Diono Monterey 5iST FixSafe vs Peg Perego Viaggio Flex 120
The Monterey 5iST FixSafe is 0.3 in narrower. The Monterey 5iST FixSafe lists for $40 less.
Only the differences are shown.
| Diono Monterey 5iST FixSafe | Peg Perego Viaggio Flex 120 | |
|---|---|---|
| Type | Booster | Booster |
| List price | $259.99Lowest price | $299.99 |
| Booster weight | 40–120 lb | 40–120 lb |
| Booster height | 38–63 in | 39–63 in |
| Seat weight | 18.7 lb | 14 lbLightest |
| Width | 17 inNarrowest | 17.25 in |
| 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 | Rigid LATCH (optional), 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 | 12 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
Peg Perego Viaggio Flex 120
A high-back booster that folds flat for travel, with rigid LATCH and a long 12-year life.
- Folds flat
- Rigid LATCH optional but recommended
- Long 12-year life
- List price $299.99
- Listed as currently unavailable on Peg Perego's page
Monterey 5iST FixSafe or Viaggio Flex 120?
Answers come from each maker's published specs. Safety and health questions link to the agency or medical source.
Which is easier to travel with?
Monterey 5iST FixSafe: 18.7 lb. Viaggio Flex 120: 14 lb. Neither lists aircraft certification.
What does the extra $40 for the Viaggio Flex 120 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.