I've used Fiskars Trimmers for years and I have both of these. Both cut the same, but the only difference would be the larger base that helps to hold the paper flatter and gives you more measurement area. I use my larger cutter for my table and the smaller one to be more mobile.
I have one of the fiskars rotary trimmers, and one of the I blade style fiskars trimmers, they were both given to me as gifts. I can't stand the rotary trimmer. i'm noticing on a regular basis, even after changing to a brand new blade that with the rotary trimmer, I can't seem to cut through the paper all the way like I can with the I blade style. i'll be purchasing another 12 inch iblade and blessing my friend who doesn't have a trimmer with the rotary. I wouldn't recommend anyone purchase a rotary at all!
I don't have either one of these. I didn't select that style because the swing arm does not look that stable to me. I would read the reviews on that.
I have a large blade style F. It folds up, but when it is folded out it has a very large surface and is very stable. Because it is a F style blade, you can get different blades like a deckle blade or perforating blade, etc. Keep in mind that both the blade and the CUT BAR have to be replaced. I get the two sided because you can flip it around and then over so it has four cutting surfaces. I'm not tied to the fact that it folds except this does make it store easier. It also has a LED light which I really see no point in.
I also have the small 9 inch bypass which is very sharp titanium guillotine type mechanism. I like have this right next to me because I can trim photos and mats and small things without going to the larger one.
Happy with both of them. I'm not sure I would be satisfied having just one. One big heavy that will cut 12x12 and a smaller lighter handy one seems to work for me.
Thanks for the input. I thought the first one looked heavier too, but there's no real distinct differences listed. I've got a small trimmer for up to 6", I just need a decent 12" because I'm on my third, and junk. So, I've decided Fiskars and I want a rotary trimmer, but I'm deciding between these "lighter" models and the larger Fiskars Procision.
I have the top one and love it! I don't have problems with the blade not cutting all the way through. It did take a little practice to get used to as you have to press down on it as you slide the blade, but it was quick to figure out. I would totally recommend it.
The difference I found (I was looking in person) was that the top one has a wider base to place paper, as well as a wider swing arm (which I preferred). The bottom one has a narrower base, as well as a narrower swing arm.