SleepU continuously monitors blood oxygen saturation (SpO2) and heart rate to help detect sleep apnea. When sleep apnea occurs (a pause or stop in breathing), oxygen levels drop. The SleepU detects this drop in oxygen saturation and heart rate changes, alerting the user with a vibration. When this happens repeatedly, the device records all the data, which can be reviewed in the app to help identify potential sleep apnea issues.
Wear our SleepU while you sleep, and it will quietly collect data, providing a 98% effective detection rate for sleep apnea.
About the item
All-Day Accurate Tracker: SleepU oximeter tracks your blood oxygen saturation level, heart rate and body motion all day, can be used for up to 12-16 hours after fully charged.
Comfortable Soft Ring Sensor：The lightest, smallest silicone ring sensor makes it comfortable for continuous tracking, durable and adapt to most fingers.
Smart Reminder: Both the device and APP will let you know immediately when your blood oxygen level exceeds the threshold. You don't need to keep looking at the screen to monitor your o2 levels. Also, you can adjust the threshold and intensity of reminders on the APP.
Detailed APP Records & PC Report: Free to export and share detailed records as PDF, CSV or Binary. View detailed data every four seconds, as well as O2 score, help you understand your body better. Plus, you can manage your oxygen reports through the PC software.
Device or APP Storage: Works independently or together with the app. It stores 4 groups of data on device, each group can up to 10 hours. And the data is automatically synchronized to the APP via Bluetooth.(The first set of data will be overwritten by the fifth set, so please upload your data to the app promptly, unlimited storage on the app)
Easy to Use & Size: OxyU blood oxygen saturation monitor runs automatically when you wear it, even the elderly can easily get started. Product dimensions: Main unit: 5cm x 3cm, Strap circumference: ~27cm, Probe cable length: 17cm.
Note: It's not a medical device. This device is for Sports and Aviation use only and not intended for medical use.
Specifications
Model：SleepU/OxyU
Weight(Main Unit with Band and Sensor)：1.09 oz / 31g
Device Dimensions：1.6'' x 0.9'' x 0.5''
Band Perimeter：5.1"-8.2"/130-210mm
Maximum Suitable Wrist Size：21 cm
Ring Perimeter：2.0'' - 3.0'' / 50-76mm
Wireless：Bluetooth 4.0 BLE
Battery Life：Rechargeable lithium-polymer, 3.7 Vdc, 16 hours for typical use
Degree Of Dust & Water Resistance：IP22
Recorded Parameters：Oxygen levels, pulse rate, motion
Built-in Memory：4 records, up to 10 hours for each
Oxygen Level Range：70% - 99%
SpO2 Accuracy (Arms)：80-99%: ±2%；70-79%: ±3%
Pulse Rate Range：30 to 250 bpm
PR Accuracy：±2bpm or ±2%, whichever is greater
Sampling Interval：1 second
Display Interval In App：4 seconds
Probe vibration：Triggered by low oxygen level
Compatible Computer System：Windows 7 or later；macOS 10.15.3 or later
Works With：iOS: Version 9.0 or later, iPhone 4s/iPad 3 or later；Android: Version 5.0 or later, with Bluetooth 4.0 BLE
Parcel list
1X Device host
1X SpO2 probe
1X USB data cable (micro)
1X User manual
On Oct 23, 2025 at 00:14:31 PDT, seller added the following information:
