Is first birthday outfit profitable to sell on Amazon United Kingdom?

The niche generates £32K/yr across 81 tracked products. 0 of 41 products launched in the last 360 days are still selling. 90-day search growth is -11.0%. Flapen's verdict: Skip it (43/100).

How competitive is the first birthday outfit niche?

22 brands and 29 sellers compete. The top 5 products take 25% of clicks and top 5 brands hold 76% of demand.

What do buyers complain about in first birthday outfit?

Top complaints mined from reviews: Size-Overall, Quality-Overall, Defective Material/Parts. The return rate is 2.4%.

When does demand for first birthday outfit peak?

Demand peaks in Jan; the busiest month runs 1.9× the quietest.

What does it cost to enter the first birthday outfit niche?

Listings span £5.03–£21.16; the average listing price is £10.38 (sweet spot $15–$100). The average incumbent carries 61 reviews — the moat a new listing must climb.

first birthday outfit

Skip it

A small market ($32K/yr) — this niche doesn't clear our bar today.

Review moat

Incredible61.17

avg incumbent reviews — the moat a new listing must climb

Competition

Great25%

top-5 click share — an open shelf

Returns

Good2.4%

return rate — above 5% kills the launch gate

Brand share

Okay76%

top-5 brand share — brands hold most of the demand

Price range

Okay£5.03–£21.16

cheapest to priciest tracked listing — scored on the share inside $15–$100

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Avg price

Okay£10.38

avg listing price — sweet spot $15–$100

Conversion

Bad1.8%

search→purchase rate — share of searches ending in a sale

Growth

Bad-11.0%

90-day search growth — must beat 0% to launch

Market size

Bad£32K

£32K/yr · 172K searches

Signals Low Review Barrier

According to Flapen's Amazon United Kingdom niche tracking, first birthday outfit is a £32K/yr Amazon United Kingdom market (172K searches/yr). The top 5 brands hold 76% of demand. Demand peaks in Jan. Verdict: Skip it — 43/100.

Data updated Jul 23, 2026 · scored weekly · How we score niches

first birthday outfit market data

Units sold / yr: 2K–2K; avg 0–100/product
Revenue / yr: £16K–£21K; units × avg price
Conversion rate: 1.8%
Avg BSR: #145
Page quality: 0%
Prime: 96%
Sponsored: 91%
Out of stock: 9.2%
Avg brand age: 28 months
Avg seller age: 191 days

Competition & brand share

Clicks spread well past the top 5 (25% combined) — an open shelf where new products get seen.

Brands

22 falling

Sellers

Top-5 brand share

76%

Top 20: 99%

Top-5 click share

25%

Top 20: 56%

Open market

20%

MAHUAOYIXI25%
Geagodelia22%
Winmany11%
Carolilly11%
Qianderer7%
AmzBarley5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -11.0% search growth over the last 90 days.

Peak months: Jan · busiest ÷ quietest = 1.9×

Open Trend

Top first birthday outfit search terms

1st birthday outfit girl32K/yr -1.9%0.5% conv.
1st birthday outfit22K/yr +10.5%0.4% conv.
first birthday outfit30K/yr -24.1%0.4% conv.
first birthday outfit girl16K/yr -8.2%0.5% conv.
cake smash outfit 1st birthday girl12K/yr -16.1%0.7% conv.
birthday dress for 1 year girl9K/yr -7.0%0.2% conv.
1st birthday dress10K/yr -34.8%0.6% conv.
baby girl 1st birthday outfit6K/yr -10.3%0.1% conv.
birthday outfit4K/yr +0.7%0.0% conv.
girls 1st birthday outfit4K/yr +15.6%0.6% conv.

