I wasn't going to purchase this as well as the traditional tangle teezer, but I liked the original one that much that I needed one for my handbag!
The compact one is very similar to the original in terms of its functioning, de-tangling hair quickly without being damaging.
Main difference is the cap which clips in to the main brush. Its designed like that so to make sure the plastic bristles don't get damaged when you have it in your bag.
Another point to note is the size of it, it fits much better in the hand than the original. Above is the compact and below is the original
I bought the all black compact tangle teezer new from eBay for £10.50 and I would recommend it to people who brush their hair when out and about.
eBay Seller used: tangleteezerstore2