Some of them are not designed correctly for newborns, while others can last from newborn infant stage up throughout their first year of life. (earlymomentsmatter.org)
The robustness what i have seen with iPad 2 is just awesome and Playbook in infant stages needs to grow up. (berryreview.com)
The Carrier One can be worn in the front or back, and from infant stage and beyond — no infant insert needed! (blog.guguguru.com)