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YOYO³ vs Butterfly 2 vs Aer² (UK 2026): Which Travel Stroller Wins?

By BabyTravel UK Editorial Team · Last updated July 2026

If you're deciding between YOYO, Butterfly, and Aer, this is the fast clarity guide. We compare what actually changes day-to-day use: lift feel, fold speed, and city/airport practicality.

Quick verdict

  • 📐 Smallest fold: Stokke YOYO³ — 52 × 44 × 18cm, the most compact when folded, huge accessories range
  • 🛒 Best basket / daily use: Bugaboo Butterfly 2 — 8kg basket, best recline, superior comfort for longer outings
  • Fastest fold / tall parents: Joolz Aer² — genuine one-second fold, integrated shoulder strap and 105.5cm handlebar at 6.5kg
  • 💷 All three cost around £420–£460. The Butterfly has the deepest recline; the Aer² is lightest; the YOYO³ has the widest accessories ecosystem.

Introduction to Travel Strollers

Travel strollers have become an essential companion for parents who want to explore the world with their babies without sacrificing convenience or comfort. Designed to be lightweight and compact, these strollers are perfect for navigating airports, hopping on public transport, or weaving through busy city streets. When choosing a travel stroller, parents should pay close attention to the folded size, overall weight, and how easily the stroller folds—especially if you’ll be carrying it through airports or storing it in an overhead bin.


The Bugaboo Butterfly 2, Stokke YOYO³, and Joolz Aer² are standout options in the world of travel strollers, each offering unique features to suit different lifestyles. Whether you need a stroller that works seamlessly with car seat adapters, prioritise a quick folding mechanism, or want a model with a wide range of accessories like buggy boards and bumper bars, there’s something for every family. In this comparison, we’ll break down how each stroller performs in real-life situations, from folding and carrying to maneuverability and newborn compatibility, helping parents find the perfect fit for their travel needs.

Head-to-Head: Stokke YOYO³ vs Bugaboo Butterfly 2 vs Joolz Aer²

If you’re in the market for a premium travel stroller, you’ve inevitably narrowed your search down to these three titans: the original Stokke YOYO³, the super-practical Bugaboo Butterfly 2, and the lightning-fast Joolz Aer². All three are cabin-friendly, stylish, beautifully designed, and command a premium price tag. But which one is right for you? It all comes down to the details and the difference in features, comfort, and accessories compared to other strollers on the market, including the wider Bugaboo stroller lineup, Bugaboo's accessories, and the Stokke Yoyo. Notably, the Butterfly was the only stroller in Bugaboo's range that, for a time, lacked a compatible buggy board, setting it apart from other Bugaboo models.


We’ve compared them on the features that matter most to travelling parents: the fold, folding mechanisms, portability, comfort, storage, and of course, newborn suitability. The Stokke YOYO³ is the lightest by specification, while the Joolz Aer² is designed for especially easy shoulder carrying, making it easier to carry, especially when traveling with airlines. All three strollers are suitable for travel with airlines, and their folded stroller size is designed to fit in most plane overhead bins, meeting common airline cabin requirements. Let’s find your perfect match.


Note: All three strollers are designed to be cabin-friendly and their folded stroller size is compatible with most plane overhead bins, making them ideal for travel with airlines. The folding mechanisms differ: the YOYO³ requires two hands to fold, while the Bugaboo Butterfly 2 and Joolz Aer² can be folded with one hand, making them more convenient when you need to carry your child or luggage at the same time. The YOYO³ is the lightest on the scale, while the Aer²'s shoulder strap makes repeated carrying particularly convenient.

