Diono Monterey 6DXT SafePlus High-Back Booster vs Mifold Hifold

The Hifold is 2.1 in narrower. The Monterey 6DXT SafePlus High-Back Booster lists for $40 less.

Only the differences are shown.

Diono Monterey 6DXT SafePlus High-Back BoosterMifold Hifold
TypeBoosterBooster
List price$209.99Lowest price$249.99
Booster weight40–120 lb40–100 lb
Booster height38–63 in43.5–59 in
Seat weight16.3 lb10 lbLightest
Width17.7 in15.6 inNarrowest
Head ruleDO NOT use this child restraint backless unless there is a vehicle headrest for that seating position.Not listed
InstallationLATCHseat belt
Load legNoNo
Anti-rebound barNoNo
RotatesNoNo
Aircraft labelNot certified for aircraftNot certified for aircraft
Expires after8 years7 years

Diono Monterey 6DXT SafePlus High-Back Booster

High-back belt-positioning booster from Diono with LATCH connectors; the backless mode requires a vehicle headrest.

  • Lists a 40-120 lb range
  • LATCH connectors for attaching the booster
  • Backless use is allowed with a vehicle headrest
  • Maker states it cannot be used on an airplane
  • Maker's age guidance is only 'typically five years'

Mifold Hifold

A folding high-back booster built for travel, with many adjustment combinations.

  • Folds to 13.5 x 13.5 x 10.7 in with a carry strap
  • Machine-washable covers
  • 243 adjustment combinations
  • List price $249.99
  • 10 lb, heavy for a travel seat
Ask the meadow

Monterey 6DXT SafePlus High-Back Booster or Hifold?

Answers come from each maker's published specs. Safety and health questions link to the agency or medical source.

Which one will my child use longer, the Monterey 6DXT SafePlus High-Back Booster or the Hifold?

The Diono Monterey 6DXT SafePlus High-Back Booster: it goes booster, up to 120 lb. The Hifold goes booster, up to 100 lb. The Monterey 6DXT SafePlus High-Back Booster expires after 8 years.

Which is easier to travel with?

Monterey 6DXT SafePlus High-Back Booster: 16.3 lb. Hifold: 10 lb. Neither lists aircraft certification.

What does the extra $40 for the Hifold get you?

No extra listed feature from the ones we track (load leg, anti-rebound bar, rotation, flame retardants). Compare fabrics, ease of install, and fit in your car. Both meet the same federal crash standard.

Still wondering? Write to us at hello@cribpicks.com and we'll look it up.