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

Phone	Palm Pre 2 (GSM)	Samsung Array / Montage	Nokia Lumia 635 (CDMA)	Motorola i80s	ZTE Z221
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	3.1" diag. 5 : 3	2.4" diag. 4 : 3	4.5" diag. 16 : 9	?	2" diag. 4 : 3
Display Resolution & Type	320 x 480 pixels (~186 ppi) LCD (TFT/TFD)	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)	480 x 854 pixels (~218 ppi) LCD (TFT/TFD)	?	240 x 320 pixels (~200 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	?	?
Battery	1,150 mAh	1,000 mAh	1,830 mAh	?	900 mAh
Processor	1 GHz TI 3630	480 MHz Qualcomm QSC6155	1.2 GHz Qualcomm Snapdragon 400 (MSM8926)	?	?
RAM	?	128 MB	512 MB	?	?
Storage	? raw hardware	256 MB	8 GB	? raw hardware	142 MB
Main Camera	5 megapixel	2 megapixel	5 megapixel	-	Yes
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	VGA (640 x 480)	QCIF (176 x 144)	720p HD	-	QCIF (176 x 144)
Front Camera	-	-	-	-	-
Weight	5.1 oz (145g)	4.14 oz (117g)	4.73 oz (134g)	4 oz (113g)	3.24 oz (92g)
Dimensions	3.96" x 2.35" x 0.67" (101 x 60 x 17 mm)	4.41" x 2.12" x 0.59" (112 x 54 x 15 mm)	5.1" x 2.63" x 0.36" (130 x 67 x 9.1 mm)	5.4" x 2" x 1" (137 x 51 x 25.4 mm)	3.76" x 1.92" x 0.73" (96 x 49 x 18.5 mm)
Form Factor	Slide	Slide	Slab	Slab	Clamshell
Platform / OS	webOS	(proprietary)	Windows	(proprietary)	(proprietary)
Network Bands	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900	CDMA: 800, 850, 1900	4G LTE: 25, 26, 41 WCDMA: 1, 2, 5 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900	iDEN: 800	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900
Data Technology	HSDPA 3.6	1xRTT	LTE (Cat 3)	-	HSDPA 3.6
Features
GPS / Location	n/a	Yes	n/a	-	Yes
Accessibility
Hearing Aid Compatible	-	Yes M3, T4 (very tele-coil compatible)	Yes M3, T4 (very tele-coil compatible)	-	Yes M3, T3 (mostly tele-coil compatible)
Multiple Languages	n/a	Yes	n/a	Yes	Yes
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	Yes
Alerts
Extra Display	-	-	-	-	Yes
Ringer Profiles	-	-	-	Yes	Yes
Connectivity
Bluetooth	Yes	Yes	Yes	-	Yes
Mobile Hotspot	n/a	-	n/a	-	-
USB	Yes Micro-USB	Yes Micro-USB	Yes Micro-USB	-	Yes
Wi-Fi	Yes 802.11 b,g	-	Yes 4 (802.11 b,g,n)	-	-
Contacts
Picture ID	n/a	Yes	n/a	-	-
Ringer ID	n/a	Yes	n/a	-	-
Voice Dialing	n/a	Yes	n/a	Yes	-
Customization
Custom Graphics	n/a	Yes	n/a	-	Yes
Custom Ringtones	n/a	Yes	n/a	-	Yes
Real-Music Ringers	n/a	Yes	n/a	-	Yes
Data & Network
Data Tethering	n/a	-	n/a	Yes	-
WAP / Web Browser	n/a	Yes	n/a	Yes	Yes
Input
Predictive Text Entry	n/a	Yes	n/a	Yes	Yes
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	Yes	Yes	-	-	-
Touch Screen	Yes Capacitive	-	Yes Capacitive	-	-
Memory
Memory Card Slot	-	Yes	Yes	-	-
Messaging
Email Client	n/a	Yes	n/a	-	Yes
Instant Messaging	n/a	-	n/a	-	Yes
MMS	n/a	Yes	n/a	-	Yes
Text Messaging Templates	n/a	Yes	n/a	-	Yes
Music
FM Radio	-	-	Yes	-	-
Headphone Jack (3.5mm)	Yes	Yes	Yes	-	-
Music Player	n/a	Yes	n/a	-	-
Photo & Video
DLNA	-	-	Yes	-	-
Productivity
Alarm	n/a	Yes	n/a	Yes	Yes
Calculator	n/a	Yes	n/a	Yes	Yes
Calendar	n/a	Yes	n/a	Yes	Yes
To-Do List	n/a	-	n/a	-	-
Voice Memo	n/a	Yes	n/a	Yes	Yes
Software
Games	n/a	Yes	n/a	Yes	Yes
Java (J2ME)	n/a	Yes	n/a	Yes	Yes
Voice
Headset Jack (2.5 mm)	n/a	-	n/a	Yes	-
Push-To-Talk	-	-	-	Yes	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Palm Pre 2 (GSM)	Samsung Array / Montage	Nokia Lumia 635 (CDMA)	Motorola i80s	ZTE Z221
	X >	< X >	< X >	< X >	< X

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


Phone	Palm Pre 2 (GSM)	Samsung Array / Montage	Nokia Lumia 635 (CDMA)	Motorola i80s	ZTE Z221