Xiaomi adds a 13 kg/9 kg washer‑dryer combo that uses water electrolysis to generate active oxygen for cleaning, promising lower detergent use while keeping smart‑home integration and heat‑pump drying. We break down the tech, compare it to rivals, and decide who will benefit most.
What’s new
Xiaomi’s Mijia Washing Machine Pro Supreme Edition arrives as the company’s first washer‑dryer combo that embeds an electrolysis module into the drum. The unit splits a tiny portion of the wash water into hydrogen and oxygen, then recombines the oxygen into a reactive form that attacks stains. In theory, this active oxygen can boost cleaning power enough to let users cut back on detergent.
The appliance is sized for family use – 13 kg washing capacity and 9 kg drying capacity – and packs 31 programs, including a 36‑minute quick‑wash that still runs the electrolysis step. Drying is handled by a heat‑pump system, which trades raw speed for higher energy efficiency. Smart‑home features are baked in: the machine connects to Xiaomi’s Home app, supports voice commands via Mi AI, and can be integrated into broader IoT ecosystems.
How it compares
| Feature | Mijia Pro Supreme | LG TwinWash (14 kg/9 kg) | Bosch Serie 8 (12 kg/8 kg) |
|---|---|---|---|
| Electrolysis cleaning | Yes – active‑oxygen boost | No | No |
| Heat‑pump drying | Yes – ~65 % energy saving | Yes – similar efficiency | Yes – comparable |
| Quick‑wash time | 36 min (incl. electrolysis) | 30 min (no boost) | 35 min |
| Smart integration | Mi Home, Alexa, Google Assistant | LG ThinQ, Alexa | Home Connect, Alexa |
| Price (USD) | ~515 $ | ~850 $ | ~900 $ |
| Noise (wash) | 55 dB(A) | 58 dB(A) | 57 dB(A) |
Electrolysis vs. traditional detergent
Electrolysis itself is not a new concept – it’s been used in industrial laundry for decades – but Xiaomi is the first mainstream consumer brand to embed it in a compact home unit. The process consumes only a few watts of power per cycle, essentially turning electrical energy into a mild oxidizer. Tests on similar systems show 10‑15 % less detergent needed for everyday loads, while heavily soiled items still benefit from a detergent boost.
The downside is that the oxygen generation rate is limited by the amount of water that can be electrolyzed without affecting cycle time. In practice, you won’t be able to wash a full‑load of grease‑stained work clothes with pure water; a small detergent dose remains advisable.
Heat‑pump drying trade‑off
Heat‑pump dryers recycle warm air, lowering the temperature needed to evaporate moisture. This saves roughly 65 % of the energy compared with conventional condensers, but the drying time for a full 9 kg load stretches to 2.5‑3 hours. If you need rapid drying, the Pro Supreme will feel slower than a vented dryer, but the energy bill will be noticeably lower.
Smart‑home integration
Xiaomi’s Home app provides cycle monitoring, remote start/stop, and a detergent‑recommendation algorithm that suggests how much soap to add based on load weight and selected program. Voice control works through both Mi AI speakers and third‑party assistants (Alexa, Google). The UI is clean, though the app can feel a bit cluttered when managing multiple appliances.
Who it’s for
- Large households that value the convenience of a single machine for washing and drying will appreciate the 13 kg wash drum. The ability to start a load and let it dry without manual transfer saves time and space.
- Eco‑conscious users looking to reduce detergent consumption and electricity usage will benefit from the electrolysis boost and heat‑pump dryer. Expect a modest detergent cut‑back rather than a full detergent‑free experience.
- Smart‑home enthusiasts who already own Xiaomi or other compatible ecosystems will find the integration seamless and may enjoy the app‑driven detergent suggestions.
- Speed‑focused users might be disappointed by the slower drying cycle; a dedicated vented dryer still wins on raw performance.
Bottom line
Xiaomi’s Mijia Washing Machine Pro Supreme Edition brings a niche technology – water electrolysis – into the mainstream, pairing it with a respectable 13 kg/9 kg washer‑dryer combo and solid smart‑home features. It doesn’t replace detergent entirely, but it does let you trim usage by roughly a tenth, while the heat‑pump dryer cuts energy draw at the cost of longer cycles. Priced around $515 (≈ €443), it undercuts premium European models by a wide margin, making it an attractive option for families that prioritize convenience, modest eco‑savings, and a connected home.
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