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Phone	HTC Droid Eris	Samsung SPH-A660 / VI660	HTC Touch Pro2 (GSM) / Tilt 2	Nokia 8801 / 8800	ZTE Z998 / Unico LTE
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	3.2" diag. 5 : 3	?	3.6" diag. 5 : 3	?	4.5" diag. 16 : 9
Display Resolution & Type	320 x 480 pixels (~180 ppi) LCD (TFT/TFD)	128 x 160 pixels LCD (Color)	480 x 800 pixels (~259 ppi) LCD (TFT/TFD)	208 x 208 pixels LCD (TFT/TFD)	540 x 960 pixels (~245 ppi) LCD (TFT/TFD)
Display Refresh	60 Hz	?	?	?	60 Hz
Battery	1,300 mAh	?	1,500 mAh	600 mAh	2,070 mAh
Processor	528 MHz MSM7600	?	528 MHz Qualcomm MSM7200A	?	1.2 GHz Qualcomm Snapdragon 400 MSM8930
RAM	?	?	?	?	1 GB
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	4 GB
Main Camera	5 megapixel	-	3 megapixel	Yes	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	CIF (352 x 288)	-	?	QCIF (176 x 144)	720p HD
Front Camera	-	-	-	-	1 megapixel
Weight	4.43 oz (126g)	3.54 oz (100g)	6.61 oz (187g)	4.82 oz (137g)	4.8 oz (136g)
Dimensions	4.45" x 2.19" x 0.52" (113 x 55 x 13.2 mm)	3.3" x 1.8" x 0.87" (84 x 46 x 22.1 mm)	4.59" x 2.36" x 0.68" (117 x 60 x 17.3 mm)	4.21" x 1.77" x 0.63" (107 x 45 x 16 mm)	5.2" x 2.6" x 0.4" (132 x 66 x 10.2 mm)
Form Factor	Slab	Clamshell	Slab	Slide	Slab
Platform / OS	Android	(proprietary)	Windows Mobile Professional	(proprietary)	Android
Network Bands	CDMA: 850, 1900	CDMA: 850, 1900 AMPS: 850	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900 *	GSM: 850, 1800, 1900 *	4G LTE: 2, 4, 5, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 *
Data Technology	EVDO rA	1xRTT	HSPA 7.2	EDGE	LTE (Cat 3)
Features
GPS / Location	n/a	Yes	n/a	-	n/a
Accessibility
Adjustable Text Size	n/a	-	n/a	-	n/a
Hearing Aid Compatible	Yes M3, T3 (mostly tele-coil compatible)	-	-	-	Yes M3, T4 (very tele-coil compatible)
Multiple Languages	n/a	Yes	n/a	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	-	Yes
Alerts
Ringer Profiles	-	-	-	Yes	-
Connectivity
Bluetooth	Yes	-	Yes	Yes	Yes
Mobile Hotspot	n/a	-	n/a	-	n/a
USB	Yes Mini-USB	-	Yes	-	Yes Micro-USB
Wi-Fi	Yes 802.11 b,g	-	Yes 802.11 b,g	-	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	n/a	Yes	n/a	Yes	n/a
Ringer ID	n/a	Yes	n/a	-	n/a
Voice Dialing	n/a	Yes	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	Yes	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
Stylus	-	-	Yes	-	-
Text Keyboard, Hardware	-	-	Yes	-	-
Touch Screen	Yes Capacitive	-	Yes	-	Yes Capacitive
Memory
Memory Card Slot	Yes	-	Yes	-	Yes
Messaging
Email Client	n/a	-	n/a	Yes	n/a
Instant Messaging	n/a	-	n/a	-	n/a
MMS	n/a	-	n/a	Yes	n/a
Text Messaging Templates	n/a	-	n/a	Yes	n/a
Music
FM Radio	-	-	-	Yes	-
Headphone Jack (3.5mm)	Yes	-	-	-	Yes
Music Player	n/a	-	n/a	Yes	n/a
Photo & Video
TV Output	-	-	Yes	-	-
Video Calling	n/a	-	n/a	-	n/a
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	Yes	n/a	Yes	n/a
Software
Games	n/a	Yes	n/a	Yes	n/a
Java (J2ME)	n/a	Yes	n/a	Yes	n/a
Voice
Headset Jack (2.5 mm)	n/a	Yes	n/a	-	n/a
Push-To-Talk	-	-	Yes *	-	-
Speaker Phone	Yes	-	Yes	Yes	Yes
	* Some versions only
	HTC Droid Eris	Samsung SPH-A660 / VI660	HTC Touch Pro2 (GSM) / Tilt 2	Nokia 8801 / 8800	ZTE Z998 / Unico LTE
	X >	< X >	< X >	< X >	< X

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


Phone	HTC Droid Eris	Samsung SPH-A660 / VI660	HTC Touch Pro2 (GSM) / Tilt 2	Nokia 8801 / 8800	ZTE Z998 / Unico LTE