I have taught more than a thousand people to row, and I can tell you the machine almost never decides whether someone sticks with it. The coaching does. But the machine decides whether coaching is even possible, and that is why I am picky about indoor rowing machines and blunt about the ones that fight you. The four machines in this comparison cover the whole spectrum of what people actually buy: a hydraulic glider with cylinder resistance, an air rower that folds, a handcrafted water rower, and an under-desk elliptical that is not a rower at all yet keeps landing in the same shopping carts.
Related: How to Set the Damper on an Air Rower Without Guessing
The Stamina Elite ATS Air Rower is the one I would recommend to most readers here, because air resistance is the only resistance that teaches you to row properly. Pull harder and the machine pushes back harder. That is the entire lesson of the sport, delivered by physics instead of by me. The WaterRower Club is the machine I would keep in my own living room. The hydraulic glider is a legitimate starting point with a real ceiling. The under-desk elliptical serves a completely different reader, and pretending otherwise does nobody any favors.
Here is the table I would hand a friend who asked me to compare these four without a lecture.
Stamina Hydraulic Rowing Machine, BodyTrac Glider
Cheapest honest way onto a rail, quiet cylinder resistance, folds into a closet, 250 pound capacity
Hydraulic cylinders change resistance as they warm up, short stroke cramps tall rowers
Stamina Elite ATS Air Rower
Real air resistance that scales with effort, folding frame, app with no subscription
Basic LCD monitor, hinge and rail are the flex points on a hard drive
WaterRower Club Rowing Machine with S4 BLE Monitor
Closest feel to actual water, USA made wood, looks like furniture, strong resale
Tank maintenance is real work, heaviest machine here, monitor is basic next to app machines
MERACH Under Desk Elliptical, Leg Exerciser While Sitting for Seniors
Seated leg movement with no balance or technique required, tiny footprint
Not a rower, no leg drive, no upper body, no split to chase
Prices and availability were captured from Amazon Creators API and may change.
How I judge a machine before I recommend it
Four questions, in order. Does the resistance stay consistent through the whole stroke, not just at the catch? Does the monitor show a split, or does it only show calories and a stopwatch? Does the seat roll smooth and quiet on the rail? Would I put a beginner on it on day one without apologizing? If a machine fails the first question, nothing else matters, because inconsistent resistance teaches inconsistent technique. If it fails the second, you are training blind. If it fails the third, you will hear the machine every session and you will start skipping sessions. If it fails the fourth, it is a clothes rack with a warranty.
The hydraulic glider: the cheapest honest way onto a rail
The Stamina Hydraulic Rowing Machine, BodyTrac Glider is the entry point, and I want to be fair to it before I am critical of it. Cylinder resistance means the resistance comes from hydraulic cylinders rather than a fan or a tank. That makes it quieter than an air rower and compact enough to fold and stand in a closet. It carries a 250 pound capacity, which is fine for a lot of households, and it costs a fraction of what the water rower costs. If you have never rowed and you need a machine that lets you practice the motion for fifteen minutes a day, this is a real option and not a toy.
The ceiling is the cylinders. Hydraulic resistance changes as they warm up, which means the machine feels different depending on how long you have been on it. That is the opposite of what you want when you are learning to pace. The stroke is short too, so tall rowers feel folded up at the finish, and short strokes are exactly where form breaks down: you end up pulling with your arms and never learning to drive with your legs.
Which brings the technique note, because I do not talk about machines without one. On a short stroke machine, spend two minutes rowing legs only, arms straight and hands relaxed. Feel the catch, then feel the finish. If your arms are doing the work, the machine is short and your form is shorter.
The air rower: where actual training starts
The Stamina Elite ATS Air Rower is the machine in this group that behaves like a real erg. Air resistance scales with effort, the fan spins up as you drive, and resistance falls away when you back off. That is the property that makes interval training possible on a rower and miserable on almost anything else. Two other things stand out. It folds, which matters in an apartment, and the smart workout app does not require a subscription. I have made fun of subscription rowers in print and I stand by that, so a connected machine with no monthly fee gets my attention.
The monitor is an LCD, and this is where I get picky. A monitor is not a scoreboard for calories. Calories on any rowing machine are an estimate with a marketing department. What you want is a split, meaning time per 500 meters, because that is the honest pace number and it compares across sessions and machines. Before you buy any air rower, confirm what the monitor actually displays. If it shows split and meters, you can train. If it only shows calories and time, you can still train, but you will be guessing.
