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In this guide
The Harmony is Medela's only manual pump in the US, and the maker is unusually direct about what it is for: occasional pumping, travel, and backup to an electric pump. Its distinguishing part is the handle. One side is short, for quick shallow strokes that mimic the fast sucking a baby uses to trigger let-down; the other is long, for slower deeper strokes that express once milk is flowing. Medela calls this 2-Phase Expression, and on its electric pumps it is a motor setting. Here it is your grip.
Medela's own US catalog page lists no price and sends buyers to Amazon, Target, Walmart or its direct shop, where the Harmony is $31.49. For that you get the handle and diaphragm, a connector, a valve with two membranes, a 24 mm PersonalFit Flex shield, a 150 ml bottle with lid and a stand. All of it together weighs 105 grams. The Haakaa Gen 2 has its own review on this site, and the two are often bought as if they were rivals; they are not, and the section on that below is the one to read first if the Haakaa is on your list too.
Our verdict
The sensible manual pump to keep in a bag or a drawer: light, quiet, cheap to replace parts for, and honest about being for occasional use; anyone pumping many times daily should be shopping electric.
- A good fit for
- A nursing parent who mostly feeds directly and needs a pump for the odd missed feed, a trip, relief from engorgement, or a power cut, and who wants it to fit in a handbag.
- We would skip it if
- You pump on a schedule, you rely on a double electric pump and only want a passive letdown catcher, or you need a shield size other than 24 mm and do not want to buy one separately.
Reasons to consider it
- Two-sided handle gives a fast stimulation stroke and a slow expression stroke without a motor
- Ships with a 24 mm PersonalFit Flex shield, 150 ml bottle, lid, stand and a spare valve membrane
- 105 g, closed system, no battery or cord; all milk-contact parts are BPA-free and can be boiled or put through a dishwasher
The compromises
- It is a single pump, so expressing both sides means two sessions and one tired hand
- Only the 24 mm shield is included; the 21, 27 and 30 mm sizes cost extra
- The warranty is 90 days through Medela's US shop, against one year for its electric pumps
What we have not verified: The pump was not used for this review, so suction strength, how soon the hand fatigues in a full session, valve membrane wear and the real-world fit of the 24 mm shield were not assessed. Medela's US pages do not give a vacuum figure, and the international instruction sheet, not a US-specific one, is what documents materials and cleaning.
The things in this guide
A closer look at the products, who they may suit, and what to check before buying.
Harmony Manual Breast Pump
A 105 g closed-system pump with a two-phase handle, a flex shield and a 150 ml bottle for $31.49, with spare membranes and shields sold as standard parts.
Before you buy: Single-sided, hand-powered, and covered by a 90-day warranty; it is a backup by design, and Medela says so.
Price checked September 11, 2026. Retailer prices can change.A handle with two sides, and why that is the whole product
Every manual pump makes vacuum by squeezing a lever that lifts a diaphragm. What Medela adds is a lever with two working lengths. The instructions say to start on the short side at a fast pace, which produces shallow, rapid pulls that imitate how a baby sucks before milk arrives, and then to move to the long side once milk is visibly flowing, which produces slower, deeper pulls for expression. Speed and pressure are in your hand, so unlike an electric pump nothing stops you from mixing the two.
The diaphragm sits under the handle with a stem and a small white O-ring, and the O-ring is the part that seals the handle to the connector. The instruction sheet singles it out: if it is missing or damaged there is no vacuum, and you contact customer service. Below the connector is a valve head with a silicone membrane, and a second membrane comes in the pack because the membrane is the wear item. Medela describes the assembly as a closed system, meaning milk does not travel into the handle. All of this is light: the pump weighs 105 grams, and there is no motor, cord or battery to add to that.
Harmony against the Haakaa: a pump against a collector
The Haakaa Gen 2, reviewed separately here, is one moulded piece of silicone that you squeeze, press to the breast and let go; the suction holds it in place and catches the milk that lets down on the side the baby is not feeding from. It is passive. It cannot be worked to increase flow, it cannot be used to start a session when no baby is feeding, and it is at its best catching milk that would otherwise soak a pad. Haakaa USA lists the 4 oz Gen 2 at $19.99.
