What is the technical accuracy of the oximeter? In percentage

I cannot say, but having talked to a doctor since buying it, I’m not sure it matters. He felt that the reading, as with a digital thermometer, is approximate and best used as a binary indicator: ok or not rather than to get a precise number. The technology behind it is pretty mature and inexpensive, and the differences between this and professional models is probably durability (that is, something that can be used a hundred of times every day).

Can this run an overnight saturation level while you sleep

I fasten it with masking tape to my finger and wear it all night without a problem. It works very well and gave me valuable info about oxygen desaturations while sleeping on my back vs. on my side. (Apnea often much less severe when you sleep on your side, and this shows it.) Only downside is battery drain -- takes a lot of power to run all night.

Will it monitor you while you sleep, and how long will it record your information?

Wearing it for a long time will cause pressure on your fingers, it is not recommended to wear it overnight.

What is the difference compare to FS20F?

The 20 model has lower specs & less functions. Also the W in the model means wireless. The best way to get the answer you want is to use the model comparison chart on the web site of Wellue or major vendor.

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Bluetooth Pulse Oximeter Fingertip, Blood Oxygen Saturation Monitor with Free APP, Batteries, Carry Bag & Lanyard

Product ID: 190872292

Details

Brand
Wellue
Color
Black
Measurement Accuracy
≤ 2% for O2 to
Measuring Range
SpO2: 70-100%
Number of Batteries
2 AAA

📶Bluetooth real-time sync

🔋2-hour battery life

⏱️8-sec fast reading

¥7312

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Description

📊 Track your vitals like a pro—because your health deserves the VIP treatment.

PORTABLE READY - Includes batteries, carry pouch, and lanyard—designed for your active, on-the-move lifestyle.
SMART ALERTS ON THE GO - Customizable beep reminders notify you instantly if your oxygen or pulse levels stray from your preset limits.
INSTANT HEALTH INSIGHTS - Get accurate SpO2 & pulse readings in just 8 seconds—no waiting, no guessing.
SEAMLESS BLUETOOTH SYNC - Automatically stream and store your data on the free app for iOS & Android—track your health journey effortlessly.
FSA HSA ELIGIBLE WELLNESS - Invest in your health with a device reimbursable through flexible spending accounts—because prevention pays.

The Wellue Bluetooth Pulse Oximeter Fingertip delivers clinically accurate blood oxygen saturation and pulse rate readings in just 8 seconds. Featuring Bluetooth connectivity, it syncs real-time data to a free app for iOS and Android, enabling easy tracking and sharing of up to 12 historical records. Designed for convenience, it includes batteries, a carry pouch, and lanyard, with smart alerts for abnormal readings. Ideal for sports and aviation use, it’s FSA/HSA eligible and built to empower proactive health monitoring anytime, anywhere.

Specifications

ASIN	B085ZFDMMX
Battery Life	2 hours
Best Sellers Rank	#46,258 in Health & Household ( See Top 100 in Health & Household ) #35 in Athletic & Aviation Pulse Oximeters
Brand Name	Wellue
Color	Black
Customer Reviews	4.6 4.6 out of 5 stars (8,950)
Item Dimensions L x W x H	3.74"L x 2.95"W x 1.57"H
Manufacturer	Creative Medical
Manufacturer Contact Information	SHENZHEN CREATIVE INDUSTRY CO., LTD, Floor 5, BLD 9, Baiwangxin High-Tech Industrial Park, Songbai Road, Xili Street, Nanshan District, 518110, Shenzhen, China, Contact:+86-0755-2643-3514, [email protected]
Measurement Accuracy	≤ 2% for O2 level range from 70% to 100%, ±2bpm or ±2% (whichever is greater) for pulse rate
Measuring Range	SpO2: 70-100%, Pulse Rate: 30-250 bpm
Model Name	PC-60FW Bluetooth Oximeter
Model Number	PC-60FW
Number of Batteries	2 AAA batteries required. (included)
Number of Items	1
Part Number	SDJ16-218
Software Update Supported to Date	unknown
UPC	850048347656
Unit Count	1 Count
Warranty Description	1 year

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¥7312

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

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