Chicco MyFit 2-in-1 Harness Booster Car Seat, vs Doona Car Seat & Stroller, Nitro Black -
Updated August 2026 — Chicco MyFit 2-in-1 Harness Booster Car Seat, wins on max weight and min weight, Doona Car Seat & Stroller, Nitro Black - wins on height.
The Chicco MyFit offers excellent longevity and safety for growing children, while the Doona provides unmatched convenience for parents on the go. Choose based on your specific needs.
Why Chicco MyFit 2-in-1 Harness Booster Car Seat, is better
Price
Chicco MyFit is significantly less expensive at $239.99.
Weight Limit
Chicco MyFit accommodates children up to 100 lbs.
Versatility
Chicco MyFit serves as both a harness car seat and a booster.
Why Doona Car Seat & Stroller, Nitro Black - is better
Portability
Doona transforms from car seat to stroller in seconds.
Infant Support
Doona is suitable for infants from 4 lbs.
Safety Features
Doona includes advanced 3-layer side impact protection.
Overall score
Specifications
| Spec | Chicco MyFit 2-in-1 Harness Booster Car Seat, | Doona Car Seat & Stroller, Nitro Black - |
|---|---|---|
| Safety Rating | FMVSS 213a | TUV & FAA approved |
| Harness Type | 5-point | 5-point |
| Recline Positions | 4 | N/A |
| Cup Holders | 2 | N/A |
| Installation | LATCH & Seatbelt | One-click |
Dimension comparison
Overview of Chicco MyFit 2-in-1 Harness Booster Car Seat and Doona Car Seat & Stroller
The Chicco MyFit 2-in-1 Harness Booster Car Seat is priced at $239.99, while the Doona Car Seat & Stroller retails for $650.00. This significant price difference of approximately 63% indicates distinct functionalities and target markets for each product. The Chicco MyFit aims at long-term use for growing children, while the Doona offers an innovative all-in-one solution for parents on the go.
Design and Functionality
The Chicco MyFit features a 2-in-1 design that transitions from a 5-point harness car seat for toddlers to a belt-positioning booster for bigger kids, accommodating children from 26.5 to 100 lbs. In contrast, the Doona serves as both a rear-facing car seat and a stroller, offering a seamless transition between the two modes with just a click. The Doona is designed for infants weighing between 4 and 30 lbs, making it more suitable for newborns compared to the Chicco MyFit, which is intended for children at least 2 years old.
Safety Features
Safety is paramount in both models, but they approach it differently. The Chicco MyFit incorporates Advanced Side Impact Protection (ASIP) and has been engineered to meet the Federal Motor Vehicle Safety Standard FMVSS 213a. Additionally, it features a steel-reinforced shell and EPP energy-managing foam for added security. On the other hand, the Doona boasts a more comprehensive safety system that includes 3-layer side impact protection, an anti-rebound bar for crash technology, and a 5-point safety harness. Both products rank well in safety, but the Doona's extensive testing for multiple uses may offer extra peace of mind for new parents.
Comfort and Ergonomics
In terms of comfort, the Chicco MyFit is designed with a high-back booster that features a 9-position headrest and a 4-position recline, along with an extra-deep ErgoBoost seat with dual-density foam padding. This design ensures that children remain comfortable as they grow. The Doona, while also focusing on comfort, provides an ergonomic design specifically for infants with a near-flat position to support proper alignment of the neck and back. However, it is essential to note that the Chicco MyFit is better suited for older children, whereas the Doona is tailored for newborns and infants.
Installation and Usability
The Chicco MyFit is equipped with premium LATCH connectors and a LockSure seat belt locking system that makes installation straightforward. The RideRight bubble levels and ReclineSure leveling system enhance the fitting process, ensuring a secure installation. The Doona, meanwhile, is designed for quick transitions with its one-click mechanism, allowing parents to switch from car seat to stroller in seconds. This usability feature is particularly appealing for those who frequently travel or run errands. Both models excel in installation ease but cater to different user needs.
Versatility and Portability
The Chicco MyFit excels in versatility by accommodating children up to 100 lbs and providing a slim design that fits three-across in the backseat. This makes it a great option for families with multiple car seats. Conversely, the Doona is highly portable, transforming from a car seat to a stroller, which is ideal for parents who are constantly on the move. Its compact design allows it to fold down easily, making it convenient for travel. The choice between these two products ultimately depends on whether you prioritize longevity in car seat use or portability in travel.
Pricing and Value
With a price tag of $239.99, the Chicco MyFit is significantly less expensive than the Doona, which costs $650.00. This 63% price difference suggests that parents on a budget might find the Chicco MyFit to be a more economical choice, especially considering that it serves a dual purpose for children as they grow. However, the Doona's higher price point reflects its multifunctionality as both a car seat and a stroller, which could justify the investment for families seeking convenience.
Which should you buy?
Ultimately, the choice between the Chicco MyFit 2-in-1 Harness Booster Car Seat and the Doona Car Seat & Stroller boils down to individual needs and preferences. If you're looking for a long-lasting car seat that grows with your child and offers excellent safety features, the Chicco MyFit is a compelling option at $239.99. However, if you prioritize convenience and are often on the go with an infant, the Doona’s all-in-one design may justify its higher price of $650.00. Consider your family’s lifestyle, budget, and the specific age range of your child when making your decision.

