Spectra S1 vs. Medela Pump In Style: Breast Pump Comparison
Spectra S1 vs. Medela Pump In Style: Breast Pump Comparison
Spectra and Medela are the two dominant names in breast pumps, and choosing between them is one of the biggest decisions for pumping parents. Both are excellent pumps with loyal followings, but they differ in important ways. Here's our detailed comparison to help you choose.
Quick Overview
- Spectra S1 Plus: ~$200, closed system, rechargeable battery, hospital-grade suction
- Medela Pump In Style MaxFlow: ~$200, closed system, battery-powered option, established brand
Both pumps are frequently covered by insurance, so check with your provider before paying retail. Many parents get their pump free or heavily subsidized through insurance.
Suction and Expression
Spectra S1 Plus
The Spectra uses a diaphragm-based closed system that generates strong, adjustable suction. It features both a "massage" (letdown) mode and an "expression" mode, each with independently adjustable suction levels. Most pumping parents find the Spectra comfortable at effective suction levels — it pulls firmly without being painful.
Medela Pump In Style MaxFlow
The Medela MaxFlow uses their PersonalFit Flex connectors and the 2-Phase Expression technology that mimics baby's natural nursing pattern — faster stimulation phase followed by slower, deeper expression phase. The suction is effective, though some parents find the Spectra generates slightly stronger maximum suction.
Winner: Spectra S1 — more granular control over suction settings, slightly stronger maximum output
Comfort
Spectra S1 Plus
The suction is smooth and the massage mode does a good job of stimulating letdown. The flanges are comfortable for most, though you may need to try different sizes (this is true of all pumps). The adjustable suction and cycle speed let you find your personal sweet spot.
Medela Pump In Style MaxFlow
The PersonalFit Flex connectors angle slightly to let you lean back while pumping, which is a nice comfort feature. The 2-Phase system is designed for comfort, and Medela's long history means their suction profiles are well-refined.
Winner: Tie — both are comfortable pumps; individual preference varies
Portability
Spectra S1 Plus
The S1 has a built-in rechargeable battery, which is a significant advantage. You can pump anywhere without needing an outlet. The battery lasts about 3 hours of pumping (roughly 5-6 sessions), which gets most parents through a workday. The pump itself is compact and comes with a carrying bag.
Medela Pump In Style MaxFlow
The MaxFlow comes with a battery pack option and can run on AA batteries as a backup. However, the battery solution isn't as seamless as the Spectra's built-in rechargeable. The pump is compact and the carrying bag/cooler combo is well-designed for working parents.
Winner: Spectra S1 — built-in rechargeable battery is more convenient
Noise Level
Spectra S1 Plus
Noticeably quieter than the Medela. It's not silent, but it's closer to a gentle hum than a rhythmic motor sound. Many parents pump during work calls with the Spectra and report that the sound isn't picked up by microphones.
Medela Pump In Style MaxFlow
Louder than the Spectra. The rhythmic pump sound is audible across a room. While not obnoxiously loud, it's noticeable. If discretion matters for your pumping situation, this is a consideration.
Winner: Spectra S1 — meaningfully quieter
Cleaning and Hygiene
Spectra S1 Plus
Closed system, meaning no milk can enter the tubing. This is important — it means less cleaning, less risk of mold in the tubing, and a more hygienic system overall. The pump parts are straightforward to disassemble and clean.
Medela Pump In Style MaxFlow
The MaxFlow is now also a closed system (older Medela models were open systems), so this advantage has narrowed. Both brands have comparable cleaning routines. Medela parts are widely available in stores, which is convenient for replacing worn pieces.
Winner: Tie — both are closed systems with manageable cleaning routines
Parts Availability and Compatibility
Spectra S1 Plus
Spectra parts are available on Amazon and through most baby retailers, but they're slightly less ubiquitous than Medela. However, Spectra flanges are compatible with many aftermarket brands (Maymom, Legendairy Milk), giving you more options for finding the perfect flange fit.
Medela Pump In Style MaxFlow
Medela parts are available everywhere — Target, Walmart, Amazon, pharmacies. If you need a replacement part urgently, you can find Medela components in almost any store that sells baby products. The PersonalFit Flex connectors are specific to Medela, so you're somewhat locked into their ecosystem for key components.
Winner: Medela — wider retail availability for parts
Wearable Pump Alternative
If you're considering a wearable pump instead of either traditional option, the Elvie Stride (~$170) offers hands-free pumping with good output. Wearable pumps generally don't fully replace traditional pumps for exclusive pumpers, but they're excellent for supplemental or on-the-go sessions. See our feeding gear guide for more.
Insurance Coverage
Both Spectra and Medela are commonly covered by insurance. Through insurers like Aeroflow, you can often get either pump free or at significantly reduced cost. Check your insurance benefits early in pregnancy — some plans require prescriptions or pre-authorization.
Pairing With Bottles
Regardless of which pump you choose, you'll be transferring pumped milk into bottles. Our top bottle picks include Dr. Brown's Options+ for anti-colic performance and Comotomo for breastfeeding families transitioning between breast and bottle. See our feeding bottles roundup for detailed recommendations.
Who Should Choose Which?
Choose the Spectra S1 if:
- You want a built-in rechargeable battery for portability
- Quiet pumping is important (at work, during calls)
- You want maximum control over suction settings
- You value slightly stronger suction power
Choose the Medela Pump In Style MaxFlow if:
- You want parts available at any retail store
- You prefer the PersonalFit Flex angled connector comfort
- Brand familiarity and established reputation matter to you
- Your insurance specifically covers Medela
The Bottom Line
The Spectra S1 edges out the Medela for most pumping parents thanks to its quieter operation, built-in rechargeable battery, and strong suction control. The Medela remains an excellent pump with superior parts availability. Both are professional-grade, effective pumps that serve pumping parents well. Check your insurance coverage first, try both flanges to find the right fit, and remember that pump comfort is highly individual. Visit our feeding and bottles category for complete feeding gear recommendations. Amazon links may earn us an affiliate commission at no additional cost to you.
