Description
- Wearable
- In-bra
- Charging case
- Heated
A heated wearable with a case that keeps it charged
The eufy S1 Pro breast pump is the eufy S1 pump plus a wireless charging case that recharges both cups between sessions. eufy rates the case at up to 5 days of power, so it suits moms who pump at work or on the go.
One less thing to plug in on the days you’re already juggling the most.

Is the eufy S1 Pro breast pump right for you?
Best for
- Pumping at work, on the commute or on a weekend away
- Days with several sessions and no outlet you can count on
- Moms who want warmth and app control, kept simple
Maybe not for
- Massage, a nipple light or full-cup alerts. The eufy S2 Pro adds those, with a case eufy rates at up to 7 days.
The case: days of power, no outlet
Set the cups in the case after a session and they recharge there, ready for the next one.

What the case does for you
- Up to 5 days
- eufy’s rating for three 20-minute sessions a day with the heat off.
- Charges both cups
- No cable to find between sessions. The magnetic cable still comes in the box for home.
- Power, not parts
- eufy says the case is for charging, not for used parts, so bring a separate bag for anything that needs washing.
- Built for busy weeks
- eufy designed it for workdays and weekend trips, when charging every night is one more job.

Inside the case: the eufy S1 pump
- HeatFlow™ warming
- Heat built into the soft silicone flange, seven levels from 95 to 105°F, on a 5 to 15 minute timer.
- Two modes
- Stimulation and expression, switched with a button on the pump.
- Your rhythm
- Four presets, five rhythms from an IBCLC, or your own in the eufy Baby app.
- Leakproof seal
- A double seal and a reinforced lower half around each 5 oz cup.
Quiet enough for the office
eufy rates the S1 Pro under 46 dB, and the cups are slim enough to wear under a top.


S1 Pro, S2 Pro or S1?
All three are eufy wearables with warmth and app control. The S2 Pro adds massage, a nipple light and alerts; the S1 is this pump without the case.

eufy S1 Pro
Wearable, charging case
- Warmth, 7 heat levels
- Case rated up to 5 days
- 7 suction levels, 3 speeds
You’re viewing this pump

eufy S2 Pro
Wearable, massage, charging case
- VibraPump™ massage and HeatFlow™ 2.0
- Nipple light and full-cup alerts
- Case rated up to 7 days

eufy S1
Wearable, charges on a cable
- Same pump, no case
- 4 to 6 sessions per charge
- Soft storage bag in the box
Questions moms ask about the eufy S1 Pro
How much does the Eufy S1 Pro cost with insurance?
With insurance, the Eufy S1 Pro costs $0 to $225, depending on your plan. Many plans cover it in full; others add an upgrade fee. Check your coverage and we’ll tell you your exact cost before you order.
How strong is the eufy S1 Pro suction?
Up to 300 mmHg across 7 suction levels and 3 speeds, eufy says. That is a higher maximum than the Spectra S1 and S2, which list 270 mmHg. Compare maximums only; a higher number does not mean a pump empties better. eufy’s own FAQ calls the S1 Pro’s 300 mmHg “hospital grade suction”, and its blog says that describes a suction level, not a promise of rental-unit performance. We do not call it hospital grade.
How do you assemble the eufy S1 Pro?
Assembly takes four steps, from eufy’s user guide. 1. Press the duckbill valve into the small hole inside the container and flick it to check it holds. 2. Push the flange tunnel onto the container with the heating pins in the oval notch, then wrap the outer ring. 3. Set the diaphragm in the groove, concave side toward the flange. 4. Press the pump hub onto the top of the container to seal the gap with the diaphragm.
How do you clean the eufy S1 Pro?
Wash by hand: eufy’s guide says not to use a dishwasher or a microwave. Rinse every part except the pump hub in warm, soapy water with the supplied brush and air dry them, and wipe the hub with a damp cloth. Before first use, boil the parts for up to 5 minutes, stirring constantly, or steam them for up to 5 minutes.
What parts does the eufy S1 Pro have, and when do they need replacing?
eufy counts 4 washable parts: the flange, duckbill valve, diaphragm and milk container. The pump hub is not washable. eufy rates the washable parts at 1 to 3 months, extra duckbill valves come in the box, and other replacements are sold at eufy.com.
What flange size does the eufy S1 Pro use?
A 24 mm flange with 17, 19 and 21 mm sizing inserts in the box, and eufy sells 27 mm flanges separately. eufy’s chart by nipple diameter: 13 to 15 mm is a 17 mm insert, 15 to 17 mm a 19 mm insert, 17 to 20 mm a 21 mm insert, 20 to 23 mm the 24 mm flange and 23 to 26 mm the 27 mm flange. For 11 to 13 mm the chart calls for a 15 mm insert, which is not in this box.
How long does the battery last?
eufy’s site rates a charge at 4 to 6 pumping sessions, and its comparison table lists 5.5 hours for the S1 Pro, which has the same pump. The user guide’s spec sheet lists 2 hours of use, 1.5 hours to charge and a 1400 mAh battery, so eufy’s own figures differ. In the case a pump recharges in 1.7 hours.
How long does the charging case last?
Up to 5 days of power, eufy says, with a fully charged case and pumps and three 20-minute sessions a day without heat. The case takes 3.2 hours to charge empty, or 5 hours with two pumps inside.
Can I keep used parts in the case?
No. eufy says the case recharges the pumps but isn’t meant for used milk-contact parts, so bring a separate bag for parts that need washing.
What’s the difference between the eufy S1 Pro and S1?
The pump is the same. The S1 Pro adds the charging case. The eufy S1 charges on the magnetic cable and comes with a soft storage bag instead.
How loud is the eufy S1 Pro?
Under 46 dB, eufy says, the same rating it gives the S2 and S2 Pro.
Can I use the eufy S1 Pro lying down?
eufy’s guide does not address reclining. It says to lean slightly forward so your nipple is centered in the flange tunnel, never to use the pump while sleeping or drowsy, and not to wear it for more than 35 minutes unless your provider says otherwise.
Is the eufy S1 Pro discontinued?
No. eufy still sells the S1 Pro at eufy.com next to the newer eufy S2 Pro, and we have not seen an end-of-life notice from eufy. Availability can change, so we confirm stock when you start your order.
Is the eufy S1 Pro worth it?
It is a good fit if you pump away from home and want warmth and app control without extras. The case keeps the pumps charged for days, and the pump itself is the same as the eufy S1, so the case is what you are paying for. If you want massage, a nipple light or full-cup alerts, look at the eufy S2 Pro. Start your order through insurance and we show you your exact price before anything ships.
Does insurance cover the eufy S1 Pro?
Most health plans must cover a breast pump under federal rules, and we check whether yours covers the eufy S1 Pro. Start your order through insurance, and we will tell you before anything ships if your plan covers a different pump.
Can I get a eufy pump through insurance?
Most health plans, including Marketplace plans, must cover a breast pump under federal rules (HealthCare.gov). We check your plan, get the prescription from your doctor, and ship the eufy S1 Pro breast pump to your door. If your plan covers a different pump, we will tell you before anything ships.
Start your order through insurance
Don’t see your plan? We work with hundreds, including state Medicaid programs. Questions first? See our pumping FAQ.















