Spectra S1 Plus vs S2 Plus – Check Which One Is Best & Why?

Spectra S1 Plus & Spectra S2 Plus share many similarities, but there are also important differences, such as quality, performance, features, design, and connectivity. If you want the best one between them, I Would recommend the Spectra S1 Plus rather than the Spectra S2 Plus.

Why Do I Recommend The Spectra S1 Plus?

  • The Spectra S1 Plus has a built-in rechargeable battery to allow pumping without being tethered to an outlet in bedrooms, offices, or cars, while the Spectra S2 Plus uses AC-only power.
  • Spectra S1 Plus includes cordless operation for maintaining pumping schedules during travel or power interruptions, whereas the Spectra S2 Plus requires a constant electrical connection.
  • It comes with on-screen battery level monitoring to plan pumping sessions without unexpected shutdowns, while the Spectra S2 Plus has no battery status display.
  • The Spectra S1 Plus supports pumping during power outages to maintain milk supply consistency when electricity is unavailable, whereas the Spectra S2 Plus cannot operate without active power.
  • Spectra S1 Plus features greater room-to-room mobility for multitasking parents who need flexibility during daily routines, while the Spectra S2 Plus must stay near an outlet.
  • It includes internal battery charging capability to reduce reliance on external power accessories, while the Spectra S2 Plus relies entirely on continuous wall power.
  • The Spectra S1 Plus has improved travel readiness for parents who pump away from home without adapters or inverters, whereas the Spectra S2 Plus requires access to standard power sources.
  • Spectra S1 Plus supports uninterrupted pumping sessions when outlets are limited or unavailable to protect pumping consistency, while the Spectra S2 Plus stops functioning when unplugged.

Maybe the Spectra S2 Plus can make you comfortable because it’s a little bit cheaper than the Spectra S1 Plus. But you have to compromise all the above-mentioned features. Now the Decision is Yours. I hope it was helpful to choose the right one.

Side-by-Side Comparison

FeatureSpectra S1 PlusSpectra S2 Plus
Power sourceRechargeable battery + AC adapterAC adapter only
Built-in batteryYesNo
Cordless operationYesNo
Battery runtime~3 hoursN/A
Battery charge time~3–4 hoursN/A
Battery status indicatorYesNo
Use during power outageYesNo
PortabilityHigherLower
Travel convenienceHigherLower
Vehicle pumping (without inverter)YesNo
Body color (common retail)Blue/tealPink
Price (typical)HigherLower
Charging requirementYesNo
Included charging hardwareAC adapter/chargerAC adapter
PriceCheck Spectra S1 Plus PriceCheck Spectra S2 Plus Price

What Common Both Can Do?

  • Hospital-grade pump: Both models are classified as hospital-grade breast pumps, meaning they are designed for frequent, long-term, and exclusive pumping. This matters because hospital-grade motors are built for durability and consistent suction over time.
  • Maximum suction level: Both pumps reach suction levels up to approximately 270 mmHg. This provides sufficient strength for effective milk expression across a wide range of comfort preferences.
  • Closed system: Each pump uses a closed system design that prevents milk from entering the tubing or motor. This helps maintain hygiene, protects the motor, and reduces the risk of mold or contamination.
  • Double pumping capability: Both models support double pumping. This allows users to pump from both breasts simultaneously, saving time and supporting milk supply maintenance.
  • Single pumping option: Both pumps can also be used for single-side pumping. This flexibility is useful when alternating sides or addressing comfort needs.
  • Massage mode: Each pump includes a massage (let-down) mode. This mode is designed to stimulate milk flow before switching to expression.
  • Expression mode: Both models feature an expression mode for steady milk removal after let-down. This supports efficient pumping sessions once milk flow begins.
  • Adjustable suction levels: Users can adjust suction strength on both pumps. This allows customization for comfort and effectiveness throughout different stages of pumping.
  • Adjustable cycle speed: Both pumps allow control over cycle speed. Adjusting cycle speed helps match the pump rhythm to personal comfort and milk flow patterns.
  • Backflow protector: Both include a backflow protector in the pumping system. This component helps keep milk out of the tubing and motor while maintaining suction consistency.
  • Night light: Each model has a built-in night light. This makes nighttime pumping easier without turning on bright room lights.
  • LCD display: Both pumps use an LCD screen. The display provides clear visibility of settings, time, and active modes during pumping.
  • Quiet operation: Both are designed to operate quietly. Reduced noise is important for discreet pumping at home or around others.
  • BPA-free parts: All milk-contact components for both models are BPA-free. This supports safety for both parent and baby.
  • Standard flange compatibility: Both include standard 24 mm flanges and support other Spectra flange sizes. This ensures proper fit options for different users.
  • Tubing compatibility: Both use the same Spectra tubing system. This allows easy replacement and compatibility with Spectra accessories.
  • Timer function: Both pumps include a built-in timer. The timer helps users track session length for consistency and routine management.

