Is dario profitable to sell on Amazon United States?

The niche generates $10.4M/yr across 3 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +8.2%. Flapen's verdict: Launch it (56/100).

How competitive is the dario niche?

2 brands and 3 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in dario?

Top complaints mined from reviews: Durability, Connectivity-Overall, Measurement/Reading Accuracy. The return rate is 1.3%.

When does demand for dario peak?

Demand peaks in Apr–May–Jun; the busiest month runs 2.2× the quietest.

What does it cost to enter the dario niche?

Listings span $45.17–$94.72; the average listing price is $75.69 (sweet spot $15–$100). The average incumbent carries 4,577 reviews — the moat a new listing must climb.

dario

Launch it

A $10.4M/yr market growing +8.2% this quarter with returns at 1.3% — clears our launch bar.

Market size

Incredible$10.4M

$10.4M/yr · 2.2M searches

Quality gap

Incredible3.0★

avg incumbent rating — lower means beatable quality

Price range

Incredible$45.17–$94.72

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

Returns

Great1.3%

return rate — above 5% kills the launch gate

Avg price

Great$75.69

avg listing price — sweet spot $15–$100

Conversion

Good6.3%

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

Growth

Okay+8.2%

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

Review moat

Bad4,577

avg incumbent reviews — the moat a new listing must climb

Competition

Bad100%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

Signals Quality Gap High Price

According to Flapen's Amazon United States niche tracking, dario is a $10.4M/yr Amazon United States market (2.2M searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Apr–May–Jun. Verdict: Launch it — 56/100.

Data updated Jul 10, 2026 · scored weekly · How we score niches

dario market data

Units sold / yr: 100K–125K; avg 25,000–30,000/product
Revenue / yr: $7.6M–$9.5M; units × avg price
Conversion rate: 6.3%
Avg BSR: #1
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 0.0%
Avg brand age: 46 months
Avg seller age: 153 days

Competition & brand share

The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.

Brands

2 falling

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

100%

Top 20: 100%

Open market

Lingo82%
Stelo18%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +8.2% search growth over the last 90 days.

Peak months: Apr, May, Jun · busiest ÷ quietest = 2.2×

Open Trend

Top dario search terms

continuous glucose monitor648K/yr +7.7%2.8% conv.
cgm glucose monitor357K/yr +11.6%3.2% conv.
cgm246K/yr +20.9%3.1% conv.
lingo glucose monitor266K/yr -11.2%14.2% conv.
lingo continuous glucose monitor72K/yr +145.7%15.8% conv.
lingo134K/yr +27.9%13.2% conv.
continuous glucose monitor kit41K/yr +69.0%2.3% conv.
cgm sensors without prescription34K/yr -34.3%1.6% conv.
continuous glucose monitoring39K/yr +2.4%1.6% conv.
continuous glucose monitoring system79K/yr -53.6%1.7% conv.

All search terms

Top dario 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 3 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Lingo Continuous Glucose Monitor (CGM). Made by Abbott. Optimize Your Nutrition with Real-time Glucose Data & Insights. 1 Lingo biosensor lasts up to 14 Days*. Works with iOS and Android. US Only.

Lingo$45.173.0★4,783 rev

Stelo Glucose Biosensor & App by Dexcom - A Leader in Continuous Glucose Monitoring (CGM). 24/7 Tracking & Personalized Insights to Reveal Patterns. 2-Pack (Up to 15 Days Each). iOS & Android.

Stelo$94.722.9★4,165 rev

Lingo Continuous Glucose Monitor (CGM) & App (Pack of 2). Made by Abbott. Optimize Your Nutrition with Real-time Glucose Data & Insights. 1 Lingo biosensor lasts up to 14 Days*. Works with iOS and Android. US Only.

Lingo$87.173.0★4,783 rev

Newest

by launch date

Lingo$87.174,783 rev

9mo ago

Stelo Glucose Biosensor & App by Dexcom - A Leader in Continuous Glucose Monitoring (CGM). 24/7 Tracking & Personalized Insights to Reveal Patterns. 2-Pack (Up to 15 Days Each). iOS & Android.

Stelo$94.724,165 rev

1y ago

Lingo Continuous Glucose Monitor (CGM). Made by Abbott. Optimize Your Nutrition with Real-time Glucose Data & Insights. 1 Lingo biosensor lasts up to 14 Days*. Works with iOS and Android. US Only.

Lingo$45.174,783 rev

1y ago

What buyers say about dario

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

What buyers love

Health Monitoring12%

“Great tool for your health”

Ease Of Use10%

“Easy to put on”

Blood Sugar Level8%

“improve my sugar levels”

Sensor4%

“Seems that some sensors are accurate”

Quality-Overall4%

“Other than that the device itself has been good”

Value For Money4%

“Saves lots of money”

Accuracy-Overall4%

“Accurate and affordable”

Instructions/User Manual/Troubleshooting3%

“The instructions are clear”

Efficiency3%

“Works on occasion”

Ease Of Application3%

“Easy to apply”

What buyers complain about

Durability15%

“Broken after 2 days”

Connectivity-Overall14%

“Constantly disconnects”

Measurement/Reading Accuracy10%

“Absolutely inaccurate”

Functionality-Overall9%

“Did not work”

Value For Money6%

“They are expensive”

Blood Sugar Level6%

“it raises blood sugar”

Accuracy-Overall6%

“Not even close to accurate”

Quality-Overall5%

“Bad quality”

Compatibility-Overall4%

“1 said 'incompatible'”

Software/Application3%

“App was not good”

Top return reasons

Connectivity-Overall20%

Functionality-Overall20%

Compatibility-Overall13%

Durability8%

Measurement/Reading Accuracy8%

Adhesion/Stickiness6%

Software/Application4%