All search terms

Top first birthday outfit products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Baby Girl 1st Birthday Romper Dress with Headband Letters Embroidery Flying Sleeve Bodysuits Princess Dress Sequin Layered Tulle Tutu Skirt Jumpsuit First Birthday Outfit (Khaki 12-18 Months)

Geagodelia£8.754.6★3 rev

MAHUAOYIXI Newborn Baby Girls First Birthday Outfits Letter Animal Strawberry Embroidery Sleeveless Romper Square Collar Jumpsuits Toddler Infant Girls Clothes Birthday Gift (Red 12-18 Months)

MAHUAOYIXI£9.884.8★9 rev

Winmany Baby Girl First Birthday Clothes 3PCS Bow Headband My 1st Birthday Romper Tutu Skirt Cake Smash Outfit Set for Photo Shoot

Winmany£11.424.4★131 rev

MAHUAOYIXI Newborn Baby Girls First Birthday Outfits Letter Floral Embroidery Romper Dress Long Sleeve Jumpsuits with Bowknot Headband Toddler Infant Girls Clothes (Khaki 12-18 Months)

MAHUAOYIXI£10.064.7★21 rev

Geagodelia Infant Baby Girl 1st Birthday Romper Dress Letter Embroidery Bodysuit Jumpsuit A-Line Mesh Tulle Tutu Skirt Baptism First Birthday Princess Dress with Headband (Pink 12-18 Months)

Geagodelia£9.023.9★10 rev

Newest

by launch date

HZPHQY Baby Girl 1st Birthday Outfit Flutter Sleeves Goose Embroidery Romper Bodysuit Toddler Summer Jumpsuit (A Ivory One Goose 12-18 Months)

HZPHQY£9.131 rev

1mo ago

Geagodelia 1st Birthday Baby Grow for Girls One Year Old First Birthday Cake Smash Outfits Peter Pan Collar Short Puff Sleeve Summer Clothes (One Floral White 12-18 Months)

Geagodelia£7.923 rev

2mo ago

Beauace Toddler Baby Girl 1st Birthday Outfit Summer Cake Embroidery Print Clothes Short Sleeve One Piece Bodysuit Ruffle Smocked Jumpsuit (Pink 6-12 Months)

Beauace£7.401 rev

3mo ago

Carolilly Infant Baby Girls First Birthday Outfits Letter Embroidery Short Sleeve Ruffled Romper and Bow Headband Baby Girls Summer Clothes (Pink 12-18 Months)

Carolilly£9.012 rev

4mo ago

WWAYBEI Baby Girl first Birthday Outfit Ruffle Lace Romper Princess Tutu Dress Shiny ONE Cake Smash Girs 1st Birthday Party Outfit Photoshoot Props (Pink 6-9 Months)

WWAYBEI£10.431 rev

4mo ago

What buyers say about first birthday outfit

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall31%

“the romper seems to be of good quality”

Size-Overall17%

“Cute outfit good fit”

Value For Money6%

“Well worth it”

Baking5%

“Our Granddaughter will be smashing this cake in tomorrow”

Comfort-Overall5%

“So comfy”

Design-Overall4%

“The design is very cute”

Stitch/Finish/Polish4%

“It is stitched quite well, looks nice and the material feels quite gentle”

Ease Of Use3%

“the snap closures make changing much easier”

Color3%

“The colour is perfect”

Material Quality3%

“The material was comfortable”

What buyers complain about

Size-Overall31%

“Size a little on the bigger size”

Quality-Overall30%

“Looks tacky and cheap”

Defective Material/Parts10%

“Faulty item”

Thickness1%

“The fabric feels thicker than typical everyday baby clothes”

Top return reasons

Size-Overall73%

Quality-Overall4%

Stitch/Finish/Polish3%

Material Quality3%

Length3%

Advertised Vs Actual Product2%

Chest Fit2%

Warmth2%

Knot/Thread Quality2%

Value For Money2%

Common questions

Is first birthday outfit profitable to sell on Amazon United Kingdom?: The niche generates £32K/yr across 81 tracked products. 0 of 41 products launched in the last 360 days are still selling. 90-day search growth is -11.0%. Flapen's verdict: Skip it (43/100).
How competitive is the first birthday outfit niche?: 22 brands and 29 sellers compete. The top 5 products take 25% of clicks and top 5 brands hold 76% of demand.
What do buyers complain about in first birthday outfit?: Top complaints mined from reviews: Size-Overall, Quality-Overall, Defective Material/Parts. The return rate is 2.4%.
When does demand for first birthday outfit peak?: Demand peaks in Jan; the busiest month runs 1.9× the quietest.
What does it cost to enter the first birthday outfit niche?: Listings span £5.03–£21.16; the average listing price is £10.38 (sweet spot $15–$100). The average incumbent carries 61 reviews — the moat a new listing must climb.