Sunny Health & Fitness Magnetic Rower Review (SF-RW523021)

The Sunny Health & Fitness SF-RW523021 is the rowing machine you buy when noise is the problem you are solving. Magnetic resistance means it makes almost no sound, and Sunny has paired that with a 125cm dual rail and a set of ergonomic touches that are unusually thoughtful for around £399. It holds a 4.4-star average from more than 300 ratings on Amazon UK at the time of writing, which is a solid base of feedback for a machine this new. The verdict is that it does exactly what it sets out to do, and that what it sets out to do will not satisfy everyone: a magnetic rower is a quiet cardio machine, not a rowing simulator, and no amount of good engineering changes that.

Sunny Health & Fitness is worth knowing about before you buy. They are a high-volume budget brand whose cheaper rower has racked up tens of thousands of reviews, and this model is a deliberate step upmarket for them: longer rail, better seat, more resistance levels, roughly double the price. The extra money is visible in the parts you touch.

Who it is for

This rower is for people who live in flats, terraced houses or shared homes, and for anyone who wants to row early in the morning or late at night without an argument. That is a large and badly served group, because the best-regarded rowers are air rowers and air rowers are loud.

It is also a reasonable pick for beginners who want low-impact full-body cardio and are not chasing split times. Rowing loads your legs, trunk, back and arms in one movement while your feet stay planted, which is why it is such a useful machine for people whose knees have opinions about running. Ergometer studies confirm the stroke recruits hip and trunk musculature heavily throughout the drive (EMG assessment of hip and trunk muscle activity in rowers), and it is an efficient way to bank the 150 weekly minutes of moderate activity the NHS recommends (NHS physical activity guidelines for adults).

It is the wrong machine for anyone who has rowed on a Concept2, wants to train seriously for rowing, or cares about comparable split times. Those people should accept the noise and buy an air rower. Our rowing machine vs cross trainer and what type of rowing machine is best guides go deeper on that decision.

Build and ergonomics

This is where the price increase over Sunny's cheap rower shows. The dual rail system is the headline: two rails rather than one, with plastic covers over them, which keeps the seat tracking straight and stops the metal-on-metal scrape that budget rowers develop after a few months. The seat rolls quietly and stays quiet, and that is not a given at this price.

The ergonomic details are the pleasant surprise. The footplates semi-pivot, so your heel can lift naturally at the catch instead of your ankle being forced into a fixed angle, which is the sort of thing you do not notice until you use a rower without it. The handle is curved and covered, which keeps your wrists in a neutral line rather than cocked, and the moulded seat is padded enough for a 30-minute session without going numb. The device holder is positioned so it does not muffle your phone speaker, a small thing that suggests someone actually used the machine before shipping it.

At 31kg it is light enough to shift alone, and it stores upright against a wall. Assembly is widely reported as straightforward and quick.

How it rows

For steady-state cardio, it is pleasant. The magnetic resistance is smooth, the 16 levels give you fine control rather than the coarse four or five steps of cheaper machines, and the long rail means you can finish the drive properly instead of running out of track. Set it to a middle level, row for half an hour, and it does the job with no drama and almost no noise.

The limitation is structural, not a fault of this machine. Magnetic resistance is fixed: level 8 pushes back exactly as hard whether you pull gently or explosively. Real rowing does not work like that, and neither do air or water rowers, where the flywheel spins faster as you pull harder and shoves back proportionally. That feedback loop is what makes an air rower feel like a boat and what lets you sprint on one. On a magnetic rower, pulling harder just means the handle arrives sooner. You can still get a decent workout by raising the resistance and the stroke rate, but the ceiling is lower and it never feels like rowing.

This is the trade you are making, and it is worth being blunt about it: if noise is not a constraint in your home, £399 buys a very capable air rower and you should buy that instead. Our best rowing machine UK guide covers those. If noise is a constraint, this is one of the better ways to solve it.

The 135kg user limit is the other spec to check. It is adequate but not generous, and lower than several rivals.

App, monitor and value

The LCD monitor covers the basics properly: time, stroke count, distance, calories, total strokes, strokes per minute, time per 500m and pulse. That 500m split is the number that matters for pacing, and having it means you can actually structure intervals rather than just rowing until bored. It is not a Concept2 PM5, the readings are estimates rather than calibrated data, and the calorie figure in particular is guesswork, as it is on every machine at this price.

SunnyFit connects over Bluetooth and adds trainer-led workouts and scenic rows, with a free tier available. It is a nice extra and better than most budget-brand apps, but the machine is complete without it, and nothing gets disabled if you never open it. That is a meaningfully better arrangement than rowers that hide their resistance control behind a subscription.

On value, the picture is clear once you accept the trade. Around £399 is fair for a quiet magnetic rower with this rail length and these ergonomics, and it undercuts most magnetic rowers that match it on those points. It is poor value if you evaluate it against air rowers on feel, and excellent value if silence is a requirement rather than a preference. If your budget is tighter, our best budget rowing machine UK guide has cheaper options, and you can browse everything in our rowing machines section.

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