Concept2 vs WaterRower vs Hydrow: Which Erg Should an Irish Boathouse Actually Buy in 2026?

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Concept2 vs WaterRower vs Hydrow: which erg should an Irish boathouse actually buy in 2026?

May 6, 2026
12 min read
Last verified: May 17, 2026

The Irish answer in 30 seconds

Run a Rowing Ireland club, a secondary-school programme, an IURC squad or a National Rowing Centre training group? Buy Concept2 RowErgs. Roughly 95 percent of competitive Irish boathouses run a Concept2-only fleet, the PM5 is the only monitor whose 2k score is accepted at Rowing Ireland trials and IURC selection, and Paul O'Donovan and Fintan McCarthy logged every winter at Skibbereen RC on PM-series Concept2s through both Tokyo and Paris gold-medal cycles. Headline price in Ireland: EUR 1,200 for a Standard RowErg, EUR 1,380 for the Tall, EU 5-year frame warranty, parts stocked back two decades. WaterRower is a beautiful sitting-room machine for a single user who never plans to compare a 2k against the IURC sheet. Hydrow is an iPad with oars - the EUR 50/month subscription and locked dataset make it useless inside a club gym at Inniscarra, Castleconnell or Belfast Boat Club. Numbers, EU warranty terms and Irish club ownership stats sit in the table directly under this paragraph.

Quick comparison: the three machines side by side

EUR prices and EU warranty terms verified May 17, 2026 from Concept2 EU distribution, WaterRower European stockists and Hydrow EU. Irish club ownership figures gathered informally from Rowing Ireland-affiliated gyms across Cork, Dublin, Limerick, Galway, Belfast and Fermanagh. Subscription costs listed separately.
What an Irish boathouse cares about Concept2 RowErg WaterRower Original Oak Hydrow Wave
Price in Ireland (single machine, EUR) EUR 1,200 (Standard) / EUR 1,380 (Tall) EUR 1,350 (S4 Bluetooth Monitor) EUR 1,800 plus EUR 50/month membership
EU warranty (frame / parts) 5 years frame / 2 years parts, EU-wide 5 years frame / 3 years parts, EU-wide 5 years frame / 1 year electronics, EU-wide
Used in Irish competitive clubs Roughly 95% of Rowing Ireland clubs run Concept2 fleets Effectively zero presence in Rowing Ireland boathouses Effectively zero presence in Rowing Ireland boathouses
Score accepted at Rowing Ireland / IURC trials Yes, the default scoring machine No No
Resistance type Air resistance, adjustable damper Water flywheel in a sealed tank Magnetic plus computer-controlled drag
Stroke profile vs on-water Closest of the three Very good, smooth catch Software-shaped for class viewing
Display and data PM5: full splits, watts, drag, ErgData, logbook API S4 Bluetooth: basic splits, no logbook Subscription content, no open export
Best for Any Irish club, school, university or serious sculler Home users prioritising aesthetics Home cardio with guided classes

EUR prices and EU warranty terms verified May 17, 2026 from Concept2 EU distribution, WaterRower European stockists and Hydrow EU. Irish club ownership figures gathered informally from Rowing Ireland-affiliated gyms across Cork, Dublin, Limerick, Galway, Belfast and Fermanagh. Subscription costs listed separately.

Concept2 RowErg: the Rowing Ireland scoring machine

The Concept2 RowErg indoor rowing machine, photographed by Concept2

Image: Concept2

The Concept2 RowErg is built in Morrisville, Vermont by the engineering firm Dick and Pete Dreissigacker founded in 1976. The first indoor machine, the Model A, came out of the workshop in 1981. The current RowErg is what Rowing Ireland uses for high-performance benchmarking, what IURC clubs put their squads on for ranking nights, and what every Irish Champs trialist is measured against. Paul O'Donovan and Fintan McCarthy - back-to-back Olympic gold in the LM2x at Tokyo and Paris - put every winter score through PM-series Concept2s at Skibbereen Rowing Club. Sanita Puspure, Olympic single sculler and double World Champion, trained on Concept2 at the National Rowing Centre in Inniscarra throughout her career.

Why every Irish coach trusts the PM5 monitor

The PM5 is the engine of the machine. It captures every stroke - split, watts, stroke rate, distance, drag factor, heart rate by Bluetooth - and pushes the lot through the free ErgData app to your phone or up to the Concept2 Online Logbook. That same logbook drives the Concept2 World Rankings, so a Junior 16 sculler at Bann RC can see exactly where they sit against Skibbereen, Commercial and UCD on the same day they post the time. Row HQ takes Concept2 score uploads today by CSV import, with direct Logbook API sync on the short-term roadmap - so a coach is not chasing crumpled paper sheets back from an Inniscarra winter trial. The ergometer glossary entry covers the broader definition.

