The Inimitable Intense Sophistique mascara is a part of the Chanel Sophisticated Eye collection in the US. Here's my comparison review of the two mascaras - a sample of Inimitable Intense Sophistique mascara and my regular Inimitable mascara.
This is a sample tube that I got with my a purchase from Chanel and is not exactly what the actual product looks like. However, I am assuming the brush and the mascara inside the tube are the same :D
I have the black shade - Noir (10) - and it's not the waterproof version. I never use waterproof makeup if I can help it. The wand has lots of short stubby brustles arranged in neat rows - helps coat the lashes evenly and provides perfect separation between the lashes. No clumps, better definition. That's the theory. Reality though, it's hit and miss - I have to pay attention while applying the mascara because it is very easy to get the lashes clumped together. I will give the formula a benefit of doubt, since it was a sample bottle, but I find it a bit too thick for my lashes. It does give volume and an appearance of length, and is perhaps more suitable for people who have less thick lashes.
This is my older, full-size mascara. While Chanel claims the newer Inimitable mascaras are an improvement on these, I personally find the older ones better. The wand is the same - short bristles arranged very close together. The formula is a little less thick and it seems better at giving clump-free application at least on my lashes.
On my eyes - Chanel Inimitable Intense Sophistique Mascara (one coat):
Overall, I prefer the older version of the Inimitable mascaras to the newer release. My favorite mascara continues to be YSL Faux Cils. I really am not a fan of the Chanel mascaras (the Sublime de Chanel mascara seemed nice, though). Without exception though, all the Chanel mascaras I have tried give a bit of curl to the lashes, even without using a curler. The wands and bristles are really nice at combing out the lashes, but I find the formula a bit thick and easy to clump if I am not careful while applying. No flaking, smudging. If you have thinner/sparser lashes, these might definitely be your favorites.