Feature Stokke YOYO³ Bugaboo Butterfly 2 Joolz Aer²
Weight 6.2 kg 7.3 kg 6.5 kg
Folded Dimensions 52 x 44 x 18 cm 44.8 x 24.5 x 55.5 cm 53 x 44 x 23.5 cm
Age Range From birth with bassinet From birth with lie-flat seat From birth with cot or newborn setup
Basket Capacity 10 kg 8 kg 8 kg
Unique Selling Point Huge range of accessories Massive, accessible basket Fastest one-second fold
Price Guide Check current listing Check current listing Check bundle contents and current price

The Fold: Speed vs. Size

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This is where the biggest differences lie. The Joolz Aer² is the undisputed champion of speed with its genuine one-hand, one-second fold. Its folding mechanism is smooth and reliable, making it easy to operate even when holding your child. The Bugaboo Butterfly 2 also has a fantastic, easy one-hand fold that collapses in a single piece. The Stokke YOYO³ requires a two-step, two-hand process which, while still quick, is the most complex of the three. However, it folds down into the smallest package, making it the king of compact dimensions.



When folded, all three strollers are compact, but the folded stroller of the YOYO³ is especially notable for fitting in most airline overhead bins. Carrying the folded stroller is made easier thanks to features like the carry strap and shoulder strap, which help with transport and prevent the stroller from being awkward to carry. The YOYO³ is slightly lighter on the scale, while the Aer² is particularly convenient to carry because of its integrated shoulder strap.

Stokke YOYO³ compact travel stroller folded

Stokke YOYO³

Folded: 52 × 44 × 18cm  |  Weight: 6.2kg  |  Price: around £450–£530

The YOYO³ folds the smallest of the three and is the only one consistently accepted in most aircraft overhead lockers as cabin baggage. The accessories range is unmatched — from colour packs to newborn bassinets. The basket is now rated to 10kg, and the fold requires two hands, but the result is the most compact package.

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Bugaboo Butterfly 2 compact stroller with large basket

Bugaboo Butterfly 2

Folded: 44.8 × 24.5 × 55.5cm  |  Weight: 7.3kg  |  Price: around £400–£475

The Butterfly 2 has an accessible 8kg basket and the deepest recline of the three — the best option if storage and nap comfort are priorities. The one-hand fold collapses it in a single piece. It's the heaviest at 7.3kg and the fold is slightly larger than the YOYO³, but the premium build and basket capacity justify it for many families.

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Joolz Aer² lightweight stroller in sandy taupe

Joolz Aer²

Folded: 53 × 44 × 23.5cm  |  Weight: 6.5kg  |  Price: around £440–£500

The fastest to fold at 6.5kg, with an integrated shoulder strap — a genuinely one-second one-hand mechanism. The 105.5cm handlebar and curved rear axle make it the standout pick for tall parents. The patented ergonomic seat offers excellent support, though the recline is slightly less deep than the Butterfly. Great for public transport and busy days out.

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Storage Space: No Contest

If you're an over-packer, the choice is simple: the Bugaboo Butterfly 2 wins by a landslide. Its 8kg basket is enormous for a travel stroller and can be accessed from both the front and back. It easily fits a large changing backpack with room to spare. YOYO³ now has a 10kg published basket limit, while Butterfly 2 and Aer² are both rated to 8kg; access and basket shape still differ in daily use.

Comfort and Naps

All three offer a reclining feature, but the Bugaboo Butterfly 2 has the deepest and most comfortable recline, allowing the seat to be fully reclined, which is especially beneficial for kids who need to nap on the go. Its large pop-out leg rest further enhances comfort, making it the best for napping toddlers. The Joolz Aer² has a unique, patented ergonomic seat that provides excellent support for kids as they sit, including older children, though its three-position recline is less flat than the Butterfly 2 seat. The YOYO³ offers a decent recline but lacks an integrated leg rest, which is available as an optional extra, and the seat provides less space, which may affect comfort for older or taller kids.



For comfort, all three strollers feature adjustable straps, including shoulder straps, to ensure a secure and comfortable fit for kids of various sizes. The harness strap systems are easy to adjust, though some may find the straps on certain models a bit short for taller children. The fabric quality on each stroller is durable and soft, contributing to overall comfort and long-term use.

