My baby just turned 4 months. She has yet to learn how to sit unassisted but I would like to get her something that can occupy her and also free up time for my helper. Her current rocker is getting too small (the ingenuity) and I don't want her to constantly just be laying down on the play mat. I'm thinking of buying some of the following for her, which ones are recommended? - bumbo seat - jumperoo - play yard - baby bjorn bouncer (read that she can sit in it till age 2?)

Jumperoo is for baby to jump, Exersaucer is the same as jumperoo, just that Exersaucer can't jump. Bumbo seat life span is short, u can start with high chair instead. If ikea one, u can buy the cushion together, if not u can put pillow behind instead. Play yard, it's really good to prevent baby from climbing, crawling to dangerous area. If u have more space, those 6 panels is good, bigger space to roam around freely. Baby bjorn bouncer more for laying down? Not recommend as it's don't really sit straight instead. Fisherprice rocker is better, can sit straight with going down, but baby bjorn is like yao lan, the more weight, the more down it is. As for walker, got 2 saying, some baby didn't use walker and start to walk early too, if got jumperoo or Exersaucer don't need walker. Anyway all 3 of them is equally big and work about the same, lifespan is about till 1 year old +-, choose 1 will do, of course if got budget, can get more.