Spectra S1 Plus vs Medela Pump in Style
Two of the most common insurance-covered double electric pumps.
The short version
The Spectra S1 has a built-in rechargeable battery and a closed system, and many users find it gentler and quieter. Medela has the widest parts availability and the longest track record, which matters when you need a replacement valve at short notice. Both are commonly covered by insurance. Check what your plan covers first, because that often decides it.
At a glance
| Spectra S1 Plus | Medela Pump in Style Pro+ | |
|---|---|---|
| Battery | Built-in rechargeable | Model dependent |
| System | Closed | Closed on current models |
| Noise | Generally quieter | Louder |
| Suction adjustment | Separate cycle and strength | Preset patterns |
| Parts availability | Good | Widest, sold in most shops |
| Insurance | Commonly covered | Commonly covered |
Choose the Spectra S1 Plus if…
You want to pump away from an outlet, comfort is a priority, or you want independent control over suction strength and cycle speed. The battery alone changes how usable a pump is in real life with a baby.
Choose the Medela Pump in Style Pro+ if…
You value being able to buy replacement parts almost anywhere, or your insurance covers this one outright. Parts wear out and pumping does not pause for shipping times.
Common questions
Will insurance cover a breast pump?
In the US, most plans are required to cover one, though which models and through which supplier varies a great deal. Call your insurer before buying, because paying out of pocket for something you could have had covered is a common and avoidable mistake.
What is a closed system and does it matter?
A closed system has a barrier preventing milk from entering the tubing and motor. It matters for hygiene and it is why closed-system pumps should not be bought second hand or shared, since the motor cannot be sterilised.
Does flange size matter?
More than the pump itself, in many cases. A poorly fitting flange causes pain and reduces output, and the size that comes in the box fits only some people. If pumping hurts, size is the first thing to check.
Comparison based on published manufacturer specifications, published safety standards and the general consensus of owner reports. We have not tested these products side by side, and nothing here is medical or safety advice. Confirm current specifications and fit for your own vehicle or situation before buying. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.