Does the Sena Ultraslim mark the antenna?

they have them at the apple store, unless you want a different color than black

wish i can answer your question, but i use lucky lab wraps to protect the band...ultraslim case still works great with the wraps

Apple bumper still the best !!

Had one for my iPhone 4 and it left no marks at all
The leather softens after a week or two.

it actually left black marks on my side skins, so im not sure if it would leave those marks on the actual metal .

I am not sure but I had a SENA case on my palm years ago and it took of the paint every place that the stitching touched the phone.

Ive had 2 of those leather pouch, and i can confirm that they DO leave marks!
They leave marks on your screen ( at the stitches on top ) by the speaker.
And if you tend to squeeze your iPhone while trying to get it out it even leaves marks on the antenna

I got mine a week ago and I've had it on ever since. I've had absolutely no problems with it, and I absolutely love the case! Definitely one of my favorites by far!

I used one on my iPhone 4 and it did leave small scratches on the band from the inside stitches the case has. Of course they wont be that visible, u really have to focus in to see them. Not only that but the stitches that are on top can also mark up the front and back glass.

I was using this case for months on my cdma iphone 4 before getting the vapor pro white edition , i absolutely love this case, but it did leave very faint whitish streaks on both sides of the phone on the stainless steel antenna. They weren't scratches, and they weren't black like the case, so it was weird, but they were barely noticeable, so i didn't care. I did not have any problems with the case making marks or streaks on the screens at all.

It almost seemed like they were just wear marks like taking off just a bit of the finishing of the stainless steel where they hit the most when removing the phone from the case. I was pretty rough with breaking the case in so I bet that's when it happened. If you let the case break itself in, I bet it wouldn't happen... i dunno...