Safety 1st Grow and Go 2-in-1 Booster Car Seat vs UPPAbaby Extra Mesa Car Seat Base / Compatible
Updated August 2026 — Safety 1st Grow and Go 2-in-1 Booster Car Seat leads on capacity and width.
The Safety 1st Grow and Go offers better versatility and value for older children, while the UPPAbaby Extra Mesa excels in installation features for infant car seats.
Why Safety 1st Grow and Go 2-in-1 Booster Car Seat is better
Price
Safety 1st is $116 cheaper than UPPAbaby.
Versatility
Safety 1st converts from high-back to backless.
Space Efficiency
Safety 1st fits three across in most vehicles.
Why UPPAbaby Extra Mesa Car Seat Base / Compatible is better
Installation
UPPAbaby has a SmartSecure system for easy installation.
Compatibility
UPPAbaby is specifically designed for Mesa car seats.
Safety Features
UPPAbaby includes a built-in lock-off for secure installation.
Overall score
Specifications
| Spec | Safety 1st Grow and Go 2-in-1 Booster Car Seat | UPPAbaby Extra Mesa Car Seat Base / Compatible |
|---|---|---|
| Price | $83.99 | $199.99 |
| Weight Limit | 40-100 lbs | N/A |
| Installation | Standard | SmartSecure |
| Cup Holders | 2 | 0 |
| Machine Washable | Yes | No |
Dimension comparison
Overview
In this comparison, we will look at the Safety 1st Grow and Go 2-in-1 Booster Car Seat with ComfortWings and the UPPAbaby Extra Mesa Car Seat Base. The former is priced at $83.99, while the latter costs $199.99, making the booster car seat about 58% cheaper than the car seat base. Both products are designed for child safety but serve different purposes in the realm of child car seats.
Design and Versatility
The Safety 1st Grow and Go 2-in-1 Booster Car Seat is designed to grow with your child, converting from a high-back to a backless booster. This versatility allows it to accommodate children weighing between 40-100 lbs and measuring 43.4" to 57" tall. In contrast, the UPPAbaby Extra Mesa Car Seat Base is specifically compatible with UPPAbaby Mesa, Mesa V2, and Mesa V3 Infant Car Seats. While the booster car seat offers more adaptability for growing kids, the car seat base is tailored for ease of use across multiple vehicles.
Installation Process
In terms of installation, the UPPAbaby Extra Mesa Car Seat Base excels with its SmartSecure system, which simplifies the process significantly. It features auto-retracting LATCH connectors and a tightness indicator, ensuring a secure fit without hassle. The Safety 1st Grow and Go, while easier for kids to buckle themselves in, does not emphasize the installation process as strongly as the UPPAbaby. For parents frequently moving a car seat between vehicles, the Mesa Base's quick installation is a significant advantage.
Comfort Features
The Safety 1st Grow and Go 2-in-1 Booster Car Seat is designed with ComfortWings, which expand as the headrest rises, offering a total seat width of 19". This feature ensures a comfortable fit for children as they grow. Additionally, it has a machine-washable seat pad and removable cup holders for convenience. The UPPAbaby Extra Mesa Car Seat Base, on the other hand, focuses more on secure installation and compatibility rather than comfort features, making the Safety 1st a better option for those prioritizing comfort.
Space Efficiency
When it comes to space efficiency, the Safety 1st Grow and Go is particularly noteworthy. Its narrow design allows it to fit three across in the back seat of most vehicles, making it ideal for families with multiple children. The UPPAbaby Extra Mesa Car Seat Base does not provide specific information about its dimensions or space efficiency, which could limit its appeal for families needing to maximize space in their vehicles.
Price Comparison
The Safety 1st Grow and Go 2-in-1 Booster Car Seat is priced at $83.99, making it a more budget-friendly option compared to the UPPAbaby Extra Mesa Car Seat Base, which retails for $199.99. This price difference of about $116 represents a significant saving, especially for families who may be on a tight budget. While both products have their unique benefits, the substantial price gap makes the Safety 1st an attractive choice for parents looking for value.
Target Audience
The Safety 1st Grow and Go targets parents with older children who need a booster seat that can adapt as their child grows. Its wide weight range and adjustable headrest make it versatile for various stages of childhood. On the other hand, the UPPAbaby Extra Mesa Car Seat Base is aimed at families using UPPAbaby car seats and who may need multiple bases for different vehicles. This product is tailored specifically for those who prioritize compatibility with the UPPAbaby brand, making it less versatile than the Safety 1st option.
Safety Features
Both products prioritize safety but in different ways. The Safety 1st Grow and Go includes shoulder and lap belt guides to ensure proper seatbelt positioning, allowing children to buckle themselves in easily. The UPPAbaby Extra Mesa Car Seat Base features a built-in lock-off for secure seatbelt installation, along with a tightness indicator to ensure a correct fit. While both seats offer key safety features, the emphasis on installation safety in the UPPAbaby base may appeal more to new parents concerned about proper installation.
Which should you buy?
When deciding between the Safety 1st Grow and Go 2-in-1 Booster Car Seat and the UPPAbaby Extra Mesa Car Seat Base, it largely depends on your specific needs. If you are looking for a cost-effective, versatile solution for older children that maximizes space and comfort, the Safety 1st is the clear winner at $83.99. However, if you are already using UPPAbaby Mesa car seats and require a reliable base for multiple vehicles, the UPPAbaby Extra Mesa Car Seat Base, though pricier at $199.99, provides excellent installation features and compatibility. Ultimately, the choice hinges on your family's unique requirements and budget.