Maneuverability and Steering

When it comes to maneuverability, all three strollers—Bugaboo Butterfly 2, Stokke YOYO³, and Joolz Aer²—are designed to make life easier for parents on the move. The Joolz Aer² stands out for its incredibly responsive steering, allowing you to navigate tight corners and crowded pavements with just one hand, even when the stroller is fully loaded. Its compact frame and high-quality wheels make it a favourite for city dwellers and frequent travellers alike.


The Stokke YOYO³ is also renowned for its smooth ride and compact design, making it easy to push through narrow aisles or busy streets. Its lightweight frame and agile wheels mean you can steer with minimal effort, and the one hand fold mechanism adds to its convenience when you need to quickly collapse the stroller.


The Bugaboo Butterfly 2, while slightly larger in frame, doesn’t compromise on maneuverability. Thanks to its premium wheels and advanced suspension system, the Butterfly glides effortlessly over different terrains, from cobblestones to smooth pavements. The one hand fold feature is a bonus for parents who need to juggle bags, babies, and strollers all at once. Overall, each stroller offers excellent maneuverability, but the Joolz Aer²’s steering is particularly impressive for parents who value effortless handling.

Sibling Compatibility

For families with more than one child, having a travel stroller that can accommodate older siblings is a game-changer. All three models—the Bugaboo Butterfly 2, Stokke YOYO³, and Joolz Aer²—offer buggy board accessories, allowing older siblings to hop on and ride along when their legs get tired.


The Stokke YOYO³ and Joolz Aer² buggy boards are especially popular for their user-friendly design and comfort, making it easy for older siblings to join the ride without fuss. The boards attach securely and provide a stable platform, so your older child can stand comfortably while you push the stroller.


The Bugaboo Butterfly 2 also offers a buggy board, but some parents have found its design less intuitive compared to the competition. While it still provides a practical solution for families with multiple children, it may not be as comfortable or easy to use as the options from Stokke YOYO³ and Joolz Aer². When choosing a travel stroller, it’s worth considering how often your older child will want to ride along and selecting a buggy board that best fits your family’s needs.

Newborn Compatibility and Safety

Ensuring your travel stroller is suitable for newborns is a top priority for many parents. The Stokke YOYO³ and Joolz Aer² both offer dedicated bassinet options, allowing your baby to lie flat in a safe and supportive environment from birth. These bassinets are designed to provide maximum comfort and security, making them ideal for newborns on the go.


The Bugaboo Butterfly 2 now has a lie-flat seat suitable from birth and can also be paired with the optional baby nest for additional newborn support. Compatible car-seat adapters remain useful for short transfers. All three strollers are compatible with a range of car seats, giving parents flexibility when it comes to travel and everyday use.


Safety is paramount, and each stroller meets or exceeds international safety standards for car seat compatibility and overall stability. When selecting a travel stroller, parents should consider factors such as weight capacity, folding mechanism, and how securely the car seat or bassinet attaches to the frame. By choosing a stroller that fits your newborn’s needs and prioritises safety, you can enjoy peace of mind and a smoother travel experience from day one.

YOYO³ recall check: some early YOYO³ prams were recalled because of a parking-brake issue. The affected UK serial range is 142AA followed by a number below 0062239. Check the serial number on the underside when buying used or old stock, and use the Stokke recall checker if the pushchair may be affected.

The Final Verdict: Which One Should You Buy?

There is no single “best” stroller—the right choice depends entirely on your priorities and which features you prefer:

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FAQ

Which of the three is the lightest?

The Stokke YOYO³ is the lightest at 6.2kg, followed by the Joolz Aer² at 6.5kg and the Bugaboo Butterfly 2 at 7.3kg. The weight difference is noticeable when you're carrying them up stairs or lifting into overhead lockers. For parents who regularly carry their stroller rather than push it, the 1.3kg difference between the Aer² and Butterfly is worth factoring in.

Which has the smallest fold — YOYO³, Butterfly or Aer²?

The Stokke YOYO³ has the smallest folded dimensions at 52 x 44 x 18cm, making it the thinnest of the three when folded. The Bugaboo Butterfly 2 (54 x 45 x 23cm) and Joolz Aer² (53.5 x 45 x 21.5cm) are very similar to each other and slightly larger. All three are designed to fit in aircraft overhead lockers, though airline tolerances vary — always check your specific carrier's policy.

Which is best for newborns?

Butterfly 2 has a lie-flat main seat suitable from birth, with an optional baby nest for extra support. YOYO³ uses its 0+ newborn pack or bassinet before the 6+ seat, while Aer² offers a cot or compatible newborn setup. Check exactly which components are included because the YOYO³ and Aer² newborn options are normally separate purchases.

Can all three fit in an aircraft overhead locker?

All three are marketed as cabin-friendly and designed to meet common airline size requirements. In practice, acceptance varies by airline and individual cabin crew. The YOYO³ is generally the most consistently accepted due to its slimmer fold. That said, many families gate-check all three rather than bringing them into the cabin. Always check your specific airline's latest pushchair policy before travelling — see our flying with a baby and stroller guide.

Which has the best storage basket?

YOYO³ has the highest published basket limit at 10kg. Butterfly 2 and Aer² are both rated to 8kg. Butterfly 2 remains especially easy to load from the front and rear, so basket access and shape may matter more than the number if you carry a large changing backpack.

Which is best for tall parents?

The Joolz Aer² is the standout for tall parents, with a fixed handlebar at 105.5cm and a cleverly designed curved rear axle that gives excellent stride clearance. The Bugaboo Butterfly 2 has a handlebar at around 103–104cm, which also works for most tall parents. The YOYO³ has a lower handle (around 99cm) and tighter stride clearance, making it less comfortable for parents over 6ft. For a detailed comparison, see our best strollers for tall parents guide.

Is the Bugaboo Butterfly 2 worth the extra weight?

That depends on what you value. The Butterfly's 7.3kg weight (compared to 6.0–6.2kg for the others) comes with a clear payoff: a noticeably larger basket, the deepest recline of the three, and a premium feel to the chassis and fabrics. For parents who prioritise storage and nap comfort over minimising carry weight, the extra 1–1.3kg is a reasonable trade. For parents who regularly carry the stroller up stairs or on public transport, the lighter Aer² or YOYO³ will feel meaningfully easier over time.

Which is the best choice for everyday city use, not just travel?

The Bugaboo Butterfly 2 is the most capable everyday pushchair of the three — the basket, comfort, and build quality make it a genuinely great daily driver, not just a travel stroller. The Joolz Aer² works equally well day-to-day and adds the advantage of the fastest fold if you're frequently navigating public transport or tight spaces. The YOYO³ is more specialised around its accessories ecosystem — great for travel but some parents find the smaller basket limiting for full-day outings.

Is the YOYO or Bugaboo Butterfly 2 better?

It depends on your priorities. The Bugaboo Butterfly 2 wins on storage (8kg basket), recline depth, and overall build quality — making it the better everyday stroller of the two. The Stokke YOYO³ has a slimmer fold and a well-established accessories ecosystem. For pure travel use, the YOYO³ is often easier to manage on planes; for daily city use, the Butterfly is more capable.

How does the Joolz Aer² compare to the YOYO?

The Joolz Aer² is slightly heavier (6.5kg vs 6.2kg) but has the faster one-hand fold, has a taller handlebar (105.5cm vs ~99cm), and folds faster — making it the better pick for tall parents and quick public transport journeys. The YOYO³ has a more established accessories range and a slimmer folded profile. For tall parents in particular, the Aer² is the clear winner. See our tall parents stroller guide for more detail.

Is the Stokke YOYO³ worth it over the Bugaboo Butterfly 2?

Prices vary, so the YOYO³ should be compared with the Butterfly 2 using current listings and offers a slimmer fold — but the Butterfly delivers meaningfully better storage, comfort, and build quality. If budget is tight, the YOYO³ is excellent value. If you can stretch to the Butterfly and use the stroller daily, the extra spend is justified. For parents who mainly need a lightweight travel stroller used occasionally, the YOYO³ is the smarter buy.

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