2025 Grand Design Momentum M-Class 395MS vs 2024 Forest River XLR Boost 27QBX

Detailed Comparison

Shopping for an RV and torn between the 2025 Grand Design Momentum M-Class 395MS and the 2024 Forest River XLR Boost 27QBX? We've put together a detailed spec comparison to help you decide.

In terms of footprint, the Grand Design Momentum M-Class 395MS stretches 42.5 ft while the Forest River XLR Boost 27QBX spans 42.5 ft. Weight-wise, the Grand Design Momentum M-Class 395MS is the lighter rig at 10,300 lbs versus 10,900 lbs.

Capacity-wise, expect to sleep 7 in the Grand Design Momentum M-Class 395MS versus 6 in the Forest River XLR Boost 27QBX. With 0 and 1 slide-outs respectively, the parked floor plans differ significantly.

Tank capacities are a key off-grid consideration. The Grand Design Momentum M-Class 395MS carries 61 gal of fresh water, 53 gal gray, and 42 gal black. The Forest River XLR Boost 27QBX offers 81 gal fresh, 61 gal gray, and 38 gal black. The Forest River XLR Boost 27QBX has the edge for extended dry camping.

Budget-wise, the Forest River XLR Boost 27QBX is listed at $174,000 compared to $176,000 for the Grand Design Momentum M-Class 395MS.

For family camping trips, the larger floor plan and additional berths make a real difference. For boondocking, the model with superior solar and battery setup will keep you comfortable off the grid longer. If you're going full-time, the larger tanks and more robust build quality matter enormously.

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