2024 Grand Design Solitude 375RES vs 2025 Grand Design Reflection 337RLS

Detailed Comparison

The 2024 Grand Design Solitude 375RES and 2025 Grand Design Reflection 337RLS might look similar on paper, but dig into the details and you'll find meaningful differences.

In terms of footprint, the Grand Design Solitude 375RES stretches 31.5 ft while the Grand Design Reflection 337RLS spans 42.0 ft. Weight-wise, the Grand Design Reflection 337RLS is the lighter rig at 11,100 lbs versus 14,700 lbs.

For sleeping arrangements, the Grand Design Solitude 375RES offers room for 7 and the Grand Design Reflection 337RLS can handle 7. The Grand Design Solitude 375RES benefits from 4 slide-out(s), expanding the interior when parked.

Looking at self-sufficiency, the Grand Design Solitude 375RES packs 71 gal of fresh water and 550W of solar. The Grand Design Reflection 337RLS counters with 56 gal fresh water and 150W solar.

Price is often the deciding factor. The Grand Design Reflection 337RLS starts at $141,000 MSRP, while the Grand Design Solitude 375RES commands $143,000 — a $2,000 gap.

Families with kids will appreciate the extra sleeping capacity and living space. Off-grid campers should pay close attention to solar wattage, battery capacity, and tank sizes. Full-timers should prioritize tank capacity, storage, and overall living comfort.

Both options have earned their place in the market. Your trip style and budget should be the final tiebreakers.