US
Comfy

Comfy CC-421 Bottle

  • Bottle
  • 5.9 ounces
4.6/ 5 on Amazon981Amazon ratings400+bought last month4.1ProductDome score
Medium confidenceLast refreshed Aug 4, 2026Amazon data + ProductDome analysis · methodology
Best forYou just need a light bottle and don't mind checking capacity separately

With review volume this high and no major weight complaint on record, the CC-421 reads as a straightforward bottle choice, though confirm capacity before ordering.

View current price on Amazon →

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ProductDome scorecard

How it ranks among the 276 bottles we track

4.1/ 5ProductDome scoreMedium confidence
Owner satisfaction · 56% of scorecategory median 4.6★4.6

4.6★ across 981 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 716 ratings3.7

981 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score3.5

400+ bought on Amazon last month.

Data quality · 11% of score2.5

Brand identity, imagery, description and spec coverage.

The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 276 bottles we track - how the scorecard works · full bottles data report. Confidence: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

The Comfy CC-421 is a baby bottle that weighs 5.9 ounces empty, light enough to hold one-handed during feeds. Beyond weight, Comfy has not published capacity, nipple flow rate or material specs for this listing.

Because the available data stops at weight, this page can speak to how the bottle feels in hand but not to how it performs during a feed. Parents who care about ounce capacity, flow rate or BPA status should check those details on the product page directly before buying.

  • Item weight 5.9 ounces
  • Brand Comfy, model CC-421
  • Rated 4.6 across 981 reviews
  • About 400 bought in the past month

Who it's for

Parents looking for a light, easy to hold bottle who are comfortable checking capacity and flow rate themselves. Less suited to shoppers who need those specs confirmed up front.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out
  • Light at 5.9 ounces for one-handed holding
  • Strong purchase volume, roughly 400 bought in the past month
What to check first
  • Capacity, flow rate and material aren't listed
  • No stated BPA status or cleaning guidance

Performance notes

Bottle performance during feeds comes down largely to nipple flow rate and venting design, neither of which is broken out in this listing, so much of what determines day-to-day feel isn't visible from the data here.

Specifications

BrandComfy
ModelCC-421
Item Weight5.9 ounces

How it compares

This product against the closest alternatives we track in bottles.

ProductAmazon ratingRatingsProductDome score
Comfy CC-421 BottleThis product4.6 / 59814.1 / 5
Lansinoh ‎60044677203700 BottleLansinoh4.8 / 552,4004.7 / 5
Dr. Brown's Natural Flow Anti-Colic Options+ Narrow Baby BottleDr4.8 / 552,0004.7 / 5
Philips SCY903/04 BottlePhilips4.8 / 525,0004.7 / 5
Medela 87095 BottleMedela4.8 / 515,1004.7 / 5
Frequently asked

Questions about the Comfy CC-421

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

How much does the Comfy CC-421 weigh?

5.9 ounces empty, per the listing.

Is the CC-421 BPA free?

Material isn't specified in this listing, so confirm on the packaging or product page.