Medela Freestyle Flex Vs Spectra s9 – Which Portable Breast Pump is Best?

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Are you trying to figure out the difference between the Spectra S9 and Medela Freestyle Flex? Don’t worry! We will be helping you by presenting a comparison between Medela Freestyle Flex vs Spectra S9, two of the best portable pumps on the market in 2021. Read on to know more!

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If you are a working mom or trying to increase your milk supply, the last place you want to be is attached to an outlet on a wall for hours at a time pumping milk for your little one, while everyone else sleeps.

Ever get the feeling like you are chained to the wall outlet and feel the pressure building from that mountain of laundry or the dirty dishes in the sink, waiting in the corner of your eye?

Portable breast pumps like the Medela Freestyle Flex and Spectra S9 Plus are very convenient to use and a great alternative or stand by for hospital-grade breast pumps like the Spectra S2, which need an outlet.

The wonderful invention of portable pumps opens your world up to new possibilities. You can easily carve out the time to pump literally anywhere.

Pump while driving to a school run to pick up your older kids or pump in a workplace where there is no outlet.

Medela Freestyle vs Spectra S9

Spectra S9 vs Medela Freestyle: What are the differences?

A portable double electric breast pump like the Medela Freestyle Flex and the Spectra s9 can help you make your hectic, fast-paced life a little easier! It means you have the freedom to move unrestricted by breast pump wiring and tubes. You could catch up on the build-up of housework and laundry without feeling overwhelmed, or maybe just chill out and relax while you are pumping.

We will be looking at differences in these double electric breast pumps. As always, there will be differences in performance and practicality whenever there is a portable pump. So we will be comparing them on the basis of features like breast shields, portability, battery life, noise levels, and practicality.

spectra s2 vs s9 plus

Breast Shields

As a breast-pumping mom, it’s essential to make sure that you have the correct size shields to get the best milk expression with minimal wastage and discomfort.

If the shield size is too big, the suction will not be strong enough, and you could see your milk piling around the shield rather than going into the bottle. If it is too small, you could run the risk of damaging your nipples due to the power and suction of the pumps.

Medela Freestyle Flex uses flexible shields as a means of providing relaxed comfort around your breast and nipples. Whereas the Spectra s9 is a rigid shield that cups the breast and nipples. Nevertheless, it does the job well of expressing breast milk.

The fabulous thing about the Spectra S9 is that you can use other breast shields not made by the manufacturer.  Freemie cups are excellent for pumping milk as it sits inside your bra extracting milk rather than being strapped to bottles more conspicuously. 

Unfortunately, the Medela Freestyle Flex is not as adaptable and requires you to use only their accessories in connection with their pumps.

Medela Freestyle vs Spectra S9
Spectra S9


Wouldn’t it be great if you could carry your breast pump in your pocket or your handbag? Well, we got news for you. You totally can!

Weighing less than 1 lbs, The Medela Freestyle Flex and the s9 can be kept in a pocket, enabling busy moms to get on with their day quickly. This couldn’t be more perfect as it’s one less thing to worry about packing when out and about in terms of how heavy it is and how much more it is going to weigh you down alongside everything else you have to lug around with you.

Battery Life

For a portable breast pump, battery life is everything. It’s one of the first things to consider when buying a portable breast pump. 

The Freestyle Flex breast pump holds its battery life for 2 hours. You can get at least eight sessions in this space of time if you are double pumping.

The Spectra has a built in rechargeable battery, with a battery life of 3 hours; it is enough to have any mom buzzing over how much milk she could produce on the go with this double express breast pumping machine at her own pace.

The beauty of both pumps is that they have rechargeable battery. So even if you run out of juice, grab your ac-adapter and pump away!

Noise Level

What use is a portable pump if you still have to hide away because it is too noisy?

The Spectra 9 is relatively quiet as far as portable pumps go. Moms have claimed to have been double pumping without any problems at weddings, in glass door offices, and in places with general background noise for the pump to integrate with. 

Unfortunately, there have been reports of the Freestyle being too loud – not the one for your zoom meeting, we’re afraid!  Working moms may feel paranoid about using this breast pump in the office. It also vibrates, which adds to the noise and so renders it impractical for nighttime pumping. The Freestyle Flex is not as discreet as the Spectra pumps.


It’s great that we have two portable breast pumps that can be taken anywhere and used at any time.

But how practical is it? We will be looking at the small details that set them apart, such as their ability to switch modes and the use of apps.

Switch Modes

Unlike the Freestyle Flex, the s9 does not automatically switch to expression mode after being in letdown mode. If you are busy, you may forget you have been in massage mode the entire session.

However, this may not be a problem for you as many moms find that the expression mode is perfect for getting a large amount of milk.

spectra s9 review
spectra s9

There’s An App for that

The Medela has an app that records your last pumped breast milk, the duration of pumping sessions, and which breast you used. 

It also records your baby’s sleep and feeding routine and has a supportive community of fellow moms and lactation consultants at your beck and call. This is brilliant for the mom that suffers from regular baby-brain. 

The Spectra S9, unfortunately, does not have an app.

woman using a double electric breast pump

Final Verdict

Both pumps provide the versatility of being able to express on the go.

The Medela has some great features with its flexible breast shields and app to record the baby’s feeding and which boob you had used last.

The best breast pump for us is the Spectra s9.  It has a better battery life and is quieter.  It’s also adaptable with other non-branded products. When used with Freemie closed system cups, the s9 breast pump allows for versatility to be out and about using a relatively undetected pump.

>> Click here to see the Spectra S9 on Amazon and check the current price

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