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Phone Nokia 1661 Samsung Captivate Glide BLU S1 BlackBerry Key2 Ericsson R520
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Not yet released Released Released
Specifications 
Display Size 1.8" diag.
4 : 3
4" diag.
5 : 3
5.2" diag.
16 : 9
4.5" diag.
5 : 3
?
Display Resolution & Type 128 x 160 pixels
(~114 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
AMOLED
720 x 1280 pixels
(~282 ppi)
LCD (TFT/TFD)
1080 x 1620 pixels
(~433 ppi)
LCD (TFT/TFD)
?
Display Refresh ? 60 Hz 60 Hz 60 Hz ?
Battery 860 mAh 1,650 mAh 2,800 mAh 3,500 mAh ?
Processor ? 1 GHz Nvidia Tegra 2 AP20H 1.5 GHz MediaTek 6750 2.2 GHz Qualcomm Snapdragon 660 ?
RAM ? 1 GB 2 GB 6 GB ?
Storage ? raw hardware 8 GB 16 GB 64 GB * ? raw hardware
Main Camera - 8 megapixel 13 megapixel 12 megapixel -
Wide Camera - - - - -
Tele Camera - - - 12 megapixel -
Video Capture - 720p HD 1080p HD 4K UHD -
Front Camera - 1 megapixel 5 megapixel 8 megapixel -
Weight 2.9 oz
(82g)
5.2 oz
(147g)
4.83 oz
(137g)
5.93 oz
(168g)
4.23 oz
(120g)
Dimensions 4.25" x 1.8" x 0.53"
(108 x 46 x 13.5 mm)
4.88" x 2.55" x 0.51"
(124 x 65 x 13 mm)
5.8" x 2.87" x 0.33"
(147 x 73 x 8.4 mm)
5.96" x 2.82" x 0.33"
(151 x 72 x 8.4 mm)
5.12" x 1.97" x 0.63"
(130 x 50 x 16 mm)
Form Factor Slab Slide Slab Slab Slab
Platform / OS (proprietary) Android Android Android (proprietary)
Network Bands

GSM: 850, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

4G LTE: 2, 3, 4, 5, 7, 12, 17, 25, 26, 41

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 20, 28, 29, 30, 38, 40, 41, 66

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

Data Technology - HSPA+ 21 LTE (Cat 6) LTE (Cat 11) GPRS
Features 
Fingerprint Reader - - Yes
stand-alone
Yes
stand-alone
-
Flashlight Yes - Yes Yes -
GPS / Location - n/a n/a n/a -
Accessibility
Hearing Aid Compatible - Yes - Yes -
Multiple Languages - n/a n/a n/a Yes
TTY/TDD (Digital) - Yes Yes Yes -
Alerts
Ringer Profiles Yes - - - Yes
Connectivity
Bluetooth - Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
HSP, Sync, OPP, DUN
Infrared (IR) - - - - Yes
Mobile Hotspot - n/a n/a n/a -
NFC - - - Yes -
USB - Yes
Micro-USB
Yes
Micro-USB
Yes
USB Type C
-
Wi-Fi - Yes Yes
4 (802.11 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 Yes
Customization
Custom Graphics - n/a n/a n/a -
Custom Ringtones - n/a n/a n/a Yes
Real-Music Ringers - n/a n/a n/a -
Data & Network
Data Tethering - n/a n/a n/a Yes
WAP / Web Browser - n/a n/a n/a Yes
Input
Predictive Text Entry Yes n/a n/a n/a Yes
Side Keys - Yes Yes Yes Yes
Text Keyboard, Hardware - Yes - Yes -
Touch Screen - Yes Yes Yes -
Memory
Memory Card Slot - Yes Yes Yes -
Messaging
Email Client - n/a n/a n/a -
Instant Messaging - n/a n/a n/a -
MMS - n/a n/a n/a -
Text Messaging Templates - n/a n/a n/a Yes
Music
FM Radio Yes - Yes Yes -
Headphone Jack (3.5mm) - Yes Yes Yes -
Music Player - n/a n/a n/a -
Photo & Video
DLNA - Yes - - -
TV Output - Yes - Yes -
Power
Fast Charging - - - Yes -
Productivity
Alarm Yes n/a n/a n/a Yes
Calculator Yes n/a n/a n/a Yes
Calendar Yes n/a n/a n/a Yes
Voice Memo Yes n/a n/a n/a Yes
Software
Games Yes n/a n/a n/a Yes
Voice
HD Voice - - Yes Yes -
Headset Jack (2.5 mm) Yes n/a n/a n/a -
Speaker Phone Yes Yes Yes Yes Yes
  Nokia 1661 Samsung Captivate Glide BLU S1 BlackBerry Key2 Ericsson R520
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Nokia 1661 Samsung Captivate Glide BLU S1 BlackBerry Key2 Ericsson R520

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