The best portable dishwashers under $400.

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The portable-dishwasher shelf splits roughly into two prices: a crowd of tank-fed minis under $300, and a smaller band that pushes toward $400 for a bigger rack, a faucet connection that doesn't need refilling, or a feature the cheap machines skip entirely. The four machines below sit inside that upper band — priced between $339 and $369 at the time we checked — and each earns its place there for a different reason: one for its place-setting count, one for a water softener nothing cheaper offers, two for keeping the tank option that pricier faucet-only machines drop.

None of them is a full 18-inch dishwasher on wheels; all four are countertop machines, sized to sit beside the sink rather than roll across the kitchen. If you've already decided you want the bigger class instead, the full buyer's guide covers where an 18-inch model fits and what it costs. This page is for the reader asking a narrower question: at $400, what does a countertop dishwasher actually get you that a $250 one doesn't, and which of the current options is worth it.

Spend $250 and you're almost always in tank-only mini territory: a five-litre reservoir, four place settings or fewer, and a listing that quotes "30+ dishes" instead of a real count because the count wouldn't help the sale. Spend closer to $400 and three things start showing up that the cheap shelf mostly skips.

The first is a genuine place-setting jump. Of the four machines here, the Midea Countertop Dishwasher is the only one that states a six-place-setting capacity outright — up to 70 pieces, roughly what the entry-level $250 machines can't touch regardless of how their marketing rounds up. The second is certification: Midea's listing carries an ENERGY STAR designation, a spec that's routinely absent from budget listings and worth checking against our separate rundown of the best ENERGY STAR portable dishwashers if efficiency is the deciding factor for you.

The third is a feature that has nothing to do with washing more dishes and everything to do with the water itself. The HAVA Countertop Dishwasher is built around an integrated water softener with a setting you match to your local hardness — a feature that essentially does not exist below this price band, because it adds a component the $250 machines are built to avoid. It's the clearest example of $400 buying a problem solved rather than a rack enlarged.

One thing worth being straightforward about: this band is also where some listings in the category start advertising a stainless-steel interior tub rather than plastic, which changes staining, odor retention and how well a load dries — the subject of our guide to stainless-tub portable dishwashers. None of the four machines in this roundup state their tub material in the published specification, so we're not going to claim one for them here. If a steel tub is the deciding feature for you, confirm it on the listing before you buy, or start from that dedicated guide instead.

A place setting is a defined unit — a dinner plate, a side plate or bowl, a glass, a cup and saucer, one person's cutlery — not a marketing word, which is why it's worth reading past the "30+ items" phrasing some of these listings still use.

Midea is the only one of the four that quotes a place-setting figure outright: up to six settings, around 70 pieces, plates to 10 inches, sized H17.25 × W22 × D20 inches. That width matters as much as the capacity — 22 inches is a serious stretch of countertop, and it's worth measuring your run before ordering, especially if the machine has to share space with a coffee maker or a drying rack. Our guide on where to put a portable dishwasher when there is no room walks through the measuring routine in more detail.

The NOVETE Portable Countertop Dishwasher is more conservative and more transparent about it: four full place settings, spelled out as four serving bowls, four cups, four small plates, four dinner plates, and seven each of spoons, forks and knives — 34 items total, and a listing that enumerates rather than rounds. It fits 12-inch plates if you load them at an angle, and measures 16.9 × 16.8 × 18.1 inches, a footprint closer to the cheap tank minis than to Midea's wider chassis.

The AIRMSEN Portable Countertop Dishwasher quotes "40+ items" and 12-inch plates at a slight angle, in a similar 16.75 × 16.86 × 18.05-inch body, but it does not translate that figure into a place-setting count the way NOVETE does. Forty-plus items sounds larger than NOVETE's spelled-out 34, but the two numbers aren't counted the same way, so treat it as a rough signal rather than a like-for-like comparison — ask the listing directly if the exact count decides your purchase. The HAVA Countertop Dishwasher publishes neither a place-setting number nor an item count; its listing talks about an "adjustable tableware basket" with "larger capacity" and stops there. That's not necessarily a smaller machine, but it is one you can't size against the other three on this specific number.

