Can you help me decide on exercise bike purchase?

Hello all. Hope you are having a fantastic day! I would like some help if possible. This is my first time posting in here so not sure what kind of response I will get but it has to be better than the help I got from my Facebook pals, LOL(no ill will, just many are older or have no clue and not on the same journey as I am).

Ok. So, I live in a smallish apartment now with my 2 sons. I already have a treadmill set up in my living room. I want an exercise bike but I fear there is no room. So I was looking into a compact, foldable, or mini cycle version. Also, since I am a single mom with no child support, my income is limited as well.

So here are my options:

https://www.amazon.ca/Impex-NS912-Marcy-Cardio-Cycle/dp/B0041GJ8XY/ref=sr_1_fkmr2_1?ie=UTF8&qid=1468866067&sr=8-1-fkmr2&keywords=compact+exercise+cycles

or

https://www.amazon.ca/North-American-Healthcare-Total-Exerciser/dp/B004FNISQ6/ref=pd_sim_200_2?ie=UTF8&dpID=41EagcMLO4L&dpSrc=sims&preST=_AC_UL160_SR160,160_&psc=1&refRID=YN5QHEDG5HM6CAF970NG

I guess what I need help with is deciding which one of these would be more stable for daily use, last longer, and have the best resistance to allow me to feel like I am getting a good enough work out to lose weight.

I do like the folding recumbent bikes(need back support as I have arthritis in my hip and back) but they are $200 for the cheapest.

If anyone has any experience with any of these types, please share with me. If you have any other ideas of similar equipment, I would love to hear.

Thank you all!

Melanie