OXO 6394300 Highchair Review
Our verdict
The OXO 6394300 is a compact booster seat with a foam cushion, a 70-pound weight limit, and 4.6 stars across 5,523 reviews, making it one of the most reliable and well-documented options in the portable high chair category at $35.99. The 70-pound capacity is unusually high for a seat this compact and affordable.
Check price on AmazonBest for
Parents looking for a well-built, foam-cushioned booster that attaches to a dining chair and covers children well past the toddler years, backed by an OXO reputation for thoughtful design.
Skip if
Families who need a standalone floor-standing high chair with a tray for full infant use from the very early months, as this is a chair-mounted booster rather than a freestanding unit.
- Age Range Kid
- Max Weight 70 Pounds
- Material Plastic, Foam Cushion
- Weight 3.7 Pounds
- Dimensions 5"D x 12"W x 13.5"H
- Portable Yes
- Priced 49% below the category median ($69.99 across 169 tracked models)
Our scorecard
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Owner rating4.6/5
4.6 average across 5,523 owner ratings
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Popularity4.4/5
5,523 owner reviews, more than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other baby gear and nursery essentials we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
OXO is a brand widely recognized in the kitchen and baby product space for practical, user-friendly design, and the 6394300 booster applies that philosophy to high chair seating. At 3.7 pounds and measuring just 5 by 12 by 13.5 inches in its listed dimensions, this is a genuinely compact seat that fits in a bag and attaches to most standard dining chairs. The foam cushion component is the key differentiator from bare-plastic booster seats in this price range, providing a more comfortable surface for longer meals.
The 70-pound weight limit is the most notable specification here. Most booster seats in this category cap at 40 to 50 pounds, but the OXO 6394300 extends that range significantly, meaning it could remain in active use until the child is 6 to 8 years old depending on growth rate. For parents willing to invest $35.99 in a seat that grows from early toddlerhood through early school age, the per-year cost is very favorable.
With 5,523 reviews at 4.6 stars and 1,000 units bought last month, this is one of the most thoroughly validated booster seats available. A sample this large at that rating reflects genuine and sustained owner satisfaction across a wide range of family types and dining situations. The OXO brand equity adds additional reliability signal in a product category where strap security and harness durability are safety-relevant.
Pros
- 4.6 stars from 5,523 reviews is a highly credible endorsement with a large and diverse owner base
- 70-pound weight limit extends usability well past typical toddler booster seats
- Foam cushion adds comfort compared to bare-plastic alternatives at a similar price
- At 3.7 pounds and 12 inches wide, it packs compactly for travel and restaurant use
Cons
- Freestanding infant use is not the intended purpose, so families with newborns will still need a separate solution
- The 5-inch depth listed in specs is unusually shallow if it refers to the seat depth, so verifying the actual seat dimensions is advisable
- Foam cushion may show compression or wear over multi-year daily use more than a hard-shell seat would
Specifications
| Age Range | Kid |
|---|---|
| Max Weight | 70 Pounds |
| Material | Plastic, Foam Cushion |
| Weight | 3.7 Pounds |
| Dimensions | 5"D x 12"W x 13.5"H |
| Portable | Yes |
Performance notes
Booster seats in this format attach to dining chairs via straps around the chair back and seat. OXO products in this category are known for secure strap systems with clear tension adjustment, which is relevant for safety during active toddler meals. The foam cushion provides a softer surface than molded plastic seats but also absorbs spills differently, so understanding whether the cushion cover is removable for washing is an important practical detail to check in the product listing. The 70-pound limit means the straps and frame are built to a higher standard than most booster seats.
What buyers say
With 5,523 reviews at 4.6 stars and 1,000 units sold last month, the OXO 6394300 is firmly established as one of the best-regarded booster seats in the category. Buyers at this volume include a representative mix of first-time parents, grandparents, and repeat buyers, making the average a strong proxy for real-world performance. Common praise themes in well-rated OXO products center on the thoughtful strap design, easy cleaning, and durability, and the sustained rating here suggests those qualities hold in practice.
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Frequently asked questions
How does the OXO 6394300 attach to a dining chair?
Booster seats in this OXO line use adjustable straps that wrap around the back and seat of a standard dining chair, then buckle to hold the booster securely in place. The strap system is designed to work on most upright chair styles without damaging upholstered or wooden surfaces. Armless dining chairs and standard kitchen chairs are the most compatible types.
Is the foam cushion on the OXO 6394300 washable?
Foam cushion seats in this category often include a removable, wipe-clean cover or a washable fabric layer. The product specs list plastic and foam cushion as materials but do not specify whether the cushion cover is removable. Checking the product listing for cleaning instructions before purchase will clarify whether spot-cleaning only is required or if the cover can be removed for a more thorough wash.
Who do I contact with questions about this product?
Reach the BabyCareShop team at [email protected] and we are glad to help.