Pulse oximeters for spot checks and overnight sleep tracking
Monitor your blood oxygen (SpO₂) and pulse rate with compact, app-connected pulse oximeters designed for use at home, during exercise, while travelling, or throughout the night.
Our New Zealand range features comfortable wearable and ring-style pulse oximeters that continuously record your oxygen levels and pulse while you sleep. Your data automatically syncs to a free companion app, making it easy to review overnight trends and share reports with your healthcare provider.
Enjoy free shipping on orders over $79, with all orders dispatched within 1–2 business days.
Free NZ shipping over $79 · Continuous overnight tracking · App-connected · NZ stock & local support
Continuous overnight tracking
Wearable and ring oximeters that record SpO₂ and pulse through the night, not just a one-off reading.
Free app, iOS & Android
Sync your readings for clear trend graphs and shareable PDF reports you can take to your GP.
Free NZ shipping over $79
Fast nationwide delivery, usually dispatched within 1–2 business days.
NZ stock & local support
Held in New Zealand and backed by a local team you can email any time.
Wellue O2Ring™ Continuous Oxygen Monitor - Wireless Bluetooth Pulse Oximeter & Continuous Sleep Heart Rate Tracker
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Wellue Checkme™ O2 Max Wearable Wrist Pulse Oximeter with Continuous SpO₂ & Heart Rate Monitoring
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Bluetooth Blood Oxygen Monitor with App – Wearable Pulse Oximeter, Heart Rate Monitor & Sleep Tracking
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Three wearable oximeters, side by side
Every model in our range measures continuously and syncs to a free app — so the choice comes down to how you want to wear it, how long the battery needs to last, and whether you want desktop reports to share with a health professional. Current pricing is on each product page.
| Feature | O₂ RingBest seller | Checkme™ O2 MaxLongest battery | Bluetooth Ring MonitorEveryday value |
|---|---|---|---|
| Wear style | Soft finger ring | Wrist unit + ring sensor | Finger ring + wrist strap |
| Measures | SpO₂, pulse, PI | SpO₂, heart rate, movement | SpO₂, pulse, PI |
| Continuous overnight | Yes, every second | Yes, every second | Yes, continuous |
| Alerts | Adjustable vibration | Vibration + sound | Adjustable vibration |
| Battery per charge | One full night (up to ~16h) | Up to 72 hours | Around 12–16 hours |
| App & software | Free app, iOS & Android | iOS, Android + Windows/Mac | iOS, Android + PC |
| Reports | In-app trend reports | PDF & CSV, desktop software | PDF & CSV, printable |
| Best for | Simple, comfortable overnight SpO₂ | Longest battery & sharing reports with a GP or CPAP provider | Everyday and overnight tracking on a budget |
| Details | View O₂ Ring | View Checkme O2 Max | View Ring Monitor |
Specifications are drawn from each product page and may be updated by the manufacturer. Always check the product page for the latest details.
The three main styles of pulse oximeter
“Pulse oximeter” covers a few different device styles. The right one depends on whether you want a quick one-off reading or a full night of continuous data. Our range focuses on the wearable and ring styles built for continuous monitoring.
Fingertip clip oximeter
The familiar clip-on device you press onto a fingertip for a few seconds to read your SpO₂ and pulse. Handy for occasional checks, but it slips off if you move and isn’t designed to wear all night. Widely available for one-off readings.
Wrist wearable oximeter
A small wrist unit paired with a soft ring sensor on your finger. It records SpO₂, heart rate and movement every second through the night, shows readings on an on-wrist display, and stores data on the device — ideal if you want longer battery and reports to share.
Ring / finger-worn oximeter
A soft ring that sits around your finger and monitors continuously without a clip to slip off. Lightweight and comfortable for overnight wear, it syncs to a free app so you can review trends in the morning.
What a pulse oximeter measures — and what the numbers mean
A pulse oximeter shines light through your fingertip to estimate two things at once: your blood oxygen saturation (SpO₂), shown as a percentage, and your pulse rate, in beats per minute. Some models also show a perfusion index (PI), which reflects how strong the signal is at the sensor.
For a healthy adult resting at sea level, SpO₂ usually sits in the 95–100% range. Readings can dip a little during sleep or at altitude. The figures alongside are a general guide only — not a diagnosis.
