Baby Gear Items Worth Buying New

By Felicity Leach, PharmD, CLC — Founder of Steamboat Lactation & Sleep

Last time, I shared my top secondhand picks. Today it's the flip side: the items where I think buying new is worth it, either for safety, hygiene, or just peace of mind.

1. Convertible Car Seat

A convertible car seat rides rear-facing for infants and later switches to forward-facing, so it grows with your child for years. I bought mine for around $300 during a Black Friday sale, and it's held up wonderfully, from 8 pounds all the way to where my child sits in it forward-facing now. With car seats, I recommend buying new or being very cautious with anything secondhand: check the expiration date, confirm it's never been in an accident, and make sure nothing is missing.

If you're a hands-on learner like me, ask a friend or family member who's experienced with car seats to double check your installation. My sister-in-law showed me the tricks and what to look for, and it made a real difference in how confident I felt.

2. Bucket Car Seat and Base

The infant bucket seat that clicks in and out of its base is the other half of the car seat equation for newborns. Same rule applies here: new is the safer bet, since you want full certainty about its history.

3. Bottles

I'd buy bottles new, or buy glass secondhand and replace the plastic nipples and parts. Biofilm can build up in ways that are hard to fully clean out, even between kids, so it's worth starting fresh. If you're breastfeeding, you likely don't need more than a couple to start. You can always grab more later if you need them.

4. Pacifiers

These are inexpensive enough that there's no real reason to buy used, and a fresh one means you're not wondering about wear on the nipple or seal.

5. Diapers (Newborn and Size 1)

I'd still buy a small pack of newborn size before baby arrives, even though it's hard to judge exact size ahead of time. Different brands fit differently, and you won't know until baby is here whether a brand works well or causes irritation. Huggies tend to run tight around the thighs, Pampers run a bit bigger there, and Millie Moon tends to run large. A small pack of a few different brands lets you test the fit and watch for any sensitivity or rashes before committing to a bigger box. Size 1 is a safer bet to buy a bit more of, since most babies move into it fairly quickly, but don't overbuy until you know what size and brand your baby needs!

6. Breast Pump

Get this one new. In Colorado, insurance is required to cover a pump at no cost, and there are websites that make ordering easy and will also send replacement parts as you need them. I've used Aeroflow myself, though I haven't tried the other options out there to compare.

7. Sound Machine

These are hard to find secondhand, and honestly, they're worth buying new anyway since you'll likely use one for years. I bought a new portable one with a built-in night light for my second baby, so we could bring it along when we traveled, and it was helpful during nighttime feeds and changes too. We use a Hatch sound machine now, and my older child still uses its color-changing light as a cue for when it's okay to get up in the morning.

8. Bassinet and Crib Sheets

Sheets need to fit snugly to reduce suffocation risk, so this isn't the place to guess about wear or stretch from repeated washing. They're not a big expense, and buying new gives you certainty about the fit.

9. Baby Chew Toys

A chew toy is any simple, baby-safe object designed for teething and gumming: silicone rings, textured teethers, and soft rubber shapes are all common examples. You don't need the $25 one that promises to make your baby brilliant. A basic silicone teether does the same job. I learned that one the hard way.

The Bottom Line

None of this is about buying more. It's about knowing where the new-versus-used line actually matters, so you can spend a little more where it counts and save everywhere else.

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