Nuna MIXX next

Nuna's full-size seat flips to face either way and still folds in one piece, with a fold-away rear axle that shortens the package. It reclines in five steps to fully flat, and the ring adapter for PIPA car seats is in the box, but at 28.3 lb before the arm bar and insert it is the second-heaviest Nuna single here, after the DEMI icon.

Weight: 28.3 lb; maker's figure
Folded size: 27.5 x 23.6 x 19 in; a 7.14 cu ft box
Max child weight: 50 lb; in the seat

Best for: Nuna car-seat owners moving up to a reversible full-size seat

~$900list price at the last catalog update

What it does well

Ring adapter for every PIPA seat is included
Reclines in five steps all the way flat, usable from birth
Folds in one piece whichever way the seat faces, though owners find the package much smaller with the seat forward-facing
Rolls like a trolley case once folded
Owners say the suspension keeps babies asleep on gravel and cobblestones

What it gives up

28.3 lb before the arm bar and insert are added
Folded package is 27.5 inches long
Owners report older babies sliding down the shallow seat toward the crotch buckle

What owners say

Parents buy the MIXX next for the ride. The suspension and large wheels soak up gravel, cobblestones and rough sidewalks well enough that babies sleep through them, tall parents find the handlebar comfortable, and many used the flat-reclining seat from the start instead of paying for a bassinet.

Size follows it everywhere: it takes up most of a sedan trunk, it is heavy to haul up stairs or onto a train, and a lot of families end up buying a lighter stroller for errands. The fold divides opinion: some find it easy, others find it a two-handed job, and the package is noticeably smaller with the seat facing forward. The other recurring complaint arrives later, when an older baby starts sliding down the shallow seat toward the buckle. A smaller annoyance is that snack trays and cup holders are extras.

Ideally its owner drives, has room in the car, walks on uneven ground and is often tall. Shoppers comparing it with an UPPAbaby Vista or Cruz split fairly evenly: MIXX buyers point to the lay-flat seat, the suspension and the lower price, while those who went UPPAbaby cite a better toddler seat and more configurations. Apartment dwellers with stairs, transit users and anyone with a small trunk tend to regret the bulk.

What owners like

The big wheels and suspension are what people rave about: babies stay asleep over gravel, cobblestones, snow and broken city pavement.
Plenty of parents used the reclined seat from birth and skipped the bassinet altogether, though a few say it never looks completely flat.
Tall couples like the handlebar height, including one with a 6'6" partner, and it tipped some of them toward the MIXX in store.

Common complaints

It is a lot of stroller. Folded, it fills a midsize sedan trunk and is a chore on trains, in restaurants and up walk-up stairs, so many households add a lighter second stroller. A minority find it easy enough to lift.
Once babies pass about 7 months, several parents find the seat too shallow: the child slides down onto the crotch buckle, the footrest runs out and even the most upright setting is still reclined. A few with big toddlers say theirs fit fine.
Opinions on the fold are split. Some fold it easily even with sore hands, others call it two-handed and fiddly, and it only gets properly compact with the seat facing forward.
The PIPA ring adapter ships with the stroller rather than the car seat, so second-hand buyers often end up without one and face backorders or marked-up resale prices.
No snack tray or parent cup holder comes in the box, and the accessory range is thin.

Questions owners ask about the Nuna MIXX next

Is the MIXX next comfortable once a baby becomes a toddler?

It is a recurring complaint. Several parents of 7- to 15-month-olds say their child keeps sliding down until the crotch buckle digs in, the footrest is too short and the most upright position is still leaned back. Parents of a few very big toddlers say theirs still fit comfortably, so it is worth trying the seat with your own child.

Do you need the MIXX bassinet, or is the lay-flat seat enough?

Many parents used the fully reclined seat from birth and never bought the bassinet. Others point out that it does not look completely flat, it is not a rated sleep space, and its canopy covers less than the bassinet's.

What if a used MIXX next comes without the car seat adapter?

The PIPA ring adapter comes with the stroller, not the car seat, so it is often missing from second-hand sales. Buyers report Nuna quoting backorders of 30 to 60 days and resellers asking well above the original price. The TRIV ring does not fit the MIXX next, but one parent found that post-style adapters do.

How much of a sedan trunk does the MIXX next fill?

It fills a midsize sedan trunk, and one family could not fit the car seat base and the stroller in a Mazda 6 together. One parent found it folds much smaller with the seat forward-facing, which got it into their sedan.

Does the MIXX next handlebar suit a 6'6" parent?

Yes. Tall couples, including one with a 6'6" partner, say the handlebar height works well for them, and it is one of the reasons tall partners preferred it in store.

What you lift

28.3 lb as Nuna weighs it.

Source: Nuna: "Weight: 28.3 lbs (without arm bar and insert - arm bar and insert approx. 0.7 lb)"

The first months: Seat is rated from birth. True-flat recline from birth; a MIXX series bassinet is sold separately.

Why makers’ weights don’t always compare

Infant car seats

Seat family	How it attaches	Models the maker names
Nuna PIPA series	Adapter: MIXX series ring adapter (included)	All PIPA series infant car seats

Source: Nuna MIXX next page: "Pairs perfectly with all Nuna PIPA™ series infant car seats"; "Ring adapter is included"

The whole car-seat matrix

Specifications

Approx. price: ~$900
Type: Full-size
Weight: 28.3 lb
Newborn lift weight: 28.3 lb (seat is from birth)
Newborn option: Seat is rated from birth
Folded size: 27.5 x 23.6 x 19 in
Carry-on check: Over by 10 in (3 sides over)
Folded box: 7.14 cu ft
Unfolded size: 32.7 x 23.6 x 45.3 in
Fold: Stands when folded; Nuna: "A one-piece fuss-free, compact fold no matter which way the seat is facing"; "Stands when folded"
Max child weight: 50 lb; Nuna: from birth to 50 lb
Recline: 5 positions (Five-position, one-hand recline to true-flat)
Car seats: 1 seat family: 1 with an adapter