Review · Single-to-double stroller
Nuna DEMI next Review: A Single-to-Double With a Rider Board Included?
Short answer: The Nuna DEMI next is worth it if you want an inline stroller that grows from one child to two. Nuna lists it at $1,000 with a rider board in the box. It weighs 26 lb before the insert, canopy and arm bar, and has a 22 lb basket. The sibling seat costs extra.
Our verdict
8.8out of 10
Excellent
Best for
- Parents expecting a second child within a couple of years
- Families with a toddler who wants to hop on and off
- Parents who use Nuna PIPA infant car seats
Skip if
- You want a seat that lies fully flat for a newborn
- You carry the stroller up stairs every day
- You need a compact fold for a small trunk
Pros
- Rider board rated to 50 lb is included in the $1,000 price
- The second seat fits in line on the same 24 in wide frame
- 22 lb basket, foam-filled tires and dual suspension
- Nuna PIPA car seats attach with the included ring adapter, per Strolleria
Cons
- 26 lb without the insert, canopy and arm bar, about 29.4 lb with them
- Folds to 23.5 x 24 x 35 in, bulky for small trunks
- Four recline positions but not fully flat, per Strolleria
$1,000List price, October 2026
See it at NunaPrices change often. Check the retailer before you buy.
The Nuna DEMI next is a single-to-double that keeps two children in a line rather than side by side, so the frame stays 24 in wide. It comes with something rivals charge for: a rider board for an older child, rated to 50 lb. Nuna cites more than 25 modes with the sibling seat, bassinet and car seats. Strolleria calls it a smooth ride and good value for growing families. The downsides are about 29.4 lb fully dressed, a bulky fold, and a seat Strolleria says is not fully flat.
Who is the Nuna DEMI next for?
The Nuna DEMI next is for families who want to buy one stroller for a first baby and keep it when a second arrives. It starts as a single, and Nuna says the DEMI next sibling seat connects to the frame in the top or lower position with no adapters. The rider board, included in the $1,000 price, gives an older child a place to stand. Nuna lists the stroller for children from birth to 50 lb. Strolleria calls it "the clear choice" for parents with two children or who plan to grow their family quickly. Because the seats sit one above the other, the frame stays 24 in wide, which helps on narrow sidewalks and in shops. If you plan on only one child, a lighter single such as the Nuna MIXX next folds smaller.
How does the DEMI next ride and steer?
Nuna gives the DEMI next its Custom dual suspension, foam-filled tires and wide front wheels that swivel or lock straight. Strolleria describes it as "a master of smooth riding motion". The rear wheels share a one-touch brake. The rider board has two swivel wheels of its own, so it follows the stroller through turns, and it flips up into the basket when nobody is riding. At 39.5 in long it is not short, and a loaded double will take more effort on hills. Open, Nuna lists it at 24 in wide, so it clears standard doorways in both single and double mode. Nuna does not market it for running or trails. For city sidewalks, suburbs and park paths, it is a comfortable push, and the single-width frame makes crowded places easier than with a side-by-side double.
- Maneuverability9.0 / 10
- WheelsFoam-filled tires, Custom dual suspension, wide swivel-lock front wheels
How big is the DEMI next when folded?
Nuna lists the Nuna DEMI next at 26 lb without the insert, canopy and arm bar, and says those add about 3.4 lb, so expect roughly 29.4 lb ready to ride. Folded, it measures 23.5 x 24 x 35 in. Nuna does not say whether that includes the seat. Strolleria lists a one-step standing fold, and the rider board folds with the stroller. It is not a small package, and Strolleria says the MIXX next folds more compactly. Plan on a roomy trunk, especially once you add the sibling seat, which Nuna lists at 10 lb. It is not carry-on size.
Is the DEMI next comfortable and safe?
The Nuna DEMI next seat has four recline positions plus an upright setting, according to Nuna. Strolleria notes it does not lie fully flat, unlike the MIXX next. A removable Merino wool insert comes in the box, the canopy is UPF 50+, and the quick-release harness switches between 3 and 5 points. Nuna lists use from birth to 50 lb. For a newborn, Strolleria points to the DEMI next bassinet or a Nuna PIPA infant car seat; the bassinet is sold separately. The sibling seat is rated from birth to 50 lb and up to 45 in, and faces either way. Nuna lists no ASTM or JPMA certification for this model.
How much storage does the DEMI next have?
Nuna rates the Nuna DEMI next basket at 22 lb, which Strolleria calls substantially larger than the MIXX next's 10 lb basket. That fits a diaper bag, a jacket and a few extras. In double mode, Nuna says the sibling seat can install in the lower basket area, so expect less room when two children ride. The rider board also flips into the basket when it is stowed. Nuna does not list a basket volume.
How does the DEMI next grow with your baby?
Scroll through the stages below; the 3D stroller changes as you go. Drag it to turn it.
1 · Seat, reclined
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01 · The early months
Seat, reclined
From birth per Nuna; four recline positions, not fully flat per Strolleria. Four recline positions plus an upright setting (Nuna)
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02 · Sitting up, through the toddler years
Seat, upright
The seat is rated to 50 lb, so most children can ride until they no longer need a stroller.
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03 · When a sibling arrives
Two children
Single-to-double with the DEMI next sibling seat (sold separately) in the top or lower position; rider board included; Nuna cites 25+ modes
How does the DEMI next become a double?