The Harmony is an active pump. You can sit down with no baby present, cycle the short side of the handle until milk comes, and then express a bottle. That makes it a tool for a missed feed, a trip, relieving engorgement, or building a small stash, jobs the Haakaa is not designed for. The cost is that it has parts to wash and a valve to reassemble, and that your hand does the work. If the only job is catching the other side during a feed, the Haakaa is cheaper and simpler; if the job is getting milk out on demand, only the Harmony qualifies, and the extra $11.50 is the price of the handle and valve.
One 24 mm shield in the pack, and a daily boil
The included PersonalFit Flex shield is 24 mm, the size Medela calls M. It has a 105-degree opening angle, a soft rim and an oval shape, and the maker cites a clinical study for the claim that it removes more milk and does so more comfortably than its older 90-degree shield. Fit is individual, though, and Medela sells the shield in 21, 24, 27 and 30 mm. If 24 mm is wrong for you, a second shield is an extra purchase, and Medela gives no sizing guide on the Harmony page itself; the instruction sheet has a short section on choosing a size.
Cleaning is a two-step routine. After every use the pump comes fully apart, the diaphragm and stem come out of the handle, the membrane comes off the valve, and everything is rinsed cool, washed in warm soapy water in a basin reserved for feeding items, and rinsed again; the dishwasher's upper rack or cutlery basket is also allowed, with a note that parts may discolor. Once a day the washed parts are sanitized, either by boiling for at least five minutes or in Medela's microwave bags, and the handle is exempt from the microwave. Milk-contact parts are polypropylene, thermoplastic elastomer and silicone, and Medela states that BPA is absent from all three.
$31.49 direct, a 90-day warranty, and returns only if unopened
Medela's own US page carries no price; its buy button opens a drawer of retailers, and its navigation links to a shop it labels Medela direct, run by a fulfillment partner. That shop lists the Harmony at $31.49 under SKU 101041149 and a Harmony bundle with colostrum collectors and feeding syringes at $39.99. US orders of $99 or more ship at no charge, so a lone pump pays the cheapest ground rate. Retail prices at Amazon, Target and Walmart were not checked and may differ.
Warranty is the weak spot. The shop's own FAQ gives personal-use breast pumps one year of cover and then carves out accessories, pump parts and the Harmony specifically at 90 days; Medela's US warranty page lists eWarranty documents for five electric models and nothing for the Harmony at all. The shop takes returns of unopened products only, for 90 days, a 20% restocking fee comes off the refund, and you pay return shipping. Opened pumps are not returnable for hygiene reasons, so a shield that turns out to be the wrong size is not grounds for sending the pump back.
Skip it if pumping is a schedule, not an exception
Medela itself says a parent who pumps frequently belongs with a double electric pump, and it cites its own study that pumping both sides at once yields up to 18 percent more milk. A manual single pump means two sessions per pumping, each driven by a hand that will tire, and there is no timer, no memory of the rhythm that worked and no way to do anything else while it runs. For exclusive pumping or a daily work routine, the Harmony is the wrong category, not a bargain.
Also skip it if a good electric pump is already in the house and only want something to catch letdown on the idle side. That is the Haakaa's job, it costs $19.99, and it has one part to wash instead of eight. Buy the Harmony when the gap in your kit is a pump that works with no outlet, weighs nothing, fits in a bag, and can be replaced part by part; on that brief, at $31.49, it is a straightforward choice.
How we put this together
Built from the product pages and listings below, without test scores or results we have not measured. Specifications and prices change, so check the original page for the exact model, current price, delivery, and returns.
- Medela US: Harmony manual breast pump (opens in a new tab)
- Medela Shop (breastfeedingsupply.com): Harmony Manual Breast Pump (opens in a new tab)
- Medela Shop: Shipping and returns (opens in a new tab)
- Medela: Harmony instructions for use (PDF) (opens in a new tab)
- Medela US: Warranty (opens in a new tab)
- Haakaa USA: Generation 2 Silicone Breast Pump with Suction Base, 4 oz (opens in a new tab)
