[DavidNM]

I've had Mugen batteries for several devices now. I keep going from the thing Samsung battery back to the Mugen. Yea, it adds about 1/2 inch to the thickness and an ounce or two to the weight - but I like to put my Omnia in the pocket of my t-shirt and listen to PodCasts or audiobooks during the day -- and with the thin batter I end up changing batteries a couple of times a day - and trying to plug into power whenever and wherever I can including the car. It's a pain in the behind.

I keep a spare charger going so that if my Mugen wears out I can put in a smaller battery still using the regular Mugin cover and get a charge.

I think it depends upon how you use your Omnia - but this is a quality battery.