Cosco Topside Backless Booster Car Seat, vs Evenflo GoTime LX Booster Car Seat
Updated July 2026 — Cosco Topside Backless Booster Car Seat, wins on portability, Evenflo GoTime LX Booster Car Seat wins on weight and height.
The Cosco Topside offers excellent portability and affordability, while the Evenflo GoTime excels in safety features and adjustability.
Why Cosco Topside Backless Booster Car Seat, is better
Price
Cosco is significantly cheaper at $19.99.
Weight
Cosco is lighter and more portable.
Simplicity
Cosco has a straightforward design.
Why Evenflo GoTime LX Booster Car Seat is better
Safety
Evenflo has advanced safety features.
Adjustability
Evenflo offers seven height positions.
Comfort
Evenflo includes machine-washable fabric and cup holders.
Overall score
Specifications
| Spec | Cosco Topside Backless Booster Car Seat, | Evenflo GoTime LX Booster Car Seat |
|---|---|---|
| Max Weight | 100 lbs | 120 lbs |
| Modes | Backless | High back/Backless |
| Cup Holders | None | 2 |
| Machine Washable | No | Yes |
| Safety Standards | Basic | Advanced |
Dimension comparison
Design and Portability
The Cosco Topside Backless Booster Car Seat is significantly lighter and more portable compared to the Evenflo GoTime LX Booster Car Seat. Priced at $19.99, the Cosco booster is designed with a lightweight, compact profile that makes it easy to move between vehicles, ideal for families on the go. Its backless design contributes to this portability while still offering enough height to keep seatbelts properly positioned for children weighing 40 to 100 pounds.
In contrast, the Evenflo GoTime LX, retailing at $55.99, features a more substantial build with a high back and no-back booster mode. This model’s deeper design with overlapping head and body sides adds bulk but also enhances safety and comfort. While it provides versatility through its dual-mode use, it is less compact and portable compared to the Cosco Topside. Families prioritizing a lightweight, travel-friendly option will likely prefer the Cosco, whereas those seeking a more robust seat may lean toward the Evenflo.
Safety Features
Safety is a key consideration, and the Evenflo GoTime LX Booster Car Seat offers more comprehensive protection features than the Cosco Topside Backless Booster. Evenflo’s model meets or exceeds all applicable federal safety standards and includes a deep design with overlapping head and body sides, providing enhanced support where it’s needed most. Additionally, the GoTime LX includes a belt clip to help properly position the vehicle’s seatbelt on the child’s shoulder, which contributes to better overall safety.
The Cosco Topside Backless Booster focuses primarily on proper seatbelt positioning by providing extra height for children 40 to 100 pounds. While it offers a seat-friendly design that won’t scuff or leave indentations on vehicle seats, it lacks the added side impact protection and belt positioning aids found in the Evenflo. Parents prioritizing advanced safety features and side-impact support may find the Evenflo a better fit despite its higher price.
Adjustability and Fit
When it comes to adjustability, the Evenflo GoTime LX Booster Car Seat stands out with its seven height positions adjustable with one hand. This feature allows the seat to grow with your child, accommodating kids from 40 to 120 pounds and between 44 and 60 inches tall. Its dual-mode design lets you switch from a high back to a backless booster, making it versatile for different stages of your child’s development.
In contrast, the Cosco Topside Backless Booster is designed for a fixed range of children weighing 40 to 100 pounds and measuring 43.4 to 57 inches tall. It does not offer height adjustment or dual-mode functionality, limiting its adaptability as your child grows. Families seeking a booster that evolves with their child will likely prefer the Evenflo’s customizable fit, while those needing a simple, straightforward booster may choose the Cosco.
Comfort and Cleaning
Comfort is addressed differently by the two models. The Cosco Topside Backless Booster offers extra-plush padding for a more comfortable ride and has a fabric cover that is hand-wash only. Its minimalist design focuses on providing a comfortable cushion while maintaining portability.
The Evenflo GoTime LX Booster Car Seat also prioritizes comfort with a padded seat that is removable and machine-washable, making cleaning easier for busy parents. Its deep design and supportive sides contribute to a more secure and comfortable seating experience, especially on longer trips. The inclusion of two cup holders further enhances convenience, allowing children to keep drinks and snacks close at hand. For families valuing cleaning ease and additional comfort features, the Evenflo has an edge.
Weight and Size Considerations
The Cosco Topside Backless Booster’s lightweight and compact design makes it a standout for families needing a booster that can be easily transferred between cars or used for travel. Its backless form contributes to a smaller footprint and easier storage, which is beneficial for families with limited space.
The Evenflo GoTime LX Booster’s larger and deeper structure, designed to provide side impact support and additional comfort, makes it bulkier by comparison. The dual-mode feature adds to its overall size, especially when used in the high back configuration. For parents balancing space constraints and portability, the Cosco offers clear advantages, while the Evenflo offers enhanced protection and comfort at the cost of extra bulk.
Price Comparison and Value
Price is a major differentiator between these two boosters. The Cosco Topside Backless Booster is priced at $19.99, making it about 64% less expensive than the Evenflo GoTime LX, which retails for $55.99. This significant price gap reflects their different feature sets and design focuses.
The Cosco provides a budget-friendly option with essential booster features suitable for children weighing 40-100 pounds. It’s an excellent value for families who want a simple, lightweight booster without extra bells and whistles. Meanwhile, the Evenflo GoTime LX commands a higher price due to its advanced safety features, adjustability, dual-mode use, and comfort enhancements like cup holders and machine-washable fabric. For those prioritizing safety and versatility, the higher cost may be justified.
Popularity and Consumer Appeal
The Cosco Topside Backless Booster Car Seat holds a bestseller rank of 310, indicating strong popularity and consumer trust. Its simplicity, portability, and affordability likely contribute to this high ranking, appealing to parents who want a reliable booster without breaking the bank.
The Evenflo GoTime LX Booster Car Seat has a sales rank of 5,558, suggesting it is less commonly purchased or newer in the market. Its higher price point and more specialized features might narrow its appeal to parents seeking a longer-lasting, feature-rich booster seat. Both products serve different segments of the market effectively, with Cosco leading in volume and Evenflo focusing on premium features.
Which should you buy?
Choosing between the Cosco Topside Backless Booster Car Seat and the Evenflo GoTime LX Booster Car Seat depends largely on your priorities. If you need a lightweight, highly portable, and budget-friendly booster for children 40 to 100 pounds, the Cosco is hard to beat at $19.99. Its straightforward design, extra-plush padding, and seat-friendly construction make it ideal for families on the move or those seeking simplicity.
On the other hand, if safety features, adjustability, and comfort are your top concerns, the Evenflo GoTime LX justifies its $55.99 price with seven height positions, dual-mode use, side impact support, integrated cup holders, and machine-washable fabric. It accommodates a broader weight range (40 to 120 pounds) and grows with your child, potentially extending the booster’s usability.
In summary, choose the Cosco for affordability and portability, and the Evenflo for enhanced safety, comfort, and adaptability as your child grows.

