01 — A lie-flat mode on a budget
Safety 1st Grow and Go Sprint 6-in-1 Modular Travel System
Safety 1st
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The only system here with a genuine lie-flat carriage mode, which is what lets a newborn nap in the stroller instead of in the car seat.
The six ways Safety 1st advertises are three seating modes — infant car seat carrier, lie-flat carriage and toddler stroller — each of which can face you or face forward. The carriage mode is the one that earns the extra money over the Smooth Ride, and not for comfort reasons: pediatric guidance is to limit continuous time in a semi-reclined car seat for young infants, so a flat surface in the stroller is where a long nap should happen. Getting that at this price is unusual; it is normally a bassinet accessory on a premium frame. The rest is solid rather than special. The stroller takes a child to 50 lb and 41 in, the onBoard FLX carrier is under 8 lb and the seat covers 4-30 lb up to 32 in, and the fold is one-handed and self-standing. Safety 1st does not publish a stroller weight or folded dimensions, which is the usual gap at this price and a real problem if your trunk is small.
What works
- A true lie-flat carriage mode at a price where that is normally an accessory
- Every mode is reversible, so the newborn months can be parent-facing
- Highest published infant seat height limit of the budget picks, at 32 in
What to weigh
- No published stroller weight or folded dimensions
- Modular frames are bulkier folded than a single-mode stroller
- Costs more than the Smooth Ride for a mode some families will never use
| Spec | Published figure | Read from |
|---|---|---|
| Stroller capacity | 50 lb, 41 in max height | Safety 1st product page |
| Infant seat | 4-30 lb, up to 32 in | Safety 1st product page |
| Carrier weight | Just under 8 lb | Safety 1st product page |
| Modes | Three seating modes, each reversible — car seat carrier, lie-flat carriage, toddler seat | Safety 1st product page |
| Fold | One-hand fold with self-stand | Safety 1st product page |
Verified as currently sold and checked against NHTSA's recall record on 2026-10-29; no recall named this model. Recalls apply to specific manufacture-date ranges, so check the date stamp on your own unit. We do not print a star rating for this seat: NHTSA publishes an Ease-of-Use rating, and we would rather send you to the source than reprint a figure we could not read first-hand. Specifications come from the manufacturer or retailer listing.



