I love my Dior Lip Oil! I recently lost my favorite one and instead of running out and spending $40 on a new one I decided to give these a try to see if they compare. I’ll say I was not disappointed. 
The NYX version has a similar applicator but I will say, it does not pick up as much product so I have to go in 2-3 times in order to get the desired amount of product on my lips. But other than that the shades are beautiful, the wear is comfy and they last a long time! 
The Ulta Beauty version surprised me! The applicator is much thinner but it gave me a lot more product in one dip! The wear felt more luxurious than the NYX. I would say be careful if your lips are sensitive because they are juice infused and gave me a little tingle when I first applied it. 
Overall, these are great dupes for a great price! I’ll definitely keep this in rotation for regular use but I’ll be repurchasing my Dior for when I want something more elevated!