UPPAbaby Kona vs. Nuna MIXX Next (2026): Mid-Size City Stroller vs. Full-Size Flagship — Which Should You Buy?

If you're standing at the crossroads of two genuinely excellent strollers, you're not alone — the UPPAbaby Kona and the Nuna MIXX Next are two of the most-shopped single strollers at Cuddles & Carriages right now, and they land at a similar sweet spot for new families: premium build, reversible seat, from-birth readiness, and a travel-system path, without stepping all the way up to a single-to-double flagship.

They're also meaningfully different. The Kona is UPPAbaby's brand-new mid-size stroller — the lightest, most packable full-featured stroller the brand has made that isn't a true travel stroller. The MIXX Next is Nuna's plush, full-size everyday workhorse, built around an all-wheel suspension and the magnetic MagneTech buckle. This guide compares them the way a parent actually shops: price, daily push, newborn setup, fold and weight, buckle, and who each one is really for. Every spec and price below was checked against our live inventory.

UPPAbaby Kona vs. Nuna MIXX Next at a glance

Specs verified against manufacturer information and Cuddles & Carriages live pricing. Folded dimensions vary slightly by retailer listing; confirm on the product page if trunk fit is critical.

Price and what's in the box

The clearest practical difference is price. The UPPAbaby Kona is $649.99 and the Nuna MIXX Next is $900 — a $250 gap for two strollers that both include the frame and a full reversible toddler seat. Neither one includes a bassinet in the base price: the MIXX Next bassinet is sold separately, and the Kona relies on its deep-reclining seat (and optional UPPAbaby infant car seat) for the newborn stage.

That $250 buys you different things. With the MIXX Next you're paying for a heavier-duty, more cushioned full-size platform and Nuna's signature hardware. With the Kona you're getting UPPAbaby's flagship fabrics, fold engineering, and ride quality in a lighter, more compact package for noticeably less. If budget is the deciding factor, the Kona is the stronger value — and still unmistakably a premium stroller.

Everyday push and ride quality

Both strollers steer well one-handed and track straight on sidewalks, but they prioritize different things. The MIXX Next is built around comfort: it pairs front progressive suspension with a rear Free Flex system so it soaks up cracked sidewalks, cobblestones, and curb drops with a genuinely plush, settled feel. It's the one to pick if your daily routes are bumpy or if you simply want the smoothest ride for a napping baby.

The Kona also has all-wheel suspension and rolls beautifully for its class, but its personality is agility. It's lighter and more maneuverable, which makes it feel nimble in tight shops, elevators, and crowded sidewalks. It isn't a jogging or heavy all-terrain stroller — for that, UPPAbaby's own Ridge V2 is the right tool — but for everyday urban and suburban use the Kona is confident and easy to drive.

From birth: newborn setups and travel systems

Good news: both strollers are ready for a newborn without buying anything extra, because each toddler seat reclines deep enough for the earliest days. The MIXX Next seat lies fully flat; the Kona seat reclines to a near-flat newborn position. Many parents start here and never buy a bassinet.

If you want the infant car seat "click-and-go" convenience that makes the first year easier, here's how each builds a travel system:

• Kona travel system: the UPPAbaby Aria V2 ($399.99) and the UPPAbaby Mesa V3 infant car seat attach directly to the Kona frame — no adapters required. The Aria V2 is UPPAbaby's lightest infant seat, which keeps the whole system travel-friendly. Browse all options in Car Seats + Accessories.
• MIXX Next travel system: Nuna's PIPA series seats snap on with the built-in Secure Snap — no adapters needed. The easiest path is our bundled Nuna MIXX Next + PIPA RX Travel System ($1,450), or add the PIPA RX + RELX Base ($550) to a stroller you already have.

Both approaches are excellent; the deciding factor is usually which brand's infant car seat you prefer. If you already own (or love) a Nuna PIPA, the MIXX Next is the frictionless choice. If you're drawn to UPPAbaby's car seats, the Kona keeps everything in one ecosystem.

Fold, weight, and city life

This is where the Kona earns its "city stroller" billing. At roughly 22 lb, it's about six pounds lighter than the ~28.3 lb MIXX Next — a real difference when you're lifting a stroller up subway stairs, into a trunk, or over an apartment threshold every day. The Kona's one-hand, self-standing fold is compact and quick, which is exactly what you want in small spaces and for travel.

The MIXX Next also folds free-standing and, usefully, folds with the seat facing either direction — a nice touch that not every stroller offers. It's a tidy fold for a full-size stroller, but it's bigger and heavier than the Kona's. If you drive a larger vehicle and rarely carry the stroller far, this won't bother you; if you're constantly lifting and stowing, the Kona is the easier daily companion. One caveat worth knowing: some testers find the MIXX Next fold is a two-hand operation in practice because the releases sit up near the handlebar.

Storage favors the Kona too. Its oversized basket is rated to a generous 30 lb — among the largest in the mid-size class — while the MIXX Next uses a smart two-compartment basket with a hidden zip pocket that's handy but more modest in volume.

