Durability

The Vibes are the most durable in-ears on the market today by a large margin. The fact that the shell is made entirely out of aluminum makes them extremely hard to break. These are the first in-ears that I would consider safe to carry around in your pocket along with all of your other pocket gear. Besides the immensely tough body the way the cable is mounted to the earphones is durable and will help to avoid the cord being bent and broken by normal use.

Overall the V-MODA Vibes are easier to use and maintain because you don't have to carry around a protective bag for them which I find very appealing.

Comfort

Wearing comfort with IEMs is quite hard to judge objectively because each ear is unique. What I can recommend is that you try them before you buy them. It's the only way to be perfectly sure that the fit is good. The V-MODA Vibes are quite easy to insert and you get three different sized pairs of ear tips, however, you don't get foam tips like with, e.g. Ultimate Ears IEMs. The silicon tips supplied with the earphones are of a good quality, but they are quite thin so they don't cancel out that much noise compared to similar solutions from other companies. Despite being thinner they are actually quite pleasant to wear and I didn't have any problems with soar ears during my tests even though I used the in-ears almost constantly. If you are new to IEMs there will probably be an acclimatization period where you have to get used to wearing them.