Sonata® Smart Breast Pump with PersonalFit Flex™ Breast Shields Find a store

Sonata® Smart Breast Pump with PersonalFit Flex™ Breast Shields

Sonata®, Medela's double-electric breast pump with 2-Phase Expression® Technology, is a smart breast pump designed with moms and babies in mind.

Item # 101037319

Sonata Features & Benefits

  • Double-electric, daily-use breast pump: Designed for moms who pump several times a day
  • 2-Phase Expression Technology with one-touch letdown button: Provides more milk in less time when double pumping when compared to single pumping in the expression phase
  • Smart: Connects with Smart Solution to the Medela Family app
  • Quiet: Our quietest personal-use breast pump allows for discreet pumping anywhere
  • Hospital performance: Inspired by Symphony
  • Illuminated touch screen display and rechargeable battery: To conveniently pump anywhere, anytime
  • Includes two sizes of PersonalFit Flex™ Breast Shields: Proven to remove 11.8% more milk faster. Designed to reduce pressure on the breast and optimize milk flow.* * compared to the traditional 90° breast shield
  • Closed System: Overflow Protection at the kit prevents milk from entering the tubing & motor
Medela Sonata breast pump with grey carry bag and parts

Sonata® Breast Pump - An Overview

Product Description
What's Included
Links & Downloads
Helpful Videos

Welcome to Sonata®, a double electric breast pump from Medela that has been carefully designed with the comfort and convenience of both mom and baby in mind.

Engineered with 2-Phase Expression® technology and Smart Solution™, Sonata seamlessly connects to the Medela Family app for unlimited access to mom’s personalized dashboard, real-time tracking of her pumping sessions and baby’s growth, and a variety of breast milk feeding resources, including evidence-based lactation guidance and personalized content to help her reach her breast milk feeding goals.

Sonata is:

  • A rechargeable breast pump built with responsive technology for highly optimized, convenient, and efficient pumping anywhere
  • Simple to operate and user-friendly: its touch screen display, one-touch letdown button, and controlled illumination allow moms to start using Sonata quickly and with ease
  • A pump that features powerful hospital performance, inspired by Medela’s Symphony® breast pump
  • Customizable and flexible: An adjustable timer helps balance a busy life with regularly scheduled pumping sessions, while 2 clinically tested pumping rhythms give moms the option to choose the most seamless and comfortable pumping experience

Sonata was created to enhance the breast milk feeding experience of today’s mom while addressing common challenges associated with pumping.

With Sonata, your moms can also expect:

  • More milk in less time when double pumping, due to Medela's patented 2-Phase Expression technology and our research-based PersonalFit Flex™ Breast Shields, which deliver 11.8% more milk per minute faster. 
  • Consistent pumping sessions through hospital-grade performance meticulously integrated into a personal use pump.


  • (1) Sonata breast pump with rechargeable lithium-ion battery
  • (1) breast pump bag
  • (1) double pumping kit
  • (2) breast shield connectors, two connector caps, two valves, two silicone membranes and one set of tubing
  • (2) 21 mm and (2) 24 mm PersonalFit Flex™ Breast Shields
  • (4) 5 oz. bottles with lids
  • (1) cooler bag and cooling element
  • (2) bottle stands 
  • (1) power adaptor

Important: Plastic bottles and component parts become brittle when frozen and may break when dropped.  Also, bottles and component parts may become damaged if mishandled, e.g. dropped, over-tightened, or knocked over.  Take appropriate care in handling bottles and components.  Do not use the breastmilk if bottles or components become damaged.



  • Color bag: black and grey
  • UL listed
  • Power input: 100-240V~/50-60Hz/400-200mA


  • Unit weight: 2.2 lbs. (breast pump only)/7.71 lbs. (retail package)
  • Unit size/package: 10.34" x 16.37" x 7.13"

Warranty: 1 year limited on motor/90 days on other parts.  For hygienic reasons, cannot be returned to store once opened.  Please contact Medela Customer Service for warranty replacement.

IMPORTANT: Use of pump parts or accessories not designed for your specific breast pump may cause irreversible damage to the product. For that reason, only use the accessories that came with, or are identified by Medela to work with, your specific breast pump model.


Sonata® Breast Pump - Alerts and Alarms

Sonata® Breast Pump - An Overview

Sonata® Breast Pump - Fixing Little to No Suction

Sonata® Breast Pump - How to Assemble

Sonata® Breast Pump - How to Clean

Sonata® Breast Pump - How to Set the Timer

Sonata® Breast Pump - How to Use

Sonata® Breast Pump - Resetting Your Pump

Sonata® Breast Pump - Sonata Sounds

Sonata® Breast Pump - This Is Performance

Sonata® Breast Pump - This Is Quiet

Sonata® Breast Pump - This Is Smart

Sonata® Pump - Fix Little to No Milk Expression