The buckle: Nuna's MagneTech is the quiet game-changer

If you've ever wrestled a wiggly toddler into a harness, the MIXX Next's MagneTech buckle is a feature you'll appreciate every single day. The magnetic buckle self-locates and draws the harness tongues into place, so you can secure your child with one hand and far less fumbling. It's the kind of small daily convenience that parents consistently call out as a reason they'd buy Nuna again.

The Kona uses a conventional, reliable 5-point harness. It's perfectly good — most strollers on the market use one — but it doesn't have the near-magical ease of the MagneTech. If buckling convenience is high on your list (especially for a second-time parent who already knows the toddler-wrangling struggle), score one for the MIXX Next.

Decision rules: which one should you buy?

Cut through the specs with these clear rules:

• Choose the UPPAbaby Kona if… you live in an apartment or city, travel often, have a smaller car, want the lightest premium stroller to lift daily, want the biggest basket, or simply want flagship UPPAbaby quality at the best price ($649.99).
• Choose the Nuna MIXX Next if… you want the plushest, most cushioned ride, you value the one-handed MagneTech buckle, you want a true full-flat seat from day one, or you're already in the Nuna/PIPA ecosystem and want a seamless travel system.
• Get the Kona for a travel-first family: lighter lift + compact fold + adapter-free UPPAbaby car seats make it the better flyer and road-tripper. See our flying-with-a-baby gear guide.
• Get the MIXX Next for a comfort-first family: bumpy routes, long walks, and nap-on-the-go days reward its suspension and lie-flat seat.
• Think you might need a second seat later? Neither of these converts to a double. Step up to the single-to-double UPPAbaby Vista V3 ($999.99) instead — compare the full line in our Which UPPAbaby stroller should you buy? guide.

How each fits its brand's lineup

Context helps if you're cross-shopping within a brand. The Kona slots below UPPAbaby's full-size Cruz V3 ($899.99) and the single-to-double Vista V3 — it's the lighter, more affordable, more packable option. If you want the Kona specifically versus its UPPAbaby siblings, read Cruz V3 vs. Kona, Vista V3 vs. Kona, or our standalone UPPAbaby Kona guide.

On the Nuna side, the MIXX Next is the brand's plush full-size single. If you want it lighter, the Nuna TRIV LX is a more compact alternative; to see how the MIXX Next stacks up across Nuna's range, see our MIXX Next review and Which Nuna stroller should you buy? Prefer a head-to-head with UPPAbaby's full-size single? Read Cruz V3 vs. MIXX Next. You can also browse everything in Strollers + Wagons.

Frequently asked questions

Is the UPPAbaby Kona or Nuna MIXX Next better?

Neither is universally "better" — they're built for different priorities. The UPPAbaby Kona ($649.99) is lighter (~22 lb), more compact, and a better value, making it ideal for city living, travel, and smaller cars. The Nuna MIXX Next ($900) has a more cushioned all-wheel suspension ride, a full lie-flat seat, and the one-handed MagneTech magnetic buckle, making it the pick for maximum everyday comfort and convenience.

Can both strollers be used from birth?

Yes. Both the Kona and the MIXX Next have a deep-reclining, reversible seat that works for newborns without any extra accessory — the MIXX Next seat lies fully flat and the Kona reclines to a near-flat newborn position. You can also add an infant car seat to either for click-and-go convenience, or (on the MIXX Next) buy the matching bassinet separately.

How much do the UPPAbaby Kona and Nuna MIXX Next weigh?

The UPPAbaby Kona weighs about 22 lb (a 14.2 lb frame plus an 8.1 lb seat). The Nuna MIXX Next weighs about 28.3 lb. That roughly six-pound difference is noticeable if you lift and stow your stroller frequently.

Which infant car seats work with each stroller?

The UPPAbaby Kona accepts the UPPAbaby Aria V2 and Mesa V3 infant car seats, which attach directly to the frame with no adapters. The Nuna MIXX Next accepts Nuna PIPA series car seats via its built-in Secure Snap, also with no adapters. Adapters for other brands are sold separately in each case — always confirm your exact car seat model before buying.

Do either of these strollers convert to a double?

No. Both the Kona and the MIXX Next are single strollers only. If you expect a second child and want one stroller to grow with your family, choose a single-to-double like the UPPAbaby Vista V3 instead.

Is the Nuna MIXX Next worth the extra $250 over the Kona?

It depends on what you value. The extra money buys a plusher, more cushioned full-size ride and the standout MagneTech magnetic buckle. If you prioritize ride comfort and daily buckling ease, it's worth it. If you prioritize a lighter lift, a more compact fold, a huge storage basket, and overall value, the Kona delivers flagship quality for less.

Which stroller is better for travel and apartments?

The UPPAbaby Kona. At ~22 lb with a compact, self-standing one-hand fold, it's easier to carry up stairs, fit in small trunks, and pack for trips than the larger, heavier MIXX Next.