
So, let’s go into detail about the key features of each one to help you decide. Since those models are no longer being sold, the terms may be used interchangeably.) Key Features (Note: Even though they both have a ‘plus’ in their names, these two breast pumps are the upgraded version of the older S1 and S2 models. It can be a convenient option for working moms who need to pump at work but can’t plug one in at their cubicle for obvious reasons.īut because of the batteries, the Spectra S1 breast pump costs more and weighs slightly more than the Spectra S2. Quite handy because of its portability, the Spectra S1 has batteries that can last up to 3 hours. (Note: These prices are from the official Spectra Baby USA website.) The Spectra S1 comes in blue/white combination, while the Spectra S2 comes in a pink/white combination.The Spectra S1 weighs a bit more (2.42 lbs), while the Spectra S2 weighs a bit less (2.0 lbs).The Spectra S1 costs more, while the Spectra S2 is a bit more affordable.

The Spectra S1 is portable, but the Spectra S2 isn’t.

