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Phone	HTC Droid Eris	HTC Touch Pro2 (CDMA)	Samsung SPH-A660 / VI660	Kyocera DuraXV Extreme / Extreme+	Palm Treo 650 (CDMA)
Current U.S. Carriers	(none)	(none)	(none)	Verizon	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	3.2" diag. 5 : 3	3.6" diag. 5 : 3	?	2.6" diag. 4 : 3	?
Display Resolution & Type	320 x 480 pixels (~180 ppi) LCD (TFT/TFD)	480 x 800 pixels (~259 ppi) LCD (TFT/TFD)	128 x 160 pixels LCD (Color)	240 x 320 pixels (~154 ppi) LCD (TFT/TFD)	320 x 320 pixels LCD (TFT/TFD)
Display Refresh	60 Hz	?	?	?	?
Battery	1,300 mAh	1,500 mAh	?	1,770 mAh	?
Processor	528 MHz MSM7600	528 MHz MSM7600	?	2 GHz MediaTek Helio A22 (6761)	312 MHz Intel XScale PXA270
RAM	?	?	?	2 GB	?
Storage	? raw hardware	? raw hardware	? raw hardware	16 GB	? raw hardware
Main Camera	5 megapixel	3 megapixel	-	5 megapixel	Yes
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	CIF (352 x 288)	?	-	720p HD	QVGA (320 x 240)
Front Camera	-	-	-	-	-
Weight	4.43 oz (126g)	6.35 oz (180g)	3.54 oz (100g)	6.8 oz (193g)	6.3 oz (179g)
Dimensions	4.45" x 2.19" x 0.52" (113 x 55 x 13.2 mm)	4.57" x 2.33" x 0.68" (116 x 59 x 17.3 mm)	3.3" x 1.8" x 0.87" (84 x 46 x 22.1 mm)	4.36" x 2.22" x 1.07" (111 x 56 x 27.2 mm)	4.4" x 2.3" x 0.9" (112 x 58 x 22.9 mm)
Form Factor	Slab	Slab	Clamshell	Clamshell	Slab
Platform / OS	Android	Windows Mobile Professional	(proprietary)	(proprietary)	Palm OS
Network Bands	CDMA: 850, 1900	WCDMA: 1 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900 AMPS: 850	4G LTE: 2, 4, 5, 12, 13 WCDMA: 1, 2, 5	CDMA: 850, 1900
Data Technology	EVDO rA	EVDO rA	1xRTT	LTE (Cat 4)	1xRTT
Features
Barometer	-	-	-	Yes *	-
Flashlight	-	-	-	Yes	-
GPS / Location	n/a	n/a	Yes	Yes	n/a
Ruggedized	-	-	-	Yes	-
Water-Resistant	-	-	-	Yes IPX8 (SCUBA)	-
Accessibility
Adjustable Text Size	n/a	n/a	-	Yes	n/a
Hearing Aid Compatible	Yes M3, T3 (mostly tele-coil compatible)	Yes M4, T3 (mostly tele-coil compatible)	-	Yes M4, T4 (very tele-coil compatible)	-
Multiple Languages	n/a	n/a	Yes	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	-
Alerts
Extra Display	-	-	-	Yes	-
Connectivity
Bluetooth	Yes	Yes	-	Yes	Yes
Infrared (IR)	-	-	-	-	Yes
Mobile Hotspot	n/a	n/a	-	Yes	n/a
USB	Yes Mini-USB	Yes	-	Yes USB Type C	-
Wi-Fi	Yes 802.11 b,g	Yes	-	Yes 5 (802.11 a,ac,b,g,n)	-
Contacts
Picture ID	n/a	n/a	Yes	Yes	n/a
Ringer ID	n/a	n/a	Yes	Yes	n/a
Voice Dialing	n/a	n/a	Yes	Yes	n/a
Customization
Custom Graphics	n/a	n/a	Yes	Yes	n/a
Custom Ringtones	n/a	n/a	Yes	Yes	n/a
Real-Music Ringers	n/a	n/a	-	Yes	n/a
Data & Network
Data Tethering	n/a	n/a	Yes	Yes	n/a
WAP / Web Browser	n/a	n/a	Yes	Yes	n/a
Input
Predictive Text Entry	n/a	n/a	Yes	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Stylus	-	Yes	-	-	-
Text Keyboard, Hardware	-	Yes	-	-	Yes
Touch Screen	Yes Capacitive	Yes Resistive	-	-	Yes
Memory
Memory Card Slot	Yes	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	-	Yes	-
Music Player	n/a	n/a	-	Yes	n/a
Photo & Video
TV Output	-	Yes	-	-	-
Productivity
Alarm	n/a	n/a	Yes	Yes	n/a
Calculator	n/a	n/a	Yes	Yes	n/a
Calendar	n/a	n/a	Yes	Yes	n/a
To-Do List	n/a	n/a	Yes	-	n/a
Voice Memo	n/a	n/a	Yes	Yes	n/a
Software
Games	n/a	n/a	Yes	-	n/a
Java (J2ME)	n/a	n/a	Yes	-	n/a
Voice
HD Voice	-	-	-	Yes	-
Headset Jack (2.5 mm)	n/a	n/a	Yes	-	n/a
Push-To-Talk	-	-	-	Yes	-
Speaker Phone	Yes	Yes	-	Yes	Yes
	* Some versions only
	HTC Droid Eris	HTC Touch Pro2 (CDMA)	Samsung SPH-A660 / VI660	Kyocera DuraXV Extreme / Extreme+	Palm Treo 650 (CDMA)
	X >	< X >	< X >	< X >	< X

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


Phone	HTC Droid Eris	HTC Touch Pro2 (CDMA)	Samsung SPH-A660 / VI660	Kyocera DuraXV Extreme / Extreme+	Palm Treo 650 (CDMA)