The Sunny SF-RW5801 is a folding magnetic rowing machine that, according to Sunny, has 16 resistance levels, weighs about 22.5 kg and folds to roughly 92 x 58 x 119 cm. Its page gives two user weight limits (285 lb and 250 lb) and lists a US-market warranty. No price is set on this site.
This review is based on published specifications; the site does not test products.
Specification
| Specification | Maker's figure |
|---|---|
| Resistance | Magnetic tension, 16 levels |
| Size in use | 77 x 23 x 22.5 in (about 196 x 58 x 57 cm) |
| Size folded | 36.3 x 23 x 47 in (about 92 x 58 x 119 cm) |
| Weight | 49.6 lb (about 22.5 kg); ship weight 58.4 lb |
| Maximum user weight | 285 lb (about 129 kg) in the specification; the FAQ says 250 lb (about 113 kg) |
| Slide rail | 43 in (about 109 cm); the specification also lists 43.5 in inseam |
| Seat | Padded, 11.5 x 15 in; height 10 to 11.3 in (about 25 to 29 cm) |
| Monitor | Digital; calories, count, time, total count, scan; two AAA batteries included |
| Power | No electricity needed to operate |
| Extras | Transport wheels, floor stabilisers, non-slip pedals with adjustable straps, device holder, bottle holder |
| Maximum user height | Not published; maker says to measure your inseam against the slide rail |
| Noise figure | Not published |
| Warranty | 3-year structural frame, 180 days other parts (listed as domestic US markets) |
What is the weight limit of the SF-RW5801?
Sunny lists 285 lb (about 129 kg) in the specification and 250 lb (about 113 kg) in its FAQ. A user weight limit is a safety figure, and a page that states two numbers cannot be relied on for either. Treat the lower figure of 250 lb as the cautious reading until the seller or Sunny confirms which applies, and read the manual for any other stated limits.
Who does the specification suit?
Sunny's listed weight and folded size suit people who want to move it between rooms or tuck it behind furniture. The 43 in rail is shorter than the 120 cm monorail JTX lists for its Freedom Air, so taller users should measure their inseam against it, as Sunny advises. The console lists calories, count and time rather than watts or split data, so users who want pace figures would need to look at other models. Sunny describes the magnetic system as one where magnets move closer to the flywheel as resistance increases, giving a smooth, quiet row; it publishes no decibel rating to put a number on that.
Does the Sunny SF-RW5801 fold?
Yes. The unit folds upright and has transport wheels for moving it. The folded size is 36.3 x 23 x 47 in, about 92 x 58 x 119 cm, so it stands about 119 cm tall folded. In use, the rower is about 196 cm long, shorter than the 244 cm Concept2 RowErg. At 22.5 kg it is the lightest of the rowers on this site with a published weight. See the small apartment home gym guide for layout ideas.
What warranty does it have?
Sunny lists a 3-year warranty on the structural frame and 180 days on other parts and components, and the page says it applies in domestic US markets. UK cover is therefore not confirmed by the page. Ask the seller for the UK warranty terms in writing, and keep the packaging while you decide. GOV.UK's guidance for sellers says online purchases carry a 14-day cancellation period after receipt and that a faulty item returned within 6 months must be repaired or replaced, which applies regardless of what a maker's page lists.
What should you check before buying?
- User weight limit. The maker's page gives 285 lb in the specification and 250 lb in the FAQ. Ask the seller which applies.
- UK warranty. The 3-year frame and 180-day parts warranty is listed for US markets. Confirm UK terms with the seller.
- Assembly. Sunny links an assembly guide and manual for the SF-RW5801, and says the owner's manual can be downloaded from the product page, but gives no assembly time.
- Console. It does not list watts, split or Bluetooth data.
- Price and availability. No price is recorded here; check the retailer.
- Flooring. See the flooring guide.
For general activity amounts, the NHS recommends adults aged 19 to 64 build up to at least 150 minutes of moderate activity a week; anyone with a health condition should consult a qualified professional first.
How should you read the numbers?
The maker's figures are in US units, so converted values here are approximate. The weight of 49.6 lb is about 22.5 kg, and the ship weight of 58.4 lb is about 26.5 kg, which is relevant for lifting the box. The seat is listed at 11.5 x 15 in, and its height ranges from 10 to 11.3 in, about 25 to 29 cm, which is low to the floor. The slide rail is 43 in (about 109 cm).
The monitor displays calories, count, time, total count and a scan mode that cycles through the features, powered by two AAA batteries that the maker says are included. The maker lists floor stabilisers and transport wheels, which suggests the rower is designed to be moved and levelled, though the page gives no detail on how stable it is in use. Maintenance is left to the user manual, and the page directs buyers to customer care for parts.
How does it compare with the JTX and Concept2 on size and weight?
On the makers' figures the Sunny is the shortest and lightest of the rowers with published sizes. In use it is about 196 cm long against 230 cm for the JTX Freedom Air, 244 cm for the Concept2 RowErg and 209 cm for the WaterRower Original Oak. At about 22.5 kg it weighs less than the Concept2 (26 kg), the JTX (40 kg) and the WaterRower (46 kg filled). The trade-offs are on the other side of the ledger: a 43 in rail where JTX lists 120 cm, two conflicting user weight limits where JTX lists 135 kg, and a console without watts or split data. Whether a lighter, shorter frame is worth those trade-offs depends on who will use it and how tall they are; the comparison guide sets the four machines side by side.
What does the maker not publish?
Sunny's page does not state a maximum user height, a decibel figure, an assembly time or a UK warranty. It does give the owner's manual as a download and points buyers to customer care for parts and technical help. Since a manual is the usual place for set-up and safe-use instructions, it is worth reading the PDF before ordering rather than after delivery, and asking the seller whether the unit sold in the UK matches the specification on the US page.
Who should skip the Sunny SF-RW5801?
Anyone who needs a confirmed user weight limit above 113 kg, wants pace data such as watts or split times, or needs a UK-specific warranty in writing before ordering should look elsewhere or get the answers first. Taller users should check the 43 in rail against their inseam.
What are the alternatives?
The JTX Freedom Air lists air and magnetic resistance, a 135 kg limit and a longer rail. For premium machines, see the Concept2 RowErg review. Compare them all in the budget rowing machine guide and best rowing machine for home UK.
