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Updated June 2026

Top 5 Pulse Oximeters
for Asthma

How pulse oximetry helps in asthma: SpO₂ gives objective information that symptoms alone cannot. A patient may feel severely distressed with SpO₂ of 96% (reassuring — can use inhaler and wait) vs feeling mildly symptomatic with SpO₂ of 89% (emergency — go to ER now). This objective data prevents both unnecessary ER visits and dangerously delayed care.

HR
HealthRankings TeamExpert-reviewed & independently tested
Products tested5 top picks
UpdatedJune 2026
OUR #1 PICK

The one we’d actually recommend.

The Oxiline Pulse XS Pro delivers configurable SpO₂ alarm capability, large OLED display, and Bluetooth data logging at the best value price for asthma home monitoring. For familie…

8.8/10Overall score
$89Starting price
TOP PICK2026
#1 PICK

Oxiline Pulse XS Pro

Starts at$89
See details →

Category winners.

Best performer in each evaluation category.

Best OverallOxiline Pulse XS Pro8.8/10 scoreBest ValueZacurate Pro Series 500DL$20 starting priceRunner-upMasimo MightySat Rx9.6/10 overall

All 5 ranked.

#1
Best Overall

Oxiline Pulse XS Pro

Connected

The Oxiline Pulse XS Pro delivers configurable SpO₂ alarm capability, large OLED display, and Bluetooth data logging at the best value price for asthma home monitoring. For families managing asthma where cost-per-device matters — multiple household members or children who might lose/damage devices — the Oxiline offers strong accuracy within ±2% at a fraction of premium prices.

What we loved

  • Configurable SpO₂ alarm
  • Large OLED — easy to read during distress
  • Bluetooth data logging
  • Excellent value
  • Reliable in normal-to-moderate compromise
  • Good for home asthma action plan
  • Less accurate during severe compromise
  • No continuous monitoring
  • No pediatric probe

What to know

  • Less accurate during severe compromise
  • No continuous monitoring
  • No pediatric probe
8.8/10
★★★★☆
Price
$89
Read full review
#2
#2 Pick

Masimo MightySat Rx

FDA ClearedConnected

During an asthma attack, peripheral vasoconstriction and rapid breathing can cause standard pulse oximeters to produce unreliable readings. The Masimo MightySat's SET technology is specifically designed to maintain accuracy during motion, poor perfusion, and respiratory compromise — the exact conditions present during an asthma attack. Customizable SpO₂ alarm (set your personal threshold) alerts you before dangerous desaturation occurs. Respiration rate measurement provides additional clinical data. FDA Class II cleared.

What we loved

  • SET technology — accurate during respiratory compromise
  • Customizable SpO₂ alarm threshold
  • Respiration rate — additional asthma data
  • Bluetooth trending for physician review
  • Accurate during motion (breathing effort)
  • FDA Class II cleared
  • Premium price ($199)
  • Requires app for full features

What to know

  • Premium price ($199)
  • Requires app for full features
9.6/10
★★★★★
Price
$199
Read full review
#3
#3 Pick

Zacurate Pro Series 500DL

FDA ClearedConnected

For patients with mild-to-moderate controlled asthma who need a reliable spot-check device for their asthma action plan green/yellow/red zone decisions, the Zacurate 500DL provides accurate SpO₂ readings within ±2% at the lowest price in our review. Simple one-button operation, bright display, and FDA cleared accuracy are the essentials without premium features.

What we loved

  • FDA cleared accuracy
  • ±2% accuracy — adequate for action plan decisions
  • Simple one-button operation
  • Bright display — easy to read
  • Most affordable
  • Good for mild-moderate asthma monitoring
  • No alarm capability
  • No Bluetooth
  • No continuous monitoring
  • Less accurate during severe attacks

What to know

  • No alarm capability
  • No Bluetooth
  • No continuous monitoring
  • Less accurate during severe attacks
8.2/10
★★★★☆
Price
$20
Read full review
#4
#4 Pick

Nonin Model 3230

Connected

The Nonin 3230 with its pediatric finger sensor is the most accurate pulse oximeter for children with asthma — critical since children's oximetry is notoriously prone to motion artifact from crying and fidgeting. Nonin's PureLight technology maintains accurate readings in pediatric patients. Bluetooth to the Nonin Connect app with customizable alarms for SpO₂ and heart rate makes it ideal for parents monitoring children during asthma attacks.

