Can this be used for babies who can’t sit up on their own?

Yes it can :). As long as the baby has head control (which typically happens around 4 months). Steve

My seat just arrived and it’s not in a box. Is that normal?

No. That is not normal. It should definitely come in the box. Please return to Amazon and order another one. Cheers, Steve

Can you buy a replacement tray? I'd like to have 2 trays, one for playtime (with toys with suction cups that remain on the tray) one for feeding.

You may be able to get one directly from the company but as a Mom of 4 I would say save your money and just remove the toys before feeding and replace them after. Most suction cup toys aren’t THAT strong that it’s troublesome to remove and replace them.

What is the minimum weight/length requirement? My son is 8 months but was born 14 weeks early and is still tiny for his adjusted age (5.5 months).

I don’t have the exact info you’re looking for...sorry. The manufacturer indicates this product is appropriate from age 4 months. I think the more important factor is your little guy’s head/neck control, rather than his size. My daughter has used this seat from four months on with no problems. In fact, the bigger the baby, the more likely they’ll be able to lock out their legs and scoot the entire seat (which is what my baby has figured out in the last month).

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Baby Chair Booster Seat with Tray for Upright Posture and Healthy Hips

Product ID: 384188872

Details

Brand
Upseat
Colour
Gray
Item weight
2.45 kg
Material
Foam
Product dimensions
15D x 16W x

🎒Lightweight & travel-friendly

🦵Supports healthy hip development

🪑Versatile floor & booster seat

€ 450.25

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Description

🍼 Elevate every sit — because your baby deserves the best seat in the house!

ON THE GO READY - Compact, lightweight with easy-grip handle for effortless travel
MODERN MINIMALIST - Sleek gray design complements any stylish home
HIP HEALTHY COMFORT - Spacious seat promotes natural, safe hip positioning
LIFETIME DURABILITY - Medical-grade foam backed by a lifetime warranty
POSTURE PERFECT DESIGN - Expert-developed to engage muscles for upright sitting

The Upseat Baby Chair Booster Seat with Tray is a versatile, expert-designed seating solution for babies 4 months to 2 years (up to 30 lbs). Crafted from durable medical-grade foam, it promotes healthy hip development and upright posture, backed by a lifetime warranty. Its lightweight, compact design with a detachable tray and booster straps makes it perfect for both home and travel, blending safety, comfort, and style seamlessly.

Specifications

ASIN	B07JQXZ2CW
Age Range Description	Baby
Assembly Required	No
Best Sellers Rank	#1,600 in Baby Products ( See Top 100 in Baby Products ) #3 in Hook-On & Booster Seats
Brand	Upseat
Color	Gray
Customer Reviews	4.6 4.6 out of 5 stars (7,381)
Is Portable	Yes
Item Dimensions D x W x H	15D x 16W x 10H centimeters
Item Weight	2.45 kg
Manufacturer	Nuvate Inc. (The Upseat Company)
Material Type	Foam
Maximum Weight Recommendation	13.61 kg
Model Number	101
Part Number	101
UPC	627987000276
Unit Count	1.00 Piece

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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€ 450.25

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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