For a household of two, four honestly-counted settings is close to one full day of dishes if you're not throwing a dinner party; six is the point where you stop planning meals around when the machine last ran. Which of those matters to you should decide more of this purchase than the price gap between them does.

Paying more doesn't automatically buy you a tank — in this roundup, it's almost the opposite. NOVETE and AIRMSEN, the two least expensive of the four at roughly $339, both keep the dual-mode design common further down the shelf: a five-litre built-in tank you fill by hand, or an inlet hose that connects to a standard faucet. Midea, at the top of the capacity chart, drops the tank entirely and connects to a faucet only. HAVA's listing doesn't specify a water source at all, which is worth confirming directly before you order if a tank matters to you.

The trade-off inside tank mode hasn't changed just because the price went up: five litres is one cycle's worth of water, so you're refilling by hand before every wash on the NOVETE and AIRMSEN, and that ceiling is part of why both machines top out well under Midea's six-place-setting claim. Faucet connection removes the refilling step entirely but needs a tap with a removable aerator and standard threads — pull-down and pull-out sprayer faucets, now common in newer kitchens and most rentals, generally won't accept the adapter. If that describes your kitchen, Midea's extra capacity is moot; the tank-equipped NOVETE or AIRMSEN is the only version of this purchase that works at all. Our breakdown of how much water a portable dishwasher really uses works through what a five-litre tank fill actually covers per cycle, and where that number comes from.

None of the four machines here plumb into a waste line — all of them, tank or faucet, pump dirty water out through a drain hose hooked over the edge of the sink, so even a tank model still needs to live within hose reach of a drain point, roughly level with or above it.

None of the four machines in this roundup lists a heated drying element, which is normal for the category — countertop dishwashers dry with residual heat, air circulation, or a timed extra cycle rather than the heating coil a full-size built-in uses. At $400 that hasn't changed; what's changed is how each maker tries to compensate.

Midea pairs its wash cycles with an Extended Dry function, meant to run longer than the standard programs to push more residual heat through the load — useful given the machine's larger six-setting rack has more surface area to dry. AIRMSEN takes a different approach: an extra 60 minutes of drying time layered on top of the wash cycle, plus 72 hours of ventilated interior storage afterward, which addresses dampness by managing it after the fact rather than eliminating it during the cycle. NOVETE's listing doesn't call out a dedicated dry function beyond its Baby Care/Heavy program's 167°F wash temperature, which leaves more residual heat in the tub than a cooler cycle would. HAVA's listing doesn't mention drying at all, which — like its unstated water source — is worth checking on the live listing rather than assuming.

The honest expectation across all four: plastic items and anything with a concave surface will hold water droplets more often than not, rinse aid helps because these machines lean on it more than a full-size dishwasher does, and a longer dry setting trades time for drier plates rather than eliminating the trade-off. Our guide to why a portable dishwasher cycle takes two hours breaks down where that time actually goes, including the drying phase. A tub that stays damp between loads is also the leading cause of the smell readers ask us about most, which is covered start to finish in why your portable dishwasher smells, and how to stop it.

Four hundred dollars is close to where the countertop class runs out of room to grow. Six place settings, an integrated softener and a longer dry cycle are real upgrades, but all four machines here are still sealed tubs sized for a worktop, not full dishwashers on their own footprint. If your household has outgrown six settings — three or more people cooking daily, or a habit of running the machine twice a day regardless of which of these four you own — the next step isn't a pricier countertop model, it's the other class entirely: an 18-inch freestanding dishwasher on castors, built around eight place settings, that rolls to the sink and back rather than living permanently on the counter.

That class runs closer to $585–$690 than to $400, so it's a different budget conversation, not a marginal upgrade — you're paying for roughly two more place settings and your counter back. It also draws more current during its wash-and-heat cycle, worth checking against your kitchen's circuit before committing; our guide on what a portable dishwasher needs from your outlet covers what to confirm either way. If you're not sure which class fits your kitchen, the full portable dishwasher buyer's guide compares both side by side.

Short version: stay in the $400 band if your faucet won't take an adapter, floor space is limited, or four to six settings covers your household. Stretch to 18-inch only once the extra $200–$300 buys a real, recurring problem it solves — not just a bigger number on the box.