I bought the H800 to replace an H700 I had lost.  The sound quality was very good but the comfort and ergonomics were a big step back. I tried the H800 (thinking it would be better) and I didn't care for it because it was uncomfortable. First of all the H800 is a lot bigger than the H700 which you can't tell from the pictures. The H800 hangs on the ear but has a little nub that goes in the ear which I found annoying. The function button on the H700/H710 is well placed over the center of the ear so when you press it the headset doesn't move. On the H800 the button is shifted toward the back and when I tried to press the button, the headset kept moving it kept falling off and was hard to press.

If you don't flip the little lock switch on the H800 the slider will open easily and often when it in your pocket or purse.  And then when you try to use the phone with out the headset no one will be able to hear you until you figure out that the headset is on.

Motorola is going to the micro USB for newer headsets but that is not so bad because fr a few bucks you can get an adapter to convert the mini USB to micro.  What Motorola did wrong with the H800 is to place the power connector on the hinge for the earhook.  This is an awkward location compared to having it on the back like the H700/H710.  To make it even worse, because the connector rests against your skin they put a flimsy plastic door over the connector.  Every time I tried to charge the headset I was expecting the door to break.

I use my headset a lot so I need one that is comfortable and convenient to use.  The H710 is a much better alternative.  It has all the great features of the original H700 and made it better (see my review).

Avoid this headset and go for the H710!!
I bought the H800 to replace an H700 I had lost. The sound quality was very good but the comfort and ergonomics were a big step back. I tried the H800 (thinking it would be better) and I didn't care for it because it was uncomfortable. First of all the H800 is a lot bigger than the H700 which you can't tell from the pictures. The H800 hangs on the ear but has a little nub that goes in the ear which I found annoying. The function button on the H700/H710 is well placed over the center of the ear so when you press it the headset doesn't move. On the H800 the button is shifted toward the back and when I tried to press the button, the headset kept moving it kept falling off and was hard to press. If you don't flip the little lock switch on the H800 the slider will open easily and often when it in your pocket or purse. And then when you try to use the phone with out the headset no one will be able to hear you until you figure out that the headset is on. Motorola is going to the micro USB for newer headsets but that is not so bad because fr a few bucks you can get an adapter to convert the mini USB to micro. What Motorola did wrong with the H800 is to place the power connector on the hinge for the earhook. This is an awkward location compared to having it on the back like the H700/H710. To make it even worse, because the connector rests against your skin they put a flimsy plastic door over the connector. Every time I tried to charge the headset I was expecting the door to break. I use my headset a lot so I need one that is comfortable and convenient to use. The H710 is a much better alternative. It has all the great features of the original H700 and made it better (see my review). Avoid this headset and go for the H710!!