Best Sihoo Ergonomic Chairs Between $300 and $600 in Australia (2026 Guide)

Most people searching for the best ergonomic chair in Australia have the same problem. The sub-$300 options feel flimsy after a few months, and the premium chairs above $800 feel like a lot to spend before you even know if ergonomics will make a difference for you. That leaves a bracket between roughly $300 and $600 that offers genuine quality without the premium price tag, and it is exactly where three of Sihoo's most popular models sit.

The Sihoo M57 starts at $329, the Sihoo Vito M90 at $379, and the Sihoo V1 at $529. On paper they are all Sihoo ergonomic chairs with mesh backs, adjustable lumbar support, and headrests. In practice they are built for quite different users, and choosing the wrong one for your body type or daily hours of use is the most common buying mistake in this category.

This guide breaks each chair down honestly, compares them head to head on the features that actually affect comfort, and helps you make the right call for your situation.

A Quick Look at How the Three Chairs Stack Up 

Here is a thorough side-by-side comparison of all the chairs based on the elements that are most important for everyday comfort and long-term support before we look at each one separately. 

Prices sourced from sihoo.com.au — sale pricing as of April 2026. Check the website for current offers.

Sihoo M57: The Smart Place to Start 

What It Has and Who It Is Made For 

The Sihoo M57 is the cheapest of the three at $329, but it offers a lot more than that. From the seat pan to the top of the backrest, this chair is made of mesh that lets air flow through. This makes it different from cheap foam-padded chairs that trap heat and become uncomfortable after an hour.

You can move the lumbar support on the M57 up or down to fit your spine and push it forward to increase pressure. A lot of chairs in this price range either don't have this feature or just have it in a fixed format. The headrest can move up to 8 cm and rotate 45 degrees. The 3D armrests can also move up, down, forward, and rotate.

The backrest can lean back to 126 degrees, which is enough for a nice break without making you feel like you're going to fall out of the chair. The tilt mechanism works smoothly, and the seat height adjustment is a typical pneumatic lift.

The M57 is great for people who work from home and sit at a desk for four to six hours a day, students who study for lengthy periods of time at a desk, and anyone who is making their first real ergonomic upgrade from a dining chair or a simple office chair. It's also the best choice for organizations who want to increase seating at more workstations without spending a lot of money on each seat. In all of these situations, the M57 is truly ergonomic. 

Where the M57 Doesn't Work Well

The M57 does not let you change the depth of the seat. If you are much shorter or taller than normal, the length of the seat pan may not be right for your legs. People who are taller may feel that the seat isn't nearly long enough to support their thighs fully, and people who are shorter may feel pressure behind their knees at the front edge.

You can't raise or lower the backrest height to match your spine posture beyond the built-in adjustment range. Most people who are ordinary height won't have any problems with this, but if you are over 190 cm, you should know.

The guide to ergonomic chairs for tall people goes over the exact measurements and features that are most important when normal sizing doesn't quite fit your frame. This is especially helpful if you are taller than average and worried about fit. 

The Adaptive Step Up is the Sihoo Vito M90

What It Has to Offer and Who It Is Made For

The Sihoo Vito M90 costs $379 and has a big improvement over the M57 in one important area: the lumbar support. You have to manually move the lumbar cushion on the M57, but the M90 has an adaptable elastic lumbar system that changes its resistance based on your body weight and the angle you are sitting at. You lean back, and it reacts. It responds when you sit up. You don't think about it.

This is more important than it seems. After getting up and sitting down again, most people forget to adjust their lumbar support. This means that the M57's manual system typically ends up sitting in a fixed position that doesn't match the user's posture anymore. The M90's adaptive mechanism gets rid of the variable completely.

The M90 also has three levels of backrest height adjustment, so you can raise or lower the whole back panel to better fit your torso length. For anyone who is taller or shorter than normal, this is a big improvement. The recline goes to 130 degrees, which is a little more than the M57. The tilt mechanism has a tension lever that lets you choose how much resistance you feel when you lean back.

TechRadar and Creative Bloq both said that the M90's adaptive lumbar system is its best feature. They said that it works far better than fixed or manual lumbar designs that cost around the same. The base is made of 350mm aluminum alloy and the wheels are approved for use on both carpet and hard floors.

The M90 is the best chair for persons who spend six or more hours a day at a desk, have mild to moderate lower back pain, and want a chair that automatically supports good posture without needing to be adjusted by hand all the time. It's also a good choice for companies where more than one person of different heights uses the same chair, since the backrest height adjustment lets it fit a larger variety of users. 

