Nuna MIXX next vs Nuna TRIV next
Same maker, same Pipa ring adapter in the box, and $300 apart: the MIXX next is $900 and the TRIV next $600. The bigger difference is 28.3 lb against 18.4, and Nuna's TRIV figure leaves out about 2.6 lb of insert, arm bar and canopy. The MIXX has a reversible seat with five recline positions that lies flat from birth, with a bassinet sold separately. The TRIV has three recline positions, and owners report the US seat does not lie flat, so Nuna recommends a Pipa seat until about 6 months. The TRIV folds with one hand to 24 x 22.5 x 15 inches and stands; the MIXX folds to 27.5 x 23.6 x 19 and stands. Owners say the MIXX wheels keep babies asleep over gravel and snow, but that it fills a midsize sedan trunk. Nearly 10 lb is a lot to lift up stairs every day, and the MIXX has to earn it with its flat seat in the first year.
Folded, the Nuna TRIV next makes a 4.69 cu ft box to the Nuna MIXX next's 7.14 cu ft. Neither fits a 22 x 14 x 9 in carry-on sizer: the Nuna MIXX next misses by 10 in and the Nuna TRIV next by 8.5 in. The Nuna TRIV next is 9.9 lb lighter by its maker's figure (18.4 lb to 28.3 lb). The Nuna MIXX next is newborn-ready as sold; the Nuna TRIV next needs a bassinet, insert or infant car seat for the first months.

Nuna
Nuna MIXX next
~$900
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.
Best for: Nuna car-seat owners moving up to a reversible full-size seat

Nuna
Nuna TRIV next
~$600
This reversible-seat city stroller folds flat with one hand in either seat direction, keeping its included PIPA ring adapter attached through the fold.
Best for: City families pairing it with a PIPA seat for the first months
| Specification | Nuna MIXX next | Nuna TRIV next |
|---|---|---|
| Approx. price | ~$900 | ~$600 |
| Type | Full-size | Full-size |
| Weight | 28.3 lb | 18.4 lb |
| Newborn lift weight | 28.3 lb (seat is from birth) | not published |
| Newborn option | Seat is rated from birth | Newborns ride in an infant car seat |
| Folded size | 27.5 x 23.6 x 19 in | 24 x 22.5 x 15 in |
| Carry-on check | Over by 10 in (3 sides over) | Over by 8.5 in (3 sides over) |
| Folded box | 7.14 cu ft | 4.69 cu ft |
| Unfolded size | 32.7 x 23.6 x 45.3 in | 33.5 x 22.5 x 42.25 in |
| Fold | Stands when folded | One-hand fold, stands when folded |
| Max child weight | 50 lb | 50 lb |
| Recline | 5 positions (Five-position, one-hand recline to true-flat) | 3 positions (Three-position, one-hand recline) |
| Car seats | 1 seat family: 1 with an adapter | 1 seat family: 1 with an adapter |
Nuna MIXX next: 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
Nuna TRIV next: what it gives up
- Nuna recommends a car seat rather than the stroller seat until about 6 months
- Only three recline positions
- Published weight excludes the insert, arm bar and canopy (about 2.6 lb more)
- Owners find the seat swallows small babies, with the harness straps reaching their faces
Full pages: Nuna MIXX next · Nuna TRIV next