How do I clear the memory once it is full? I have uploaded the data to my phone already.

Once downloaded there is a "dustbin" symbol in the top right of your phone screen to delete the data from the Oximeter

Can results be put on laptop? I have no mobile phone. Also can it be used as a one off for quick oxygen test?

No, as per the information in the description, it's only compatible with Android or iPhone. As for a "quick oxygen test" why would you do that? You would want a fair bit of data over time to average out the readings, because your SPO2 does fluctuate. A quick reading might give unnecessary concern, if it's dipped to say 92% briefly but gone back up to say 98% - this info was relayed to me by NHS 111. You can just as easily buy a cheap oximeter and get the readings from the actual device then write them down. Always work with your healthcare professional. Hope this helps.

How well does this attach to your finger during sleep?

It has rubber inside and fits and stays on finger during sleep. It stays very well and doesn't hurt.

Only getting 6 hours recording on one set of batteries, 8 hours on another set. Says 24 hr Continuous recording? I must have a faulty unit.

I managed to get three 8 hour recordings from one set of batteries.

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⏰ Sleep smarter, not harder—track your pulse and oxygen like a pro!

CLEAR DATA AT A GLANCE - Large, rotating digital LCD ensures you can check your stats comfortably from any angle—no neck twisting needed.
LIGHTWEIGHT PORTABLE - At just 10g with included AAA batteries, it’s the perfect discreet companion for your nightly health monitoring.
PROFESSIONAL SLEEP REPORTS - Get detailed, second-by-second oxygen and heart rate trends to share with your doctor or wellness community.
RECORD ALL NIGHT SYNC ANYTIME - Capture up to 40 hours of uninterrupted blood oxygen & pulse data without needing your phone nearby.
SEAMLESS BLUETOOTH INTEGRATION - Effortlessly upload and analyze your health trends with the free iOS/Android app—no real-time connection required.

The EMAY Sleep Pulse Oximeter offers up to 40 hours of continuous blood oxygen and pulse rate monitoring with a large rotating LCD display. It records data independently and syncs via Bluetooth to a free iOS/Android app for detailed sleep reports and trend analysis, making it an essential tool for proactive health management.

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Manufacturer	EMAY
Part number	EMO-80
Item Weight	10 g
Package Dimensions	9.2 x 8.8 x 5.1 cm; 10 g
Batteries	2 AAA batteries required. (included)
Item model number	EMO-80
Batteries included?	Yes
Batteries Required?	Yes
Battery Cell Type	Alkaline
Battery life	40 Hours

EMAY Sleep Pulse Oximeter with Built-in Recording Capability | Record Continuous Blood Oxygen Levels & Pulse Rate Overnight | Provides Sleep Report & Raw Data

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