What the M90 Can't Do

The M90, like the M57, does not let you change the depth of the seat. The armrests can move up, down, forward, and rotate, however they can't be adjusted from side to side. This is good for most individuals, however people with wider or narrower shoulders may find it a little annoying as the lateral posture is permanent.

Independent evaluations have also said that the armrest quality on the M90 range is the part of the chair that feels the least premium. The arm pads are coated with 3D PU and work, however the space between the joints is a little bigger than on the V1. For a chair at this price this is expected, but it is worth knowing if armrest feel matters a lot to you.

After you set up any of these chairs, the way you modify them really changes how they work for your body. No matter which model you choose, you should read this step-by-step tutorial on how to properly adjust your ergonomic chair when it arrives. 

The Sihoo V1 is the most customizable in this group

What It Has and Who It Is Made For 

The Sihoo V1, which is on sale for $529 instead of $799, has the most features and the most options for personalizing. It is also the most distinct from the other two in terms of who it works best for.

The best thing about the V1 is its 4D adjustable lumbar support, which can change height, depth, and angle. There are five places for the backrest to be lifted or lowered, not just three. This means that those with longer torsos can get the right coverage. The seat cushion also moves forward and backward to change the depth of the seat. This is the only real change that the M57 and M90 don't have. This is important: if your legs are too long for the seat, it will create pressure behind your knees and make you sit away from the backrest, which will lose any contact with your lower back. This problem can be fixed by changing the depth of the seat.

The armrests can slide in and out as well as up, down, forward, and back, which is the typical range. The chair reclines to 135 degrees, and it seems like a high-end chair for the price. The "Dragon Pattern" breathable mesh on the backrest lets air circulate well, and the S-shaped bionic backrest design is made to fit the natural curve of the spine better than a flat back panel.

The V1 is the best choice for persons who have trouble with their body proportions, especially shorter people who need a chair that fits their body better than one that is made for an average physique. It is also a fantastic choice for professionals who want a chair that looks and feels more like an executive chair, as well as for people who have already tried budget chairs and discovered that they were uncomfortable since they couldn't adjust them. 

Where the V1 Doesn't Work

The V1's height range is its biggest problem. Many Australian consumers have said that the V1 doesn't work properly for anyone who are taller than about 175 cm, including on ProductReview.com.au. The dimensions of the backrest and the variety of seat heights are best for those who are up to that height. If you are taller over 175 cm and thinking about buying the V1, make sure to carefully compare your measurements to the ones that are already out there.

The V1's seat is made of foam instead of mesh. This design option is meant to make the seat feel more luxury, but it does imply that the seat keeps more heat than the M57 and M90's full-mesh designs. The M57 or M90 would be a better choice for people who operate in a warm home office without air conditioning throughout the summer in Australia.

The V1 can only hold a maximum weight of 120 kg, but the M57 and M90 can hold 150 kg. You should check to see whether this applies to you. 

Head to Head: How They Compare on the Features That Matter

Support for the lower back 

Most people agree that the M90 is the best in this category. You don't have to change it manually since its adaptive elastic system responds to how you sit instead of how you set it up at the beginning of the day. The M57's manually adjustable lumbar is a decent value for the price and better than a set cushion, but you have to remember to move it when you change chairs or positions. The V1's 4D lumbar is the most accurate of the three, but it requires the greatest effort to set up correctly and works best for people who take the time to do it well. 

Range of adjustability 

The V1 is the best choice because it has adjustable seat depth, a backrest that can be set to five different heights, and armrests that can move in four directions. The V1 has the most dials to spin if you are between 155 and 175 cm and want the most customizable chair in this range. The M90's 3-level backrest height and the M57's robust baseline adjustment are both good enough for people who are shorter than that. The main point is that being able to change something only makes it better if it fits your body's demands. 

Airflow 

The M57 and M90 both have mesh that lets air flow through from the seat to the backrest, which makes them better for hot Australian weather. The foam seat cushion on the V1 holds more heat, which is acceptable for cooler places or offices with air conditioning. However, in a home office during the summer in Sydney or Brisbane, it gets uncomfortable. If you get hot easily or operate without air conditioning, the mesh seat is the best choice. 

How well it is built and how long it lasts 

The BIFMA and SGS certifications on all three chairs show that they are safe and long-lasting enough for use in an office. Both the M57 and M90 can hold 150 kg and come with a 3-year warranty. The V1 has a 120kg rating, which is a little lower than the V2's, but the frame and base are both made to a high standard. For normal office use within those weight limits, all three are made to endure the guarantee time and longer with the right care. 