What drag factor really means for Irish test conditions

The damper lever changes airflow. What an Irish squad coach actually sets is drag factor - the resistance the flywheel feels, displayed on the PM5. Rowing Ireland and IURC programmes typically pin drag between 110 and 130 for senior men and 100 and 120 for senior women, locked per athlete so test conditions stay identical from a wet Tuesday in November to selection week in April. WaterRower has no equivalent setting; Hydrow chooses for you and refuses to tell you what. If you want squad-wide comparable scores across a Trinity, UCD or NUIG trial set - the entire point of running tests - the machine has to be a Concept2. Our drag factor calculator dials in the right setting per athlete.

Why one RowErg outlasts five Rowing Ireland committees

Concept2 publishes a 5-year EU frame warranty, but the RowErgs at Garda RC, Neptune, Commercial and the older boathouses at Bann routinely clock 15 to 20 years of heavy daily use before anything bigger than a chain or seat goes. Chains, handles, seat slides and footstraps swap out by hand for under EUR 60, and Concept2 still stocks parts for machines bought when the punt was the currency. For a Rowing Ireland-affiliated treasurer planning a fleet of 10 to 20 ergs, that lifetime maths is the only fair comparison. A EUR 1,200 RowErg amortised across 15 years lands at EUR 80 per machine per year. Nothing else gets close on a per-stroke cost basis.

Where the Concept2 fits in an Irish weekly programme

The Concept2 anchors any structured Rowing Ireland or IURC programme. Use the erg pace calculator to flip splits into watts and projected distances, drive 2k predictions off a long aerobic piece, and feed the result into the bodyweight-adjusted erg score so lightweights at Skibbereen and the Killorglin masters at Lough Allen are not buried in raw open-weight rankings. Push the lot into Row HQ training sessions by CSV or manual entry, with direct API sync on the roadmap. The entire global indoor-rowing record book - Josh Dunkley-Smith's 5:35.8 heavyweight 2k, Henrik Stephansen's 5:56.7 lightweight 2k, Brooke Mooney's 6:21.1 women's heavyweight - was set on Concept2 RowErgs. No equivalent record list exists for either competitor.

The Concept2 is the equaliser. Every rower on the planet, from a Junior 16 sculler in a Galway boathouse to an Olympic medallist at Skibbereen, is measured on the same machine against the same standard. That alone is enormously valuable.

Sir Steve Redgrave — five-time Olympic rowing gold medallist

WaterRower Original Oak: beautiful in a Dublin sitting room, marginal in a Cork boathouse

The WaterRower Original Oak rowing machine with S4 monitor, photographed by WaterRower

Image: WaterRower UK

The WaterRower is the ash-framed wooden machine that pops up in lifestyle magazines and the lobby gyms of five-star Dublin hotels. Designed in 1988 by John Duke, a Yale engineer and a former US National Rowing Team candidate, built in Warren, Rhode Island and pushed into Ireland through European distribution out of the Netherlands. It pulls a real paddle wheel through a sealed tank of water; the catch feels close to a slide-seat boat and the wash sound is genuinely calming. Taken on its own merits, it is a lovely piece of furniture you can pull hard on - landing around EUR 1,350 for the Original Oak with the S4 Bluetooth Monitor.

Why Irish clubs almost never buy WaterRowers as their primary fleet

The S4 monitor is bare. It reads time, distance, split and stroke rate, and the export story is thin next to ErgData. There is no equivalent of the Concept2 logbook, no recognition at Rowing Ireland or IURC trials, and the drag is fixed by how much water sits in the tank - not per-athlete adjustable and not comparable to a Concept2 drag factor in any meaningful way.

Practically, that means an Inniscarra winter trial 2k posted on a WaterRower cannot be lined up against the IURC sheet, the Irish Champs trialist list, or anybody's historic Concept2 PBs. Half a squad on Concept2 and half on WaterRower delivers two parallel datasets that never reconcile. The machines are not interchangeable for serious measurement, even though they cover similar metres.

When a WaterRower genuinely makes sense in an Irish context

A WaterRower is a strong domestic buy for the rower who wants something quiet and beautiful, will mostly grind steady-state pieces, and is not chasing a position on the national 2k list. A handful of Irish clubs keep one for variety in the corner of the gym; none I know of runs the WaterRower as their primary testing fleet. The British Rowing partnership announced in 2016 never flipped a single boathouse off Concept2.

We are proud that WaterRower has become the Official Water Rowing Machine of British Rowing. Great Britain is currently the most successful rowing nation on the planet, and British Rowing are the driving force behind this success.

