Airstream Atlas 25RT vs Dynamax Isata 3 24FW
The difference that matters
Two 25-foot Sprinter coaches that solve power and space in opposite ways. The Atlas 25RT has no slide and no generator; it leans on a 6.9 kWh lithium bank with a 3,000 W inverter, induction cooking and diesel hydronic heat, so the whole coach runs on batteries and diesel. The Isata 3 24FW adds a full-wall slide for an open living area, a queen bed and a booth dinette, and pairs a smaller 200Ah lithium bank and 200 W of solar with a Flex Power 4000i LP generator.
Weight ratings favor the Airstream. Its GVWR is 12,125 lb against 11,030 lb, it carries 2,160 lb of cargo, and it can pull 5,000 lb where the Isata manages 4,220 lb. The Isata holds more fresh water, 35 gallons to 23, while the Atlas sits nearly a foot lower at 10.5 ft against 11.42 ft, which matters under low branches and in parking structures.
The beds split the buyers as well: rear twin beds in the Atlas, a queen in the Isata.
- Airstream Atlas 25RT
- Two travelers who want twin beds, a quiet generator-free power system and the higher tow rating for pulling a small car.
- Dynamax Isata 3 24FW
- Travelers who want a slide-out living area, a queen bed and an LP generator as backup during cloudy stretches off grid.
Weights
Weights
2027 maker figures
- GVWR
- 12,125 lb
- Dry weight (UVW)
- 9,965 lb
- Occupant + cargo (OCCC)
- 2,160 lb
- Towing capacity
- 5,000 lb
2,160 lb between brochure dry weight and GVWR. Water (8.3 lb a gallon), food, gear, propane and dealer-added options all come out of it.
Weights
2027 maker figures
- GVWR
- 11,030 lb
- Dry weight (UVW)
- not published
- Occupant + cargo (OCCC)
- not published
- Towing capacity
- 4,220 lb
Spec for spec
| Airstream Atlas 25RT | Dynamax Isata 3 24FW | |
|---|---|---|
| Dry weight (UVW) | 9,965 lb | — |
| GVWR | 12,125 lb | 11,030 lb |
| Cargo capacity (CCC / OCCC) | 2,160 lb | — |
| GVWR minus dry weight | 2,160 lb | — |
| Towing capacity | 5,000 lb | 4,220 lb |
| Exterior length | 24.8 ft | 24.58 ft |
| Exterior height | 10.5 ft | 11.42 ft |
| Sleeps | 2 | — |
| Slide-outs | 0 | 1 |
| Fresh water | 23 gal | 35 gal |
| Gray water | 31 gal | 32 gal |
| Black water | 27 gal | 32 gal |
| Factory solar | None | 200 W |
| House battery | 6.9 kWh Deep Cycle Lithium Batteries with Built in Heater | Dual low-temp lithium auxiliary batteries (200Ah total) |
| Generator | — | Flex Power 4000i LP with auto transfer switch |
| Chassis | Mercedes-Benz® Sprinter 4500 Cab | Mercedes-Benz Sprinter |
| Engine | Mercedes-Benz® 2.0 L Turbo Charged 4-Cylinder High Output Diesel | 2.0L I4 turbo diesel (208 hp) |
| Fuel | Diesel | Diesel |
Bold is the lighter or larger figure. A dash means the maker does not publish it.
To scale
- Airstream Atlas 25RT · 24.8 ft long · 10′6″ tall
- Dynamax Isata 3 24FW · 24.58 ft long · 11′5″ tall
Airstream Atlas 25RT
Full spec sheet, sources →
Dynamax Isata 3 24FW
Full spec sheet, sources →