Some home users want a rower that feels more like outdoor rowing, with full arm sweep and torso rotation, while still staying low‑impact, compact and quiet. The Sunny Health & Fitness Compact Smart Full Motion Rowing Machine (SF‑RW5639SMART) uses 12 levels of hydraulic resistance, rotating full‑motion handles, an ergonomic seat and a digital monitor to deliver total‑body cardio for legs, back, core and arms.

This guide looks at how the SF‑RW5639SMART fits into flats and home gyms, using Sunny’s product pages and Amazon‑listed details to focus on full‑motion mechanics, resistance range, space, noise, comfort and day‑to‑day practicality.

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See the Sunny Compact Smart Full Motion Rowing Machine SF‑RW5639SMART on Amazon.com

See the Sunny Compact Smart Full Motion Rowing Machine SF‑RW5639SMART on Amazon.co.uk

QuietFit Lab snapshot

Noise level: Low – hydraulic resistance and compact frame avoid fan or motor noise; main sounds are the seat glide and full‑motion handle movement. A mat is still sensible on hard floors to soften vibration.

Apartment‑friendly: Yes – compact dimensions around 142 × 58 × 74 cm (approximate based on UK listing) with user weight capacity up to about 180 kg (300+ lb in some materials), supporting multi‑user households while staying space‑saving.

Best for: Users who want full‑motion, joint‑friendly rowing cardio at home, with a greater range of arm movement than straight‑bar rowers and simple app‑supported guidance via SunnyFit.

Not ideal for: People focused on very high‑intensity strength rowing or precise performance metrics, or those who prefer the straight pull and longer rail of a classic magnetic or air rower.

Overall, the SF‑RW5639SMART is aimed at home users who want engaging, full‑motion rowing that feels closer to outdoor techniques, with compact storage and straightforward monitoring rather than large screens or complex electronics.

Key features and specs

Sunny’s US and UK pages describe closely matching specs for the SF‑RW5639SMART; QuietFit Lab uses overlapping ranges where descriptions differ.

Full‑motion rowing arms: Rotating handles provide 360° full‑motion movement, activating legs, back, core and arms for a more comprehensive exercise and natural rowing form, rather than a fixed straight bar.

Hydraulic resistance with 12 levels: Smooth hydraulic system offering 12 adjustable resistance levels, customized via a control so users can increase or decrease intensity for warm‑ups through more challenging sessions.

Digital monitor metrics: LCD digital monitor tracks key workout data such as time, count, total count, strokes per minute, distance and calories (exact metrics vary slightly by market), helping users monitor progress and adjust effort.

SunnyFit app connectivity (Smart): Bluetooth pairing allows the Smart variant to sync with the SunnyFit app, simulating outdoor rowing routes, scenic tours and guided sessions, with over 1,000+ trainer‑led workouts and 10,000+ scenic routes marketed as available with no subscription fees.

Device holder: Secure device holder accommodates smartphones or tablets so users can follow SunnyFit workouts, scenic routes or other fitness apps while keeping their main display close to eye level.

Compact frame and capacity: Product dimensions around 142D × 58W × 74H cm (UK listing) with robust build rated to support up to approximately 180 kg user capacity, described as suitable for a wide range of sizes while remaining compact at home.

Ergonomic seat and stability: Elevated padded seat with wider design for easier mounting and comfort, paired with non‑slip foot pedals and non‑slip grip handles to enhance stability during prolonged workouts.

Build and materials: Sturdy steel frame designed for lasting stability in multi‑user households, with anti‑slip features and a compact base intended for home use rather than commercial gyms.

Noise and “quiet factor”

The SF‑RW5639SMART’s hydraulic system and compact frame keep operating noise modest, avoiding the loud airflow of air rowers and the pronounced whir of large magnetic flywheels. Most sound comes from the seat rollers on the rail, the pivoting handles and user movement.

On hard floors or in upper‑floor flats, QuietFit Lab still recommends a mat under the frame to soften vibration, protect flooring and reduce any transferred noise, especially in shared buildings.

Full‑motion arms can add some extra mechanical sound when rotating compared with a straight bar, but in typical marketing descriptions the machine is still positioned as quiet home cardio suitable for living spaces.

Space, footprint and small‑home use

Sunny presents the Compact Smart Full Motion Rower as space‑saving yet robust, with dimensions around 142 × 58 × 74 cm outlined in UK product information, smaller than many full‑length rail rowers.

