Mother sitting on a sofa bottle-feeding her swaddled newborn from a small Baby K glass bottle

Buying guide

Best Baby Bottles & Feeding Accessories 2026

Sofia Lin · March 29, 2026

Short answer: buy four to six baby bottles in a 5 oz newborn size with slow-flow nipples, test them for a week, and only then buy more of the one your baby accepts. Babies are picky about nipple shape and flow, so the best bottle is the one yours will take — and a $44 mixed-size starter set is a cheaper experiment than a full matching system.

If you are still choosing rather than comparing, our baby bottles 101 guide covers materials, nipple flow and sterilizing, the formula feeding guide covers preparation and storage, and baby bibs and feeding essentials covers everything that catches the mess.

The sections below follow your baby's first two years in order: newborn bottles, larger bottles, first cups, toddler water bottles, then pumps and the small parts that keep everything clean. Brands you will meet along the way include PopYum, Haakaa, Mason Bottle and b.box. If you are combination feeding, the newborn and pump sections are the two to read first.

Pro Tip

Start with a small set (4–6 bottles) in a newborn size before investing in larger quantities. Every baby has preferences for nipple flow, material, and teat shape—what works for your friend's baby might not work for yours. Being flexible and willing to try different brands is the key to finding your perfect match.

What parents actually buy: baby bottles

Based on real purchases — not sponsorships

Most “best baby bottles” lists are affiliate picks. This one isn’t: this ranking covers all 19 baby-bottle brands we carry, ordered by what parents actually put in their carts. jili leads the category, selling about 2× more than the next brand.

Rank	Brand	Popularity index
#1	jili	100
#2	Nanobebe	47
#3	Mason Bottle	29
#4	Ceres Chill	28
#5	Lowcountry Littles	25
#6	Mushie	20

Based on recent parent purchases across all 19 baby-bottle brands we carry. The bar shows each brand relative to the category leader (leader = 100). Updated July 2026.

Newborn Bottles (0–3 Months)

A newborn bottle needs two things: a small 4–5 oz body, because early feeds are small and a half-empty large bottle just holds more air, and a slow-flow (level 1) nipple, so milk arrives at a pace a new baby can manage. "Anti-colic" means the bottle is vented or shaped so less air is swallowed with the milk. It is a reasonable feature to pick from the start, but no vent treats colic itself — if your baby is persistently unsettled after feeds, that is a conversation for your pediatrician, not a reason to keep buying bottles.

The PopYum 5 oz anti-colic bottle ($34.99 for a three-pack with #1 slow-flow nipples) adds something useful for formula families: it stores powder and water separately and mixes them when you press the buttons, so a night feed is made fresh with one hand.

Jili all-in-one insulated baby bottle in sage — The All-in-One Baby Bottle in Sage from Jili is $45, keeps water warm for up to eight hours according to its listing, and comes with slow, medium and fast-flow nipples — one bottle that covers day trips from the newborn months on.

Baby Bottles (3–12 Months)

When your baby regularly drains a 5 oz bottle and still looks hungry, move up to an 8–9 oz bottle and, if feeds are dragging or your baby is sucking hard and getting frustrated, the next nipple level. Go by those cues, not the calendar: flow levels are not standardized between brands, so one maker's "medium" is another's "slow". Wide-neck bottles are easier to fill with powder and to reach into with a brush; narrow ones fit more cup holders and bottle warmers.

PopYum baby bottle starter set in blue with two 5 oz and two 9 oz bottles — The PopYum Starter Set is $43.99 for two 5 oz bottles with slow-flow nipples and two 9 oz bottles with medium-flow nipples — both sizes in one box, so you are not re-buying at three months.

Prefer glass? The Mason Bottle Original (from $15.99) turns a standard mason jar into a baby bottle with a silicone nipple, and the jar goes on to store snacks when bottles are behind you.

Sippy & Straw Cups (6+ Months)

A first cup usually arrives alongside first foods, around six months, with a little water at meals. Three designs cover it: a training cup with a free-flow rim teaches the open-cup motion with fewer spills; a straw cup with a weighted straw keeps working when tipped; and a soft silicone cup forgives being dropped and chewed. The Haakaa Jolly Hippo ($18.99) is the silicone option — listed for six months and up, with a lid and a soft straw. For timing and technique, see our bottle-to-cup transition guide.

b.box training cup in blueberry with a soft training lid, sized for a six-month-old learning to drink — The Training Cup in Blueberry from b.box is $9.60, the cheapest way to test whether your baby is ready for a cup before you buy a full set.

Toddler Water Bottles (12+ Months)

A toddler bottle lives in a bag, gets thrown from a stroller and sits in a hot car, so judge it on three things: a lid that seals when upside down, a handle or loop small hands can carry, and insulation if you want water to stay cold through an afternoon at the park. Stainless steel costs more up front and survives the drops; keep a pack of replacement straws or spouts on hand, because the mouthpiece is the part that wears out first.

