In a nutshell

The Quantum2 is a comfy ride for newborns up to age 4. It’s perfect for city dwellers. But, more specifically, it’s ideal for tall parents as the handle comes up quite high and is quite thick, and, as it can be heavier to push, I would go as far as to say it’s perfect for dads

What we tested

  • Fold/unfolding
    A star rating of 4.0 out of 5.
  • Manoeuvrability
    A star rating of 2.5 out of 5.
  • Comfort for child
    A star rating of 4.5 out of 5.
  • Style
    A star rating of 3.5 out of 5.
  • Durability
    A star rating of 4.5 out of 5.
  • Worth the money
    A star rating of 4.0 out of 5.
Overall Rating
A star rating of 3.8 out of 5.


  • Good for dads, comfy seat, car-seat compatible, striking colour designs, large protective hood, big shopping basket with cover, sturdy, robust, mesh ventilation window, parent-facing, forward-facing, one-handed-fold, carry-strap, reflective strips


  • Handlebar is high and chunky, hard suspension, heavy to carry, need two hands to push, hard to get up a kerb, unwieldy when folded, heavy when folded

You may know the Diono brand from its useful baby and car accessories. Diono’s 3-in-1 multi-mode stroller Quantum 2 comes hot on the heels of the original Quantam (Diono’s first venture into the world of pushchairs boasting many features including a seat unit that converts into a carrycot).


The Quantum2 has been designed for simplicity, with parents’ needs in mind. The seat is reversible so you can have it parent-facing or outwards-facing. The carrycot (sold separately) is suitable for overnight sleeping and there’s an optional travel stand for it too. The Quantum2 handle comes up quite high so it’s great if you’re tall and the huge shopping basket has its own cover. A need-to-know is that even with all-round suspension (as Diono calls it), at times the Quantum2 can still be pretty heavy to push.

What age is the Diono Quantum 2 suitable for?

It’s suitable for newborns thanks to two luxuriously-padded inserts. Diono markets the Quantum 2 as up to 22kg (around 4 years old). But for many with that weight, it may make the Quantum 2 an impossible push.

Is the Diono Quantum 2 good value for money?

The Quantum2 is a 3-in-1 stroller (the original Quantum is a 6-in-1). The seat that converts into the carrycot has gone, the Quantum 2 bassinet comes separate and will set you back £250 in addition to £579 for the stroller, whereas its predecessor was £500 all in. The Quantum2 is marginally smaller in the seat, as is the hood but it still offers full coverage. The same-size basket now comes with a handy cover.

How easy is it to fold and unfold?

It’s ok once you’ve got the knack. It can be done with one hand, with, or without, the seat attached. The fold is a tri-action movement that revolves around the handlebar. Slide button, twist and raise handle, then push the handle down to fold down. It’s great as it auto-locks too and there’s a carry strap which is perfect for when you’re holding your little one’s hand at the same time.

It has a power-assisted unfold. Just unclip the safety lock and pull the handle upwards. The chassis opens out, flips out and locks into place.

How big is the Diono Quantum 2 when folded and unfolded?

The Quantum 2 can fold with the seat unit world facing but it’s 135cm long and not self-standing so not easily storable in a cupboard. Separating the seat and chassis is better for storage. The chassis has a flush, compact fold and is self-standing, which is good if you need to store it upright in a cupboard.


Does it fit in the boot of a regular car?

Yes, but only with seat and chassis as separates. With its seat unit attached it’s near impossible to get into your average car or even a big 4x4.

Is it car seat compatible?

Yes, the car seat adaptors work with the Maxi Cosi Cabriofix, Maxi Cosi Pebble, Maxi Cosi Pebble Plus, Besafe iZi Go, Cybex Aton 3s, Cybex Aton Q, Cybex Aton 4, Cybex Cloud Q, Cybex Aton 5, Cybex Aton Q iSize, Kiddy Evo Luna isize, Kiddy Evolution Pro2, Maxi Cosi Rock


How lightweight is the Quantum 2?

The Quantum 2 isn’t lightweight at all, it weighs in at 14kg.

How does it ride on different surfaces?

The Quantum 2 is robust but heavy so mounting kerbs is challenging. The suspension is a treat on smooth, flat areas but can be quite unyielding on any other surface. And as your child grows and gets heavier, pushing the Quantum 2 will become harder.

Was it easy to use on public transport?

The Quantum 2 isn’t for the commuter. There’s no doubt your little one will be comfortable, but you won’t. It’s heavy and cumbersome to carry when folded and would be completely impractical.


How did you find the wheels?

