Rowing Machines
4.5 / 5 on Amazon · 4,904 ratings · as of Sep 23, 2026

Sunny Health & Fitness Smart Magnetic Rowing Machine

This Sunny rowing machine is the Smart Magnetic Rowing Machine, model SF-RW523021, a 16-level magnetic rower built around a 50-inch dual rail, upright storage, and the free SunnyFit app. It's the most reviewed Sunny rower in our catalog, with 4,902 Amazon ratings averaging 4.5 out of 5, and it's aimed at buyers who want a quiet, full-body cardio machine without paying for a touchscreen they'll rarely use.

  • 16-level magnetic resistance that owners across dozens of reviews describe as whisper-quiet, including one who rows daily without disturbing the rest of the house
  • One 53-year-old owner at nearly six feet tall found plenty of room on the 50-inch rail through a full stroke
  • Free SunnyFit app adds 1,000+ trainer-led workouts and virtual scenic tours at no extra membership cost
  • The most reviewed Sunny rower in our catalog, with 4,902 Amazon ratings backing the 4.5 out of 5 average
  • Transport wheels and stabilizers make it easy to move and store upright between sessions with no folding step
16-level magnetic resistance · 50-inch dual rail · 300 lb capacity · Free SunnyFit app · Upright storage
$399.98
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Sunny's most reviewed rowing machine in our catalog · secure checkout on Amazon.com
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“4.5/5 from 4,902 Amazon owners: whisper-quiet operation, mixed real-world reports on knee clearance near six feet tall, subtle resistance steps, and one reported grease-leak repair worth knowing about.”
What you getSunny Health & Fitness Smart Magnetic Rowing Machine, model SF-RW523021Free Amazon shipping to your doorFree SunnyFit app access, 1,000+ workouts, no membership feeOur free rowing machine starter workout plan when you buy through this page
Free Amazon delivery30 day returns (Amazon)3-year frame warranty (Sunny registration)

Where this Sunny Health rowing machine lands against the rest of our lineup: Beats every other Sunny rower we carry on sheer review volume, 4,902 ratings against sibling models that mostly sit under 800, Loses to the YOSUDA PRO on weight capacity (300 lb vs 400 lb) and storage, since the YOSUDA folds flat and this one stores upright, Beats the Sunny Extra Long Rail model on resistance depth, 16 levels against its 8, though that sibling's rail runs longer for taller riders.

Which rider are you?

From this page to your first ride

Read the tested review

Specs checked against this exact model, the resistance-step complaint, and the one documented repair, all in one place.

Check today's price

One click to Amazon. We check the listing regularly and note it here if anything changes.

Row within the week

Sunny's own guidance puts assembly around 30 minutes. Test the resistance knob and monitor the same day, before you break down the box.

Why this Sunny rower earns its spot in the lineup

The most reviewed Sunny rower we carry

With 4,902 Amazon ratings averaging 4.5 out of 5, this model has far more real owner data behind it than any other Sunny rower in our catalog, several of which sit under 800 reviews each. That sample size is why we can make specific, checked claims about it instead of general brand-level ones.

Quiet enough for a shared wall

Multiple owners independently describe rowing early morning or late at night without waking family members in the next room. One owner who moved from a 20-year-old water rower said she expected to miss the sound of water and instead prefers the quiet of this magnetic system.

What owners keep saying

This review draws on the 7 owner reports we could verify against this exact model out of 8 review excerpts collected. One excerpt described 8 levels of magnetic resistance, which contradicts this unit's own 16-level spec, so we excluded it and recount every claim below against the remaining 7. Amazon's own aggregate for this listing sits at 4.5 out of 5 across 4,902 ratings.

The honest cons

  • Resistance steps are real but subtle. One owner who otherwise liked the machine noted the difference between adjacent levels is barely perceptible
  • No incline feature, which a few less expensive rowers do include
  • One documented case of a slow grease leak from the return-spring housing after about a month of use; Sunny shipped a free replacement part, but it's a real quality-control report worth knowing before you buy
  • Two of the seven verified owners near six feet tall reported their knees needing to angle out, or the seat needing to be raised, to clear the frame on the return stroke; one raised his seat 5 inches to fix it

Sunny Smart Magnetic Rower vs YOSUDA PRO vs XTERRA ERG200 vs Concept2 RowErg

If you're weighing this Sunny Smart Magnetic against other budget and flagship options, resistance count and rail length settle most of the decision, with the Concept2 sitting in a different price tier entirely as the air-resistance benchmark most gyms use.

