Is pulse oximeter profitable to sell on Amazon United States?

The niche generates $21.0M/yr across 15 tracked products. 90-day search growth is -11.3%. Flapen's verdict: Worth a look (52/100).

How competitive is the pulse oximeter niche?

9 brands and 18 sellers compete. The top 5 products take 72% of clicks and top 5 brands hold 92% of demand.

What do buyers complain about in pulse oximeter?

Top complaints mined from reviews: Measurement/Reading Accuracy, Accuracy-Overall, Functionality-Overall. The return rate is 1.6%.

When does demand for pulse oximeter peak?

Demand is steady year-round — the busiest month runs 1.3× the quietest.

What does it cost to enter the pulse oximeter niche?

Listings span $7.91–$198.01; the average listing price is $28.47 (sweet spot $15–$100). The average incumbent carries 40,213 reviews — the moat a new listing must climb.

pulse oximeter

Worth a look

Shows a $21.0M/yr market, but a deep review moat (40,213 avg reviews) keeps it on the watch list.

Market size

Incredible$21.0M

$21.0M/yr · 5.6M searches

Conversion

Incredible13.2%

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

Avg price

Incredible$28.47

avg listing price — sweet spot $15–$100

Returns

Great1.6%

return rate — above 5% kills the launch gate

Price range

Okay$7.91–$198.01

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Competition

Bad72%

top-5 click share — a locked-up shelf

Growth

Bad-11.3%

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

Brand share

Bad92%

top-5 brand share — brand-locked demand

Review moat

Bad40,212.67

avg incumbent reviews — the moat a new listing must climb

According to Flapen's Amazon United States niche tracking, pulse oximeter is a $21.0M/yr Amazon United States market (5.6M searches/yr). The top 5 brands hold 92% of demand. Verdict: Worth a look — 52/100.

Data updated Jul 14, 2026 · scored weekly · How we score niches

pulse oximeter market data

Units sold / yr: 800K–1.0M; avg 50,000–60,000/product
Revenue / yr: $22.8M–$28.5M; units × avg price
Conversion rate: 13.2%
Avg BSR: #14
Page quality: 0%
Prime: 100%
Sponsored: 93%
Out of stock: 0.0%
Avg brand age: 43 months
Avg seller age: 169 days

Competition & brand share

The top 5 products capture 72% of clicks — a locked-up shelf that new listings rarely crack.

Brands

9 falling

Sellers

Top-5 brand share

92%

Top 20: 100%

Top-5 click share

72%

Top 20: 100%

Open market

Zacurate55%
HealthTree19%
Innovo8%
Vibeat7%
Alecaremed3%
HOLFENRY3%
Open — no brand owns it (3 brands, 5%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -11.3% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.3×

Open Trend

Top pulse oximeter search terms

pulse oximeter2.1M/yr -11.7%12.2% conv.
oxygen monitor fingertip729K/yr -9.6%14.9% conv.
pulse oximeter medical grade670K/yr -11.6%10.4% conv.
oximeter481K/yr -13.0%9.3% conv.
pulse ox293K/yr -4.3%10.4% conv.
pulse oximeter fingertip271K/yr -22.1%13.5% conv.
oximeter finger with pulse fda approved153K/yr -7.6%12.4% conv.
o2 pulse oximeter finger159K/yr -15.0%11.7% conv.
oxygen monitor108K/yr -28.1%7.5% conv.
oximetro85K/yr +2.2%2.3% conv.

All search terms

Top pulse oximeter 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 15 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★237,316 rev

Zacurate 500BL Fingertip Pulse Oximeter Blood Oxygen Saturation Monitor with Batteries Included (Navy Blue)

Zacurate$12.244.6★124,770 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★11,700 rev

Innovo Deluxe iP900AP Fingertip Pulse Oximeter Blood Oxygen Saturation Monitor with Alarm Plethysmograph and Perfusion Index

Innovo$33.434.7★50,460 rev

Healthtree JKS50B Pulse Oximeter Fingertip - Blood Oxygen monitor Fingertip with Perfusion Index Fast 5-8s Reading Large OLED Display SpO2 & Heart Rate monitor for Home Sports Travel (Includes Batteries & Lanyard)

HealthTree$9.814.5★12,613 rev

Newest

by launch date

Vibeat Fingertip Pulse Oximeter Blood Oxygen Saturation Monitor Finger O2 Sensor with Pulse Rate Batteries and Lanyard Included Black

Vibeat$8.757,349 rev

1y ago

Finger Pulse Oximeter Larger Display Blood Oxygen Monitor with Batteries and Lanyard Included Fingertip Pulse Oximeter Color: Navy Blue

Home studio collection$7.911,598 rev

2y ago

Wellue O2Ring-S Oxygen Monitor with Vibration Reminder Bluetooth Pulse Oximeter Tracks SPO2 and Pulse Rate 24 hrs Battery Life 4*10 Hours Built-in Memory Rechargeable Pulse Ox with Free PC & APP

Wellue$198.01354 rev

2y ago

HOLFENRY Pulse Oximeter Fingertip - Large Display Oxygen Monitor Fingertip with Fast 5-8s Reading for SpO2/Heart Rate/PI Accurate Pulse Ox for Home/Sports/Travel Batteries & Lanyard Included

HOLFENRY$9.834,546 rev

3y ago

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$20.772,696 rev

3y ago

What buyers say about pulse oximeter

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

What buyers love

Ease Of Use18%

“Easy to carry”

Efficiency14%

“It is efficient”

Quality-Overall12%

“Very good quality arrived on time”

Accuracy-Overall12%

“Accurate and easy”

Advertised Vs Actual Product11%

“Exactly as advertised”

Value For Money10%

“Cheap price”

Health Monitoring3%

“Easy to check your oxygen levels”

Battery Life1%

“Battery lasts a long time”

Display-Overall1%

“Easy to read display”

Heart Health1%

“Perfect for heart rate”

What buyers complain about

Measurement/Reading Accuracy15%

“Poor accuracy”

Accuracy-Overall14%

“NOT ACCURATE”

Functionality-Overall14%

“Absolutely does not function properly”

Durability9%

“Didn't last”

Battery Life6%

“low battery life”

Quality-Overall6%

“Its our fault for purchasing such a low quality item”

Value For Money4%

“Not Worth It”

Size-Overall3%

“Seems too big”

Ease Of Use3%

“Extremely difficult to operate”

Display-Overall2%

“The display was a little small”

Top return reasons

Measurement/Reading Accuracy32%

Functionality-Overall22%

Accuracy-Overall10%

Advertised Vs Actual Product6%

Display-Overall4%

Size-Overall4%

Value For Money3%

Quality-Overall1%