A few everyday factors can affect accuracy, so it’s worth knowing them:
- Cold hands or poor circulation
- Nail polish or artificial nails
- Movement while the reading is taken
- How well the sensor fits your finger
- Typical resting range (healthy adult)95–100%
- Below usual — worth a mention to your team92–94%
- Low — seek prompt medical advice<92%
A monitor, not a diagnosis. Pulse oximeters are for personal wellness and general monitoring. They don’t diagnose, treat or cure any condition. If you feel unwell, your readings don’t match how you feel, or you have symptoms such as breathlessness or chest tightness, contact your GP or call Healthline on 0800 611 116. A sleep apnoea diagnosis needs a health professional.
How to choose a pulse oximeter
Five quick questions will narrow the range down to the model that fits how you plan to use it.
Spot check or all night?
For the occasional reading, a simple fingertip check is enough. To see trends while you sleep, choose a wearable or ring model that records continuously.
Ring or wrist?
A finger ring is the lightest, most forgettable option for sleep. A wrist unit adds an on-wrist display and, on the Checkme O2 Max, much longer battery.
Do you want reports?
If you’d like to share overnight data with a GP or CPAP provider, pick a model with free desktop software that exports PDF and CSV reports.
Battery & alerts
Longer battery means fewer charges between nights. A gentle vibration alert can nudge you to reposition if your oxygen dips below a level you set.
Phone & computer
All our models pair with a free iOS and Android app. Two also offer free Windows and Mac software if you prefer to review data on a computer.
Made for a range of everyday monitoring needs
A continuous oximeter suits anyone who wants better visibility of their overnight oxygen levels and pulse — whether that’s peace of mind or data to talk through with a health professional.
- People who snore or want to understand their sleep oxygen patterns
- CPAP users checking how their therapy performs overnight
- Active people, travellers and climbers monitoring oxygen at altitude
- Anyone wanting to track SpO₂ and pulse trends over time at home
Managing diabetes too? Our diabetes range and wider monitoring devices sit alongside these oximeters.
Pulse oximeter FAQs
What does a pulse oximeter measure?
It estimates your blood oxygen saturation (SpO₂), shown as a percentage, and your pulse rate in beats per minute. Some models also report a perfusion index (PI), which indicates how strong the reading is at the sensor.
What is a normal blood oxygen level?
For a healthy adult resting at sea level, SpO₂ is usually between 95% and 100%. This is a general guide, not a diagnosis — levels can vary between people and dip slightly during sleep or at altitude. If you feel unwell or a reading doesn’t match how you feel, contact your GP or call Healthline on 0800 611 116.
Can a pulse oximeter detect sleep apnoea?
An overnight oximeter can record dips in your oxygen levels through the night, which some people share with their doctor. On its own it does not diagnose sleep apnoea — a diagnosis needs a health professional, often with a sleep study. Our wearable models let you export a report to take to that conversation.
What’s the difference between a fingertip clip and a wearable oximeter?
A fingertip clip is best for a quick, one-off reading during the day. A wearable or ring oximeter is designed to stay on comfortably and record continuously through the night, so you can see trends rather than a single snapshot. Our range focuses on the wearable and ring styles.
Do these work with my phone?
Yes. Every model pairs over Bluetooth with a free app for both iOS and Android. Two of them also include free Windows and Mac software if you’d rather review your data and print reports on a computer.
How accurate are pulse oximeters?
The O₂ Ring, for example, is rated to within ±2% for SpO₂. Accuracy can be affected by cold hands, poor circulation, nail polish, movement and how the sensor sits on your finger. These devices are for general wellness monitoring and aren’t a substitute for a professional medical assessment.
Is shipping free?
Yes — we offer free shipping on New Zealand orders over $79, usually dispatched within 1–2 business days. Australian orders are shipped but aren’t included in the free-shipping offer.
Wellness Hub
Practical, plain-language guides to help you get the most from at-home SpO₂ monitoring — what a pulse oximeter measures, how fingertip clips compare to wearable and ring-style monitors, and how to make sense of your readings.
Find the right pulse oximeter for you
Comfortable, app-connected monitors for continuous overnight SpO₂ and pulse tracking — with free NZ shipping over $79 and a local team to help.