Diono Monterey 5iST FixSafe vs Mifold Hifold
The Hifold is 1.4 in narrower. The Hifold lists for $10 less.
Only the differences are shown.
| Diono Monterey 5iST FixSafe | Mifold Hifold | |
|---|---|---|
| Type | Booster | Booster |
| List price | $259.99 | $249.99Lowest price |
| Booster weight | 40–120 lb | 40–100 lb |
| Booster height | 38–63 in | 43.5–59 in |
| Seat weight | 18.7 lb | 10 lbLightest |
| Width | 17 in | 15.6 inNarrowest |
| Head rule | Use ONLY with children whose ears are below the top of either the fully raised booster seat head support or the fully raised vehicle headrest. | Not listed |
| Installation | LATCH, seat belt | seat belt |
| Load leg | No | No |
| Anti-rebound bar | No | No |
| Rotates | No | No |
| Aircraft label | Not certified for aircraft | Not certified for aircraft |
| Expires after | 8 years | 7 years |
Diono Monterey 5iST FixSafe
A fold-flat high-back booster that collapses to carry-on size, with a 12-position adjustable headrest and backrest.
- Folds small for travel and carries on
- Narrow 17 in width
- Wide 40 to 120 lb range
- Heavy at 18.7 lb for a travel booster
- Fairly high regular price
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
Monterey 5iST FixSafe 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 5iST FixSafe or the Hifold?
The Diono Monterey 5iST FixSafe: it goes booster, up to 120 lb. The Hifold goes booster, up to 100 lb. The Monterey 5iST FixSafe expires after 8 years.
Which is easier to travel with?
Monterey 5iST FixSafe: 18.7 lb. Hifold: 10 lb. Neither lists aircraft certification.
What does the extra $10 for the Monterey 5iST FixSafe 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.