2025 Grand Design Solitude 390RK vs 2024 Grand Design Reflection 303RLS

Detailed Comparison

Two popular options on many shoppers' shortlists — the 2025 Grand Design Solitude 390RK and the 2024 Grand Design Reflection 303RLS. Let's see how they compare across the specs that matter most.

Dimensionally, you're looking at 30.5 ft for the Grand Design Solitude 390RK and 28.0 ft for the Grand Design Reflection 303RLS. The Grand Design Solitude 390RK carries an extra 7,000 lbs, which affects tow vehicle requirements and fuel economy.

The Grand Design Solitude 390RK sleeps 10 while the Grand Design Reflection 303RLS accommodates 4. Slide-outs play a role in livability: the Grand Design Solitude 390RK has 4 and the Grand Design Reflection 303RLS has 3.

For boondocking enthusiasts, tank sizes matter. Fresh water capacity goes to the Grand Design Reflection 303RLS at 80 gallons versus 70 gallons. Solar-wise, you get 400W on the Grand Design Solitude 390RK and 250W on the Grand Design Reflection 303RLS. Battery banks are 300 Ah and 200 Ah.

At $62,000 MSRP for the Grand Design Solitude 390RK and $60,000 for the Grand Design Reflection 303RLS, the Grand Design Reflection 303RLS saves you $2,000. With only a 3% 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.

Whichever you choose, you'll be getting a capable rig. Just make sure to inspect one in person before signing.