA: 1, 2, 5, 8

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

*

GSM: 850, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

Data Technology LTE (Cat 3) LTE (Cat 4) - HSDPA 3.6
Features 
Fingerprint Reader - Yes - -
Flashlight Yes Yes Yes -
GPS / Location n/a n/a - Yes
VR-ready - Yes - -
Accessibility
Adjustable Text Size n/a n/a - -
Hearing Aid Compatible Yes Yes - Yes
Multiple Languages n/a n/a - Yes
TTY/TDD (Digital) Yes Yes - Yes
Alerts
Extra Display - - - Yes
Ringer Profiles - - Yes Yes
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
- Yes
Classic Audio
Infrared (IR) - Yes - -
MirrorLink - Yes - -
Mobile Hotspot n/a n/a - -
NFC - Yes - -
USB Yes
Micro-USB
Yes
Micro-USB
- Yes
Wi-Fi Yes
4 (802.11 b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
- -
Contacts
Picture ID n/a n/a - -
Ringer ID n/a n/a - -
Voice Dialing n/a n/a - -
Customization
Custom Graphics n/a n/a - Yes
Custom Ringtones n/a n/a - Yes
Real-Music Ringers n/a n/a - Yes
Data & Network
Data Tethering n/a n/a - -
WAP / Web Browser n/a n/a - Yes
Input
Predictive Text Entry n/a n/a Yes Yes
Side Keys Yes Yes - Yes
Touch Screen Yes Yes - -
Memory
Memory Card Slot Yes - - -
Messaging
Email Client n/a n/a - Yes
Instant Messaging n/a n/a - Yes
MMS n/a n/a - Yes
Text Messaging Templates n/a n/a - Yes
Music
FM Radio - - Yes -
Headphone Jack (3.5mm) Yes Yes - -
Music Player n/a n/a - -
Photo & Video
DLNA - Yes - -
Miracast - Yes - -
TV Output - Yes - -
Power
Fast Charging Yes - - -
Wireless Charging - Yes - -
Productivity
Alarm n/a n/a Yes Yes
Calculator n/a n/a Yes Yes
Calendar n/a n/a Yes Yes
Voice Memo n/a n/a Yes Yes
Software
Games n/a n/a Yes Yes
Java (J2ME) n/a n/a - Yes
Voice
HD Voice Yes Yes - -
Headset Jack (2.5 mm) n/a n/a Yes -
Speaker Phone Yes Yes Yes Yes
  Samsung Galaxy Core Prime (GSM) Samsung Galaxy S6 (CDMA) Nokia 1661 ZTE Z221
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung Galaxy Core Prime (GSM) Samsung Galaxy S6 (CDMA) Nokia 1661 ZTE Z221

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