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Phone Nokia Lumia 521 / 520 Ericsson T66 Coolpad REVVL Plus Sanyo SCP-3810 / Mirro Alcatel Idol 3
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 4" diag.
5 : 3
? 6" diag.
16 : 9
2.4" diag.
4 : 3
5.5" diag.
16 : 9
Display Resolution & Type 480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
? 1080 x 1920 pixels
(~367 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
1080 x 1920 pixels
(~401 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz ? 60 Hz
Battery 1,430 mAh ? 3,380 mAh 1,000 mAh 2,910 mAh
Processor 1 GHz Qualcomm Snapdragon S4 MSM8270 ? 2 GHz Qualcomm Snapdragon 625 (MSM8953) ? 1.5 GHz Qualcomm Snapdragon 615 (MSM8939)
RAM 512 MB ? 2 GB ? 2 GB
Storage 8 GB ? raw hardware 32 GB ? raw hardware 16 GB
Main Camera 5 megapixel - 13 megapixel 1 megapixel 13 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 720p HD - 1080p HD - 1080p HD
Front Camera - - 8 megapixel - 8 megapixel
Weight 4.39 oz
(124g)
2.08 oz
(59g)
6.91 oz
(196g)
3.97 oz
(112g)
5.09 oz
(144g)
Dimensions 4.72" x 2.52" x 0.39"
(120 x 64 x 9.9 mm)
3.62" x 1.61" x 0.69"
(92 x 41 x 17.5 mm)
6.49" x 3.24" x 0.34"
(165 x 82 x 8.6 mm)
3.82" x 2.01" x 0.71"
(97 x 51 x 18.1 mm)
6" x 2.96" x 0.29"
(152 x 75 x 7.4 mm)
Form Factor Slab Slab Slab Clamshell Slab
Platform / OS Windows (proprietary) Android (proprietary) Android
Network Bands

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

GSM: 900, 1800, 1900

4G LTE: 2, 4, 5, 12, 66

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

4G LTE: 2, 4, 5, 7, 12, 17

WCDMA: 1, 2, 4, 5

GSM: 850, 900, 1800, 1900

Data Technology HSPA+ 21 - LTE (Cat 6) 1xRTT LTE (Cat 4)
Features 
Fingerprint Reader - - Yes
stand-alone
- -
Flashlight - - Yes - Yes
GPS / Location n/a - n/a Yes n/a
Accessibility
Adjustable Text Size n/a - n/a Yes n/a
Hearing Aid Compatible Yes - Yes Yes Yes
Multiple Languages n/a Yes n/a Yes n/a
TTY/TDD (Digital) Yes - Yes Yes Yes
Alerts
Extra Display - - - Yes -
Ringer Profiles - Yes - - -
Connectivity
Bluetooth Yes - Yes Yes Yes
Mobile Hotspot n/a - n/a - n/a
NFC - - - - Yes
USB Yes - Yes
Micro-USB
Yes
Micro-USB
Yes
Micro-USB
Wi-Fi Yes - Yes
5 (802.11 a,ac,b,g,n)
- Yes
4 (802.11 a,b,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 n/a Yes n/a Yes n/a
Custom Ringtones n/a Yes n/a Yes n/a
Real-Music Ringers n/a - n/a Yes n/a
Data & Network
Data Tethering n/a - n/a Yes n/a
WAP / Web Browser n/a Yes n/a Yes n/a
Input
Predictive Text Entry n/a Yes n/a Yes n/a
Side Keys Yes Yes Yes Yes Yes
Touch Screen Yes - Yes - Yes
Memory
Memory Card Slot Yes - Yes - Yes
Messaging
Email Client n/a - n/a Yes n/a
EMS / Picture Messaging n/a Yes n/a - n/a
Instant Messaging n/a - n/a Yes n/a
MMS n/a - n/a - n/a
Text Messaging Templates n/a Yes n/a Yes n/a
Music
FM Radio - - Yes - Yes
Headphone Jack (3.5mm) Yes - Yes - Yes
Music Player n/a - n/a - n/a
Stereo Speakers - - - - Yes
Photo & Video
Miracast - - - - Yes
Productivity
Alarm n/a Yes n/a Yes n/a
Calculator n/a Yes n/a Yes n/a
Calendar n/a Yes n/a Yes n/a
To-Do List n/a Yes n/a Yes n/a
Voice Memo n/a - n/a Yes n/a
Software
Games n/a Yes n/a Yes n/a
Java (J2ME) n/a - n/a Yes 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
  Nokia Lumia 521 / 520 Ericsson T66 Coolpad REVVL Plus Sanyo SCP-3810 / Mirro Alcatel Idol 3
  X > < X > < X > < X > < X

NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Nokia Lumia 521 / 520 Ericsson T66 Coolpad REVVL Plus Sanyo SCP-3810 / Mirro Alcatel Idol 3

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