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Phone	Palm Treo 650 (CDMA)	Motorola E815 / E816 Hollywood	Samsung SPH-A660 / VI660	BlackBerry Curve 9370	HTC EVO Design 4G / Hero S (CDMA)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	?	?	2.4" diag. 4 : 3	4" diag. 16 : 9
Display Resolution & Type	320 x 320 pixels LCD (TFT/TFD)	176 x 220 pixels LCD (TFT/TFD)	128 x 160 pixels LCD (Color)	480 x 360 pixels (~246 ppi) LCD (TFT/TFD)	540 x 960 pixels (~275 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	?	60 Hz
Battery	?	1,030 mAh	?	1,000 mAh	1,520 mAh
Processor	312 MHz Intel XScale PXA270	?	?	800 MHz Marvell	1.2 GHz Qualcomm Snapdragon S2 MSM8655
RAM	?	?	?	?	768 MB
Storage	? raw hardware	? raw hardware	? raw hardware	1 GB	4 GB
Main Camera	Yes	1 megapixel	-	5 megapixel	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	QVGA (320 x 240)	?	-	VGA (640 x 480)	720p HD
Front Camera	-	-	-	-	1 megapixel
Weight	6.3 oz (179g)	4.6 oz (130g)	3.54 oz (100g)	3.49 oz (99g)	5.22 oz (148g)
Dimensions	4.4" x 2.3" x 0.9" (112 x 58 x 22.9 mm)	3.71" x 1.95" x 1.01" (94 x 50 x 25.7 mm)	3.3" x 1.8" x 0.87" (84 x 46 x 22.1 mm)	4.29" x 2.36" x 0.43" (109 x 60 x 10.9 mm)	4.78" x 2.44" x 0.46" (122 x 62 x 11.8 mm)
Form Factor	Slab	Clamshell	Clamshell	Slab	Slab
Platform / OS	Palm OS	(proprietary)	(proprietary)	BlackBerry OS	Android
Network Bands	CDMA: 850, 1900	CDMA: 850, 1900	CDMA: 850, 1900 AMPS: 850	CDMA: 850, 1900 GSM: 850, 900, 1800, 1900	4G WiMAX: 41 WCDMA: 1, 8 CDMA: 800, 850, 1900 GSM: 850, 1900 *
Data Technology	1xRTT	EVDO r0	1xRTT	EVDO rA	WiMAX
Features
Flashlight	-	-	-	-	Yes
GPS / Location	n/a	Yes	Yes	n/a	n/a
Accessibility
Adjustable Text Size	n/a	-	-	n/a	n/a
Hearing Aid Compatible	-	Yes M4, T4 (very tele-coil compatible)	-	Yes M3 (mostly compatible)	Yes M4, T4 (very tele-coil compatible)
Multiple Languages	n/a	Yes	Yes	n/a	n/a
TTY/TDD (Digital)	-	Yes	Yes	Yes	Yes
Alerts
Extra Display	-	Yes	-	-	-
Ringer Profiles	-	-	-	Yes	-
Connectivity
Bluetooth	Yes	Yes	-	Yes	Yes
Infrared (IR)	Yes	-	-	-	-
Mobile Hotspot	n/a	-	-	n/a	n/a
NFC	-	-	-	Yes	-
USB	-	Yes	-	Yes Micro-USB	Yes Micro-USB
Wi-Fi	-	-	-	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	n/a	Yes	Yes	n/a	n/a
Ringer ID	n/a	Yes	Yes	n/a	n/a
Voice Dialing	n/a	Yes	Yes	n/a	n/a
Customization
Custom Graphics	n/a	Yes	Yes	n/a	n/a
Custom Ringtones	n/a	Yes	Yes	n/a	n/a
Real-Music Ringers	n/a	Yes	-	n/a	n/a
Data & Network
Data Tethering	n/a	Yes	Yes	n/a	n/a
External Antenna Jack	n/a	Yes	-	n/a	n/a
WAP / Web Browser	n/a	Yes	Yes	n/a	n/a
Input
Predictive Text Entry	n/a	Yes	Yes	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	Yes	-	-	Yes	-
Touch Screen	Yes	-	-	-	Yes Capacitive
Memory
Memory Card Slot	Yes	Yes	-	Yes	Yes
Messaging
Email Client	n/a	-	-	n/a	n/a
EMS / Picture Messaging	n/a	Yes	-	n/a	n/a
Instant Messaging	n/a	-	-	n/a	n/a
MMS	n/a	Yes	-	n/a	n/a
Text Messaging Templates	n/a	Yes	-	n/a	n/a
Music
FM Radio	-	-	-	-	Yes
Headphone Jack (3.5mm)	-	-	-	Yes	Yes
Music Player	n/a	Yes	-	n/a	n/a
Photo & Video
DLNA	-	-	-	-	Yes
Productivity
Alarm	n/a	Yes	Yes	n/a	n/a
Calculator	n/a	Yes	Yes	n/a	n/a
Calendar	n/a	Yes	Yes	n/a	n/a
To-Do List	n/a	-	Yes	n/a	n/a
Voice Memo	n/a	Yes	Yes	n/a	n/a
Software
BREW	n/a	Yes	-	n/a	n/a
Games	n/a	Yes	Yes	n/a	n/a
Java (J2ME)	n/a	-	Yes	n/a	n/a
Voice
Headset Jack (2.5 mm)	n/a	Yes	Yes	n/a	n/a
Speaker Phone	Yes	Yes	-	Yes	Yes
	Palm Treo 650 (CDMA)	Motorola E815 / E816 Hollywood	Samsung SPH-A660 / VI660	BlackBerry Curve 9370	HTC EVO Design 4G / Hero S (CDMA)
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NOTE: Differences are highlighted with bold / black text for visual clarity only.


Phone	Palm Treo 650 (CDMA)	Motorola E815 / E816 Hollywood	Samsung SPH-A660 / VI660	BlackBerry Curve 9370	HTC EVO Design 4G / Hero S (CDMA)