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Specifications

Phone	Samsung Juke U470	Palm Centro 690 (CDMA)	HTC Shadow
Current U.S. Carriers	(none)	Sprint	(none)
Global Availability	Released	Released	Released
Avg. User Rating	3.42 User Reviews	4.08 User Reviews	3.59 User Reviews
Add Phone	Remove	Remove	Remove
Modes	CDMA 850 CDMA 1900	CDMA 850 CDMA 1900	GSM 850 GSM 900 GSM 1800 GSM 1900
Weight	2.82 oz (80g)	4.2 oz (119g)	5.29 oz (150g)
Dimensions	3.82" x 1.18" x 0.83" (97 x 30 x 21 mm)	4.22" x 2.11" x 0.73" (107 x 54 x 18.5 mm)	4.06" x 2.09" x 0.59" (103 x 53 x 15 mm)
Form Factor	Swivel	Bar	Slide
Antenna	Internal	Internal	Internal
Battery Life	Talk: 3.5 hr Standby: 250 hr (10.4 days)	Talk: 3.5 hr Standby: 300 hr (12.5 days)	Talk: 5 hr Standby: 160 hr (6.7 days)
Display	LCD (Color TFT/TFD) 128 x 220 pixels Colors: 262,144 (18-bit)	LCD (Color TFT/TFD) 320 x 320 pixels Colors: 65,536 (16-bit)	LCD (Color TFT/TFD) 240 x 320 pixels 2.6" Colors: 65,536 (16-bit)
Platform / OS	(proprietary)	Palm OS	Windows Mobile Standard (Smartphone)
Memory	2 GB	64 MB	144 MB
Phone Book Capacity	500	shared memory	shared memory
	Samsung Juke U470	Palm Centro 690 (CDMA)	HTC Shadow
Features
GPS / Location	Yes	Yes	-
Accessibility
Adjustable Text Size	Yes	Yes	-
Digital TTY/TDD	Yes	Yes	-
Hearing Aid Compatible	Yes M3 (mostly compatible)	-	-
Multiple Languages	Yes	-	-
Alerts
Polyphonic Ringtones	Yes	Yes	-
Ringer Profiles	-	-	Yes
Vibrate	Yes	Yes	Yes
Connectivity
Bluetooth	Yes	Yes	Yes
Infrared (IR)	-	Yes	-
PC Sync	-	Yes	Yes
USB	Yes	Yes	Yes
Wi-Fi	-	-	Yes
Contacts
Multiple Numbers per Name	Yes	Yes	Yes
Picture ID	Yes	Yes	Yes
Ringer ID	Yes	Yes	Yes
Voice Dialing	Yes	-	Yes
Customization
Custom Graphics	Yes	Yes	Yes
Custom Ringtones	Yes	Yes	Yes
Real-Music Ringers	Yes	Yes	Yes
Data & Network
Data Tethering	-	Yes	Yes
External Antenna Jack	-	Yes	-
Flight Mode	Yes	Yes	-
High-Speed Data	Yes 1xRTT	Yes 1xEV-DO r0	Yes EDGE
WAP / Web Browser	-	Yes	Yes
Input
Key Lock Switch	Yes	-	-
Predictive Text Entry	Yes	-	Yes
Side Keys	Yes	Yes	Yes
Text Keyboard	-	Yes QWERTY	Yes 20-Key
Touch Screen	-	Yes Stylus	-
Memory
Memory Card Slot	-	Yes microSD (TransFlash)	Yes microSD (TransFlash)
Messaging
Email Client	-	Yes	Yes
Instant Messaging	-	Yes	Yes
MMS	Yes	Yes	Yes
Text Messaging (SMS)	Yes	Yes	Yes
Text Messaging Templates	Yes	Yes	Yes
Music
Music Player	Yes	Yes	Yes
Photo & Video
Camera	Yes VGA (640 x 480)	Yes 1+ megapixel	Yes 2+ megapixel
Streaming Video	-	Yes	Yes
Video Capture	-	Yes	Yes
Productivity
Alarm	Yes	Yes	Yes
Calculator	Yes	Yes	Yes
Calendar	Yes	Yes	Yes
To-Do List	-	Yes	Yes
Voice Memo	-	Yes	Yes
Software
BREW	Yes	-	-
Games	Yes	Yes	Yes
Java (J2ME)	-	-	Yes
Voice
Headset Jack (2.5 mm)	Yes	Yes	-
Speaker Phone	Yes	Yes	Yes
	Samsung Juke U470	Palm Centro 690 (CDMA)	HTC Shadow
Add Phone	Remove	Remove	Remove

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