Skip to content
43

256gb micro sd card

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Market size 82Growth 17Conversion 70Competition 6Returns 84Price range 95Avg price 95Brand share 0Review moat 0Quality gap 24

Avg price

Incredible£26.98

avg listing price — sweet spot $15–$100

Price range

Incredible£17.06–£39.97

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

Returns

Great1.6%

return rate — above 5% kills the launch gate

Market size

Great£1.3M

£1.3M/yr · 721K searches

Conversion

Good6.4%

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

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Growth

Bad-16.0%

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

Competition

Bad93%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

Review moat

Bad60,994.29

avg incumbent reviews — the moat a new listing must climb

According to Flapen's Amazon United Kingdom niche tracking, 256gb micro sd card is a £1.3M/yr Amazon United Kingdom market (721K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Dec. Verdict: Skip it — 43/100.

Data updated Jul 21, 2026 · scored weekly · How we score niches

256gb micro sd card market data

Units sold / yr
50K–60K
avg 3,000–4,000/product
Revenue / yr
£1.3M–£1.6M
units × avg price
Conversion rate
6.4%
Avg BSR
#22
Page quality
0%
Prime
86%
Sponsored
100%
Out of stock
0.5%
Avg brand age
36 months
Avg seller age
177 days

Competition & brand share

The top 5 products capture 93% of clicks — a locked-up shelf that new listings rarely crack.

Brands

4 falling

Sellers

89

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

93%

Top 20: 100%

Open market

0%

  • SanDisk87%
  • Amazon Basics6%
  • Samsung4%
  • whraqzzc3%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -16.0% search growth over the last 90 days.
25K15KSpike '24Holiday '24Prime Day '25Spike '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Dec · busiest ÷ quietest = 1.6×

Top 256gb micro sd card search terms

  • 256gb micro sd card220K/yr
  • micro sd card 256gb177K/yr
  • 256gb sd card63K/yr
  • sd card 256gb97K/yr
  • 256 gb micro sd card16K/yr
  • sandisk micro sd card 256gb16K/yr
  • microsd card 256 gb13K/yr
  • sd card 25610K/yr
  • 256gb micro sd11K/yr
  • micro sd card 25612K/yr
All search terms

Top 256gb micro sd 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%15%£188K30%£375K45%£563K60%£751K101001K10K100K1.0M Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 7 tracked products in this niche — three views at once, no toggling.

What buyers say about 256gb micro sd card

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

What buyers love

Quality-Overall22%

“quality cards that work well and are reliable”

Value For Money12%

“Great value for money”

Storage Capacity12%

“has lots of storage”

Advertised Vs Actual Product10%

“works as expected”

Data Transfer Speed10%

“Write speeds are quick”

Camera Quality5%

“Perfect for my dslr camera”

Functionality-Overall5%

“This SanDisk card handles the heavy lifting effortlessly”

Durability4%

“It also feels durable and well-built”

Size-Overall3%

“Fits perfectly”

Security3%

“Ideal for security camera”

What buyers complain about

Value For Money30%

“Somewhat expensive”

Functionality-Overall17%

“Didnt work”

Compatibility-Overall13%

“Did not work on multiple devices, requested replacement”

Computation Performance7%

“Card too slow for this device”

Data Transfer Speed6%

“I'm only getting 80mb/sec transfer speed”

Connectivity-Overall4%

“faulty product, arrived and immediately had issues with connecting”

Display Colors4%

“On closer inspection this card doesnt show any similarity to all my other Sandisk cards the font of Sandisk isnt the same the colours used on the card arent the same”

Durability4%

“Failed after 4 uses”

Socket/Port/Plug2%

“I just slid it into the side port”

Color2%

“The paint and sticker colors are different”

Top return reasons

Compatibility-Overall37%
Functionality-Overall24%
Size-Overall11%
Camera Quality5%
Defective Material/Parts4%
Computation Performance3%
Storage Capacity2%
Value For Money2%
Advertised Vs Actual Product2%
Connectivity-Overall1%

Common questions

Is 256gb micro sd card profitable to sell on Amazon United Kingdom?
The niche generates £1.3M/yr across 7 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -16.0%. Flapen's verdict: Skip it (43/100).
How competitive is the 256gb micro sd card niche?
4 brands and 89 sellers compete. The top 5 products take 93% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in 256gb micro sd card?
Top complaints mined from reviews: Value For Money, Functionality-Overall, Compatibility-Overall. The return rate is 1.6%.
When does demand for 256gb micro sd card peak?
Demand peaks in Dec; the busiest month runs 1.6× the quietest.
What does it cost to enter the 256gb micro sd card niche?
Listings span £17.06–£39.97; the average listing price is £26.98 (sweet spot $15–$100). The average incumbent carries 60,994 reviews — the moat a new listing must climb.