What we loved

  • Pediatric sensor option — accurate for children
  • Nonin PureLight accuracy — best for kids
  • Customizable SpO₂ and HR alarms
  • Bluetooth to Nonin Connect app
  • Used by pediatric nurses
  • Most accurate pediatric oximeter available
  • Higher price
  • Requires separate pediatric probe
  • More clinical than consumer-friendly packaging

What to know

  • Higher price
  • Requires separate pediatric probe
  • More clinical than consumer-friendly packaging
9.4/10
★★★★★
Price
$299
Read full review
#5
#5 Pick

Wellue O2Ring Gen 2

For patients with exercise-induced bronchoconstriction, the Wellue O2Ring provides continuous SpO₂ monitoring during exercise without the interference of a fingertip clip. The ring form stays securely during movement, vibrates silently when SpO₂ drops, and records the entire exercise session. Post-exercise review shows exactly when SpO₂ dipped and by how much — objective data for physician discussions about pre-exercise bronchodilator timing.

What we loved

  • Continuous monitoring during exercise
  • Ring stays on during movement — no clip displacement
  • Silent vibration alarm
  • Records entire exercise session
  • Post-exercise SpO₂ trend review
  • 12-hour battery
  • Less accurate than fingertip at very low SpO₂
  • Single size ring
  • Not ideal for acute attack monitoring

What to know

  • Less accurate than fingertip at very low SpO₂
  • Single size ring
  • Not ideal for acute attack monitoring
9.0/10
★★★★★
Price
$160
Read full review

Which one is right for you?

Our recommendation depends on what you need most.

For most peopleRecommended: Oxiline Pulse XS Pro

Top scores across the metrics that matter most — accuracy, build, and ease of use.

Read review →
For tech-savvy usersRecommended: Masimo MightySat Rx

Reliable wireless sync, deeper analytics, and integrations with health apps.

Read review →
For advanced or clinical needsRecommended: Nonin Model 3230

Adds richer signals — EKG documentation, physician sharing, or clinical-grade testing.

Read review →
For budget-conscious shoppersRecommended: Zacurate Pro Series 500DL

Solid daily-use performance at the lowest price in our lineup.

Read review →

Questions, answered.

How did HealthRankings choose these pulse oximeters for asthma monitoring?

Our editorial team independently researches, tests, and evaluates products using a weighted scoring methodology. We assess accuracy, ease of use, value for money, and category-specific criteria relevant to each condition. Every product is scored on a 10-point scale, and only the top 5 make our final list.

We buy every product at retail — no manufacturer samples — and our medical reviewers have no financial relationship with any brand we cover.

How often are these rankings updated?

We update our rankings at least once per quarter, and immediately when a significant new product launches or when we discover issues with a previously ranked product. Our current rankings were last verified in April 2026.

If a product is discontinued, recalled, or its price changes significantly, we update the listing within one business day.

Is the #1 pick always the best choice for everyone?

Not necessarily. Our #1 pick (Masimo MightySat Rx) scored highest overall, but the best product for you depends on your specific needs, budget, and preferences. For example, if budget is your primary concern, a lower-ranked product with a better value score might be the better choice.

We recommend reading through all 5 reviews and paying attention to the "What to know" sections to find the best fit for your situation.

Are these products covered by insurance or HSA/FSA?

Many health monitoring devices and home testing kits qualify for HSA (Health Savings Account) and FSA (Flexible Spending Account) reimbursement. However, coverage varies by plan and product category. We recommend checking with your insurance provider or benefits administrator before purchasing.

Some products in our list may also be partially covered by Medicare or Medicaid depending on your diagnosis and prescription.

Can I return a product if it doesn't work for me?

Return policies vary by retailer and manufacturer. Most Amazon purchases can be returned within 30 days. Many manufacturers offer satisfaction guarantees ranging from 30 days to 1 year. Check the specific return policy before purchasing.

If a product is defective, most manufacturers will replace it under warranty regardless of the retailer's return window.

Should I consult my doctor before using these products?

Yes — we always recommend discussing new health monitoring devices or tests with your healthcare provider, especially if you have a diagnosed condition. Your doctor can help you understand your results, set appropriate monitoring schedules, and integrate home monitoring data into your overall treatment plan.

These products are designed to supplement — not replace — professional medical care.

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Medical disclaimer:Rankings are for general information only and are not medical advice. Always follow your clinician's guidance. Read full disclaimer