MAM 4.5oz Easy Start Anti-Colic+ Wide Neck Vented Baby Bottle
- Bottle
- 4.5 ounces
- 4.5 ounces
- Baby
- Better rated than 69%
- More reviewed than 94%
A dependable starter bottle for the newborn stage, sized small on purpose; expect to move up in ounces within a few months.
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How it ranks among the 276 bottles we track
4.7★ across 16,316 Amazon ratings, Bayesian-smoothed toward the category average.
16,316 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
1,000+ bought on Amazon last month.
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: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
MAM's Easy Start Anti-Colic+ is a 4.5 ounce wide neck baby bottle built around a self-sterilizing vent base designed to cut air intake during feeds. It suits parents combination feeding a young infant who wants a smaller starter-size bottle.
The wide neck shape is designed to mimic breastfeeding for an easier switch between breast and bottle, and the vented base sits underneath the nipple rather than requiring a separate insert. At 4.5 ounces it is sized for newborn portions rather than a full feed, so most parents pair it with MAM's larger sizes as the baby grows.
- 4.5 ounce capacity
- Wide neck, anti-colic vented base
- Rated for the baby age range
- Over 16,000 ratings at 4.7 stars
Who it's for
Suits parents introducing a bottle to a breastfed newborn who want an anti-colic vent without extra parts to lose or clean. Not the right size for a toddler already drinking a full bottle at each feed.
Strengths and trade-offs
Drawn from this product's published specifications.
- Vent built into base, no separate insert to lose
- Wide neck shape for breast-to-bottle switching
- Compact 4.5 oz size for newborn portions
- Small capacity means an early upgrade to a larger bottle
- Amazon listing has no seller description or attribute detail
Performance notes
The anti-colic venting is built into the base of the bottle rather than a removable straw, so there is one less part to align during assembly. MAM markets the base as self-sterilizing, meaning it is designed to be cleaned in the microwave without disassembly, though parents should still follow the included instructions for how long and how often.
Specifications
| Brand | MAM |
|---|---|
| Capacity | 4.5 ounces |
| Item Weight | 4.5 ounces |
| Age Range | Baby |
Other MAM bottles
How it compares
This product against the closest alternatives we track in bottles.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| MAM 4.5oz Easy Start Anti-Colic+ Wide Neck Vented Baby BottleThis product | 4.7 / 5 | 16,316 | 4.6 / 5 |
| Lansinoh 60044677203700 BottleLansinoh | 4.8 / 5 | 52,400 | 4.7 / 5 |
| Dr. Brown's Natural Flow Anti-Colic Options+ Narrow Baby BottleDr | 4.8 / 5 | 52,000 | 4.7 / 5 |
| Philips SCY903/04 BottlePhilips | 4.8 / 5 | 25,000 | 4.7 / 5 |
| Medela 87095 BottleMedela | 4.8 / 5 | 15,100 | 4.7 / 5 |
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Questions about the MAM bottles
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What age is the MAM Easy Start Anti-Colic+ bottle designed for?
MAM lists it for the baby age range, and the 4.5 ounce capacity fits typical newborn portion sizes.
Does this bottle need a separate anti-colic insert?
No, the vent is built into the base of the bottle itself, so there is no additional part to assemble.
Is the MAM wide neck bottle shape meant to feel like breastfeeding?
Yes, MAM designs the wide neck shape to be closer to a breast shape for an easier switch between breast and bottle.