Baby's first months
When can a baby sit in a stroller seat?
Short answer: Most babies are ready for an upright stroller seat at around 6 months, once they hold their head steady and can sit with a little support. Before that, use a bassinet, a seat your stroller's maker approves from birth in its flattest recline, or an infant car seat on the stroller. Always follow your stroller's manual.
Why do young babies need to lie flat?
Newborns can't hold up their heads. If a young baby is propped upright, their head can slump forward, which can make breathing harder. That's why strollers for young babies either lie flat (a bassinet or a fully reclined seat) or hold the baby in an infant car seat designed to support the head and neck.
Every stroller's manual states its own minimum age or minimum development stage for the seat. Follow it, even if your baby seems ready sooner.
What are the signs a baby is ready for an upright stroller seat?
The CDC's developmental milestones give a useful guide. By about 4 months, most babies hold their head steady without support when held. By about 6 months, most lean on their hands to support themselves when sitting. By about 9 months, most sit without support.
- Ready: holds their head steady for long stretches, sits with a little support, and pushes up strongly on their arms during tummy time.
- Not yet: their head still drops forward or sideways when propped up, or they slump down in a seat.
For most babies, that means moving to an upright seat at around 6 months. A semi-reclined position can work a little earlier if the maker allows it. Ask your pediatrician if your baby was born early or you're unsure.
What can a baby use before the stroller seat?
- A bassinet: the flattest, roomiest option for walks. The Bugaboo Fox 5 Renew includes one, with a 20 lb bassinet limit. Many other strollers sell one separately.
- A seat approved from birth: some seats recline fully flat and are approved for newborns, sometimes with an infant insert. The UPPAbaby Cruz V3 and Nuna MIXX Next are examples.
- An infant car seat on the stroller: handy for car trips and errands. Keep stretches short, because pediatricians advise against routine sleep in car seats outside the car. See what a travel system is.
- A newborn pack: some travel strollers, like the Stokke YOYO3, sell a separate newborn cocoon or pack for the first months.
What does each stroller allow?
This is how each maker describes newborn use and the seat, in its own words where possible. "From birth" ratings often depend on a full recline or an included insert, so read the manual for the details.
| Stroller | Newborn option | Seat use |
|---|---|---|
| Baby Jogger City Mini GT3 | Baby Jogger lists birth to 65 lb with a near-flat recline and an included car seat adapter; it does not clearly describe newborn use without an infant seat | Baby Jogger lists birth to 65 lb; the seat reclines near flat |
| Baby Jogger City Select 2 | Yes, with the deluxe pram ($279.99, sold separately) or an infant car seat and adapters (sold separately) | BabyGearLab lists the toddler seat from 6 months |
| Baby Jogger City Tour 2 | Yes, with a Baby Jogger infant car seat and adapters (sold separately) | Seat reclines near-flat; Baby Jogger lists the stroller from birth to 45 lb |
| Baby Jogger Summit X3 | Baby Jogger says from birth; a newborn rides in the pram or an infant car seat on adapters (both sold separately) | Baby Jogger says to consult your pediatrician before jogging with a baby under 6 months old |
| BOB Gear Alterrain Pro | With an infant car seat on adapters (sold separately); BOB Gear lists the stroller seat from 8 weeks for walking | From 8 weeks for walking; from 8 months for jogging or off-road, per BOB Gear |
| Bugaboo Butterfly 2 Plus | Yes, fully flat recline with a newborn foot cover; Bugaboo recommends a car seat for newborn comfort | Birth to about 48 months; car seat recommended for newborn comfort |
| Bugaboo Donkey 6 | Yes, with the included bassinet (to 20 lb) and PureBreeze mattress | Bugaboo gives an age range of 0 to 4 years; Strolleria says the seat reclines flat |
| Bugaboo Dragonfly Plus | Yes, with the included bassinet (to 20 lb); Bugaboo says the seat also lies flat | Bugaboo gives an age range of 0 to 4 years (seat lies flat) |
| Bugaboo Fox 5 Renew | Yes, with the bassinet (bassinet limit 20 lb) | Bugaboo lists the stroller from birth to about 4 years; no minimum seat age is published |
| Chicco Bravino Plus | Yes, Chicco says the Pramette seat reclines fully for a lie-flat carriage mode; Chicco KeyFit infant car seats also click in (sold separately) | Pramette mode for babies, toddler seat after; Chicco's age limits for each mode were not confirmed |
| Chicco Bravo LE ClearTex | Yes, in a Chicco infant car seat (sold separately); the toddler seat comes off to make a car seat frame | Around 6 months, once a baby can sit unassisted, per Babylist Q&A answers |
| Colugo The Compact Stroller+ | No; Colugo recommends it for babies 4 months and older | From 4 months |
| Cybex Balios S Lux | Yes, with the Cot S Lux or a CYBEX infant car seat (both sold separately); the seat unit is from 6 months | From 6 months (Cybex); near-flat recline |
| Cybex Gazelle S | Yes, with the Gazelle S Cot or an infant car seat (both sold separately) | From 3 months, in the most reclined position (Cybex) |
| Cybex Libelle (2026) | Only with a CYBEX infant car seat (sold separately); the seat unit is from 6 months and there is no cot option | From 6 months (Cybex) |
| Cybex Priam (New Generation) | Yes, with the Priam Fold Lux Carry Cot ($499.95, sold separately) or a CYBEX infant car seat; the seat unit is from 6 months | From 6 months (Cybex); near-flat recline |
