Is continuous glucose monitor profitable to sell on Amazon United Kingdom?

The niche generates £505K/yr across 13 tracked products. 3 of 4 products launched in the last 360 days are still selling. 90-day search growth is +10.6%. Flapen's verdict: Worth a look (57/100).

How competitive is the continuous glucose monitor niche?

9 brands and 29 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 89% of demand.

What do buyers complain about in continuous glucose monitor?

Top complaints mined from reviews: Value For Money, Durability, Functionality-Overall. The return rate is 1.9%.

When does demand for continuous glucose monitor peak?

Demand peaks in Jan; the busiest month runs 1.8× the quietest.

What does it cost to enter the continuous glucose monitor niche?

Listings span £32.66–£98.39; the average listing price is £49.83 (sweet spot $15–$100). The average incumbent carries 111 reviews — the moat a new listing must climb.

continuous glucose monitor

Worth a look

Shows beatable incumbent ratings (3.6★), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Quality gap

Incredible3.6★

avg incumbent rating — lower means beatable quality

Price range

Incredible£32.66–£98.39

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

Review moat

Great111.15

avg incumbent reviews — the moat a new listing must climb

Avg price

Great£49.83

avg listing price — sweet spot $15–$100

Returns

Great1.9%

return rate — above 5% kills the launch gate

Market size

Good£505K

£505K/yr · 310K searches

Conversion

Okay3.3%

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

Growth

Okay+10.6%

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

Brand share

Okay89%

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

Competition

Bad71%

top-5 click share — a locked-up shelf

Signals Low Review Barrier Quality Gap

According to Flapen's Amazon United Kingdom niche tracking, continuous glucose monitor is a £505K/yr Amazon United Kingdom market (310K searches/yr). The top 5 brands hold 89% of demand. Demand peaks in Jan. Verdict: Worth a look — 57/100.

Data updated Jul 24, 2026 · scored weekly · How we score niches

continuous glucose monitor market data

Units sold / yr: 6K–8K; avg 250–500/product
Revenue / yr: £299K–£399K; units × avg price
Conversion rate: 3.3%
Avg BSR: #65
Page quality: 0%
Prime: 85%
Sponsored: 69%
Out of stock: 2.1%
Avg brand age: 35 months
Avg seller age: 175 days

Competition & brand share

The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.

Brands

9 rising

Sellers

Top-5 brand share

89%

Top 20: 100%

Top-5 click share

71%

Top 20: 100%

Open market

Lingo38%
sinocare24%
SIBIONICS14%
LIMDO7%
buut b6%
Generic4%
Open — no brand owns it (3 brands, 7%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +10.6% search growth over the last 90 days.

Peak months: Jan · busiest ÷ quietest = 1.8×

Open Trend

Top continuous glucose monitor search terms

continuous glucose monitor102K/yr +25.6%1.3% conv.
cgm - continuous glucose monitor49K/yr +17.3%1.8% conv.
cgm35K/yr +17.6%2.1% conv.
lingo glucose monitor20K/yr +0.6%8.8% conv.
lingo22K/yr -5.5%4.3% conv.
glucose monitor patch17K/yr -5.7%0.4% conv.
cgm glucose monitor9K/yr +11.4%1.8% conv.
cgm monitor8K/yr +7.5%0.8% conv.
continuous glucose monitoring7K/yr +3.4%0.7% conv.
diabetic sensor6K/yr +7.1%1.8% conv.

All search terms

Top continuous glucose monitor 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 13 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Lingo Continuous Glucose Monitor (CGM) Biosensor & App. Build Healthier Habits with Real-time Glucose Data & Insights. Made by Abbott. Works with iOS and Android. UK Only.

Lingo£43.103.3★355 rev

SIBIONICS GS3 Continuous Glucose Monitoring (CGM) with Free Overpatch 14-Day Wearable Sensor with Glucose Alarm & AI Meal Analysis Real-Time Spike Insights NFC Connection iOS & Android

SIBIONICS£43.403.4★41 rev

Dexcom ONE+ Sensor Starter Bundle (1 Sensor + 1 Applicator) CGM Lasts up to 10 days Smaller Faster

LIMDO£49.654.2★58 rev

Pack of 2_Abbott Freestyle Libre 2 Sensor for diabetes monitoring CGM for UK

buut b£98.393.8★153 rev

Sinocare iCan CGM Continuous Glucose Monitor 15 Days Wear-life & IP28 Every 3 Minutes Output Test Value Via iCan CGM App Pack of 1 Sensor & Transmitter

sinocare£35.363.4★141 rev

Newest

by launch date

SIBIONICS GS3 Continuous Glucose Monitoring (CGM) with Free Overpatch 14-Day Wearable Sensor with Glucose Alarm & AI Meal Analysis Real-Time Spike Insights NFC Connection iOS & Android

SIBIONICS£43.4041 rev

4mo ago

sinocare iCan i3 Continuous Glucose Monitor 15 Day Wear-life CGM Wearable Blood Glucose Tracker for Diabetes Monitoring Output Values via iCan CGM App for UK Pack of 1 Sensor & Transmitter

sinocare£32.6614 rev

4mo ago

Sinocare iCan i3 CGM 15-Day Monitoring with iCan CGM APP

sinocare£33.5523 rev

5mo ago

Abbott Freestyle Libre 2 Plus Sensor CGM Sensor for Continuous Glucose Monitoring 15Day Wear

Abbott£48.4222 rev

5mo ago

Pack of 2_Abbott Freestyle Libre 2 Sensor for diabetes monitoring CGM for UK

buut b£98.39153 rev

1y ago

What buyers say about continuous glucose monitor

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

What buyers love

Ease Of Use21%

“Very easy to use”

Quality-Overall13%

“High quality and perfect monitor”

Value For Money11%

“Good value for money”

Health Monitoring6%

“Very good health tech”

Efficiency6%

“Ive been really impressed with how well it performs”

Comfort-Overall3%

“Comfortable”

Connectivity-Overall3%

“Worked well, good connectivity”

Adhesion/Stickiness3%

“no signs of the adhesive failing”

Durability3%

“Reliability”

Blood Sugar Level2%

“it helps me know what I eat will get high glucose to prevent diabetes”

What buyers complain about

Value For Money23%

“Waste of money”

Durability15%

“Easily comes off”

Functionality-Overall11%

“device not working properly anyway”

Connectivity-Overall7%

“Poor signal connection”

Quality-Overall7%

“indicating poor quality control”

Compatibility-Overall4%

“Android compatibility issues”

Blood Sugar Level3%

“spent months pricking fingers to take blood sugar levels”

Adhesion/Stickiness3%

“the adhesion is absolutely rubbish”

Measurement/Reading Accuracy2%

“Inconsistent”

Ease Of Use2%

“so could not use it”

Top return reasons

Functionality-Overall30%

Defective Material/Parts17%

Durability13%

Connectivity-Overall10%

Adhesion/Stickiness7%

Compatibility-Overall7%