2025 Jayco Eagle 321RSTS vs 2025 Heartland Landmark 365 Chesapeake

Detailed Comparison

Both the 2025 Jayco Eagle 321RSTS and the 2025 Heartland Landmark 365 Chesapeake have loyal followings, and for good reason. Here's an objective look at how they measure up.

Starting with size, the Jayco Eagle 321RSTS measures 42.0 ft long and tips the scales at 15,700 lbs dry weight. The Heartland Landmark 365 Chesapeake comes in at 30.5 ft with a dry weight of 14,700 lbs. That gives the Jayco Eagle 321RSTS roughly 11.5 extra feet of length.

The Jayco Eagle 321RSTS sleeps 7 while the Heartland Landmark 365 Chesapeake accommodates 5. Slide-outs play a role in livability: the Jayco Eagle 321RSTS has 2 and the Heartland Landmark 365 Chesapeake has 4.

For boondocking enthusiasts, tank sizes matter. Fresh water capacity goes to the Jayco Eagle 321RSTS at 92 gallons versus 52 gallons. Solar-wise, you get 300W on the Jayco Eagle 321RSTS and 550W on the Heartland Landmark 365 Chesapeake. Battery banks are 250 Ah and 100 Ah.

At $105,000 MSRP for the Jayco Eagle 321RSTS and $107,000 for the Heartland Landmark 365 Chesapeake, the Jayco Eagle 321RSTS saves you $2,000. With only a 2% price difference, the choice comes down to features rather than cost.

If you're traveling with a family, look for the model with more sleeping positions and better storage. Boondockers: look at the fresh water capacity and solar/battery systems — they determine how long you can stay out. For the full-time RV lifestyle, every gallon of tank capacity and every inch of counter space counts.

The numbers tell one story, but the feel of a floor plan is personal. Schedule a walkthrough before you decide.