Common Features

FeatureSpectra S1 PlusSpectra S2 Plus
Hospital-grade pumpYesYes
Maximum suction levelUp to 270 mmHgUp to 270 mmHg
Closed systemYesYes
Double pumping capabilityYesYes
Single pumping optionYesYes
Massage modeYesYes
Expression modeYesYes
Adjustable suction levelsYesYes
Adjustable cycle speedYesYes
Backflow protectorYesYes
Night lightYesYes
LCD displayYesYes
Quiet operationYesYes
BPA-free partsYesYes
Standard flange compatibility24 mm included24 mm included
Tubing compatibilityStandard Spectra tubingStandard Spectra tubing
Timer functionYesYes
Price Check Spectra S1 Plus Price
Check Spectra S2 Plus Price

FAQ

Are the Spectra S1 Plus and Spectra S2 Plus equally effective at milk expression?
Yes, both pumps use the same hospital-grade motor and reach similar maximum suction levels, so milk expression performance is essentially the same between the two models.

Do Spectra S1 Plus and Spectra S2 Plus have the same suction strength and cycle options?
Yes, both models provide adjustable suction levels and adjustable cycle speeds, allowing users to customize settings for comfort and efficiency.

Is the pumping experience different between Spectra S1 Plus and Spectra S2 Plus?
The pumping experience feels the same in terms of suction rhythm, noise level, and comfort because both pumps share the same internal pumping technology.

Can both Spectra S1 Plus and Spectra S2 Plus be used for exclusive pumping?
Yes, both pumps are suitable for exclusive pumping due to their hospital-grade motors and durable design intended for frequent daily use.

Do both pumps support double and single pumping?
Yes, Spectra S1 Plus and Spectra S2 Plus can be used for double pumping or single pumping depending on the setup and user preference.

Are the pump parts interchangeable between Spectra S1 Plus and Spectra S2 Plus?
Yes, bottles, flanges, tubing, valves, and backflow protectors are interchangeable between the two models.

Do both pumps use a closed system design?
Yes, both pumps feature a closed system that prevents milk from entering the tubing or motor, helping maintain hygiene and protect the pump.

Are Spectra S1 Plus and Spectra S2 Plus equally quiet during operation?
Yes, both models are known for quiet operation, making them suitable for use at night or around sleeping babies.

Do both pumps include massage and expression modes?
Yes, both Spectra S1 Plus and Spectra S2 Plus include a massage mode for let-down stimulation and an expression mode for milk removal.

Is the display and control layout the same on both pumps?
Yes, both pumps use a similar LCD display and button layout, making it easy to switch between models without relearning controls.

Do Spectra S1 Plus and Spectra S2 Plus include a night light?
Yes, both models include a built-in night light to assist with nighttime pumping without bright room lighting.

Are both pumps compatible with different Spectra flange sizes?
Yes, both models support multiple Spectra flange sizes, allowing users to adjust fit for comfort and effective pumping.

Do Spectra S1 Plus and Spectra S2 Plus have a built-in timer?
Yes, both pumps include a timer function that tracks the duration of pumping sessions.

Are both pumps made with BPA-free materials?
Yes, all milk-contact parts used with both Spectra S1 Plus and Spectra S2 Plus are BPA-free for safety.

Is maintenance and cleaning the same for both pumps?
Yes, cleaning and maintenance procedures are the same for both models since they use identical accessories and pump components.