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Phone	HP iPAQ hw6510 / hw6515	Samsung Stratosphere / Galaxy Metrix 4G	ZTE Blade Vantage 2	Nokia 2285 / 2275	HP iPAQ 510 Voice Messenger
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	4" diag. 5 : 3	5" diag. 18 : 9	?	2" diag. 4 : 3
Display Resolution & Type	240 x 240 pixels LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) AMOLED	480 x 960 pixels (~215 ppi) LCD (TFT/TFD)	96 x 65 pixels	176 x 220 pixels (~141 ppi) LCD (TFT/TFD)
Display Refresh	?	60 Hz	60 Hz	?	?
Battery	1,200 mAh	?	2,050 mAh	850 mAh	1,100 mAh
Processor	312 MHz Intel XScale PXA272	1 GHz Samsung Cortex A8 Hummingbird	2 GHz MediaTek MT6761	?	200 MHz TI OMAP 850
RAM	?	?	2 GB	?	?
Storage	? raw hardware	? raw hardware	16 GB	? raw hardware	? raw hardware
Main Camera	1 megapixel	5 megapixel	5 megapixel	-	1 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	WVGA / 480p	720p HD	-	QCIF (176 x 144)
Front Camera	-	1 megapixel	2 megapixel	-	-
Weight	5.8 oz (164g)	5.8 oz (164g)	5.3 oz (150g)	3.49 oz (99g)	3.6 oz (102g)
Dimensions	4.65" x 2.8" x 0.71" (118 x 71 x 18 mm)	4.96" x 2.54" x 0.55" (126 x 65 x 14 mm)	5.4" x 2.7" x 0.41" (137 x 69 x 10.4 mm)	4.26" x 1.96" x 0.88" (108 x 50 x 22.4 mm)	4.21" x 1.91" x 0.64" (107 x 49 x 16.3 mm)
Form Factor	Slab	Slide	Slab	Slab	Slab
Platform / OS	Windows Mobile Professional	Android	Android	(proprietary)	Windows Mobile Standard
Network Bands	GSM: 850, 900, 1800, 1900	4G LTE: 13 CDMA: 850, 1900 *	4G LTE: 2, 4, 5, 13 WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	GSM: 850, 900, 1800, 1900
Data Technology	EDGE	LTE (Cat 3)	LTE (Cat 4)	1xRTT	EDGE
Features
Flashlight	-	-	Yes	-	-
GPS / Location	n/a	n/a	n/a	Yes *	n/a
Accessibility
Hearing Aid Compatible	-	Yes M4 (very compatible)	Yes M4, T3 (mostly tele-coil compatible)	-	-
Multiple Languages	n/a	n/a	n/a	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	-
Alerts
Ringer Profiles	Yes	-	-	-	Yes
Connectivity
Bluetooth	Yes	Yes	Yes	-	Yes
Infrared (IR)	Yes	-	-	-	-
Mobile Hotspot	n/a	n/a	n/a	-	n/a
USB	Yes	Yes	Yes Micro-USB	Yes	Yes Mini-USB
Wi-Fi	-	Yes 4 (802.11 a,b,g,n)	Yes 4 (802.11 b,g,n)	-	Yes 802.11 b,g
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	Yes	n/a
Customization
Changeable Body Plates	-	-	-	Yes	-
Custom Graphics	n/a	n/a	n/a	-	n/a
Custom Ringtones	n/a	n/a	n/a	Yes	n/a
Real-Music Ringers	n/a	n/a	n/a	-	n/a
Data & Network
Data Tethering	n/a	n/a	n/a	Yes	n/a
WAP / Web Browser	n/a	n/a	n/a	Yes	n/a
Input
Predictive Text Entry	n/a	n/a	n/a	Yes	n/a
Side Keys	-	Yes	Yes	-	Yes
Text Keyboard, Hardware	Yes	Yes	-	-	-
Touch Screen	Yes	Yes Capacitive	Yes Capacitive	-	-
Memory
Memory Card Slot	Yes	Yes	Yes	-	Yes
Messaging
Email Client	n/a	n/a	n/a	-	n/a
EMS / Picture Messaging	n/a	n/a	n/a	Yes	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	Yes	n/a
Music
Headphone Jack (3.5mm)	-	Yes	Yes	-	-
Music Player	n/a	n/a	n/a	-	n/a
Photo & Video
DLNA	-	Yes	-	-	-
Productivity
Alarm	n/a	n/a	n/a	Yes	n/a
Calculator	n/a	n/a	n/a	Yes	n/a
Calendar	n/a	n/a	n/a	Yes	n/a
To-Do List	n/a	n/a	n/a	Yes	n/a
Voice Memo	n/a	n/a	n/a	Yes	n/a
Software
Games	n/a	n/a	n/a	Yes	n/a
Java (J2ME)	n/a	n/a	n/a	Yes	n/a
Voice
HD Voice	-	-	Yes	-	-
Headset Jack (2.5 mm)	n/a	n/a	n/a	Yes	n/a
Speaker Phone	Yes	Yes	Yes	-	Yes
	* Some versions only
	HP iPAQ hw6510 / hw6515	Samsung Stratosphere / Galaxy Metrix 4G	ZTE Blade Vantage 2	Nokia 2285 / 2275	HP iPAQ 510 Voice Messenger
	X >	< X >	< X >	< X >	< X

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


Phone	HP iPAQ hw6510 / hw6515	Samsung Stratosphere / Galaxy Metrix 4G	ZTE Blade Vantage 2	Nokia 2285 / 2275	HP iPAQ 510 Voice Messenger