Spectra S2 Plus vs Spectra S1 Plus

Ashley

I am currently 34 wks with my second baby and plan on breastfeeding and pumping. My insurance covers 100% of the Spectra S2 Plus or I can upgrade to the S1 for $75 out of pocket. My question is, which is better(preferred)? Is the S1 worth the upgrade? What exactly is the difference? I’ve really only noticed the S1 is rechargeable.

Also, if you have any suggestions on a breast pump bag to keep everything together?

Thanks in advance ladies!