Sunny SF-RW5515 Magnetic Rower vs Stamina ATS Air Rower 1399

Sunny SF-RW5515 Magnetic Rower versus Stamina ATS Air Rower 1399 is a spec comparison, not a test. Two Amazon-sold air rowers. Every number below is copied from a manufacturer page or official sheet and carries an as-of date of 2026-10-14 on the product records. If a field is blank on the maker’s page, it stays blank here.

Sunny Health & Fitness describes the Sunny SF-RW5515 Magnetic Rower as: Sunny’s SF-RW5515 is a folding magnetic rower at 81.8 x 18.9 x 23.6 in and 60.9 lb, with 8 resistance levels, a 53.4 in slide rail, and a 250 lb capacity. Sunny’s SF-RW5515 page lists magnetic resistance with 8 levels, 81.8 x 18.9 x 23.6 in assembled, 43.3 x 18.9 x 52.4 in folded, 60.9 lb, 250 lb max user weight, 53.4 in slide-rail length, and 48.4 in slide-rail inseam. Warranty is 3-year structural frame and 180 days other parts. A price was not shown in the fetched manufacturer content; a live Amazon listing exists.

Stamina describes the Stamina ATS Air Rower 1399 as: The Stamina ATS Air Rower 1399 is a folding home air rower at 77 x 18.75 x 22 in and 54 lb, with a 250 lb weight limit and a 3-year frame / 90-day parts warranty. Stamina’s ATS Air Rower 1399 page lists air resistance, 77 x 18.75 x 22 in assembled, 48 x 18 x 28 in folded, 54 lb product weight, and a 250 lb weight limit. The C-version page lists a regular price and warranty 3 years frame / 90 days parts. Rail length and max user height are not on that spec table.

On listed height, Sunny SF-RW5515 Magnetic Rower is 23.6 in and Stamina ATS Air Rower 1399 is 22 in. Width is 18.9 in versus 18.75 in. Depth / length is 81.8 in versus 77 in (falling back to a listed length where a maker omits depth). Unit weight is 60.9 lb versus 54 lb. Listed load or user capacity is 250 lb versus 250 lb.

Resistance is magnetic versus air. Rail / monorail is 53.4 in versus not published in. Max user height is not published in versus not published in. Overall length is 81.8 in versus 77 in. Warranty text is “3-year structural frame; 180 days other parts and components” versus “3-year frame; 90-day parts”.

FitScout spec scores — our weighted rubric, not Amazon stars — are 22 for Sunny SF-RW5515 Magnetic Rower and 32 for Stamina ATS Air Rower 1399. Missing fields do not count as zeros; they drop out of the average. The rubric for rowers is published on the methodology page.

We do not print manufacturer list prices or Amazon prices on this page. Use Check price on each card for the current offer.

Who the Sunny SF-RW5515 Magnetic Rower is for, in our reading of the spec sheet: Budget home users who want quiet magnetic resistance and a machine that folds to 43.3 x 18.9 x 52.4 in. Skip it when Users over 250 lb, or anyone who needs comparable Concept2 splits or a published max user height on the manufacturer page.

Who the Stamina ATS Air Rower 1399 is for: Entry-level buyers who want wind/air resistance and a 48 x 18 x 28 in folded size. Skip it when Users over 250 lb, or anyone who needs a published rail length or max user height on the manufacturer spec table.

If ceiling height is the constraint, prefer the shorter published frame and then run Will-It-Fit with your ceiling, your height, and the exercise. HAJEX’s standing-press rule of thumb is height × 1.33 plus about 9 in for full-size plates. A rack that “fits the room” on assembled height can still fail a pull-up if there is not about a foot above the bar.

This page does not say either product was used, assembled, or worn-in by FitScout. Sources are the manufacturer URLs on each spec row. If a maker updates a dimension after 2026-10-14, the as-of date is the tell.

665 words. Spec-based analysis, not a test report.