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💍 Own your health, invisibly powerful.
The Oura Ring 4 Stealth is a cutting-edge smart ring crafted from titanium, featuring Smart Sensing technology that tracks over 50 health metrics including sleep, heart health, stress, and women’s health. It offers up to 8 days of battery life, is waterproof with an IP68 rating, and supports seamless style changes via the app. Designed for professionals who demand accuracy and elegance, it also includes a free first-month membership and is HSA/FSA eligible.
| ASIN | B0D9WWHXHH |
| Additional Features | Smart Sensing |
| Age Range Description | Adult |
| Band Material Type | Titanium |
| Battery Average Life | 5 days |
| Battery Capacity | 22 milliamp_hours |
| Battery Cell Type | Lithium Polymer |
| Battery Charge Time | 80 minutes |
| Best Sellers Rank | #238 in Electronics ( See Top 100 in Electronics ) #2 in Smart Rings #6 in Activity & Fitness Trackers |
| Brand | OURA |
| Built-In Media | Oura Ring 4, Oura Ring 4 Charger, USB Cable, Information Booklet, Quick Start Guide |
| Cellular Technology | Not Supported |
| Closure Type | Buckle |
| Color | Stealth |
| Communication Feature | Bluetooth |
| Compatible Devices | Smartphone |
| Compatible Phone Models | Compatible with iOS and Android devices |
| Connectivity Technology | Bluetooth |
| Controller Type | App-based |
| Customer Reviews | 4.0 4.0 out of 5 stars (8,953) |
| Display Type | No Display |
| GPS Geotagging Functionality | GPS Via Smartphone |
| Human Interface Input | Unknown |
| Item Dimensions | 0.98 x 0.98 x 0.31 inches |
| Item Weight | 0.19 kg |
| Manufacturer | Oura |
| Metrics Measured | Body Temperature, Menstrual Cycle, Sleep Duration, Stress |
| Model Name | Oura Ring 4 - Stealth - Size 11 |
| Model Number | JZ90-54218-11 |
| Operating System | i_os, android |
| Shape | Round |
| Style Name | Metallic |
| Supported Application | Fitness Tracker, Sleep Monitor, Heart Rate Monitor, Pedometer, Multisport Tracker, Reminders, Calendar, Music Player, Messages, Social Media, Weather, Contacts, Photo Gallery, Find My Phone, Voice Assistant, Voice Control, Voice Record, Time Display, Phone, Video Record, Camera, Alarm, Blood Pressure Monitor, Elevation Tracker, Email, GPS |
| Supported Satellite Navigation System | GPS |
| Target Audience | Unisex Adults |
| Unit Count | 1 Count |
| Warranty Description | 1 Year Manufacturer |
| Warranty Type | Standard |
| Water Resistance Depth | 100 meters |
| Water Resistance Level | Waterproof |
| Waterproof Rating | IP68 |
| Wearable Computer Type | Smart Ring |
| Wireless Compability | Bluetooth |
| Wireless Provider | Unlocked |
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