knife sharpeners
Worth a lookShows low returns (0.6%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Returns
Incredible0.6%return rate — above 5% kills the launch gate
Market size
Great£1.9M£1.9M/yr · 1.7M searches
Avg price
Great£16.12avg listing price — sweet spot $15–$100
Price range
Great£4.31–£115.48cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Good6.9%search→purchase rate — share of searches ending in a sale
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Brand share
Good67%top-5 brand share — brands hold most of the demand
Competition
Bad70%top-5 click share — a locked-up shelf
Review moat
Bad17,513.86avg incumbent reviews — the moat a new listing must climb
Growth
Bad-18.3%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, knife sharpeners is a £1.9M/yr Amazon United Kingdom market (1.7M searches/yr). The top 5 brands hold 67% of demand. Demand peaks in Jan–Nov–Dec. Verdict: Worth a look — 59/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
knife sharpeners market data
- Units sold / yr
- 100K–125K
- avg 5,000–6,000/product
- Revenue / yr
- £1.6M–£2.0M
- units × avg price
- Conversion rate
- 6.9%
- Avg BSR
- #76
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 91%
- Out of stock
- 0.0%
- Avg brand age
- 57 months
- Avg seller age
- 176 days
Competition & brand share
The top 5 products capture 70% of clicks — a locked-up shelf that new listings rarely crack.Brands
16 rising
Sellers
59
Top-5 brand share
67%
Top 20: 85%
Top-5 click share
70%
Top 20: 98%
Open market
19%
- AnySharp38%
- --15%
- Lantana13%
- Pietuley8%
- vigvitfur4%
- longzon3%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -18.3% search growth over the last 90 days.Peak months: Jan, Nov, Dec · busiest ÷ quietest = 2.6×
Top knife sharpeners search terms
- knife sharpener1.3M/yr
- knife sharpener uk127K/yr
- knife sharpeners51K/yr
- kitchen knife sharpener39K/yr
- knife sharpening14K/yr
- manual knife sharpeners15K/yr
- knives sharpener13K/yr
- knife-sharpener17K/yr
- diamond knife sharpener12K/yr
- professional knife sharpener11K/yr
Top knife sharpeners 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.
All 22 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
AnySharp Knife Sharpener Hands-Free Safety PowerGrip Suction Safely Sharpens All Kitchen Knives Ideal for Hardened Steel & Serrated Worlds Best Compact One Size Silver
AnySharp£6.114.5★79,354 rev
AnySharp Knife Sharpener Hands-Free Safety PowerGrip Suction Safely Sharpens All Kitchen Knives Ideal for Hardened Steel & Serrated Worlds Best Compact One Size Black
AnySharp£6.394.5★79,354 rev
Diamond Edge No.1 Knife Sharpener - Safe Compact and Easy to Use Manual Knife Sharpener for Any Knife - Knives Sharpener Suitable for Serrated & Outdoor Blades - Professional Quality
--£7.994.4★10,429 rev
Lantana Smart Sharp Knife Sharpener - Professional 3 Stage Manual Sharpener for Sharpening Kitchen Knives - Ceramic Stone Tungsten Carbide Plates Diamond rods. Ergonomic Design Black/Chrome Finish
Lantana£10.694.5★23,965 rev
Rolling Knife Sharpener for Kitchen Knives - Rolling Knife Sharpening - Knife Sharpener Tool Kit Offers Sharpening Stone - Birthday Gift for Women Men - Sharpening Steels- Fathers Day Present
Pietuley£25.184.3★1,296 rev
Newest
by launch date
Vigvitfur 4-in-1 Kitchen Knife Sharpener Professional Grade with Tungsten Steel Ceramic Slots Scissor Sharpening Black Red Removable Grinding Head (red 4)
vigvitfur£4.4297 rev
Sharp Knife Sharpener - 3 Stage Professional Kitchen Knife Sharpening Tool for Dull Knives Scissors Chef Knives Non-Slip Base Ergonomic Handle Red
Admygo£4.3111 rev
RBan1986 Rolling Knife Sharpener for Kitchen KnivesStrong Magnetic Base Angle with 15 to 20 TypeDurable Diamond Whetstone Fast Sharpening for Knives & Fine Polishing for All Blades Wood
RBan1986£35.5850 rev
Vigvitfur 4-in-1 Kitchen Knife Sharpener Professional Grade with Tungsten Steel Ceramic Slots Scissor Sharpening Black Red Removable Grinding Head
vigvitfur£4.6697 rev
Pietuley Knife Sharpener 7-in-1 Professional Knives Sharpener for Serrated Ceramic Knife Scissor Sharpener UK Japanese Knife Blade Manual Sharpening Tool Essentials Kitchen Gadgets (Black)
Pietuley£20.41138 rev
Trending
90-day click momentumVigvitfur 4-in-1 Kitchen Knife Sharpener Professional Grade with Tungsten Steel Ceramic Slots Scissor Sharpening Black Red Removable Grinding Head (red 4)
vigvitfur£4.423.7★
Sharp Knife Sharpener - 3 Stage Professional Kitchen Knife Sharpening Tool for Dull Knives Scissors Chef Knives Non-Slip Base Ergonomic Handle Red
Admygo£4.314.1★
Vigvitfur 4-in-1 Kitchen Knife Sharpener Professional Grade with Tungsten Steel Ceramic Slots Scissor Sharpening Black Red Removable Grinding Head
vigvitfur£4.663.7★
RBan1986 Rolling Knife Sharpener for Kitchen KnivesStrong Magnetic Base Angle with 15 to 20 TypeDurable Diamond Whetstone Fast Sharpening for Knives & Fine Polishing for All Blades Wood
RBan1986£35.583.8★
ACCUSHARP Knife Sharpner Blue & White
ACCUSHARP£11.104.6★
What buyers say about knife sharpeners
What buyers praise and complain about, mined from review topics.What buyers love
“gets knives very sharp”
“Easy to Find and Use”
“Excellent product”
“Good value”
“it actually works as advertised”
“Does the job well”
“The design is sturdy”
“The quality looks durable and reliable”
“compatible size”
“The grip and using is easy”
What buyers complain about
“the any sharp is very small”
“My knives are not of fantastic quality”
“dont last”
“Barely effective”
“Not fit for purpose”
“A little expensive”
“Pain to use it”
“Please dont bother its nothing like advertised”
“Took me a bit of time to get it fixed and working”
“cheap crap plastic absolutely stay away”
Top return reasons
Common questions
- Is knife sharpeners profitable to sell on Amazon United Kingdom?
- The niche generates £1.9M/yr across 22 tracked products. 3 of 5 products launched in the last 360 days are still selling. 90-day search growth is -18.3%. Flapen's verdict: Worth a look (59/100).
- How competitive is the knife sharpeners niche?
- 16 brands and 59 sellers compete. The top 5 products take 70% of clicks and top 5 brands hold 67% of demand.
- What do buyers complain about in knife sharpeners?
- Top complaints mined from reviews: Sharpness, Quality-Overall, Durability. The return rate is 0.6%.
- When does demand for knife sharpeners peak?
- Demand peaks in Jan–Nov–Dec; the busiest month runs 2.6× the quietest.
- What does it cost to enter the knife sharpeners niche?
- Listings span £4.31–£115.48; the average listing price is £16.12 (sweet spot $15–$100). The average incumbent carries 17,514 reviews — the moat a new listing must climb.