Comotomo vs Philips Avent Baby Bottle Brands Compared

Balint Horvath, PhD

Writer, parent, and veteran of baby feeding battles.


If you’re shortlisting bottle brands for your baby, Comotomo and Avent are among the top two to consider. Whether you’re opting for the dual-venting anti-colic feature of the Comotomo or prefer the ultra-soft nipple of the Avent Natural, it’s important to consider all the features. Both bottles have features that make them great feeding options. Personally, I’m hooked on the dual-venting feature of the Comotomo!

The main difference between Comotomo and Philips Avent Natural bottles comes down to the vent system. The Comotomo has a dual-vent system whereas the Avent Natural has a single airflex valve. Comotomo bottles are made of silicone material which makes it easier for you and the baby to handle. 

Are Comotomo bottles better than Avent’s?

One bottle is not necessarily better than the other and that’s also the case when evaluating if Comotomo is better or an alternative to Avent bottles. It largely comes down to what your baby needs. If your baby suffers from colic-like symptoms, they might benefit more from Comotomo’s dual-vent system which aids anti-colic feeding. Avent’s silicone material that mimics mom’s breast makes it easy to transition between breast-fed to bottle-fed. 

Two Brands’ Features compared

When you’re considering Comotomo and Avent bottles for your baby, it’s important to compare their features. I’ve listed a few of the most important features to consider. 

Flow levels

Nipples with the correct flow levels ensure that your little one doesn’t suck out more milk than they can swallow at one time. Comotomo nipples grow with your baby and are available in four different stages. These include:

  • Truly slow flow – 1 hole for 0 – 3 months
  • Medium flow – 2 hole for 3 – 6 months
  • Fast flow – 3 holes for 6+months
  • Variable flow (Y-cut) for 6+ months (thicker fluids)

Avent flow rates also have four different nipples with different flow rates. These include:

  • 0 – Newborn nipple – 1 hole 0 + for breast and bottle-fed
  • 1 – Slow flow nipple – 2 holes for 1 month +
  • 2 – Medium flow nipple – 3 holes for 3+ months
  • 3 – Fast flow – recommended for 6+ months


Since both bottles are anti-colic bottles and are made up of various components, they are both prone to leaking. Leakage in these two bottles happens because the vent systems aren’t assembled properly. 

Another reason is milk build-up in the valves or nipples. Both bottle types need to be cleaned properly and assembled correctly before each feeding. Reading about Avent or Comotomo bottles leaking will give you some insight into preventing it. 


It’s important to consider the weight of a bottle because a heavier bottle will be difficult and uncomfortable for your little one to hold. A Comotomo bottle weighs 0.66lbs while the Avent is 0.56lbs. 


Fortunately, both brands are easy to assemble. The Avent Classic, however, has fewer parts because it doesn’t have the same type of anti-colic system as the Comotomo. 

The Comotomo can be assembled by filling the bottle and then firmly tightening the cap, ring and nipple onto the bottle. The Avent is assembled similarly. Except, you need to massage the valve to make sure it’s open. This will ensure the anti-colic feature is working. 

Ease of cleaning – Comotomo vs Avent

Both bottles are dishwasher safe and can easily be washed in a dishwasher basket. An interesting post to read is my best dishwasher basket for your Comotomo bottles article to give you an idea of how to keep your bottles clean. 

Alternatively, both bottles can be washed by soaking in boiling water for about 5 minutes. Ensure that the bottles are taken apart so that all components are cleaned. This will also ensure that there’s no milk build-up in the valves or nipples.

Comotomo vs Avent Anti Colic System

Many parents are opting for anti-colic bottles straight out the gate. That means they don’t want to go through the process of trying traditional bottles and then moving on to anti-colic bottles. With this in mind, it’s essential to consider what makes each anti-colic feature successful. 

Comotomo bottles are popular because they have two anti-colic vents. These vents are placed on the nipple to ensure proper ventilation. The right amount of airflow prevents any excess air from creating gas, spit-up or colic. 

Avent bottles, on the other hand, have a single unique AirFree vent that flexes as the little one feeds. This prevents a vacuum build-up and instead of the baby inhaling the excess air, it gets pushed back into the bottle. This effectively reduces colic-like symptoms.

Comotomo bottles

Comotomo bottles are made of silicone material that mimics human skin. This helps prevent nipple confusion making it easy for your baby to switch between breast and bottle feeding. Another good comparison to read would be differences between a Comotomo and Dr. Brown bottles.

Comotomo Baby Bottle, Green, 8 oz (2 Count)


  • Silicone material mimics human skin and allows easy latching on
  • Different sized nipples for newborns and infants
  • Dual anti-colic vents facilitate better air circulation
  • Slow and fast flow options
  • Microwave, dishwasher & freezer safe
  • Bottles are heat-resistant


Watch this short clip from the brand to see how the Comotomo bottle works! 


  • Tips over when getting empty
  • Nipple might be too long for smaller infants
  • Can be pricey

Avent bottles

Philips Avent Anti-Colic Baby Bottle 11oz, Clear, Pack of 2, SCF406/24

Avent bottles can be one of two types: Avent Classic or Avent Natural. This is why I wrote about comparing Avent Classic vs Natural in a separate article. Classic is a traditional bottle type without an anti-colic feature. The Avent Natural is a more popular choice because its ergonomic shape is more comfortable to handle. The natural option has a breast-shaped nipple while the classic has a plain nipple. Avent nipples can collapse and you can read more on baby bottle nipple collapsing in a separate article.

If you want to read about whether Avent could be a good Comotomo alternative, I wrote another article about that. 


  • Wider nipple makes it easy to latch on 
  • Breast shape makes transitioning between breast and bottle easy
  • Soft petals in the silicone help prevent nipple collapse
  • Ergonomic shape makes it easy for tiny hands to hold


  • Easy to assemble
  • Simple to clean
  • Easy for baby to hold
  • Compatible with most breast pumps
  • Available in glass or polypropylene options


  • Glass options have fewer sizes available
  • Base might be too wide for some bottle holders

Final Thoughts

Both bottle brands would make an ideal option for your baby. However, for a baby who suffers from colic-like symptoms, it’s a good idea to consider the Comotomo bottle because it’s a dual-venting system! 

And what about Avent bottles vs Tommee Tippee, two top brands? That’s another article I’ve written recently. Or wondering how Avent bottles compare to NUK’s?

Last update on 2024-04-28 / Affiliate links / Images from Amazon Product Advertising API

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I’m Balint, founder of this site and a father (and dad) to a baby-turned toddler. I found the world of babies so fascinating that I started a blog dedicated only to that topic. By the way, I studied physics, engineering (PhD, MSc), and therefore I do a thorough research when I write about something. Since it’s a blog, of course I also write about my personal experiences.

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