sayo device
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible1.0%return rate — above 5% kills the launch gate
Avg price
Incredible£24.03avg listing price — sweet spot $15–$100
Price range
Great£12.30–£32.75cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Great389avg incumbent reviews — the moat a new listing must climb
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Conversion
Okay3.2%search→purchase rate — share of searches ending in a sale
Market size
Bad£81K£81K/yr · 105K searches
Growth
Bad-39.8%90-day search growth — must beat 0% to launch
Competition
Bad97%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon United Kingdom niche tracking, sayo device is a £81K/yr Amazon United Kingdom market (105K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 38/100.
Data updated Jul 21, 2026 · scored weekly · How we score niches
sayo device market data
- Units sold / yr
- 3K–4K
- avg 500–750/product
- Revenue / yr
- £72K–£96K
- units × avg price
- Conversion rate
- 3.2%
- Avg BSR
- #84
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 33%
- Out of stock
- 4.6%
- Avg brand age
- 25 months
- Avg seller age
- 275 days
Competition & brand share
The top 5 products capture 97% of clicks — a locked-up shelf that new listings rarely crack.Brands
4 rising
Sellers
4
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
97%
Top 20: 100%
Open market
0%
- SAYODEVICE49%
- BTXETUEL41%
- SinLoon7%
- XMSJSIY3%
Demand
Weekly Amazon search volume, last 12 weeks — -39.8% search growth over the last 90 days.Top sayo device search terms
- sayo device70K/yr
- sayo device geometry dash11K/yr
- sayodevice8K/yr
- sayo4K/yr
- osu keypad4K/yr
- geometry dash keyboard3K/yr
- sayo device o3c6K/yr
Top sayo device 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 6 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
BTXETUEL with SayoDevice O3C OSU Keyboard with Quick Trigger Hall Switch Magnetic Linear Switch Button and Screen Copy Paste Shotcut Macro Hotswap Mini
BTXETUEL£27.614.6★1,115 rev
BTXETUEL SayoDevice OSU O3C Quick Release Magnetic Linear Switches with Knob and Display Copy Paste Shotcut Mini Macro Hotswap Keyboard
SAYODEVICE£28.834.7★1,026 rev
SAYODEVICE O3C Rapid Trigger Hall Effect Keyboard Suitable for OSU and Geometry Dash Rhythm Game Macro Keypad with Magnetic Linear Switches (Black Gateron KS-20 White Switch)
SAYODEVICE£32.754.5★44 rev
SAYODEVICE O3C Rapid Trigger Hall Effect Keyboard Suitable for OSU and Geometry Dash Rhythm Game Macro Keypad with Magnetic Linear Switches (Silvery Outemu Pink Switch)
SAYODEVICE£29.764.7★93 rev
SinLoon Mini Programmable Mechanical Keyboard 3 Keys & 1 Knob with Macro Shortcuts PC Setup for Multi-Device Use | Portable Hot-Swappable Macro Pad for Gaming Office Editing
SinLoon£12.963.6★53 rev
Newest
by launch date
XMSJSIY Mini 3 Key Keypad Mechanical Keyboard One Handed Hot Key with Knob
XMSJSIY£12.303 rev
SinLoon Mini Programmable Mechanical Keyboard 3 Keys & 1 Knob with Macro Shortcuts PC Setup for Multi-Device Use | Portable Hot-Swappable Macro Pad for Gaming Office Editing
SinLoon£12.9653 rev
SAYODEVICE O3C Rapid Trigger Hall Effect Keyboard Suitable for OSU and Geometry Dash Rhythm Game Macro Keypad with Magnetic Linear Switches (Black Gateron KS-20 White Switch)
SAYODEVICE£32.7544 rev
SAYODEVICE O3C Rapid Trigger Hall Effect Keyboard Suitable for OSU and Geometry Dash Rhythm Game Macro Keypad with Magnetic Linear Switches (Silvery Outemu Pink Switch)
SAYODEVICE£29.7693 rev
BTXETUEL with SayoDevice O3C OSU Keyboard with Quick Trigger Hall Switch Magnetic Linear Switch Button and Screen Copy Paste Shotcut Macro Hotswap Mini
BTXETUEL£27.611,115 rev
Trending
90-day click momentumXMSJSIY Mini 3 Key Keypad Mechanical Keyboard One Handed Hot Key with Knob
XMSJSIY£12.303.7★
SAYODEVICE O3C Rapid Trigger Hall Effect Keyboard Suitable for OSU and Geometry Dash Rhythm Game Macro Keypad with Magnetic Linear Switches (Silvery Outemu Pink Switch)
SAYODEVICE£29.764.7★
SinLoon Mini Programmable Mechanical Keyboard 3 Keys & 1 Knob with Macro Shortcuts PC Setup for Multi-Device Use | Portable Hot-Swappable Macro Pad for Gaming Office Editing
SinLoon£12.963.6★
SAYODEVICE O3C Rapid Trigger Hall Effect Keyboard Suitable for OSU and Geometry Dash Rhythm Game Macro Keypad with Magnetic Linear Switches (Black Gateron KS-20 White Switch)
SAYODEVICE£32.754.5★
BTXETUEL SayoDevice OSU O3C Quick Release Magnetic Linear Switches with Knob and Display Copy Paste Shotcut Mini Macro Hotswap Keyboard
SAYODEVICE£28.834.7★
What buyers say about sayo device
What buyers praise and complain about, mined from review topics.What buyers love
“Programmable mini macro keyboard with good build quality”
“it is definitely worth it”
“The keys feel satisfying to use”
“won't break easily”
“it works really well with no compatibility issues”
“It is very easy to use”
“it looks really good”
“Best purchase I've ever made for geometry dash”
“Well made sticks to most surfaces”
“Excellent product, great software”
What buyers complain about
“Did not work”
“Bit expensive to be honest”
“doesnt even look like advertised”
“This small”
“The clicky noise is very annoying for me”
“Bad quality,was not working and was returned”
“Your also not able to select a color”
“the let down is the software”
“the device runs with severe delay”
Top return reasons
Common questions
- Is sayo device profitable to sell on Amazon United Kingdom?
- The niche generates £81K/yr across 6 tracked products. 0 of 4 products launched in the last 360 days are still selling. 90-day search growth is -39.8%. Flapen's verdict: Skip it (38/100).
- How competitive is the sayo device niche?
- 4 brands and 4 sellers compete. The top 5 products take 97% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in sayo device?
- Top complaints mined from reviews: Functionality-Overall, Value For Money, Advertised Vs Actual Product. The return rate is 1.0%.
- What does it cost to enter the sayo device niche?
- Listings span £12.30–£32.75; the average listing price is £24.03 (sweet spot $15–$100). The average incumbent carries 389 reviews — the moat a new listing must climb.