masimo pulse oximeter
Skip itWeak search conversion (0.3%) — this niche doesn't clear our bar today.
Avg price
Incredible$40.83avg listing price — sweet spot $15–$100
Quality gap
Great4.1★avg incumbent rating — lower means beatable quality
Price range
Great$9.70–$107.83cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Great1.9%return rate — above 6% kills the launch gate
Brand share
Good64%top-5 brand share — brands hold most of the demand
Competition
Okay55%top-5 click share — leaders hold, buyers still browse
Market size
Bad$88K$88K/yr · 742K searches
Review moat
Bad23,922.26avg incumbent reviews — the moat a new listing must climb
Growth
Bad-26.0%90-day search growth — must beat 0% to launch
Conversion
Bad0.3%search→purchase rate — share of searches ending in a sale
Competition
The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them.Brands
23 rising
Sellers
38
Top-5 brand share
64%
Open market
31%
- Zacurate18%
- Lingo18%
- AliveCor11%
- Alecaremed10%
- Innovo7%
- HealthTree5%
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 27 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Zacurate 500 Series Fingertip Pulse Oximeter Blood Oxygen Saturation Monitor with Silicon Cover Batteries and Lanyard Royal Black
Zacurate$21.314.7★237,176 rev
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
KardiaMobile 1-Lead EKG Monitor Medical-Grade FDA-Cleared Personal Heart Monitor Detects Normal AFib & Arrhythmias 30 Second Results Works with Most Smartphones HSA&FSA Eligible
AliveCor$73.844.4★83,182 rev
Alecaremed Pulse Oximeter 4 Color OLED Display Oxygen Monitor Fingertip with 20 Memory Blood Oxygen Saturation Monitor (SpO2) Alarm & Brightness Adjustable Batteries & Lanyard (White)
Alecaremed$20.784.5★2,683 rev
Fingertip Pulse Oximeter Blood Oxygen Saturation Monitor Pulse Ox Heart Rate and Fast Spo2 Reading Oxygen Meter with OLED Screen Included Lanyard and 2 X AAA Batteries
HealthTree$9.704.6★11,576 rev
Newest
by launch date
Blood Glucose Monitor Glucometer Kit with 100 Strips and Lancets Diabetic Testing Kit with Auto Eject No Coding Large Display for Seniors Blood Sugar Testing Kit for Travel & Home Use
CAKRNPS$23.97560 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$87.174,783 rev
Gluview Glucose Projector Clock for Diabetes | FDA Cleared Continuous Glucose Monitor Display for Dexcom & Libre | Nighttime Glucose Tracking Sleep-Friendly Display Real-Time CGM Data Projection
Atúlo Products$97.6637 rev
Adjustable Armband for Lingo Continuous Glucose Monitor CGM Continuous Glucose Monitor System Transmitter Sensor Cover - No More Patches (Black)
MGZNMTY$18.5412 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$94.724,165 rev
Trending
90-day click momentum
Ribili Trackpro 2.0 Sherum Trackpro 2.0 Dotmalls Trackpro 2.0 Hilipert Trackpro 2.0 Shirem Trackpro Fitsenso Smartwatch (Black*2)
maa mma$66.843.2★
LEADER Air Blood Glucose Meter Kit Wireless Transmission to Mobile Device Advanced Triple Sense Technology
Leader$32.273.8★
Blood Glucose Monitor Glucometer Kit with 100 Strips and Lancets Diabetic Testing Kit with Auto Eject No Coding Large Display for Seniors Blood Sugar Testing Kit for Travel & Home Use
CAKRNPS$23.974.3★
KardiaMobile 1-Lead EKG Monitor Medical-Grade FDA-Cleared Personal Heart Monitor Detects Normal AFib & Arrhythmias 30 Second Results Works with Most Smartphones HSA&FSA Eligible
AliveCor$73.844.4★
Gluview Glucose Projector Clock for Diabetes | FDA Cleared Continuous Glucose Monitor Display for Dexcom & Libre | Nighttime Glucose Tracking Sleep-Friendly Display Real-Time CGM Data Projection
Atúlo Products$97.663.6★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -26.0% search growth over the last 90 days.Peak months: Jul, Dec · busiest ÷ quietest = 2.4×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“EASY TO USE”
“The build quality is excellent”
“Works beautifully”
“Accurate and affordable”
“Very affordable”
“As advertised”
“Easy to check your oxygen levels”
“improve my sugar levels”
“Easy-to-follow instructions”
“durable products”
What buyers complain about
“Inconsistent readings”
“Didn't last”
“Did not work”
“NOT ACCURATE”
“Connectivity Issues”
“Very expensive”
“Bad quality”
“Not for diabetics”
“1 said 'incompatible'”
“the app is terrible”