Peter King — CEO, WaterRower (2016 partnership announcement, no current Irish or British Rowing tie)

Hydrow Wave: a Peloton with oars, not an Irish boathouse erg

The Hydrow Wave connected rowing machine, photographed by Hydrow

Image: Hydrow

Hydrow is a connected fitness device with a 16-inch screen on the front and a software-controlled magnetic flywheel inside. The hardware costs around EUR 1,800 in Ireland and the Hydrow Membership runs roughly EUR 50 per month - without which the machine is a very expensive paperweight. Bruce Smith, a former US National Team rowing coach and former Executive Director of Community Rowing in Boston, founded the company in 2017; the business has since raised over USD 300m in venture funding. Read as a connected cardio product, the Wave is a well-built piece of kit and the production value on the classes is high.

Why Hydrow is poor for actual rowing training

The Hydrow stroke profile does not match real rowing. The catch is gentle, the drive curve is software-shaped to look exciting on camera, and the recovery is artificially smooth. A coach watching a development sculler on a Hydrow will catch the bad habits the boat will then have to unlearn - early back swing, weak catch, rushed recovery - none of which translate cleanly to a Filippi at Inniscarra. There is no drag factor, no ErgData export, no Concept2-compatible rankings, and no path into the Rowing Ireland or IURC scoring world.

Hydrow markets itself to home users who want guided cardio with a rowing aesthetic. That is a real and legitimate audience. It is just not the same product as a Concept2. An Irish rowing club buying Hydrows would be the equivalent of a cycling team buying Pelotons instead of road bikes - the data is locked, the technique pattern is wrong, and the recurring subscription bill makes the fleet maths nonsensical.

When a Hydrow genuinely makes sense for an Irish home rower

If a member of your boathouse wants a guided home cardio machine, has the disposable budget, and accepts that their 2k will not appear on the Concept2 World Rankings, fine. Just please do not put one in the club gym and expect to score a Rowing Ireland-comparable test on it. Even the company's own founder is candid about who the product is built for - see the Evening Standard quote below.

Yep, rowing can be really boring. I want Hydrow to be the antidote to those dull, clunky Concept2 machines you find in most gyms.

Bruce Smith — Founder of Hydrow, former US National Team rowing coach (Evening Standard interview, 2021)

Three-year cost: side by side in EUR

Headline prices conceal the recurring story. Concept2 has none. Hydrow adds roughly EUR 600 of mandatory subscription every year. Here is what each machine costs an Irish owner across three years, before parts or repairs:

Three-year total cost of ownership (Ireland, EUR)

Hardware plus required subscription, May 2026 indicative Irish prices.

Three-year total cost of ownership (Ireland, EUR) Bar chart comparing the three-year total cost of ownership for the Concept2 RowErg, WaterRower Original Oak and Hydrow Wave in EUR. Concept2 RowErg No subscription EUR 1,200 WaterRower Original Oak No subscription EUR 1,350 Hydrow Wave Includes 36 mo membership EUR 3,600

Headline: the Hydrow Wave costs 3× the Concept2 RowErg over three years - almost entirely because of the mandatory subscription. The two non-subscription machines come within 13% of each other.

EUR 1,200+ Concept2 RowErg three-year total in Ireland. No subscription, no membership, no recurring cost. (Concept2 EU distribution, May 2026) Source: concept2.com
EUR 1,350 WaterRower Original Oak with S4 Bluetooth Monitor, three-year total. No mandatory subscription. (European stockists, May 2026) Source: waterrower.com
EUR 3,600+ Hydrow Wave three-year total: hardware around EUR 1,800 plus 36 months of mandatory Hydrow Membership at roughly EUR 50 per month. (Hydrow EU, May 2026) Source: hydrow.com

Across a 15-year fleet horizon - realistic for a Concept2 in any Rowing Ireland boathouse - the gap blows out. A Concept2 amortises to roughly EUR 80 per machine per year. A Hydrow across the same window, subscription included, runs past EUR 10,000 per machine and still cannot post a Rowing Ireland-acceptable 2k. The Concept2 is the only one that survives the maths.

What to buy by use case in Ireland

You run a Rowing Ireland-affiliated club at any level

Concept2 RowErg. No exceptions.

Standardise on Concept2 RowErgs across the gym. Fill the room. Never mix machines for testing. Swap handles and chains when they go and the fleet will see out five committees, a regatta-format change, and at least one club refurbishment.

You run a secondary-school rowing programme

Concept2 RowErg.

Same answer. School squads in Cork, Limerick, Dublin and Galway need scores that line up against IURC recruiting baselines and Junior Irish Champs trial sheets - that only works on Concept2. The robustness pays off when thirty Junior 16s a day are dropping back to the catch hard.

You are a home sculler chasing a serious 2k or world ranking

Concept2 RowErg, with WaterRower as a distant fallback.

