Single-to-double

Mockingbird Single-to-Double 3.0

The Mockingbird 3.0 starts as a single and adds a second seat when you need it, so one stroller can carry you from one kid to two.

  • From birth with newborn insert (sold separately)

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Mockingbird Single-to-Double Stroller
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On this page

Quick answer

Is the Mockingbird Single-to-Double 3.0 worth it?

The bottom line

Daily walks with a seat that faces you and room in the basket for your bags

The seat can face you, and the 25 lb basket holds a lot. For a newborn you'll need the infant insert, bassinet or car seat adapter, each sold separately.

Who it's for, and who should skip it

Who it's for

  • Great if you plan on a second kid and want a stroller that grows into a double.
  • Folds with one hand and stands up on its own.
  • Smooth on rough sidewalks, with suspension on every wheel.

Who should skip it

  • Not for you if you want a car seat to click right in. Every one needs an adapter.

The numbers that matter

50lb
Single rider limit

Your older child can ride home after the park.

45lb each
Double rider limits

Adding a sibling changes the older kid's seat limit too.

25lb
Basket holds

You can carry groceries and a diaper bag in the basket.

32seats
Car seats that fit

Pick the adapter before your first parking lot transfer.

Your newborn needs one extra piece

The regular seat starts at 3 months. Before then, you'll need the Infant Seat Insert, a bassinet or a Car Seat Adapter. Each is sold separately. Put that choice on your list before the first walk, while you still have time to think without a baby crying.

If you're using an infant car seat, every seat that fits needs an adapter. Check your exact car seat before you pick that piece. The adapter is part of the move from car to stroller, so you want it ready with the rest of the setup.

Later, the regular seat can face you or face out. The recline has several positions for the change from looking around to nodding off. Some days the walk is mostly a chat. Some days your baby falls asleep before you reach the corner.

The second seat changes the older kid's limit

The Mockingbird starts as a single, then takes a second seat when you need one. That's the appeal if you're thinking about another baby. You can keep the stroller your family already knows.

There's one catch to check early. In single mode, the seat holds 50 lb. In double mode, each seat holds 45 lb. So the older child's limit goes down when the new baby's seat joins. A big toddler can fit the single and already be too heavy for the double.

A grocery stop without bags on your shoulder

The basket holds 25 lb. You can bring the diaper bag and still make a store stop on foot. It's nice to have somewhere for dinner to ride when your hands are already busy pushing.

All-wheel suspension and shock-absorbing, never-flat tires help on rough sidewalks. You can keep walking over the cracked stretch between home and the shop without adding tire top-ups to your day.

The one-hand fold locks itself and stands upright. That gives it somewhere to wait while you get the kids inside or finish loading the car. Think about that last part too if you plan to use it as a double: the folded stroller still shares your trunk with the family bags.

Car seats, safety and specs

Car seats that fit(32)

All 32 need an adapter.

Car seats that fit the Mockingbird Single-to-Double 3.0
Car seatHow it attachesSource
Baby Jogger City GO 2Mockingbird Car Seat AdapterSource (opens in a new tab)
Britax B-Safe 35Mockingbird Car Seat AdapterSource (opens in a new tab)
Britax B-Safe Gen2 / Gen2 FlexFitMockingbird Car Seat AdapterSource (opens in a new tab)
Britax Willow S / SCMockingbird Car Seat AdapterSource (opens in a new tab)
Chicco Fit2 / Fit2 AdaptMockingbird Car Seat AdapterSource (opens in a new tab)
Chicco KeyFit / KeyFit ClearTexMockingbird Car Seat AdapterSource (opens in a new tab)
Chicco KeyFit Max ClearTex / KeyFit Max Zip ClearTexMockingbird Car Seat AdapterSource (opens in a new tab)
Chicco KeyFit Max Zip ClearLuxMockingbird Car Seat AdapterSource (opens in a new tab)
Chicco KeyFit 30 / KeyFit 30 ClearTexMockingbird Car Seat AdapterSource (opens in a new tab)
Chicco KeyFit 35 / 35 ClearTex / 35 Zip ClearTexMockingbird Car Seat AdapterSource (opens in a new tab)
Clek LiingMockingbird Car Seat AdapterSource (opens in a new tab)
Clek LiingoMockingbird Car Seat AdapterSource (opens in a new tab)
Cybex Aton MMockingbird Car Seat AdapterSource (opens in a new tab)
Cybex Cloud QMockingbird Car Seat AdapterSource (opens in a new tab)
Graco GoMaxMockingbird Car Seat AdapterSource (opens in a new tab)
Graco Premier SnugRide SnugFit XT / 35 XTMockingbird Car Seat AdapterSource (opens in a new tab)
Graco SnugRide Lite LX / 35 Lite LXMockingbird Car Seat AdapterSource (opens in a new tab)
Graco SnugRide SnugFitMockingbird Car Seat AdapterSource (opens in a new tab)
Graco SnugRide SnugFit LX / DLXMockingbird Car Seat AdapterSource (opens in a new tab)
Graco SnugRide SnugFit 35 / 35 DLX / 35 Elite / 35 LX / 35 XTMockingbird Car Seat AdapterSource (opens in a new tab)
Graco SnugRide SnugLock 35 / 35 LX / 35 PlatinumMockingbird Car Seat AdapterSource (opens in a new tab)
Graco SnugRide SnugLock 35 with Anti-Rebound BarMockingbird Car Seat AdapterSource (opens in a new tab)
Joie Mint LatchMockingbird Car Seat AdapterSource (opens in a new tab)
Joie RueMockingbird Car Seat AdapterSource (opens in a new tab)
Maxi-Cosi Mico Luxe / Luxe+Mockingbird Car Seat AdapterSource (opens in a new tab)
Maxi-Cosi Peri 180Mockingbird Car Seat AdapterSource (opens in a new tab)
Nuna PIPA / PIPA RXMockingbird Car Seat AdapterSource (opens in a new tab)
Nuna PIPA Aire / PIPA Aire RXMockingbird Car Seat AdapterSource (opens in a new tab)
UPPAbaby Aria v1 / v2 (not for twins)Mockingbird Car Seat AdapterSource (opens in a new tab)
UPPAbaby Mesa (2020 or newer)Mockingbird Car Seat AdapterSource (opens in a new tab)
UPPAbaby Mesa v2 / v3Mockingbird Car Seat AdapterSource (opens in a new tab)
UPPAbaby Mesa Max (not for twins)Mockingbird Car Seat AdapterSource (opens in a new tab)
Safety and recalls
Full specs
Full specs for the Mockingbird Single-to-Double 3.0
Folded size18 L × 26 W × 34 H inSource (opens in a new tab)
Open size26 W (widest) x 40 H (wheels to handlebar) x 33 L (front to back wheel)Source (opens in a new tab)
Child weight limit50 lb single; 45 lb per seat in double modeSource (opens in a new tab)
Minimum age3 months in seat; from birth with Infant Seat Insert, bassinet or Car Seat Adapter (sold separately); max height 42 inSource (opens in a new tab)
Minimum ageFrom birth with newborn insert (sold separately)Source (opens in a new tab)
FoldOne-hand fold; auto-locks and stands uprightSource (opens in a new tab)
Basket capacity25 lbSource (opens in a new tab)
Seat recline5-position reclineSource (opens in a new tab)
Reversible seatYesSource (opens in a new tab)
Wheels and suspensionAll-wheel suspension; shock-absorbing never-flat tires; lockable front wheelsSource (opens in a new tab)
Single-to-Double StrollerSingle-to-double
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About this page

Written by the My First Stroller team. Specs checked . Every number links to the brand page it came from.

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