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Phone	Palm Treo 800w	Samsung SCH-A990	ZTE Obsidian	ZTE Whirl	HP iPAQ hw6510 / hw6515
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	?	4.5" diag. 16 : 9	3.5" diag. 5 : 3	?
Display Resolution & Type	320 x 320 pixels LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	480 x 854 pixels (~218 ppi) LCD (TFT/TFD)	320 x 480 pixels (~165 ppi) LCD (TFT/TFD)	240 x 240 pixels LCD (TFT/TFD)
Display Refresh	?	?	60 Hz	60 Hz	?
Battery	1,150 mAh	1,000 mAh	1,800 mAh	1,300 mAh	1,200 mAh
Processor	?	?	1 GHz MediaTek / MT6735M	1 GHz Qualcomm Snapdragon S1 MSM7225A	312 MHz Intel XScale PXA272
RAM	?	?	1 GB	512 MB	?
Storage	? raw hardware	? raw hardware	8 GB	4 GB	? raw hardware
Main Camera	2 megapixel	3 megapixel	5 megapixel	3 megapixel	1 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	QVGA (320 x 240)	?	720p HD	VGA (640 x 480)	?
Front Camera	-	-	2 megapixel	-	-
Weight	5 oz (142g)	4.4 oz (125g)	4.66 oz (132g)	4.2 oz (119g)	5.8 oz (164g)
Dimensions	4.4" x 2.3" x 0.7" (112 x 58 x 17.8 mm)	3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm)	5.41" x 2.7" x 0.39" (137 x 69 x 10 mm)	4.57" x 2.4" x 0.5" (116 x 61 x 12.7 mm)	4.65" x 2.8" x 0.71" (118 x 71 x 18 mm)
Form Factor	Slab	Clamshell	Slab	Slab	Slab
Platform / OS	Windows Mobile Professional	(proprietary)	Android	Android	Windows Mobile Professional
Network Bands	CDMA: 850, 1900	CDMA: 850, 1900	4G LTE: 2, 4, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900	WCDMA: 2, 4, 5 GSM: 850, 1900	GSM: 850, 900, 1800, 1900
Data Technology	EVDO rA	EVDO r0	LTE (Cat 4)	?	EDGE
Features
Flashlight	-	Yes	Yes	-	-
GPS / Location	n/a	Yes	n/a	n/a	n/a
Accessibility
Adjustable Text Size	n/a	-	n/a	n/a	n/a
Hearing Aid Compatible	Yes M4, T4 (very tele-coil compatible)	Yes M3 (mostly compatible)	Yes M4, T3 (mostly tele-coil compatible)	Yes M3, T4 (very tele-coil compatible)	-
Multiple Languages	n/a	Yes	n/a	n/a	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	Yes
Alerts
Extra Display	-	Yes	-	-	-
Ringer Profiles	-	-	-	-	Yes
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
Infrared (IR)	Yes	-	-	-	Yes
Mobile Hotspot	n/a	-	n/a	n/a	n/a
USB	Yes Micro-USB	Yes	Yes Micro-USB	Yes Micro-USB	Yes
Wi-Fi	Yes 802.11 b,g	-	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 b,g,n)	-
Contacts
Picture ID	n/a	Yes	n/a	n/a	n/a
Ringer ID	n/a	Yes	n/a	n/a	n/a
Voice Dialing	n/a	Yes	n/a	n/a	n/a
Customization
Custom Graphics	n/a	Yes	n/a	n/a	n/a
Custom Ringtones	n/a	Yes	n/a	n/a	n/a
Real-Music Ringers	n/a	Yes	n/a	n/a	n/a
Data & Network
Data Tethering	n/a	Yes	n/a	n/a	n/a
External Antenna Jack	n/a	-	n/a	n/a	n/a
WAP / Web Browser	n/a	Yes	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	-
Stylus	Yes	-	-	-	-
Text Keyboard, Hardware	Yes	-	-	-	Yes
Touch Screen	Yes Resistive	-	Yes Capacitive	Yes	Yes
Memory
Memory Card Slot	Yes	Yes	Yes	Yes	Yes
Messaging
Email Client	n/a	-	n/a	n/a	n/a
EMS / Picture Messaging	n/a	Yes	n/a	n/a	n/a
Instant Messaging	n/a	-	n/a	n/a	n/a
MMS	n/a	Yes	n/a	n/a	n/a
Text Messaging Templates	n/a	Yes	n/a	n/a	n/a
Music
Headphone Jack (3.5mm)	-	-	Yes	Yes	-
Music Player	n/a	Yes	n/a	n/a	n/a
Stereo Speakers	-	Yes	-	-	-
Photo & Video
TV Output	-	Yes	-	-	-
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
BREW	n/a	Yes	n/a	n/a	n/a
Games	n/a	Yes	n/a	n/a	n/a
Voice
Headset Jack (2.5 mm)	n/a	-	n/a	n/a	n/a
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Palm Treo 800w	Samsung SCH-A990	ZTE Obsidian	ZTE Whirl	HP iPAQ hw6510 / hw6515
	X >	< X >	< X >	< X >	< X

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


Phone	Palm Treo 800w	Samsung SCH-A990	ZTE Obsidian	ZTE Whirl	HP iPAQ hw6510 / hw6515