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57

son birthday card

Worth a look

Shows low returns (0.1%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 56Growth 25Conversion 82Competition 81Returns 100Price range 12Avg price 11Brand share 77Review moat 73Quality gap 20

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Conversion

Great8.7%

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

Competition

Great34%

top-5 click share — an open shelf

Brand share

Great58%

top-5 brand share — no brand owns this niche

Review moat

Good592.11

avg incumbent reviews — the moat a new listing must climb

Market size

Good£410K

£410K/yr · 1.2M searches

Growth

Okay+0.3%

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

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Price range

Bad£2.62–£16.66

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

Avg price

Bad£3.81

avg listing price — sweet spot $15–$100

According to Flapen's Amazon United Kingdom niche tracking, son birthday card is a £410K/yr Amazon United Kingdom market (1.2M searches/yr). The top 5 brands hold 58% of demand. Verdict: Worth a look — 57/100.

Data updated Jul 29, 2026 · scored weekly · How we score niches

son birthday card market data

Units sold / yr
100K–125K
avg 1,250–1,500/product
Revenue / yr
£381K–£476K
units × avg price
Conversion rate
8.7%
Avg BSR
#1,868
Page quality
0%
Prime
98%
Sponsored
73%
Out of stock
1.1%
Avg brand age
32 months
Avg seller age
159 days

Competition & brand share

Clicks spread well past the top 5 (34% combined) — an open shelf where new products get seen.

Brands

33 falling

Sellers

53

Top-5 brand share

58%

Top 20: 93%

Top-5 click share

34%

Top 20: 75%

Open market

38%

  • Piccadilly Greetings26%
  • UK Greetings10%
  • Nokular9%
  • Cherry Orchard8%
  • cardbargainsuk6%
  • Jonny Javelin4%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +0.3% search growth over the last 90 days.
25K15KSpike '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.7×

Top son birthday card search terms

  • son birthday card360K/yr
  • son birthday card adult224K/yr
  • birthday card son167K/yr
  • birthday cards for son83K/yr
  • birthday card for son75K/yr
  • birthday card son adult50K/yr
  • son birthday cards for men43K/yr
  • birthday card for son adult29K/yr
  • son birthday cards28K/yr
  • happy birthday son22K/yr
All search terms

Top son birthday card 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.

0%3%£12K6%£25K9%£37K12%£49K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

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

What buyers say about son birthday card

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

What buyers love

Quality-Overall43%

“Good quality card”

Value For Money20%

“Very fair price”

Advertised Vs Actual Product13%

“Perfect, better than expected”

Size-Overall8%

“Great size”

Fun/Entertainment Experience3%

“My son enjoyed the car”

Design-Overall2%

“great design”

Collectibles2%

“Perfect card”

Print Quality2%

“good quality, clear printing and the logo was ideal as my son often helps me with tec as i'm an oap now,”

Paper Quality1%

“Well made good quality paper birthday card”

Color1%

“so colourful as shown on Amazon”

What buyers complain about

Value For Money36%

“key ring for that price I paid”

Quality-Overall23%

“Poor quality”

Size-Overall14%

“Card was not correct size and part of it was chopped off, very disappointed”

Advertised Vs Actual Product9%

“without gold ribbon as in picture”

Adhesion/Stickiness9%

“Excellent sentiment, however, the envelope doesn't stick”

Paper Quality5%

“card looked like it was home printed definitely not worth the Money”

Defective Material/Parts5%

“Card was not correct size and part of it was chopped off, very disappointed”

Top return reasons

Size-Overall24%
Advertised Vs Actual Product13%
Quality-Overall13%
Leak-Proof9%
Design-Overall4%
Product Condition4%
Flatness4%
Defective Material/Parts4%
Gifting Purpose4%
Thin4%

Common questions

Is son birthday card profitable to sell on Amazon United Kingdom?
The niche generates £410K/yr across 55 tracked products. 0 of 17 products launched in the last 360 days are still selling. 90-day search growth is +0.3%. Flapen's verdict: Worth a look (57/100).
How competitive is the son birthday card niche?
33 brands and 53 sellers compete. The top 5 products take 34% of clicks and top 5 brands hold 58% of demand.
What do buyers complain about in son birthday card?
Top complaints mined from reviews: Value For Money, Quality-Overall, Size-Overall. The return rate is 0.1%.
When does demand for son birthday card peak?
Demand is steady year-round — the busiest month runs 1.7× the quietest.
What does it cost to enter the son birthday card niche?
Listings span £2.62–£16.66; the average listing price is £3.81 (sweet spot $15–$100). The average incumbent carries 592 reviews — the moat a new listing must climb.