Oura Ring 4 vs Ultrahuman Ring Air
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General
| Brand | Oura | Ultrahuman |
| Model Name | Ring 4 | Ring Air |
| Ideal For | Men, Women | |
| Sales Package | Smart Ring, Charger, User Manual |
Design and Body
| Dimensions | [object Object] | |
| Weight | 5.2 g | |
| Material | Titanium | Outer shell: Fighter jet grade Titanium reinforced with Tungsten Carbide Carbon coating, inners of the ring is coated with medical-grade hypoallergenic epoxy resin |
| Shape | Circle | |
| Water Resistant | Yes | Yes |
| Water Resistant Depth | 100 m | 100 m |
| Water Resistant Certificate | 10ATM, IP68 | |
| Dust Proof | Yes |
Connectivity
| Bluetooth | Yes | Yes, Bluetooth Low Energy (BLE5) |
Extra
| Extra Features | Smart Sensing technology, Women’s Health Tracker, Women’s Health, Stress Monitoring | Infrared Photoplethysmography (PPG) sensor, Non-contact medical-grade skin temperature sensor, 6-axis motion sensors, Red LEDs (heart rate monitoring and oxygen saturation), Green LEDs (heart rate monitoring) ,Infrared LEDs (heart rate monitoring) |
Technical
| Compatible OS | Android, iOS |
Battery
| Battery Capacity | 18 mAh | 24 mAh |
| Battery Type | LiPo | |
| Removable Battery | Non-Removable Battery | Non-Removable Battery |
| Battery Backup | 5-8 Days | 6 days |
| Fast Charging | Yes |
Fitness Features and Sensors
| Heart Rate Monitor | Yes | Yes |
| SpO2 (Blood Oxygen) Monitor | Yes | Yes |
| BP Monitor | Yes | |
| Temperature Sensor | Yes | |
| Pedometer | Yes | |
| Altimeter | Yes | |
| Sleep Monitor | Yes | |
| Meters and Sensors | Accelerometer, Calorie Count, Step Count | Calorie Count, Step Count, PPG Sensors, 6 Axis Motion |
Warranty
| Warranty | 1 year | 1 year |
| Covered in Warranty | Manufacturing Defects | |
| Not Covered in Warranty | Physical Damage | |
| Warranty Service Type | On site |
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