Spectra S2 Plus Review

Best Plug-In Double Pump

Overall74

Check Latest PricesSee Customer Reviews & Feedback →

Spectra S2 Plus

Comfort & ergonomics8/10

Extraction efficiency & output9/10

Mobility & discretion3/10

Usability & cleaning9/10

Pros

• Comfort 8 and efficiency 9, the same scores as the S1 Plus
• Same 12 suction levels as the S1
• Usually cheaper than the S1 Plus

Cons

• No internal battery, so every session happens next to a socket

Our Verdict: Spectra S2 Plus

The Spectra S2 Plus scored 74 out of 100 across the four criteria we score every breast pump on, and took Best Plug-In Double Pump in our breast pump guide.

What earns it that award: Comfort 8 and efficiency 9, the same scores as the S1 Plus.

The honest limit, and the reason it is not higher: No internal battery, so every session happens next to a socket.

Our Analysis, Comparisons and Test Results

Comfort & ergonomics

Eight, identical to the S1 Plus, which is what you would expect: the same flange set, the same twelve suction levels, the same shape against the body. The 24mm flanges it ships with will be too large for most people and inserts are the fix, so budget for them at purchase rather than treating poor comfort as a fault in the motor. If sizing does not resolve soreness, that is a conversation for a lactation consultant rather than a reason to buy a different pump. Mid-table against the Momcozy M5's nine, and the sizing caveat is the only reason it is not higher.

Extraction efficiency & output

Nine, joint best in this guide with the S1 Plus and a full point clear of every wearable here. The two Spectras share a motor and twelve suction levels, so the output story is the same one: this is the end of the market where a double electric earns its place. The only difference between the pair is power. This one runs from the mains with no internal battery, so the nine arrives on condition that you are sitting beside a socket. If that describes your pumping, you get the guide's top output score without paying for a battery you will never use.

Mobility & discretion

Three, the lowest mobility score in this guide, and the single number that separates this pump from the S1 Plus. There is no internal battery, so every session happens within a cable's reach of a socket: not in a car, not on a train, and not in a room where the only outlet is behind the bed. The motor is a manageable 2.5 lb and sits on a bedside table without complaint, which is the use it was built for. If you need to pump anywhere other than at home, the S1 Plus is this same pump with the battery fitted, and it scores seven and a half here for exactly that reason.

Usability & cleaning

Nine, bettered only by the two manual pumps, and earned the same way the S1 Plus earns it: backflow protection keeps milk out of the tubing, so there is no tubing to wash and nothing hanging up to dry overnight. Few parts touch milk and they go back together one way, which matters more at the end of a long day than any feature on the box. The valves and membranes are thin and tear if you are rough with them, so buy spares with the pump rather than finding a split one on a weekday morning. Identical parts to the S1, identical wash-up.

Should You Buy the Spectra S2 Plus?

Buy it for this: Comfort 8 and efficiency 9, the same scores as the S1 Plus. Same 12 suction levels as the S1.

Go in knowing this: No internal battery, so every session happens next to a socket.

The same four criteria applied to every breast pump in this guide. That makes the comparison fair, and it makes the choice yours: pick for the use you cannot avoid, not the one you aspire to.

What Other Breastfeeding Should You Consider?

We scored the Spectra S2 Plus against 11 other breast pumps on the same criteria. The three closest on score:

Specifications

Conclusion: Spectra S2 Plus

The Spectra S2 Plus took Best Plug-In Double Pump in our guide, and it is worth buying if that is what you need most. Its Mobility & discretion score, 3 out of ten, is the one to weigh against that.

For the side-by-side, and for the breast pump we would buy instead, read Best Breast Pump 2026: 12 Pumps Tested and Scored.

Tested against 11 other breastfeeding in Best Breast Pump 2026: 12 Pumps Tested and Scored. See all breastfeeding guides and reviews.