TL;DR - The Dreame Mega Pro is a freestanding bottom-freezer fridge that squeezes 456 litres into a 59.5 cm wide body, with a drawer that switches between 4, 2, 1 and -1 C. Dreame France lists the class D 456 litre model at 749 euro. Everything below comes from Dreame and one French data sheet. I couldn't find an independent lab test, and Dreame is new to large appliances, so durability is unknown.
Updated October 2026: An earlier version of this page described a "Plum Mega Pro" with 700 litres, a 91 cm French door, four zones and an ice maker, and it reported two months of testing with a calibrated probe. None of that matches the product that exists: the Mega Pro is Dreame's 456 litre fridge, 59.5 cm wide, with one switchable drawer. Nobody on this site tested it. The page was rewritten from Dreame's specification table and a French data sheet, and the star rating was removed.
Cross-shopping? This is one specific product. For the wider market see the smart fridge buying guide and the best smart refrigerators 2025 round-up. If you want a connected French door instead, the Samsung Bespoke AI French Door review covers that side of the market.
Most "big fridge" reviews sell you on litres. The more interesting number on the Mega Pro is 59.5, the width in centimetres. That's the gap a standard kitchen run already has, so the question isn't whether 456 litres is a lot. It's whether you get that volume without rebuilding a kitchen.
What Are the Dreame Mega Pro Specs?
Dreame sells the Mega Pro in several variants that differ in height, volume and energy class, so check the model code before you compare prices. The figures below come from Dreame's product page and specification table, with the class C 456 litre column filled from the Labo Maison data sheet.
| Spec | 456 L class D | 456 L class C | 409 L class C |
|---|---|---|---|
| Model code | DRB450WMBDEU | DRB450WMBCEU (Darty listing) | DRB400WMBCEU |
| Net capacity | 456 L | 456 L | 409 L |
| Fridge / freezer | 314 L / 142 L | not listed in sources | 267 L / 142 L |
| Size (W x D x H) | 595 x 680 x 2,010 mm | 595 x 680 x 2,010 mm | 595 x 680 x 1,850 mm |
| Energy class | D | C | C |
| Energy use | 237 kWh/year | 190 kWh/year | 183 kWh/year |
| Noise | 39 dB | 39 dB (Dreame), 37 dB (Labo Maison) | 39 dB |
| Weight | 84 kg | not listed in sources | 84 kg |
| Cooling | No Frost, inverter compressor | No Frost, inverter compressor | No Frost, inverter compressor |
| Door | Reversible | Reversible | Reversible |
| Compressor warranty | 20 years | 20 years | 20 years |
| Price seen | 749 euro (Dreame France, 9 Oct 2026) | 849 euro launch price (Labo Maison) | 699 euro launch price (Labo Maison) |
The class D and class C 456 litre models share a body. The class C one uses less electricity, and the 849 euro launch price was quoted with a 100 euro launch discount that ran until 5 March, according to Labo Maison. Prices move, so treat the last row as a snapshot rather than a quote.
Where Do the Extra Litres Come From?
Dreame calls it SpaceBoost: thinner insulation foam and a reworked internal structure. The company claims about 20 percent more usable volume than competing fridges of similar outside dimensions, based on a comparison with models on sale up to November 2025. That's a manufacturer's comparison, and Dreame's own footnote says real capacity varies with configuration and use.
Do the arithmetic and the claim is plausible rather than proven. A fridge 59.5 cm wide and 68 cm deep that reaches 201 cm leaves about 0.4 square metres of floor, which Dreame also states. Thin walls are how you get 456 litres out of that footprint. The trade-off nobody advertises is what thin walls cost in insulation. The place to look for it is the label figure of 190 or 237 kWh a year, and compare that with a bulkier 450 litre fridge before you assume it's free.
What Is the FreshFlex Drawer?
There's one switchable drawer, not four zones. A FRESH FLEX button cycles it through four settings, according to Dreame: 4 C for most fruit and vegetables, 2 C for dairy and drinks, 1 C for delicate foods, and -1 C for raw meat you plan to cook soon, which Dreame describes as a gentle freeze.
Is it useful? On paper, yes. A 0 to 1 C compartment is the usual answer to fresh fish and meat that doesn't last. What I can't tell you is how well it holds -1 C without freezing the edge of a steak, because nobody who's published a test has measured it. That's the single claim I'd want a lab to check.
The rest of the cooling story is conventional. Several fan vents spread cold air across the shelves, a charcoal module called AeroFresh filters odours, and No Frost means no manual defrosting in either compartment. Dreame doesn't publish a humidity figure, and fan-cooled fridges tend to dry out unwrapped salad faster than static ones, so keep leaves in a bag or box.
How Much Energy and Noise Does It Use?
The numbers come straight from Dreame's specification table. The 456 litre class D model is listed at 237 kWh a year. The class C model is listed at 190 kWh, and the 409 litre class C at 183 kWh. At an assumed 0.30 euro per kWh, that's about 71 euro, 57 euro and 55 euro a year. If your tariff is different, scale the figures yourself.
Noise is the one place the sources disagree. Dreame quotes 39 dB, and Labo Maison's data sheet shows 37 dB for the class C model. Two decibels is barely audible, and it may just be rounding or a difference between variants. Neither number tells you how the fridge sounds in a quiet open-plan kitchen at 2 a.m. An inverter compressor that ramps instead of switching on and off is the usual reason these fridges feel quieter than the number suggests. That's an expectation, not an observation.
Who Does It Suit?
Take the tall 456 litre model if you have a standard 60 cm gap and want a freezer in the same body. Why pay for height you can't fit under a cabinet, though? Take the 409 litre one if the ceiling or a cabinet above the fridge caps you near 185 cm. It's 267 litres of fridge against 314, which is the real difference between the two.
Skip it if you want an ice maker, a water dispenser or app control. Dreame's pages list none of them, and the control panel is a physical one with a temperature display, quick-cool, quick-freeze, holiday and auto modes. A single person or a couple who shops several times a week doesn't need 456 litres in any case.
What Has Nobody Measured Yet?
This is the part that should shape the decision. Dreame is known for robot vacuums and has only recently started selling large appliances, so there's no multi-year record of how the compressor, the door seals or the drawer mechanism hold up. The 20 year compressor warranty is unusual and worth reading closely before you rely on it. The product itself carries a 2 year warranty, according to Labo Maison.
I also found no independent test that measured real temperature stability, energy use or noise. Retailer pages show only a handful of owner reviews (Darty lists four), which is a thin basis. If you buy one, take the 20 year compressor cover as the reassuring part and the lack of third-party testing as the reason to keep the receipt.
What Does the Manufacturer Say About Installation?
Leave at least 5 cm behind the fridge and 3 cm on each side, according to Dreame's product page. Keep it away from ovens, radiators and direct sun. After delivery, stand it upright and unplugged for 2 to 4 hours so the cooling system settles, then run it empty for 2 to 3 hours before loading food. The door is reversible, so check which way it needs to open before you start moving furniture.