Damper note, because most people set it wrong: on an air rower the damper is a feel setting, not a resistance setting. Moving the lever changes how the flywheel feels, not how hard the machine is. The number that matters is drag factor. Set the damper somewhere in the middle, leave it there, and stop treating the lever like a difficulty dial.
Folding rails are a trade-off and I will not pretend otherwise. A hinge is a place where a rail can flex, and flex under a hard drive is what eventually makes a machine feel cheap. If you are a heavier rower or you plan to sprint, check the rail and the hinge before you commit.
The water rower: the one that feels like water
The WaterRower Club with the S4 BLE monitor is the machine I would keep at home, and I will tell you why even though I recommend the air rower to most people. Water resistance feels the closest to actual rowing of anything that does not float. The flywheel sits in a tank, the water pushes back with a smoothness a fan cannot match, and resistance builds through the drive in a way that rewards patience instead of violence. It is USA made, handcrafted in wood, and it looks like furniture instead of gym equipment, which in a living room is not a small thing.
The S4 BLE monitor pairs with apps over Bluetooth, which solves part of the monitor problem for people who want their data in one place. It is still a basic monitor next to a screen based machine, and I would rather say that plainly than oversell it.
Then there is the maintenance, the part the marketing photos leave out. A water tank is a living system. You treat the water, you top it off, and eventually you deal with the tank. None of that is difficult, but it is work, and if you are the kind of person who never wants to touch a machine, buy the air rower instead. The Club is also the heaviest and most expensive option in this comparison, and it has the best resale story, which matters if you move.
Technique note for water rowers: the tank rewards a slower stroke more than any other resistance type. Rush the recovery and you fight the water instead of using it. Count one second on the drive and two seconds back, and the machine will feel completely different.
The under-desk elliptical: not a rower, and that is fine
The MERACH Under Desk Elliptical is the curveball, and I include it because readers keep asking about it in the same breath as rowers. It is a leg exerciser you use while sitting, marketed for seniors, and it does a genuinely useful job. There is no stroke to learn, no balance required, and no rail to sit on. If you are rehabbing a knee, if you sit at a desk for nine hours, or if you are buying something for a parent who will not climb onto a rowing machine, this is a real tool and not a gimmick.
What it is not is a rowing machine. No leg drive, no hip hinge, no upper body work, and no split to chase. If your goal is cardiovascular training, this will not get you there the way any of the three rowers will. If your goal is moving your legs while you answer email, it beats a rower that stays folded in the closet.
The trade-offs nobody puts on the box
Resistance type decides everything else. Hydraulic resistance is the quietest and the least consistent once the cylinders warm up. Air resistance is honest, loud, and scales with effort. Water resistance is smooth and beautiful and needs maintenance. None of those are marketing problems. They are physics, and you should pick the physics that match the workouts you will actually do.
Monitors are the most underrated part of the purchase. A great machine with a dumb monitor becomes a clothes rack, because you stop trusting the numbers. A split is a fact. Calories are a guess. Buy the machine whose monitor tells you the truth.
I will not call any machine quiet without a meter on it, so I will say this instead: air rowers are the loudest of the three rowers here, water rowers make a steady hum, and hydraulic machines are the quietest. If you live above a downstairs neighbor, that ordering matters more than any spec sheet.
Last thing: the seat. If the seat clicks or squeaks on the rail, the machine is telling you something about the rollers or the rail alignment. Do not ignore it and do not oil it into silence. Fix it or return it.
What I would buy, by reader
Never rowed, small apartment, tight budget: the Stamina Hydraulic Rowing Machine, BodyTrac Glider. Learn the stroke on it, then upgrade when you outgrow it.
Want to actually train, with intervals and a pace you can track: the Stamina Elite ATS Air Rower. Best mix of honest resistance, folding storage, and a no-subscription app in this group.
Care about feel and looks, and you will do the maintenance: the WaterRower Club. Closest thing to water, and the one that looks best doing nothing.
Want seated leg movement, or shopping for someone who will not use a rower: the MERACH Under Desk Elliptical.
The technique note that outranks all of this
Whatever you buy, the machine is about twenty percent of the workout. The other eighty percent is the order of operations: legs, then body, then arms on the drive, and arms, then body, then legs on the recovery. Slow the stroke down. Feel the catch. Feel the finish. If you are gasping and thrashing at thirty strokes a minute, you are not training, you are surviving, and no machine in this comparison can fix that. Row at a rate you can hold for twenty minutes, watch the split instead of the calories, and the machine will do its job if you do yours.