The Jeanneau Sun Odyssey 389 2019 vs Jeanneau Sun Odyssey 40 DS 1997 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.
On paper these two are close siblings in the size department — Jeanneau Sun Odyssey 389 2019 at 38,7 ft versus Jeanneau Sun Odyssey 40 DS 1997 at 40,0 ft. Weight tells a clearer story for trailering families: the Jeanneau Sun Odyssey 40 DS 1997 tips the scales at 15 840 lbs — 584 lbs less than the Jeanneau Sun Odyssey 389 2019 at 15 256 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.
Both boats share a closely matched power ceiling — 29 hp for the Jeanneau Sun Odyssey 389 2019 and 40 hp for the Jeanneau Sun Odyssey 40 DS 1997. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup. Both carry nearly identical fuel loads — 34 gal and 36 gal — so range won't be a tiebreaker here.
For family outings this is probably the sharpest distinction between the two. The Jeanneau Sun Odyssey 40 DS 1997 is rated for 12 passengers, while the Jeanneau Sun Odyssey 389 2019 caps at 11. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Jeanneau Sun Odyssey 40 DS 1997 could be the deciding factor.
Both boats sit in a similar displacement bracket — 15 256 lbs for the Jeanneau Sun Odyssey 389 2019 and 15 840 lbs for the Jeanneau Sun Odyssey 40 DS 1997. Comparable displacement means broadly similar seakeeping behaviour and load capacity, though hull form and ballast ratio will still produce noticeably different sailing characteristics.
Draft is a practical consideration that many buyers underestimate until they're already at the marina. The Jeanneau Sun Odyssey 389 2019 draws 6,6 ft, compared to 4,1 ft for the Jeanneau Sun Odyssey 40 DS 1997. That 2,5-foot difference affects which anchorages you can access, which haul-out facilities will take you, and how carefully you need to read the tide tables in shallower cruising grounds.
The Jeanneau Sun Odyssey 389 2019 uses Sloop rigging. Helm style differs too: the Jeanneau Sun Odyssey 389 2019 uses a 2 wheels1 versus a 1 wheel on the Jeanneau Sun Odyssey 40 DS 1997. Wheel helms give better leverage and visibility on larger boats; tillers offer direct feedback and simplicity on smaller ones. For auxiliary power the Jeanneau Sun Odyssey 40 DS 1997 carries a 40-hp engine against 29 hp on the Jeanneau Sun Odyssey 389 2019. Motoring range and ability to punch through a foul current or enter a tight marina under power will favour the more powerful installation.
Hull speed is rated at 7,8 knots for the Jeanneau Sun Odyssey 389 2019 and 7,7 knots for the Jeanneau Sun Odyssey 40 DS 1997.
Bottom line: The Jeanneau Sun Odyssey 389 2019 and Jeanneau Sun Odyssey 40 DS 1997 are closely matched on paper. A sea trial on both in representative conditions is the only reliable way to find which one suits your sailing style, home port, and intended cruising ground.