If you can stretch to a Concept2, do. Scores line up with clubmates at Commercial, Garda or Trinity, and with the Concept2 World Rankings. A WaterRower is workable if a Concept2 is impossible to source, but accept that the numbers will not slot into anybody else's comparison set.

You want a beautiful home cardio machine for steady-state work

WaterRower.

If the look of the machine and a quiet sitting-room footprint matter, and you have no plans to put your 2k up against a club mate at Castleconnell, the WaterRower is genuinely lovely to own and train on.

You want guided workouts and motivation, not technique

Hydrow, if the subscription suits you.

Hydrow is a connected cardio device that happens to look like an erg. If that is what you want, fine. Just go in with eyes open: no rowing-club use, no Rowing Ireland scoring, no Concept2 World Rankings.

FAQs

Are WaterRower scores comparable to Concept2 scores at Irish trials?

No. The two machines measure work in different ways, the WaterRower S4 monitor reports distance with a different calibration, and there is no shared rankings system. A 7:00 2k on a WaterRower and a 7:00 2k on a Concept2 are not the same achievement and no Irish selector treats them as comparable. Every Irish performance benchmark - Junior Irish Champs trials, IURC selection, Rowing Ireland Olympic pathway shortlisting - is set on Concept2.

Can I use Hydrow data to track 2k erg progress for Rowing Ireland trials?

Not usefully. Hydrow does not push data into the Concept2 logbook, the resistance is software-managed and not equivalent to a Concept2 drag factor, and the stroke profile is shaped for camera-friendly entertainment rather than physiological accuracy. If your goal is 2k progression toward Rowing Ireland or IURC trials, the test has to land on a Concept2 - even if your day-to-day grinding happens elsewhere.

What's the price difference in Ireland between the three machines in 2026?

A Concept2 RowErg is around EUR 1,200 in Ireland (Standard legs; Tall is EUR 1,380). A WaterRower Original Oak with the S4 Bluetooth Monitor lands around EUR 1,350. A Hydrow Wave is roughly EUR 1,800 up front plus around EUR 50 per month of mandatory Hydrow Membership - so EUR 2,400 in year one and EUR 600 every year after. Across a 10-year window the Concept2 is comfortably the cheapest of the three, and across a 15-year window it is not close.

Do Irish rowing clubs ever buy WaterRowers?

Rarely, and almost never as the primary fleet. A small number of clubs keep one or two as variety machines or for members who like the water-tank feel, but the testing standard across the Rowing Ireland-affiliated boathouses is overwhelmingly Concept2. Skibbereen, Commercial, Garda, Neptune, NUI Galway, UCC, Trinity, UCD and Bann all train and test on Concept2 fleets.

Can I export data from each machine into a club management system?

Concept2 exports cleanly via ErgData and the Concept2 Logbook. Row HQ accepts Concept2 scores today by CSV import, with direct Logbook API sync on the short-term roadmap so scores land in the coach dashboard automatically. WaterRower has limited app connectivity through their own apps and no equivalent of the Concept2 rankings website. Hydrow keeps the data inside its own ecosystem and offers no open export. For an Irish club running structured testing, only the Concept2 plays cleanly with third-party tools.

What is the world record 2k on a Concept2?

Heavyweight men: 5:35.8, set by Josh Dunkley-Smith (Australia) in March 2018 at the Senior Australian Rowing Team Trials. Lightweight men: 5:56.7, set by Henrik Stephansen (Denmark) in January 2013, ratified by Guinness World Records. Heavyweight women: 6:21.1, set by Brooke Mooney (USA) in 2021. All three records were set on Concept2 RowErgs. No equivalent ratified record book exists for WaterRower or Hydrow.

Keep every erg score in one place

Row HQ keeps each athlete's erg scores with their training record. Coaches can see progress without chasing spreadsheets. Set up your club free for up to 20 members.

- Jason and the Row HQ team

Sources & references

  1. Rowing Ireland - Performance Programme — Rowing Ireland
  2. Irish Universities Rowing Championships (IURC) - results archive — IURC
  3. British Rowing - WaterRower partnership announcement (2016, no current tie) — British Rowing
  4. Concept2 RowErg product page — Concept2
  5. Concept2 2025 Year in Review (141,735 new athletes, 79.7B m, 210+ countries) — Concept2 (accessed May 17, 2026)
  6. New 2k world record 5:35.8 (Josh Dunkley-Smith) — Concept2
  7. Concept2 Online Logbook — Concept2
  8. WaterRower product page — WaterRower
  9. How much does a Hydrow cost? (EU pricing breakdown) — Hydrow (accessed May 17, 2026)
  10. Hydrow founder Bruce Smith interview — Evening Standard
  11. Why Sir Steve Redgrave uses the Concept2 rower — Fitness Etc
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