Vaya Drynk 11.8 oz insulated stainless steel bottle in blue with loop lid — The Vaya Drynk 11.8 oz with Loop Lid is $79: vacuum-insulated stainless steel with a carry loop built into the lid, listed as keeping drinks cold for up to 18 hours.

Breast Pumps & Nursing Accessories

Match the pump to the job. A one-piece silicone pump works by gentle suction alone — no motor, no cord — and is what many nursing parents use to catch let-down from the other side during a feed. A wearable collector sits inside a bra for the same purpose when you need your hands. Neither replaces a double electric pump if you are pumping several times a day at work; HealthCare.gov says health insurance plans must cover the cost of a breast pump, so ask your insurer before you buy one. Flange inserts, cooler bags and storage bags fill in around whichever pump you use — our breastfeeding and pumping guide walks through the routine.

Haakaa Generation 3 silicone breast pump with detachable silicone bottle — The Haakaa Generation 3 Silicone Breast Pump (from $28.99) expresses straight into a detachable silicone bottle, in 6 oz and 9 oz sizes.

Bottle Accessories & Replacement Parts

Nipples are the consumable: check them before each feed and replace any that are cracked, sticky, thinning or discolored, and always buy the replacement made for your bottle, because threads and vents differ between brands. A brush with a separate small head reaches inside the nipple tip where milk film hides. Clip-on handles let an older baby hold the bottle unaided, and spare caps turn a bottle into storage.

Mushie silicone baby bottle brush in shifting sand, with a slim nipple brush stored in the handle — The Silicone Baby Bottle Brush from Mushie is $15.99 and stores a separate nipple brush inside the handle, so the small part you always lose stays with the big one.

Quick Verdict

Best newborn bottle for formula families: PopYum 5 oz Anti-Colic 3-Pack ($34.99) — slow-flow nipples, and powder and water stay separate until you press to mix.

Best value starter pack: PopYum Baby Bottle Starter Set ($43.99) — two 5 oz and two 9 oz bottles, so one purchase covers the first size change.

Best first cup: b.box Training Cup ($9.60) — a free-flow rim that teaches open-cup drinking, at a price that makes it a low-risk test.

Best soft straw cup: Haakaa Jolly Hippo ($18.99) — all-silicone, listed for six months and up.

Best insulated toddler bottle: Vaya Drynk 11.8 oz ($79) — stainless steel with a carry loop, for families who want one bottle to last years.

Best simple pump: Haakaa Generation 3 Silicone Breast Pump (from $28.99) — no motor, no cord, expresses into its own bottle.

Shop all baby bottles at EasyTot →

Frequently Asked Questions

What type of baby bottle is best for newborns?

A 4–5 oz bottle with a slow-flow (level 1) nipple is best for newborns, because early feeds are small and a slow nipple delivers milk at a pace a new baby can manage. A vented or anti-colic design is a reasonable extra. Buy a small set first: many babies reject the first nipple shape they are offered.

How many baby bottles do I need?

Plan on 8–10 bottles if your baby is fully bottle-fed and 3–6 if bottles are occasional or you are combination feeding. That covers a day of feeds between washes. Start with 5 oz bottles and add 8–9 oz bottles when your baby regularly finishes the small ones.

What does "anti-colic" mean, and do all babies need anti-colic bottles?

Anti-colic bottles use a vent, valve or angled shape to reduce the air a baby swallows with the milk. They are safe for any baby and are a sensible default, but they are not a treatment: a baby who is persistently unsettled after feeds should be seen by a pediatrician.

Are glass or plastic baby bottles better?

Glass does not stain, scratch or hold odors and lasts through several children, but it is heavier and can break. Plastic is light and cheap and needs replacing when it scratches or clouds. Silicone sits between the two — soft, light and durable. Many families use glass at home and plastic or silicone in the diaper bag.

How do I know which nipple flow is right for my baby?

Watch the feed, not the age on the box. A baby who sucks hard, collapses the nipple, gets frustrated or takes much longer than usual may need the next flow level; a baby who coughs, gulps or leaks milk from the corners of the mouth needs a slower one. Flow levels are not standardized, so follow the chart for your specific bottle brand.

When should I introduce a bottle to a breastfed baby?

If you are fully bottle-feeding, you can use bottles from birth. If you are breastfeeding and want to add a bottle, the usual advice is to wait until nursing is going smoothly; your pediatrician or a lactation consultant can tell you when that is for your baby.

When should I introduce a sippy cup?

Around six months, when solids begin, offer a small cup of water at meals. It is practice rather than hydration at first, so a few sips at the table is enough. A free-flow training cup or a straw cup are both good first choices.