Why is there different dialer icons?

Hey guys, I just got my new Note 5 and now I am confused about the icons in the dialer. I thought the Note 5 had the round send button and different button to the left. I thought I had the new icons when I first powered on the phone as well but didn't pay that close of attention to it. I checked out the theme store and installed the material dark theme. I removed it and that is when I noticed the icons didn't look like what I was expecting as shown in the attachment. I even did a factory reset and still did not get the round icon back. Looking at video reviews of the Note 5, I see some have the round icon and others have the same as what my attachment shows. Am I missing something here? Is there a way to get the round icon and the voicemail icon next to it?
Attachment 3458426

Thanks for any input!

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