Size comparison is close--overall length is greater with the SONY, but the Motorola has more girth.
You'll see below how they compair. Also, Ive included a closer view of the earpiece so everyone can see how it fits into the ear. I was disappointed at first when I saw that the earpiece was like this, but only because I had an around the neck headset before and it sat in my ear in a manner that made the boom mic stick up in the air. Which leads to another major benefit of this headset; the earpiece pivots so the boom can be positioned on the face where the wearer would actually WANT it to be, while still allowing the earpiece to fit comfortably in the ear. The loop that goes around the ear can also be moulded slightly to conform to your ear better, and 2 sizes are included.
If you can't already tell, I am MORE than happy with this device, and Im usually really damn picky!