Despite a relatively high user weight capacity, the frame is designed to sit on a modest footprint, making it easier to keep in a living room or home gym corner without dominating the space.

The compact design and hydraulic system also mean there is no external power requirement, minimizing cable routing and making it simpler to place near seating areas or in multipurpose rooms.

Comfort, rowing feel and app experience

Full‑motion handles encourage a more natural rowing arc, allowing users to involve shoulders and torso rotation in addition to their legs and back. This can make sessions feel more like outdoor rowing while still maintaining low‑impact cardio.

The ergonomic elevated seat and non‑slip foot pedals aim to reduce sliding or instability, especially during longer sessions. Marketing materials highlight “comfort & stability” with design choices focused on superior mounting and reduced slipping.

Smart connectivity with the SunnyFit app adds structure and engagement through guided workouts, realistic rowing simulations and scenic routes, turning simple hydraulic sessions into more immersive experiences for home users who enjoy following programs.

QuietFit Lab uses affiliate links. If you buy through the Visit Website or View on Amazon buttons on this page, we may earn a small commission at no extra cost to you. This helps support the site and keeps our reviews independent. As an Amazon Associate, QuietFit Lab earns from qualifying purchases.

Pros

Full‑motion rowing arms provide a 360° handle range, activating more upper‑body muscles and mimicking outdoor rowing form.

12 adjustable hydraulic resistance levels support a broad range of workouts, from low‑impact warm‑ups to more demanding full‑body sessions.

Compact footprint around 142 × 58 × 74 cm, with high user weight capacity, suitable for small homes and multi‑user households that still want a sturdy machine.

Smart connectivity and free SunnyFit app access (Smart style) offering guided workouts, scenic routes and performance tracking without advertised subscription fees.

LCD digital monitor and device holder combine basic on‑machine metrics with the ability to use a phone or tablet for more advanced guidance.

Low‑impact cardio focus, making it appealing for users who want full‑body training that remains joint‑friendly.

Cons

Hydraulic resistance characteristics: Like other hydraulic rowers, resistance feel can change as components warm up during longer sessions, and may not match the sustained intensity of air or large magnetic rowers.

Shorter rail and compact frame may be less ideal for very tall users who want maximum leg extension compared with full‑length rail rowers.

Monitor is still relatively basic despite added metrics; users seeking detailed performance analytics or large integrated screens may find it limited.

Full‑motion arms introduce more technique considerations; some beginners may prefer the simpler straight‑bar motion of traditional rowers.

Smart features depend on reliable Bluetooth and a separate device; if users don’t enjoy training with an app, much of the “Smart” value is unused.

Who the SF‑RW5639SMART Compact Smart Full Motion Rower is best for

The Sunny Compact Smart Full Motion Rower SF‑RW5639SMART is likely to suit:

Home users who want full‑motion rowing mechanics that engage legs, back, core and arms with a more natural arc than straight‑bar machines.

People in apartments or small homes who need a compact, quiet rower with hydraulic resistance and no mains power requirement.

Users who appreciate guided workouts and scenic routes via the SunnyFit app and are comfortable using a phone or tablet as their primary training screen.

Multi‑user households looking for a sturdy frame with high capacity, where different family members can share a single machine.

The Sunny Compact Smart Full Motion Rower SF‑RW5639SMART is less likely to suit:

Athletes or advanced rowers seeking very high‑intensity performance training with long rails and air or electromagnetic resistance.

Users who prefer the simplicity of a classic, straight‑bar rower and do not want to adjust technique for full‑motion handles.

People who expect large integrated screens and detailed analytics built into the machine, rather than app‑based guidance and a compact monitor.

Where the SF‑RW5639SMART Compact Smart Full Motion Rower is commonly available from

Where to buy

Buy the Sunny SF-RW5639SMART Compact Smart Full Motion Rower direct from Sunny Health & Fitness

Check the latest price for the Sunny SF-RW5639SMART Rower on Amazon UK

Check the latest price for the Sunny SF-RW5639SMART Rower on Amazon US

Always check the exact model wording (Smart vs non‑Smart, regional specs and capacity figures) plus current reviews and pricing before buying, as Sunny Health & Fitness offers several related full‑motion rowers across different markets.