1NW App
Pregnancy & baby tracker, kick counter, lab results & more
Get
Coming soon · 1NW Health The Early Gender Test — physician-signed answers from as early as 6 weeks. Check it out
Check Coverage
Check Coverage
Search Log in Cart
Home / Breast Pumps / Eufy S1
Eufy S1 — Wearable · in-bra from Eufy
Eufy
Wearable · in-bra

Eufy S1

By Eufy
4.8 (25 reviews)
Expert Tip
Great for multitasking. Everything fits discreetly in your bra with no cords or motor to clip on, so you can pump while working, commuting, or chasing toddlers.

Experience optimal, personalized breastfeeding comfort with the eufy Breast Pump S1, the only wearable pump featuring soothing heat technology that enhances milk flow and minimizes clogs. With 7 adjus...

Insurance

Covered by insurance

Most moms are fully covered for this pump. The check takes about 2 minutes — we handle the paperwork.

CoveredFully covered by most plans
Max Coverage Guarantee — if your plan qualifies for a better benefit, we apply it automatically.
Get this pump through insurance
  • 2-minute eligibility check — have your insurance card handy
  • Order window: most plans allow anytime during pregnancy
  • Plan not covered? You still get our Moms First price — 20% off retail.
Moms First
Retail

Buy with Moms First

Order direct, no insurance needed — most moms add a second pump this way. Moms First members save 20% and get 2 expert-led classes.

$239.99
  • Ships nationwide in 2–3 days
  • Free Breastfeeding 101 + Pumping Basics
Free delivery HSA/FSA eligible Max coverage guarantee
About the Eufy S1

Why moms choose
the Eufy S1.

Experience optimal, personalized breastfeeding comfort with the eufy Breast Pump S1, the only wearable pump featuring soothing heat technology that enhances milk flow and minimizes clogs. With 7 adjustable heat settings (95°F to 105°F), you can enjoy a nurturing and stress-free experience. Tailor your session with 7 suction intensities, 3 cycle speeds, and 4 OptiRhythm™ patterns, all designed to conform to each mom’s shape with a skin-like feel and ergonomic 105° angle for efficient milk output of upto 290 mmHg. Ideal for discreet in-bra use, this compact pump offers various flange sizes (17 mm to 24 mm), a leakproof design, and quiet operation. Its rechargeable battery supports 4 to 6 sessions per charge, andthe included carry bag makes on-the-go pumping effortless. Utilize smart planning tools on the eufy Baby app to monitor your progress, track milk volume, and set a 15-minute warm-up countdown for ready-to-go comfort, while the Smart Timer helps you identify and optimize your most productive pumping times.

Ideal for

Who the Eufy S1
is built for.

Working moms

Pump discreetly during meetings, commutes, or while chasing toddlers — no cords, no setup, no interruptions.

Moms on the go

Fits in your bra and works anywhere. Perfect for errands, travel, or just getting out of the house.

Exclusive pumpers

Multiple daily sessions are easier when you can move freely. Pair with a tabletop pump for variety.

What's in the box

What you get

  • 2 - Eufy S1 Pump motor
  • 2 - 17 mm insert
  • 2 - 19 mm insert
  • 2 - 21 mm insert
  • 2 - 24 mm flange
  • 2 - Magnetic charging cable
  • 1 - Chic storage bag
  • 2 - Dust cover
  • 1 - Cleaning brush
Specs

The technical part.

Breast Pump Type
Double Electric Breast Pump
Pumping Options
Single or Double Pumping
Vacuum (max mmHg)
300 mmHg
Suction Modes
Stimulation (7 Levels) & Expression Mode (7 Levels)
System Type
Closed System / Backflow Protection
Power Source
Rechargeable battery
Battery Life
120 Minutes
Charging Time
90 Minutes
Milk Capacity
5 fluid ounces
BPA Free
Yes
HSA/ FSA Eligible
Yes
App Connectivity
Apple; Android
Warranty
1 year on pump motor and 90 days on accessories; Email babysupport@eufy.com for service
Replacement parts & resupply

Keep your Eufy S1
working like new.

MilkZoom · Recommended

Replacement parts. Shipped monthly. Through your insurance.

Duckbills, diaphragms, tubing, breast shields, storage bags — all shipped to your door every month, billed to your insurance. Most moms are fully covered.

Learn More
$71.33
Average monthly value covered through insurance
Average across 1NW MilkZoom members with insurance coverage. Individual savings vary by plan and pump model.

Compatible parts at retail.

Need a single part rather than a recurring shipment? These are the Eufy Eufy S1-compatible parts available for one-off purchase. If your plan covers MilkZoom, the program above offfers better economics — these retail options are for moms whose insurance doesn't cover resupply, or who just need one specific item right now.

Answered honestly

Common questions
about the Eufy S1.

Real questions our IBCLC team and care concierge get every week. Don't see yours? Ask our care team — included with every pump.

Most insurance plans cover breast pumps at no cost to you under the Affordable Care Act. The Eufy S1 is one of our most popular covered pumps.
Check your coverage →
Most insurance plans allow you to order your pump at anytime during pregnancy. Some plans let you order earlier. We'll check your specific eligibility window when you enter your insurance info.
Once your order is on file and all paperwork received, pumps typically ship within 1–2 business days and arrive in 2–5 business days depending on your location. We ship free via UPS, FedEx, and USPS.
Every pump comes with access to our care team, including IBCLCs (lactation consultants) who can help with sizing, settings, and technique. You can reach them via chat, email, or video call — all included at no extra cost.
Yes! Breast pumps are HSA/FSA eligible. If you're paying out of pocket or covering an upgrade, you can use your pre-tax health savings.
Verified reviews

Real moms.
Real critiques.

★★★★★

"Easy to use & clean! Gentle & efficient!"

Elizabeth K. · Verified · 1 mo ago
★★★★★

""

Caty Y. · Verified · 1 mo ago
★★★★★

"Perfect for my first pumps, love the heating and they charge easily by my bedside. Highly recommend!"

Kelly C. · Verified · 1 mo ago
Begin with coverage

Find out what your insurance covers —
in about 2 minutes.

From pumps to maternity supplies. No obligation, no phone calls — we handle the paperwork either way.

Check Your Coverage Talk to our team
Eufy S1 Upgrade fee may apply · rest covered
Check my coverage