Brand comparison
Olababy vs Comotomo: an honest comparison
This comparison lives on Olababy's own site, so we will keep it factual and let you decide. Both bottles are soft silicone rather than hard plastic, and both are aimed at babies who move between breast and bottle. The real difference is the shape of the nipple and how much of the feeding journey each range covers, so that is where this guide spends its time.
The short version
- Comotomo makes the Baby Bottle Gen 2, a silicone bottle with a wide dome nipple that their site describes as having built-in air vents, in 5oz and 8oz, in green and yellow, singly or in 2 counts.
- Olababy makes the GentleBottle ($14.99), a 100% soft silicone bottle whose nipple sits off-center at an angle, modeled on how a baby latches at the breast, with a slow controlled flow that matches nursing pace. 4oz and 8oz, six colors, in 1, 2, and 3 packs.
- Both: soft silicone body that compresses in a baby’s hands, a wide opening for cleaning, and a range of replacement nipple flows sold separately.
Side by side
| Olababy GentleBottle | Comotomo Baby Bottle Gen 2 | |
|---|---|---|
| Nipple shape | Off-center, angled to mimic a natural latch, with a slow controlled flow | Symmetric wide dome with built-in air vents, per their site |
| Sizes | 4oz and 8oz | 5oz and 8oz |
| Colors | Mint, Coral, Frost, Sky, Rose, Gray | Green, Yellow |
| Pack sizes | Single, 2 pack ($28.99), 3 pack ($39.99) | Single, 2 count |
| Price, single bottle | $14.99 for 4oz, $15.99 for 8oz | $12.99 for 5oz, $13.99 for 8oz, on their site as of August 2026 |
| Replacement nipples | Five options: Preemie, Slow, Medium, Fast, and an X-cut for thicker liquids. replacement nipples ($7.99 for a 2 pack) | Five options: Preemie, Slow, Medium, Fast, Variable ($6.99 on their site as of August 2026) |
| Recognition | Forbes named it Best Baby Bottle For Newborns (2024) | See their site for current recognition |
Nipple shape is the actual decision
Strip away the color choices and the price difference and one variable is left. Comotomo’s nipple is a symmetric dome, the same shape from every angle, and their site describes it as designed with built-in air vents to mimic breastfeeding. The GentleBottle nipple is deliberately not symmetric: it sits off-center and angles away from the bottle body, because a baby at the breast does not latch onto a shape that is the same from every direction. Their chin drops, the nipple angles up toward the palate, and the latch is asymmetric by nature.
That matters most for the babies this whole category exists to serve: the ones who have already refused a bottle. If the symmetric shape is the thing your baby is rejecting, another symmetric bottle in a different brand is not a new variable. Our guide to bottles for breastfed babies walks through what else to change (who offers it, when, at what temperature) before you blame the bottle at all.
Flow options and growing with the baby
Both brands sell five nipple options separately, which is the right way to do it: flow is a moving target, and a bottle that only ships one speed stops working the month your baby outgrows it. The lineups differ at the top end. Olababy offers Preemie, Slow, Medium, and Fast plus an X-cut nipple cut for thicker liquids, which is what you want once cereal or a prescribed thickener enters the picture. Our nipple flow guide explains how to tell when a baby has outgrown a flow, which is a question parents ask far more often than which brand to buy.
Price, honestly
Comotomo lists a lower headline price: $12.99 for their 5oz against $14.99 for our 4oz, on their site as of August 2026. What the GentleBottle price includes is a smaller 4oz starter size for the newborn stage, six colors instead of two, a 3 pack at $39.99 for families who want a full rotation without buying three singles, and the off-center nipple that is the reason to consider it at all. If headline price is your deciding factor, that is a legitimate way to choose. If your baby is refusing bottles, the nipple shape is worth more than two dollars.
Which one to choose
- Choose the GentleBottle if your baby has refused symmetric bottles, if you want to start at 4oz, if you want an X-cut option for thicker liquids later, or if you want the rest of the drinking range to carry the same baby from bottle to first cup to straw cup.
- Choose Comotomo if the lower headline price is the deciding factor, or if your baby already takes their bottle happily. A bottle your baby accepts is the right bottle, and no comparison table outranks that.
- Do not buy four of anything yet. Bottle acceptance is baby-specific and unpredictable. Buy one, offer it several times across a few days before judging it, and only then buy the multipack of whichever one your baby actually drinks from.
Questions parents ask
Is Olababy or Comotomo better for a breastfed baby?
Both are built for breast to bottle feeding, and babies are individuals, so the honest answer is that it depends on your baby. The design difference is the nipple: Comotomo uses a symmetric wide dome, and the GentleBottle nipple sits off-center at an angle, modeled on how a baby actually latches at the breast. If your baby has already refused a symmetric bottle, the off-center shape is the variable you have not tried yet.
Do Olababy and Comotomo nipples fit each other?
No. Treat them as separate systems. Each brand sells replacement nipples sized to its own bottle neck, so buy the nipple that matches the bottle you own rather than mixing brands.
What size bottle should I start with?
Start small. Olababy makes the GentleBottle in 4oz for the newborn stage and 8oz for later, when feeds get bigger. Comotomo offers 5oz and 8oz. A smaller bottle is easier for small hands to hold and wastes less milk on the feeds a baby does not finish.
Are both bottles dishwasher safe?
Yes. Both brands make bottles from silicone with a wide opening, which is the part that matters at 2am: fewer pieces to take apart and a mouth wide enough to reach into by hand.
Where these facts came from
- Comotomo Baby Bottle Gen 2 product names, sizes, colors, pack counts, replacement nipple options and prices, from Comotomo’s own public product data.comotomo.comthe maker’s own siteread August 11, 2026
- Forbes named the Olababy GentleBottle Best Baby Bottle For Newborns in February 2024. A third party editorial pick, not an award.forbes.comthe publicationread August 13, 2026