Breast pump choices?

I was pretty set on the Spectra S1 model due to its rechargeable battery. However I just saw the Lansinoh Smartpump, which is rechargeable as well and has an integrated app that can tell you how much you pump, etc.

Anyone have experience with both or either? Or recommend an entirely different one?

I need to be able to unplug to do other stuff while pumping, plus I plan on returning to work after 12weeks. Thanks