2025 Heartland Milestone 370FLMB vs 2024 Forest River XLR Boost 27QBX

Detailed Comparison

Choosing between the 2025 Heartland Milestone 370FLMB and the 2024 Forest River XLR Boost 27QBX? Both are excellent options in the RV world, but they cater to different priorities.

The Heartland Milestone 370FLMB measures 38.0 ft in length at 10,700 lbs, compared to the Forest River XLR Boost 27QBX's 42.5 ft and 10,900 lbs. GVWR ratings sit at 14,400 lbs and 13,900 lbs respectively.

For sleeping arrangements, the Heartland Milestone 370FLMB offers room for 6 and the Forest River XLR Boost 27QBX can handle 6. The Heartland Milestone 370FLMB benefits from 3 slide-out(s), expanding the interior when parked.

Looking at self-sufficiency, the Heartland Milestone 370FLMB packs 74 gal of fresh water and 250W of solar. The Forest River XLR Boost 27QBX counters with 81 gal fresh water and 350W solar.

Price is often the deciding factor. The Heartland Milestone 370FLMB starts at $173,000 MSRP, while the Forest River XLR Boost 27QBX commands $174,000 — a $1,000 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.

Take these specs as a starting point, then go see them in person — there's no substitute for stepping inside.