<prompt> Human: What would be the downside of doing that? I wouldnt have to wait a year to be able to withdraw, and if Im not mistaken, Im taxed on interest either way.  <response>: Thats a completely different animal. A bond ETF can lose value if interest rates go up. I bonds can never lose value although yield can drop to 0.If youre comfortable with a little more risk then you can consider a bond ETF, but if youre just looking to keep up with inflation then I bonds are probably a little better than a savings account. 