Chicco MyFit 2-in-1 Harness Booster Car Seat, vs UPPAbaby Alta V2 High Back Booster
Updated August 2026 — Chicco MyFit 2-in-1 Harness Booster Car Seat, wins on weight and recline position, UPPAbaby Alta V2 High Back Booster wins on height.
The Chicco MyFit offers more versatility and advanced safety features, while the UPPAbaby Alta V2 is a budget-friendly option with solid performance.
Why Chicco MyFit 2-in-1 Harness Booster Car Seat, is better
Safety Features
Chicco MyFit has Advanced Side Impact Protection.
Comfort
Chicco MyFit offers a 9-position headrest.
Installation
Chicco MyFit includes additional leveling features.
Why UPPAbaby Alta V2 High Back Booster is better
Price
UPPAbaby Alta V2 is $40 cheaper.
Cleaning
UPPAbaby Alta V2 has removable, washable fabrics.
Weight
UPPAbaby Alta V2 is lighter at 17 lbs.
Overall score
Specifications
| Spec | Chicco MyFit 2-in-1 Harness Booster Car Seat, | UPPAbaby Alta V2 High Back Booster |
|---|---|---|
| Max Weight | 100 lbs | 100 lbs |
| Max Height | 57 in | 57 in |
| Safety Rating | FMVSS 213 | Side Impact Pods |
| Cup Holder | Yes | Yes |
| Warranty | Limited | Limited |
Dimension comparison
Price Comparison
The Chicco MyFit 2-in-1 Harness Booster Car Seat is priced at $239.99, while the UPPAbaby Alta V2 High Back Booster Seat is more budget-friendly at $199.99, making it about 17% cheaper. This price difference may influence parents looking to balance quality and cost, especially when considering the long-term use of a booster seat. The Chicco MyFit's higher price reflects its dual functionality as both a harness and booster seat, which could justify the investment for growing children. In contrast, the UPPAbaby Alta V2 offers suitable features at a lower price, appealing to those prioritizing immediate savings.
Safety Features
Both the Chicco MyFit and UPPAbaby Alta V2 prioritize safety, but their approaches differ. The Chicco MyFit boasts Advanced Side Impact Protection (ASIP), designed to meet stringent Federal Motor Vehicle Safety Standards. It includes a steel-reinforced shell and EPP energy-managing foam for enhanced crash protection. Conversely, the UPPAbaby Alta V2 incorporates Side Impact Protection Pods that absorb and disperse crash forces, along with a SecureFit belt routing system to ensure proper fit and prevent submarining. Both products provide robust safety measures, but the Chicco MyFit focuses on multi-layer protection, while the UPPAbaby emphasizes proper belt positioning and ease of use.
Comfort and Adjustability
Comfort is a significant factor in car seats, and both models excel in different aspects. The Chicco MyFit features a high back booster with a 9-position headrest and a 4-position recline, designed to support proper posture as the child grows. Its ErgoBoost seat with dual-density foam padding promises a more comfortable ride. On the other hand, the UPPAbaby Alta V2 offers a seven-position Active Support Headrest, accommodating children from 40-100 lbs and 38-57 inches in height. This flexibility ensures that both car seats provide a comfortable experience, although the Chicco MyFit offers more recline options, which could be beneficial for younger children.
Installation Ease
Ease of installation is crucial for parents, and both the Chicco MyFit and UPPAbaby Alta V2 offer user-friendly setups. The Chicco MyFit includes premium LATCH connectors and a LockSure belt-tightening system, along with RideRight bubble levels to ensure proper fit in the vehicle. In comparison, the UPPAbaby Alta V2 features rigid LATCH connectors that secure the booster to the vehicle seat, ensuring alignment for everyday use. While both models are designed for straightforward installation, the Chicco MyFit's additional leveling features may provide extra assurance for parents aiming for a perfect fit.
Design and Space Efficiency
When it comes to design and space efficiency, both car seats offer advantages. The Chicco MyFit is known for its slim design, allowing it to fit three-across in the backseat without sacrificing comfort. Its CupFolders can be folded away to save space, making it a convenient choice for families with multiple children. The UPPAbaby Alta V2 also features a spacious yet slim design, with ergonomic armrests and a removable cup holder that can be used on either side. While both seats maximize space, the Chicco MyFit explicitly highlights its ability to accommodate multiple car seats simultaneously, which can be a deciding factor for larger families.
Cleaning and Maintenance
Cleaning and maintenance are important considerations for parents, especially with young children. The UPPAbaby Alta V2 shines in this category with removable, washable fabrics, making it easy to clean any messes that occur during rides. The Chicco MyFit also offers a practical design but does not emphasize removable fabrics as prominently. Instead, it focuses on durability and long-term use, showcasing features designed for safety and comfort. The Alta V2's straightforward cleaning process is a significant benefit for parents who may frequently deal with spills and stains.
Brand Reputation and Bestseller Status
Brand reputation plays a role in purchasing decisions, and both Chicco and UPPAbaby are well-respected in the child safety space. The Chicco MyFit holds a bestseller rank of 3,253, indicating its popularity among consumers, while the UPPAbaby Alta V2 follows with a rank of 6,702. This suggests that the Chicco MyFit may be a preferred choice for many parents, likely due to its comprehensive safety features and long-term usability. However, the UPPAbaby brand is also known for quality and innovation, making the Alta V2 a competitive option for those prioritizing comfort and ease of use.
Which should you buy?
Choosing between the Chicco MyFit 2-in-1 Harness Booster Car Seat and the UPPAbaby Alta V2 High Back Booster Seat ultimately depends on your priorities as a parent. If you value versatility and advanced safety features, the Chicco MyFit, with its dual functionality and high safety standards, may be the better choice despite its higher price. However, if you are looking for a more budget-friendly option that still offers solid safety and comfort features, the UPPAbaby Alta V2 is an excellent choice. Both products excel in their own right, so your decision should align with your specific needs, family dynamics, and budget considerations.