Sunny Smart MagneticYOSUDA PROXTERRA ERG200Concept2 RowErg
Resistance16 levels, magnetic16 levels, magnetic8 levels, magneticAir, effort-driven
Weight capacity300 lb400 lb250 lbNot listed on this spec sheet
Rail50 in, upright storage only53 in, folds flatFolds, compact footprintFolds in half for storage
Warranty3-yr frame, 180-day parts1-yr1-yr frame, 1-yr parts5-yr frame, 2-yr parts
Our takeMost owner data of any Sunny rowerHigher capacity, folds flatFewer resistance steps for more moneyThe gym-standard air rower, different price tier
SpecSunny Health & Fitness Smart Magnetic Rowing Machine
Resistance16 levels, magnetic, adjustment knob
Rail50-inch dual rail system with protective covering
Weight capacity300 lb (135 kg per Sunny's own spec sheet)
FrameAlloy steel
Dimensions79.3 in L x 19.7 in W x 36.4 in H
Unit weight31 kg (about 68 lb), with transport wheels and stabilizers
StorageUpright storage; this model does not fold flat
Seat and handlesMolded padded seat, semi-pivoting pedals, curved covered handlebar
MonitorAdjustable LCD tracking time, count, distance, calories, total counts, SPM, T/500m, and pulse; built-in device holder
AppFree SunnyFit App: 1,000+ trainer-led workouts, 10,000+ virtual scenic tours, no membership fee
PowerBattery-powered monitor; no outlet required
Warranty3-year structural frame, 180 days on other parts and components
AssemblyAbout 30 minutes per Sunny's own product guidance

FAQ

Does this Sunny rowing machine need to be plugged into an outlet?

No, it runs on batteries that power the digital monitor only, so there's no outlet or cord to plan around. The rowing mechanism itself needs no power at all.

How long does it take to assemble the Sunny Smart Magnetic Rowing Machine?

Sunny's own product guidance puts assembly at around 30 minutes using the included instructions, manual, and video tutorial. Several owners report finishing solo in that same window, though a few mention closer to 45 minutes if you're unboxing carefully.

How many resistance levels does this Sunny rower have?

It has 16 levels of magnetic resistance, adjusted with a turn of a knob. Several owners note the steps between adjacent levels feel subtle rather than dramatic, so plan to spend real time at the higher end if you want a hard session.

Is this Sunny Health and Fitness rowing machine good for tall riders?

Owner reports in our verified sample are mixed once you get near six feet tall. One nearly-six-foot owner said she had plenty of room through a full stroke, while two other owners around six feet reported their knees angling out or catching on the return, with one raising his seat 5 inches to fix it. If you're near that height, plan to test the return stroke the day it's assembled rather than assuming it'll fit.

Does this Sunny rowing machine fold flat for storage?

No, it stores upright on its transport wheels rather than folding. If a folding frame matters more to you than rail length, Sunny's Extra Long Rail rower and the YOSUDA PRO in our catalog both fold for storage.

What's the real complaint owners have about this Sunny rowing machine?

The most specific quality issue we found in the verified review set is a slow grease leak from the return-spring housing, reported by one owner after about a month of use. Sunny shipped a free replacement part under warranty, and the owner noted the machine kept working fine in the meantime, but it's worth watching for on a new unit.

The verdict

The short version: this Sunny rowing machine is the safest pick in the brand's magnetic lineup simply because more owners have put hours on it than any other Sunny rower we carry. After checking every review excerpt against this exact model's own specs, we excluded one that described 8 levels of resistance (this unit has 16) and kept the rest, which paint a consistent picture: whisper-quiet operation, mixed real-world reports on knee clearance for riders near six feet tall, and resistance steps that are real but subtle rather than dramatic. One owner also documented a slow grease leak from the return-spring housing after about a month, resolved by a free replacement part from Sunny, which is worth knowing before you buy rather than after.

Buy it if you want the most-reviewed Sunny magnetic rower, a quiet machine for a shared wall, and app-guided workouts with no subscription. Skip it if you're near six feet tall and want a guarantee on knee clearance, or if you want a rower that folds flat rather than storing upright.

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Sunny Health & Fitness Smart Magnetic Rowing Machine
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