Diono says the Quantum 2’s quick-release wheels have integrated stainless-steel bearings which provide ‘an easy push and a smooth, bump free ride’ but that only applies to tiled shopping malls and smooth tarmac pavements. The full suspension wheels are rigid and rugged. The positives are they’re puncture-free and the front swivel wheels are lockable which marginally helps on uneven surfaces. If countryside walks are likely, an alternative option is to buy the air-filled rear tyres.

What do you think of the handlebar?

The Quantum 2 telescopic handlebar comes up quite high reaching the top of my stomach. The handle is thick in diameter so shorter parents with daintier hands may find it rather a struggle. For 6-footers and above the handle adjusts out to 6 positions making it comfortable to push.


How many recline positions are there?

The Quantum 2 has a multi-recline backrest which goes back to a near lie-flat position.

How comfortable does it seem?

Both the harness pad and cushion inserts are well-padded and can be removed as your baby grows. The seat height is quite elevated so saves you from having to bend down all the time. The seat has an adjustable footrest for added comfort. It also gets a thumbs up as the inserts and fabric components can be removed and machine washed at 30 degrees.


How did you find the Diono Quantum 2's hood?

The 3-tier canopy hood folds right down over the seat making it useful for giving shade and protection from unexpected showers. The mesh ventilation panel is a great feature for hot summer days and doubles up as a peep-through window.


Are the Quantum 2's brakes easy to use?

The Quantum 2 has a push on/push off brake system that’s simple to use. But it does need a firm step. And if, like me you hang a nappy bag on the end of your buggy you may find it harder to reach. But most importantly the brake works well.


How did you find the basket?

It’s huge, Diono boasts that the Quantum2 basket has the space for a cabin sized luggage bag! I like the cover that comes with it that’s great for keeping items dry in wet weather. With the Quantum2 there’s no need for basket-envy. It’s up there with the likes of the Baby Jogger City Select, UppaBaby Vista and Silver Wayfarer baskets.


Is it easy to build the Diono Quantum 2?

It took just 10 minutes to get the Quantum 2 up and running. The seat unit is ready to go complete with the integrated shopping basket, only thing for you to do is to clip on the wheels and attach the hood.

What’s in the box?

1 x pushchair with canopy and basket
1 x raincover
1 x nesting seat liner
1x toddler insert
1 x bumper bar
1 x pair car seat adapters

What do you think about the colour choices?

The Quantum 2 is available in 6 colourways. With a mix of greys and blacks, 2 have a standout canopy hood with a distinctive mosaic design. I have the sunny Yellow Sulphur Linear which together with the Orange Facet model are real statement buggies.

Where can you buy the Diono Quantum 2?

It is available from Olivers BabyCare.

MadeForMums verdict:

The Quantum 2 has so many things going for it. For a mid-range price tag you get a lot for your money. The striking colours, the XL hood, the generous shopping basket, the roomy and comfy seat, the overnight carrycot (sold separately) and even the reflective strips are all reasons to fall in love with this pushchair. But the weight of 14kg and the heavy push, makes the Quantum 2 a buggy I personally couldn’t get on with. I would recommend swapping the rear tyres with the Diono air-filled versions for an extra £50. Then you just might have the perfect buggy.


MadeForMums product reviews are independent, honest and provide advice you can have confidence in. Sometimes, we earn revenue through affiliate (click-to-buy) links. However we never allow this to influence our coverage. Our reviews and articles are written by parents who are professional journalists, and we also include feedback from our parent community and industry experts.

Product Specifications

ModelQuantum 2
Suitable for
Child age (approx)From Birth
Child weightUp to 22kg
Dimensions & Weight
DimensionsH:110cm W:61cm L:94cm
Dimensions (folded)H:60cm W:32cm L:82cm
Travel system compatibleYes
Compatible car seats
  • Maxi Cosi Cabriofix, Pebble, Pebble Plus and Rock
  • BeSafe iZi Go
  • Cybex Aton 3s, Aton Q, Aton 4, Cloud Q, Aton 5, Aton Q iSize
  • Kiddy Evo Luna iSize, Evolution Pro2
Seat facing directionForward facing and parent facing
Front wheelsLockable swivel and wheel suspension
Tyre typePuncture free
Recline positionsMulti-position
  • One handed fold
  • Adjustable handlebar
  • Reversible seat
  • Leatherette bumper bar (can be replaced with snack tray)
  • Adjustable footrest
  • 5-point harness
  • Layered and removable cushions 
Accessories included
  • Rain cover
  • Nesting seat liner
  • Toddler insert
  • Bumper bar
  • Car seat adapters
Optional extras
  • Carrycot - £250
  • Cup holder - £8
  • Buggy hooks - £4
  • Buggy buddy - £9
  • Snack tray - £34.95