【Free App and Software for Android, iOS, and PC】： The "Vihealth" app and "O2 Insight Pro" software allow you to easily share your daily data history or monitor your real-time oxygen levels (O2) and heart rate on your phone, tablet, or computer. Please download "Vihealth" from the Apple Store or Google Play.
【Intelligent Vibration and Audio Reminder】：The adjustable vibration and audio reminder gently alerts you when your blood oxygen level falls below your defined value.
【All-day Monitoring】： The Checkme O2 Max accurately records your oxygen levels (blood oxygen saturation), pulse rate, and movements.
【Comfortable Patented Ring Sensor】：The soft silicone ring sensor ensures your finger does not go numb and never slips off, keeping your finger completely free.
【Up to 72 Hours of Use】：No AAA batteries required, no need to keep batteries nearby. Continuous use for up to 9 nights (72 hours) on a single charge, with a one-year warranty.
【Built-in Memory】：The O2Max oxygen monitor stores four sets of 10-hour data. When the device is connected to the app via Bluetooth, the data is automatically uploaded.
【NOTE】：This is not a medical device. This device is intended for sports and aviation use only and is not for medical purposes.
Specifications
WEIGHT (MAIN DEVICE): 0.63 oz / 18g
DEVICE DIMENSIONS: 1.9'' x 1.0'' x 0.7''
RING SIZE: 2.0'' - 3.0''
WIRELESS: Bluetooth 4.0 BLE
BATTERY LIFE: Rechargeable lithium-polymer, 3.7V DC, 72 hours with normal use
DUST AND WATER RESISTANCE RATING: IP22
RECORDED PARAMETERS: Oxygen level, pulse rate, movement
COMPATIBLE COMPUTER SYSTEMS: Windows 7/8/10; macOS 10.15.3 or higher
COMPATIBLE WITH: iOS 9.0 or higher, iPhone 4s/iPad 3 or higher; Android 5.0 or higher, with
Bluetooth 4.0 BLE
OXYGEN LEVEL RANGE: 70% - 100%
PULSE RATE RANGE: 30 to 250 bpm
MEASUREMENT INTERVAL: 1 second
DISPLAY INTERVAL IN THE APP: 2 seconds
BUILT-IN MEMORY: 4 recordings, each up to 10 hours
Packing List
1X Device host
1X SpO2 probe
1X USB data cable (micro)
1X User manual
On Sep 23, 2026 at 01:53:11 PDT, seller added the following information:
