Mockingbird Single-to-Double 3.0

The Mockingbird Single-to-Double 3.0 weighs 28 lb, folds to 9 cu ft, and holds a child up to 50 lb, per Mockingbird. It works from birth with a bassinet sold separately. The seat faces you or the world, and the stroller converts to a double with a second seat. A single stroller that turns into a double when you add a second seat kit, aimed at families expecting a second child. Seat faces either way and has five recline positions.

  • $549List price
  • 28 lbWeight
  • 9.0 cu ftFolded
  • 50 lbHolds up to

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How the Single-to-Double 3.0 stacks up

Against the 95 full-size strollers we track. The shaded band is where the middle half of them fall; the dot is this one.

Basket limit25 lb11th highest basket limit of 46

Within the typical range for full-size strollers (10 lb to 25 lb).

This one
10 lbmiddle 20 lb70 lb
Weight28 lb49th lightest of 74

Within the typical range for full-size strollers (24.1 lb to 28.8 lb).

This one
18.4 lbmiddle 26.8 lb42.5 lb
Folded size9 cu ft45th smallest fold of 61

Within the typical range for full-size strollers (6.9 cu ft to 9.1 cu ft).

This one
3.1 cu ftmiddle 7.7 cu ft12.3 cu ft
Child weight limit50 lb18th highest weight limit of 87

The same as most full-size strollers (50 lb).

This one
39.6 lbmiddle 50 lb65 lb
Price$54925th lowest price of 70

Within the typical range for full-size strollers ($479.99 to $999.99).

This one
$229.99middle $699.95$1,699.99

What sets the Single-to-Double 3.0 apart

Measured against the 95 full-size strollers we compare, from each maker's published specs.

  • Converts to a double26 of the 93 full-size strollers with this listed have it
  • 11th highest basket limitof the 46 full-size strollers with it published: 25 lb
  • Weight: 28 lbin the middle half of the 74 full-size strollers that publish it (24.1 lb to 28.8 lb)
  • Folded size: 9 cu ftin the middle half of the 61 full-size strollers that publish it (6.9 cu ft to 9.1 cu ft)

Next to its closest matches

  • Venice Child Ventura Single to DoubleNext to it, the Single-to-Double 3.0 is 0.2 lb heavier; 2 lb higher limit.
  • Joovy Qool PremiumNext to it, the Single-to-Double 3.0 is 2.8 lb lighter; 5 lb lower limit.
  • Mompush Ultimate 3Next to it, the Single-to-Double 3.0 is 11.8 lb more basket capacity; 0.3 lb lighter; 1.5 cu ft bigger folded; has converts to a double (the Ultimate 3 doesn't).

Single-to-Double 3.0: from newborn to toddler

StageWhat Mockingbird lists
From birthYes, with bassinet (sold separately)
Seat facesYou or the world (reversible)
Seat holdsUp to 50 lb
Second childConverts to carry two

Limits as the maker lists them. Follow the manual for your stroller.

Listed features

  • Grows from single to double with a second seat kit
  • One-hand fold that stands on its own
  • Reversible seat with 5 recline positions
  • Works with 50+ infant car seats via adapter

Worth checking

  • Newborn use needs a separately sold bassinet, insert or car seat adapter
  • About 36 lb as a double

Where to buy the Single-to-Double 3.0

Prices and availability change. We may earn a commission from some links.

good to know
  • New for 2026. Some specs may not be published yet.
  • Check for recalls: Search the agency's recall list with the model number and date code from the label: CPSC recall search.
  • Use and supervision: follow the maker's warnings on the product, and see CPSC's Safe Nursery guide. Check the label and the maker's instructions, and ask your pediatrician about your child.

Full specs

Mockingbird Single-to-Double 3.0
List price$549
Weight28 lb
Folded size18 × 25.5 × 34 in9.0 cu ft
Open size33 × 25.5 × 40 in
Seat holds up to50 lb
Child height up to42 in
From birth?Yes, with bassinet (sold separately)
Bassinet holds up to20 lb
Seat faces you or the worldYes
One-hand foldYes
Stands when foldedYes
Fits airline overhead binNo
Converts to a doubleYes
Basket25 lb, XL basket; seat-back and in-seat pockets
Car seats50+ infant car seat models with the Car Seat Adapter (sold separately)
Car seat adaptersMockingbird Car Seat Adapter (50+ infant seats)
In the boxFrame, wheels, seat with canopy, LegShade and child bar (2nd Seat Kit 3.0 sold separately, $175)
Sold as a travel systemSingle-to-Double Stroller 3.0 + Bassinet Bundle ($699)
Released2026
Handlebar heightAdjustable
Wheels and suspensionNever-flat wheels with all-wheel suspension; front wheels lock
CanopyExtendable UPF 50+, height-adjustable, with leg shade

Compare the Single-to-Double 3.0 with

How each closest rival differs from the Single-to-Double 3.0, from the makers' specs.

Accessories that fit the Single-to-Double 3.0

Each maker lists this stroller as a fit. Fit can depend on the model year, so check yours on the product page.

Organizers

Footmuffs

Sun shades

Bug nets

Ask the meadow

Single-to-Double 3.0: questions answered

From Mockingbird's published specs, last checked 2026-11-06.

How much does the Mockingbird Single-to-Double 3.0 weigh?

The Mockingbird Single-to-Double 3.0 weighs 28 lb. The lightest full-size stroller we track is the Nuna TRIV next at 18.4 lb.

How big is the Mockingbird Single-to-Double 3.0 when folded?

It folds to 18 × 25.5 × 34 in, about 9.0 cubic feet. It stands on its own when folded. Compare folded sizes of all full-size strollers.

Can you use the Mockingbird Single-to-Double 3.0 from birth?

Yes, with bassinet (sold separately). Car seats: 50+ infant car seat models with the Car Seat Adapter (sold separately).

What is the weight limit of the Mockingbird Single-to-Double 3.0?

The seat holds a child up to 50 lb.

Does the Mockingbird Single-to-Double 3.0 fit in an airplane overhead bin?

No. Plan to gate-check it. For overhead-bin strollers, see compact and travel strollers.

Can the Mockingbird Single-to-Double 3.0 be converted to a double stroller?

Yes, with a second seat or bassinet sold separately.

How much does the Mockingbird Single-to-Double 3.0 cost?

The maker's US list price is $549. Sale prices change often, so check the retailer.

What's the difference between the Mockingbird Single-to-Double 3.0 and the Venice Child Ventura Single to Double?

By the specs, the Ventura Single to Double is 0.2 lb lighter, and the Single-to-Double 3.0 lists for $0.99 less. See the Single-to-Double 3.0 and Ventura Single to Double side by side.

Still wondering? Write to us at hello@cribpicks.com and we'll look it up.

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