My Motorola H850 was lost, so I've tried three of the latest & greatest headsets, here's my review...

	Plantronics Discovery 640E	Motorola H700	LG HBM-730
Pictures
Online Price	$65 @ PriceGrabber.com	$66 @ PriceGrabber.com	$63 @ PriceGrabber.com
CNET Review	8.0 Consumer	8.0 Editor, 5.8 Consumer	n/a
Other Reviews	Amazon.com	Amazon.com MobileTechReview	Apartment 305
While Charging	Red light	Red light	Red light
Claimed Talk Time	5 hrs	6 hrs	4 hrs
Claimed Standby Time	70 hrs	200 hrs	150 hrs
After Charging	No indication	Green light	No indication
On/Off	Press button	Flip boom (or press button)	Press button
Charging Comments	Uses an docking sleeve to charge	Uses standard USB type connector	You must remove a little dust cover
Unique Features	Can get an extra 10 hours by using the included AAA charger	Had a flip boom to answer and turn on	Very tiny
How Does it Stay Up?	Gel ear insert (3 sizes)	Over the ear clip	Light over-ear and light in-ear (both required)
Speaker Design	Soft gel ear insert (3 sizes)	On/Over ear design	Simple ear bud (like ear bud headphones)
Speaker Quality	Clear, even at high volume	Clear, but distorts at high volume	Not as clear as the others, sounds "small"
Microphone Quality	Loudest	Strong	Medium (not as loud as the others)
Usage Notes	Feels like the ear-piece is going to fall out, but it hasn't yet.	Can't just flip it open to answer a call.	The indicator LED is right under the button so you can't see when you're using the button. A pain for turning it on or off.
The "Mom" Test	Best audio quality!	"It sounds like you're off in electronic land."	Sounds muffled
CONCLUSION My Review Comments	This is my favorite and the one I ended up keeping!  I like the small footprint and in-ear design for better audio and comfort.  If you don't mind the ear bud feel, this is a good choice.  It still hasn't fallen out once yet in the last month, but I wouldn't push it by going jogging with it.	A good option if you like an ear clip.  It did not answer the phone quickly when turned on by opening the flip boom.  Probably works best with a Motorola phone.	It's small.  That's about it.  Real small.  Nothing fancy, poorer audio quality, and a few small design inconveniences make this an easy 'no'.

Hope this helps someone out there...