Safety 1st onBoard LTX
The Safety 1st onBoard LTX rear-faces up to 30 lb, per Safety 1st.
- 30 lbRear-facing to
onBoard LTX: key facts
- The Safety 1st onBoard LTX rear-faces from 4 to 30 lb and up to 32 in tall, per Safety 1st.
- It installs with LATCH (with base).
From Safety 1st's published specs. Always follow the limits on your seat's labels.
How the onBoard LTX stacks up
Against the 74 infant car seats we track. The shaded band is where the middle half of them fall; the dot is this one.
The same as most infant car seats (30 lb).
Strollers named with the onBoard LTX
4 strollers on Cribpicks are named with the onBoard LTX in a maker's fit list. Listed stroller fit: Monbebe Hilaire stroller (QuickClick); Hilaire manual says use only IC362 infant car seats.
| Stroller | How it is listed |
|---|---|
| Monbebe Hilaire 6-in-1 Modular | Named by Monbebe |
| Safety 1st Grow and Go Flex 8-in-1 | Named by Safety 1st |
| Safety 1st Grow and Go Sprint 6-in-1 | Named by Safety 1st |
| Safety 1st Turn and Go 360 Rotating Modular | Named by Safety 1st |
Matched by brand and model name. Fit can depend on the model year, so check yours with both makers.
Where to buy the onBoard LTX
Prices and availability change. We may earn a commission from some links.
- Check for recalls: Search the agency's recall list with the model number and date code from the label: NHTSA recall search.
- Car seat use and installation: see NHTSA's car seat page, which also lists free car seat inspection by certified technicians. Check the label and the maker's instructions, and ask your pediatrician about your child.
Full specs
| Safety 1st onBoard LTX | |
|---|---|
| Type | Infant car seat |
| Rear-facing weight | 4–30 lb |
| Rear-facing height | Up to 32 in |
| Installation | LATCH (with base) |
| Works with strollers | Monbebe Hilaire stroller (QuickClick); Hilaire manual says use only IC362 infant car seats |
Compare the onBoard LTX with
How each closest rival differs from the onBoard LTX, from the makers' specs.
- GracoSnugRide SnugFit LXrear-facing to 30 lb17.5 in wideCompare side by side
- GracoSnugRide SnugFit DLXrear-facing to 30 lb17.5 in wideCompare side by side
- DionoLiteClik30 R SafePlusrear-facing to 30 lb17.2 in wideCompare side by side
- BOB GearChamprear-facing to 30 lb16.9 in wideCompare side by side
onBoard LTX: questions answered
From Safety 1st's published specs, last checked 2026-11-06.
Does the Safety 1st onBoard LTX rear-face longer than other infant seats?
24 of the 97 infant seats we track rear-face to a higher weight than its 30 lb. The highest is the Baby Jogger City GO 2 at 35 lb. NHTSA: stay rear-facing "until he or she reaches the top height or weight limit allowed by your car seat's manufacturer." (NHTSA)
Can you use the Safety 1st onBoard LTX in a taxi or Uber without the base?
Safety 1st doesn't list a baseless install, so plan on bringing the base. See infant seats that install without a base.
onBoard LTX or SnugRide SnugFit LX: what's different?
By the makers' specs, the SnugRide SnugFit LX has an anti-rebound bar. See every spec side by side.
Is it OK to buy a used onBoard LTX?
NHTSA publishes guidance on used car seats on its car seat page. Check the label and the maker's instructions, and ask your pediatrician about your child.
Still wondering? Write to us at hello@cribpicks.com and we'll look it up.
More infant car seats
- GracoSnugRide SnugFit Eliterear-facing to 30 lb9.8 lb
- GracoPremier SnugRide SnugFit XTrear-facing to 30 lb9.8 lb
- NunaPIPA urbnrear-facing to 30 lb17.5 in wide
- Maxi-CosiMico Luxerear-facing to 30 lb8-year expiration
- Maxi-CosiMico Luxe+rear-facing to 30 lb8-year expiration
- CoscoLight 'n Comfyrear-facing to 30 lb8-year expiration
Where these specs come from
- safety1st.com/products/monbebe-hilaire-6-in-1-modular-travel…
- images.salsify.com/image/upload/s--OEkd-RO1--/q8labwdrbvcgiu9fiibc.pdf
Last checked 2026-11-06. Spot something wrong? Tell us. Read our editorial and safety policy and corrections.