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Specifications
	X >	< X >	< X >	< X >	< X

Phone	BlackBerry 8820	Nokia 1661	Nokia E65	Nokia Lumia 635 (CDMA)	BlackBerry 7750
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	1.8" diag. 4 : 3	?	4.5" diag. 16 : 9	?
Display Resolution & Type	320 x 240 pixels LCD (TFT/TFD)	128 x 160 pixels (~114 ppi) LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	480 x 854 pixels (~218 ppi) LCD (TFT/TFD)	240 x 240 pixels LCD (Color)
Display Refresh	?	?	?	?	?
Battery	1,400 mAh	860 mAh	950 mAh	1,830 mAh	?
Processor	?	?	?	1.2 GHz Qualcomm Snapdragon 400 (MSM8926)	?
RAM	?	?	?	512 MB	?
Storage	? raw hardware	? raw hardware	? raw hardware	8 GB	? raw hardware
Main Camera	-	-	2 megapixel	5 megapixel	-
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	-	CIF (352 x 288)	720p HD	-
Front Camera	-	-	-	-	-
Weight	4.73 oz (134g)	2.9 oz (82g)	4.06 oz (115g)	4.73 oz (134g)	5.01 oz (142g)
Dimensions	4.49" x 2.6" x 0.55" (114 x 66 x 14 mm)	4.25" x 1.8" x 0.53" (108 x 46 x 13.5 mm)	4.13" x 1.93" x 0.61" (105 x 49 x 15.5 mm)	5.1" x 2.63" x 0.36" (130 x 67 x 9.1 mm)	4.76" x 3.03" x 0.71" (121 x 77 x 18 mm)
Form Factor	Slab	Slab	Slide	Slab	Slab
Platform / OS	BlackBerry OS	(proprietary)	S60 (Symbian)	Windows	BlackBerry OS
Network Bands	GSM: 850, 900, 1800, 1900	GSM: 850, 1900	WCDMA: 1 GSM: 850, 900, 1800, 1900	4G LTE: 25, 26, 41 WCDMA: 1, 2, 5 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900
Data Technology	EDGE	-	EDGE	LTE (Cat 3)	1xRTT
Features
Flashlight	-	Yes	-	-	-
GPS / Location	n/a	-	n/a	n/a	n/a
Accessibility
Hearing Aid Compatible	-	-	-	Yes	-
Multiple Languages	n/a	-	n/a	n/a	n/a
TTY/TDD (Digital)	Yes	-	Yes	Yes	Yes
Alerts
Ringer Profiles	Yes	Yes	Yes	-	Yes
Connectivity
Bluetooth	Yes Classic Audio	-	Yes Classic Audio	Yes Classic Audio	-
Infrared (IR)	-	-	Yes	-	-
Mobile Hotspot	n/a	-	n/a	n/a	n/a
USB	Yes Mini-USB	-	Yes	Yes Micro-USB	Yes
Wi-Fi	Yes	-	Yes 802.11 b,g	Yes 4 (802.11 b,g,n)	-
Contacts
Picture ID	n/a	-	n/a	n/a	n/a
Ringer ID	n/a	-	n/a	n/a	n/a
Voice Dialing	n/a	-	n/a	n/a	n/a
Customization
Custom Graphics	n/a	-	n/a	n/a	n/a
Custom Ringtones	n/a	-	n/a	n/a	n/a
Real-Music Ringers	n/a	-	n/a	n/a	n/a
Data & Network
Data Tethering	n/a	-	n/a	n/a	n/a
WAP / Web Browser	n/a	-	n/a	n/a	n/a
Input
Predictive Text Entry	n/a	Yes	n/a	n/a	n/a
Side Keys	Yes	-	Yes	Yes	Yes
Text Keyboard, Hardware	Yes	-	-	-	Yes
Touch Screen	-	-	-	Yes	-
Memory
Memory Card Slot	Yes	-	Yes	Yes	-
Messaging
Email Client	n/a	-	n/a	n/a	n/a
Instant Messaging	n/a	-	n/a	n/a	n/a
MMS	n/a	-	n/a	n/a	n/a
Text Messaging Templates	n/a	-	n/a	n/a	n/a
Music
FM Radio	-	Yes	-	Yes	-
Headphone Jack (3.5mm)	-	-	-	Yes	-
Music Player	n/a	-	n/a	n/a	n/a
Photo & Video
DLNA	-	-	-	Yes	-
Video Calling	n/a	-	n/a	n/a	n/a
Productivity
Alarm	n/a	Yes	n/a	n/a	n/a
Calculator	n/a	Yes	n/a	n/a	n/a
Calendar	n/a	Yes	n/a	n/a	n/a
To-Do List	n/a	-	n/a	n/a	n/a
Voice Memo	n/a	Yes	n/a	n/a	n/a
Software
Games	n/a	Yes	n/a	n/a	n/a
Java (J2ME)	n/a	-	n/a	n/a	n/a
Voice
Headset Jack (2.5 mm)	n/a	Yes	n/a	n/a	n/a
Push-To-Talk	Yes *	-	Yes *	-	-
Speaker Phone	Yes	Yes	Yes	Yes	-
	* Some versions only
	BlackBerry 8820	Nokia 1661	Nokia E65	Nokia Lumia 635 (CDMA)	BlackBerry 7750
	X >	< X >	< X >	< X >	< X

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


Phone	BlackBerry 8820	Nokia 1661	Nokia E65	Nokia Lumia 635 (CDMA)	BlackBerry 7750