Spectra S1 Vs. S2: Going Pump To Pump

If you are trying to decide between the Spectra S1 vs. S2, you'll want to know that the S1 offers a rechargeable battery and quieter motor, while the S2 is lighter and more affordable but must be plugged in. These core differences typically mean the S1 is better for on-the-go moms, and the S2 works well if you mostly pump at home.

According to the Journal of Pediatrics, about 91% of U.S. mothers who initiate breastfeeding report ever using a breast pump to express milk, and pump use is associated with nearly five extra months of breastfeeding on average.

Have you wondered which pump fits your best: one with more mobility or one with lower cost? Today, we're taking a closer look at Spectra S1 vs. S2 so you can choose the best breast pump for your needs and lifestyle.

Which Spectra Pump Is Better for First-Time Moms?

Choosing a breast pump for the first time can feel overwhelming. The Spectra S1 vs. S2 comparison is often a first step for new mothers trying to figure out what works best.

Both models are reliable and comfortable, but they shine in different ways. The main points to consider are:

• How easy the pump is to use
• How comfortable and gentle it feels
• How well it fits your daily routine

Ease of Use

The Spectra S2 is popular with first-time moms because it is straightforward. Its clear controls make it less intimidating when learning how to pump.

Comfort and Gentle Suction

Both pumps offer adjustable suction levels and cycles, but the Spectra S1 features more flexibility in settings. It allows a new mom to fine-tune comfort while building confidence.

Fit for Daily Life

For mothers who spend most of their time at home, the S2's lower cost can make sense. For those who need mobility, the S1's rechargeable battery adds freedom.

Why Is Spectra S1 More Expensive Than S2?

Many parents notice that the Spectra S1 costs more than the S2 and wonder why. Both pumps share many of the same features, yet the price gap is clear.

The difference comes down to a few main points:

• A built-in rechargeable battery
• Extra convenience for busy lifestyles
• Greater flexibility in use

A Built-In Rechargeable Battery

The Spectra S1 includes a battery that can be charged and used anywhere. It makes it possible to pump without being tied to an outlet.

The S2 must always be plugged in, which can limit flexibility.

Extra Convenience for Busy Lifestyles

Mothers who travel, work outside the home, or need to pump in different rooms often choose the S1. The extra cost reflects the convenience of not carrying cords or finding outlets.

Greater Flexibility in Use

The added mobility means the S1 adapts better to unpredictable schedules. This advantage explains the higher price tag compared to the S2.

Spectra S1 vs. S2: Side-By-Side Breast Pump Comparison

When mothers compare the Spectra S1 vs. S2, the main goal is to see how they perform in everyday life. Both pumps share many of the same design elements, but they stand apart in a few ways that can make a difference for parents.

The areas that matter most are:

• Noise
• Suction strength
• Weight and portabili

Noise Levels

Both pumps are known for being quiet compared to many others on the market. The S1 and S2 let moms pump without drawing much attention, which is useful for nighttime sessions or workplace pumping.

Suction Strength

The suction is nearly the same between the two models. Each offers adjustable settings to help mothers find the right balance of comfort and efficiency.

Weight and Portability

The S2 is lighter but must stay near an outlet. The S1 is a bit heavier, yet it gives freedom with its rechargeable battery.

It means the S1 fits busy, mobile routines, while the S2 fits mothers who pump mostly at home.

Here is a side-by-side comparison chart to help you decide which is best for your lifestyle:

Feature	Spectra S1 Plus	Spectra S2 Plus
Power Source	Built-in rechargeable battery (up to 3 hours on a full charge)	Needs to be plugged in (AC adapter only)
Portability	Highly portable – ideal for moms on the go	Less portable – best for home or office use
Weight	3.5 lbs	2.5 lbs
Pump Type	Double/Single Electric Breast Pump	Double/Single Electric Breast Pump
Suction Strength	Hospital-strength, up to 270 mmHg	Hospital-strength, up to 270 mmHg
Massage Mode	Yes – stimulates letdown	Yes – stimulates letdown
Adjustable Settings	Customizable suction & cycle speed	Customizable suction & cycle speed
Noise Level	Ultra-quiet motor	Ultra-quiet motor
Night Light	Yes	Yes
Display	LCD screen with timer	LCD screen with timer
Battery Life	Rechargeable (no need to stay plugged in)	N/A (must use outlet)
Best For	Moms who travel, pump at work, or need flexibility	Moms who primarily pump at home
Insurance Coverage	Often covered with upgrade fee	Often fully covered by insurance

Frequently Asked Questions

What accessories are compatible with Spectra pumps?

Spectra pumps work with a variety of accessories that make the pumping process easier. Mothers can use Spectra bottles, narrow-neck adapters, or wide-neck bottles, depending on preference.

Flange sizes are available in several options, which help achieve a better fit for comfort and efficiency. Many parents also purchase cooler bags and spare tubing to round out their setup.

Can you use Spectra pumps for exclusive pumping?

Both the Spectra S1 and S2 are strong enough for exclusive pumping. They are built to handle multiple sessions each day without wearing down quickly.

With regular cleaning and maintenance, either pump can support months or even years of frequent use.

How do Spectra pumps compare with hospital-grade pumps?

Spectra pumps are often praised for having performance close to hospital-grade models. While they may not reach the same level of power, their suction strength and comfort settings are impressive for a personal-use pump.

For many families, this balance is enough to replace hospital rentals.

What are some breastfeeding tips for maximizing pump efficiency?

Mothers often find better results when staying hydrated and relaxed before and during pumping. Keeping a consistent schedule helps maintain supply.

Choosing the correct flange size and adjusting settings can also make each session more effective and comfortable.

Spectra S1 and Spectra S2 Benefits

Choosing between the Spectra S1 vs. S2 comes down to lifestyle and routine. The S1 offers mobility with its rechargeable battery, while the S2 provides the same performance at a lower price.

Both pumps deliver comfort and reliability, making either a strong choice for breastfeeding families.

At 1 Natural Way, our mission is to make breastfeeding support simple, compassionate, and accessible. Since 2014, we've partnered with doctors and clinics nationwide to connect moms with trusted brands, insurance-covered pumps, and personalized care.

Our team includes IBCLC experts and telehealth providers who guide families through every stage of motherhood. With a focus on privacy, affordability, and advocacy, we're proud to serve moms across all 50 states and beyond.

Get in touch today to find out more about the best breast pump options!

About the Author

Cindy Puppos is 1 Natural Way's Customer Service Manager, so she has a good idea of all the different and wonderful questions that moms have for her team. Thankfully, as the mother of two boys (who are now grown!) and a veteran of the company and breastfeeding, Cindy is always knowledgeable about breastfeeding, pumping and all the latest and greatest pumps!