Did you already purchase? I've owned both.
6160 - longer battery life but larger and heavier.
8260 - smaller but much less battery life, also the buttons take some getting used to as they are just a touch closer together.
If buying right now I'd probably go with the 8260 again as my wife can dump it in her purse and it fits into your pocket w/o taking up a ton of space. It also looks cool. :smile:
"Dave, my mind is going. I can feel it. My mind is going. There is no question about it."