Value for Your Money 

In this price range, the M57 offers the best value. You can acquire a chair for $329 that has features that most competitors in the $400 to $450 range don't have. The M90 is a big step up from the M80 for $50 more. The adaptable lumbar system is a big improvement, and anyone who sits for six or more hours a day should get it. The V1 is a terrific deal at $529 compared to its initial price of $799, but it only offers real value to people whose height and body proportions are within its designed range. Outside of that range, paying more for a chair that doesn't fit as well isn't worth it at any price. 

Which Chair Is Best for You

By Money

About $329 for the Sihoo M57. The greatest completely ergonomic chair in Australia for less than $350. Full mesh, adjustable headrest, lumbar support, and 3D armrests. Provides everything that the basics need.

Sihoo Vito M90 costs about $379. The $50 improvement is the adaptable lumbar system. The M90 is worth the extra money over the M57 in the first week for anyone who sits for six hours or more a day.

The Sihoo V1 costs about $529. A chair that feels more luxurious and can be customized for the correct person. Not an upgrade for everyone over the M90. Only a better choice if the seat depth adjuster and 4D armrests fix a specific fit problem you have. 

By Body Type

The M90 is the greatest choice for people who are between 165 and 180 centimeters tall. The adaptive lumbar takes care of the normal changes in how you sit over the day, and the backrest height range covers most torso lengths in this height band.

If you're shorter than 165 cm, you should really think about the V1. Shorter persons can pull the seat forward to relieve pressure behind their knees, which is the most common comfort issue with traditional office chairs.

None of these three seats are perfect for people who are taller than 180 cm. The M57 and M90 can fit taller people in their seat height ranges, although chairs made for the average range may not be comfortable enough for taller people because the backrest and seat depth are not as deep. If you're taller over 180 cm, you might want to choose the Sihoo Doro C300 or S300.

By Daily Hours of Use

If you work less than 4 hours a day, M57 is more than enough. If you work 4 to 6 hours a day, M57 or M90, depending on how sensitive your back is.

6 to 8 hours a day: M90 is the best choice because the adaptable lumbar helps all day long. 8 hours or more a day or persistent back problems: Think about getting the Sihoo Doro C300 instead. It has a dynamic lumbar and split backrest that are made for long everyday use. 

If you spend eight or more hours in your chair daily, it is also worth reading the full guide to the best office chairs for long hours of sitting, which covers what the research says about sustained seated comfort and what chair features deliver meaningful results across a full workday.

For Office and Team Procurement

The Sihoo Vito M90 is the best choice in this price range for workplaces that need to set up various workstations for staff of different heights and hours. The adaptive lumbar instantly adjusts to the person sitting down, the backrest height covers a broader area than the M57, and the price per seat is reasonable even when there are a lot of them.

The M57 is a fantastic choice for jobs where people sit for brief periods of time, such reception, part-time personnel, or conference room chairs. Because it has a smaller height and weight range, the V1 is not a good choice for hot-desking.

The first blog in this series goes into great detail about the Australian research on back pain and workplace costs. It includes the $638 billion GDP productivity loss that is expected to happen over the next decade because of long-term back problems. This is important for businesses that are thinking about how ergonomic investment relates to WHS obligations and productivity outcomes. 

Final Verdict

Sihoo Vito M90 is the best overall in this bracket.

The Sihoo Vito M90 is the best choice for the most Australian purchasers in this price range. It costs $379. The adaptive lumbar support is a major improvement over the M57's manual system. The backrest height adjustment makes it accommodate more people, and the 130-degree recline and tension control let you regulate how the chair works all day long.

The $50 difference between this chair and the M57 is the best value for money in this price range. That gap is made up for in comfort and support for posture within the first month for someone who sits for six or more hours a day. 

The Sihoo M57 is the best place to start.

If you have a strict budget of less than $350 or are buying more than one chair and the cost per seat is important, the Sihoo M57 at $329 is the best choice. It is a fully functional ergonomic chair with a mesh backrest that can be adjusted to fit most people. It is not a compromise; it is the best chair for the job.

The way you set up the chair is half the comfort you will truly feel, no matter which one you choose. When the chair comes, take 15 minutes to make sure that every setting is right for your physique. Every time, an M57 that is set up correctly will do better than an M90 that is put up wrong. 

Best for Specific Fit Needs: Sihoo V1 

The Sihoo V1 costs $529 and is a good choice for people who have a unique fit problem that the M57 and M90 can't fix, especially shorter people who need to change the seat depth to avoid pressure behind the knees. If you're shorter than 175 cm and have tried other chairs that weren't comfortable even after adjusting them correctly, the V1 is worth the extra money because it's the most customizable option in this price range.

The M90 is a superior all-around investment for less money if none of those requirements apply.

Now is the time for better comfort. Find your ergonomic chair with us!