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Guide · 4 minutes read

What really matters when buying a rollator.

Seat height, wheels, brakes, weight: four measurements decide whether a rollator becomes part of everyday life or stays in the hallway. What you should know before your appointment at the medical supply store.

VOSS healthcare · Last reviewed September 2026

A woman walks with the ello through a bright hall with a staircase and glass railing.

A rollator is rarely bought out of curiosity. Usually there is a reason behind it. A fall, an operation, a route that has suddenly become too far. That is exactly why the decision is often made quickly, and exactly why the rollator ends up standing in the hallway.

Four measurements decide whether that happens. They appear on every data sheet, but rarely where you need them when comparing.

Seat height

The seat height must match your leg length: when you sit, both feet should rest flat on the floor and your knees should form roughly a right angle. Unlike the handle height, it cannot be adjusted on many models.

Too low means you can no longer get up on your own. Too high means you perch on the edge instead of sitting. You only notice either after the first week.

Wheels

The ground decides, not the catalogue. Small hard wheels roll well on smooth floors and get stuck in every paving joint. Large wheels take joints and edges in their stride.

So at the medical supply store, do not just ride over the carpet, go out the front door. Cobblestones, a kerb, a slight slope. Three metres of that tell you more than any brochure.

Eine Frau hebt den gefalteten ello in den geöffneten Kofferraum eines Kombis.

Brakes

The brake must grip with little force, even when your hands are cold or your fingers are stiff. It should hold the rollator, not just slow it down. Test that on a slope, not on the flat. And it must lock: a parking brake is essential as soon as you want to sit down.

Weight and folded size

A rollator that does not fit in the boot halves your range. Pay attention to both: the weight you have to lift, and the size when folded. Materials such as aluminium or fibre composite strike the balance between stability and weight.

What is often forgotten

Reflectors and lights are not accessories. Once the clocks go back, it gets dark in the afternoon. Adjustable handles determine your posture, and with it your shoulders and neck. And when it comes to service: two years of statutory warranty is the minimum. More important is whether someone is reachable when something sticks.

And what if there is a drive?

An electric rollator changes nothing on this list, it comes on top. The drive takes the strain out of climbs and brakes with you on slopes. But seat height, wheels and folded size still decide whether the rollator becomes part of everyday life.

The difference shows where a route used to end: at the kerb, on the climb, on the way home.

Frequently asked questions on this topic

Which seat height is the right one?

You can tell the right seat height when sitting: both feet rest flat on the floor and your knees form roughly a right angle. The ello has a seat height of 553 millimetres.

Which wheels are suitable for cobblestones?

Large wheels take joints and edges in their stride instead of getting stuck in them. The ello has 11-inch wheels with solid PU tyres at the front.

How heavy may a rollator be?

The ello weighs 12.5 kilograms and is made of high-tech glass fibre composite.

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