Skip Hop Infant Bath Tub 3-Stage Grow With Baby Smart Sling MOBY Bathtub, Grey Review (2026)

One tub across three growth stages

Skip Hop built the MOBY tub around a simple idea: parents should not need to buy a new bathtub every few months as a baby grows. The grey tub measures about 27.5 inches long, 19 inches wide and 11.5 inches tall, and weighs only 3.6 pounds, light enough to lift in and out of a bathroom sink or tub without strain. It covers three stages from newborn through a baby who can sit up on their own, which is the main appeal for parents furnishing a small bathroom who want fewer bath products cluttering the space over the first year.

How the Smart Sling and three stages work

The Smart Sling is a fabric hammock built into the tub that locks into two positions: an upper position that cradles a newborn's full body for stage one bathing up to 15 pounds, and a lower position that supports an infant learning to sit for stage two up to 20 pounds. Once a baby reaches stage three, around 6 months and up to 25 pounds, the sling comes off and the baby sits directly in the tub's contoured shell. A built-in swivel hook lets the tub hang from a shower head, shower bar or towel rack for drying and storage between baths, which helps when counter space is limited.

Bath time and keeping the sling clean

Day to day, moving through the three stages just means repositioning or removing the sling as a baby grows, without buying separate inserts. The tub's interior has a non-slip texture and a drain plug for quick draining after each use, so tipping the water out at the end of a bath is simple even for a single parent working solo. Because the Smart Sling is fabric, it needs time to dry fully between baths to avoid mildew building up in the material, which is the main upkeep task with this design compared with an all-plastic tub. Skip Hop lists the tub as PVC-free and phthalate-free, materials details worth knowing for parents who screen bath products for that specifically.

How it compares with foldable bath tubs

Against foldable options like the Stokke Flexi Bath, the OXO Tot Splash and Store, or the Frida Baby 4-in-1, the MOBY's rigid shell is the clear trade-off, since none of those competitors need full-size storage the way this tub does. What the MOBY offers instead is the Smart Sling itself, a feature none of the folding tubs in this category match exactly, since most rely on a removable foam insert rather than a built-in hammock. Parents choosing between the two approaches should weigh whether storage space or newborn support matters more, since a small bathroom benefits most from a tub that folds flat.

Verdict: strong newborn support, weaker on storage

For parents who prioritize a secure, sling-supported newborn bath over compact storage, the MOBY earns its our score of 7.3 out of 10 by genuinely covering three growth stages in one lightweight tub. The trade-off is real in a small bathroom, since the rigid shell does not fold flat and needs a shelf, closet or hanging hook, which the built-in swivel hook does help solve. Parents working with very limited storage should compare this against a folding tub instead, while those who value the Smart Sling's newborn support should let that feature outweigh the storage trade-off.

Frequently asked questions