The Nuna DEMI next ships as a single with a rider board. To carry two seated children, add the DEMI next sibling seat, which Nuna says connects in the top or lower position on the frame with no adapters. It weighs 10 lb, faces forward or back, and is rated from birth to 50 lb and up to 45 in. Nuna's US page showed it out of stock with no price in October 2026. You can also pair the frame with a DEMI next bassinet or Nuna PIPA infant car seats, and Nuna sells a twin travel system with two PIPA urbn car seats for $1,750. In all, Nuna cites more than 25 modes. The rider board, rated to 50 lb, gives a walking toddler a place to stand.
Nuna DEMI next vs UPPAbaby Vista V3 vs Bugaboo Donkey 6
| Spec | Nuna DEMI next | UPPAbaby Vista V3 | Bugaboo Donkey 6 |
|---|---|---|---|
| Our rating | 8.8 | 9.1 | 8.9 |
| List price | $1,000 | $999.99 | $1,699 |
| Weight | 26 lb | 27.6 lb | 33.7 lb |
| Folded (L×W×H) | 23.5×24×35 in | 16.3×25.7×33.8 in | 22×24.2×35.4 in |
| Max child weight | Birth to 50 lb (Nuna); rider board holds up to 50 lb | 50 lb | 50 lb per seat; bassinet to 20 lb (Bugaboo) |
| Bassinet included | No | No | Yes |
| Seats two children | With add-on seat | With add-on seat | With add-on seat |
| Type | Single-to-double | Single-to-double | Single-to-double |
UPPAbaby Vista V3: UPPAbaby's single-to-double with a 30 lb basket, at $999.99. Bugaboo Donkey 6: Side by side instead of inline, with a bigger 33 lb basket, at $1,699.
How we rated the Nuna DEMI next
Six criteria, weighted by how much they shape everyday life. Read our methodology.
Weighted total8.8— Excellent
Nuna DEMI next full specifications
| Type | Single-to-double |
|---|---|
| Weight | 26 lb (without insert, canopy and arm bar, per Nuna; Nuna says these add about 3.4 lb) |
| Folded size (L×W×H) | 23.5×24×35 in (Nuna's figure; Nuna does not say whether the seat is attached) |
| Open size (L×W×H) | 39.5×24×49 in |
| Max child weight | Birth to 50 lb (Nuna); rider board holds up to 50 lb |
| From birth | 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 |
| Seat age | From birth per Nuna; four recline positions, not fully flat per Strolleria |
| Recline | Four recline positions plus an upright setting (Nuna) |
| Basket | Up to 22 lb |
| Fold | One-step standing fold per Strolleria; the rider board folds with the stroller |
| Wheels & suspension | Foam-filled tires, Custom dual suspension, wide swivel-lock front wheels |
| Car seat compatibility | Nuna PIPA series with the included ring adapter; one set of post adapters included (Strolleria) |
| Converts | Single-to-double with the DEMI next sibling seat (sold separately) in the top or lower position; rider board included; Nuna cites 25+ modes |
| Travel | Not airline carry-on size |
| In the box | Frame with seat, Rider board, Rain cover, Merino wool insert, Canopy (UPF 50+), Arm bar, Ring adapter for Nuna PIPA car seats, DEMI next sibling seat (sold separately), DEMI next bassinet (sold separately) |
| Safety | Nuna lists a UPF 50+ canopy and a quick-release 3- to 5-point harness; no ASTM, JPMA or product-specific GREENGUARD claim on the US page |
| List price | $1,000 (Nuna US list price for the DEMI next + rider board on nunababy.com's US strollers page, October 2026; the product page itself showed no amount) |
What to buy instead
UPPAbaby's single-to-double with a 30 lb basket, at $999.99.
UPPAbaby Vista V3
9.1 — Exceptional. 27.6 lb, folds to 16.3×25.7×33.8 in, $999.99.
Side by side instead of inline, with a bigger 33 lb basket, at $1,699.
Bugaboo Donkey 6
8.9 — Excellent. 33.7 lb, folds to 22×24.2×35.4 in, $1,699.
A lower-cost inline single-to-double.
Mockingbird Single-to-Double 3.0
8.6 — Excellent. 28 lb, folds to 34×26×18 in, $549.
Nuna DEMI next FAQ
Is the Nuna DEMI next worth it?
If you want one stroller for two children in a line, it is a strong choice. Nuna lists it at $1,000 with a rider board included. It has a 22 lb basket, dual suspension and a 50 lb seat limit. The trade-offs are weight, about 29.4 lb fully dressed, a bulky fold and the extra cost of a sibling seat.
Does the DEMI next come with a second seat?
No. It comes with one seat and a rider board. The DEMI next sibling seat is sold separately. Nuna lists it at 10 lb, rated from birth to 50 lb and 45 in, and it fits the top or lower position. Nuna's US page showed it out of stock, with no price, in October 2026.
Can a newborn ride in the DEMI next?
Nuna lists it from birth to 50 lb and includes a Merino wool insert. Strolleria says the seat has four recline positions but does not lie fully flat, and suggests a bassinet or infant car seat for newborns. Nuna PIPA car seats attach with the included ring adapter, and the DEMI next bassinet is sold separately.
How big is the DEMI next folded?
Nuna lists 23.5 x 24 x 35 in folded, and 26 lb without the insert, canopy and arm bar, which add about 3.4 lb. Strolleria says it has a one-step standing fold and that the rider board folds with it. It is not carry-on size, so plan on a roomy trunk.