| Doona+ Car Seat & Stroller | Yes, it is a rear-facing infant car seat for babies from 4 lb, with an infant insert and head support included | Until baby reaches 30 lb or 32 in tall, whichever comes first (Doona's US site); rear-facing only |
| Evenflo Pivot Xpand | Yes, with a LiteMax or SafeMax infant car seat (no adapter), or in the lay-flat carriage mode Evenflo lists | Evenflo's stroller page lists 6 months and up for the toddler seat; infant car seat or lay-flat mode before that |
| Joie Ginger DLX | Yes, in the built-in lie-flat pramette mode, or with a Joie infant car seat on the included adapters | From birth in pramette mode; sitting seat once the baby is ready to sit up |
| Mockingbird Single-to-Double 3.0 | Yes, with the Bassinet ($160), Infant Seat Insert or Car Seat Adapter ($50), all sold separately | From about 3 months in the toddler seat; from birth with an infant accessory |
| Nuna DEMI next | Nuna lists birth to 50 lb with an included Merino wool insert; Strolleria points newborns to the DEMI next bassinet (sold separately) or a Nuna PIPA infant car seat | From birth per Nuna; four recline positions, not fully flat per Strolleria |
| Nuna MIXX Next | Yes, the seat reclines flat from birth; a MIXX series bassinet with stand is sold separately | From birth (true-flat recline, 5 positions) |
| Nuna SWIV | With the SWIV & TRIV series bassinet (sold separately) or any Nuna PIPA infant car seat; Consumer Reports says the seat is not ideal for newborn naps | Not stated by Nuna; three recline positions including near-flat |
| Nuna TRVL | Rated from birth; Nuna says to use a PIPA series car seat until baby sits up unaided (usually around 6 months) | Once baby sits unaided (about 6 months) up to 50 lb; the seat reclines but does not lie fully flat |
| Stokke YOYO3 | Yes, with the newborn pack (sold as a bundle), for babies up to 19.8 lb (9 kg), or with a car seat on adapters | 6+ seat from about 6 months up to 48.5 lb (about 48 months) |
| Thule Urban Glide 3 | Yes, with the Thule bassinet ($299.95) or an infant car seat adapter, both sold separately | Stroller seat from about 6 months per BabyGearLab, up to 49 lb |
| UPPAbaby Cruz V3 | Yes, the reversible seat reclines flat with the included infant insert; a bassinet is sold separately | From birth (flat recline with infant insert) |
| UPPAbaby Minu Duo | Yes, both seats are rated from birth with a deep recline; one Aria or Mesa infant car seat fits with adapters (sold separately) | From birth |
| UPPAbaby Minu V3 | Yes, the seat lies flat for newborns, with a foot barrier and a 2-position crotch buckle | From birth |
| UPPAbaby Ridge V2 | Yes, with the UPPAbaby Bassinet or an Aria or Mesa infant car seat, using adapters (sold separately) | From 3 months; UPPAbaby says jogging only once the child can hold their head up unassisted, and to ask your physician |
| UPPAbaby Vista V2 | Yes, with the included bassinet (birth to 20 lb, or until baby can push up on hands and knees) | From 3 months; from birth with the Infant SnugSeat (sold separately) |
| UPPAbaby Vista V3 | Yes, with the Bassinet V3 or Infant SnugSeat (both sold separately), or an infant car seat | From about 3 months on its own; from birth with the bassinet or SnugSeat |
| Zoe Twin V3 | Yes, with the included infant cocoons in both seats, or an infant car seat in one seat with an adapter | Newborn-compatible with the included cocoon; 155 degree recline |
Can a baby sleep in a stroller?
Short naps on a walk are normal, but a stroller isn't a safe place for routine or unsupervised sleep. The American Academy of Pediatrics recommends moving a baby who falls asleep in a sitting device, including a stroller or car seat, to a firm, flat surface made for sleep as soon as you can. Stay with your baby whenever they sleep in the stroller, and keep the harness on.
When does a child outgrow a stroller seat?
Seats have both weight and height limits. Most of the strollers we cover are rated to about 50 lb, and the Baby Jogger City Mini GT3 goes up to 65 lb. Height limits matter too: once your child's head is above the seat back, or their shoulders are above the top harness slots, they've outgrown it. Our "how long will it last?" calculator estimates when that will be.
Strollers that work from birth
Stroller seat age FAQ
At what age can a baby sit in a stroller without a car seat?
It depends on the stroller. Some seats recline flat and are approved from birth. For an upright seat, most babies are ready at around 6 months, once they hold their head steady and sit with a little support. Your stroller's manual states its minimum age, so follow it.
Can a newborn use a stroller that reclines flat?
Yes, if the maker approves the seat from birth in its flattest position, sometimes with an included infant insert. The UPPAbaby Cruz V3 and Nuna MIXX next are examples. If the manual gives a minimum age, such as 3 or 6 months, use a bassinet or infant car seat until then.
Do I need a bassinet for my stroller?
No, but it's the roomiest option for long walks in the first months. Alternatives are a seat approved from birth, an infant car seat clicked onto the stroller, or a newborn pack. A bassinet is only used for the first few months, until your baby reaches its weight limit or can push up, so weigh its cost against how much you'll walk.
Can my baby face forward in the stroller?
Yes, once they're old enough for the seat. Many parents keep young babies facing them so they can watch them, then turn the seat forward as the baby gets curious. Many full-size strollers, like the UPPAbaby Cruz V3, have a reversible seat; most travel strollers face forward only.