---
product_id: 724803938
title: "Oura Ring 4 Black US14 Smart Ring Aura Ring Gen4 Sleep Tracking Wearable Heart Rate Fitness Tracker with Up to 8 Days Battery Life"
brand: "oura"
price: "NT$23004"
currency: TWD
in_stock: true
url: https://www.desertcart.tw/products/724803938-oura-ring-4-black-us14-smart-ring-aura-ring-gen4
store_origin: TW
region: Taiwan
---

# 8 days battery life 30+ biometric sleep & recovery tracking Titanium build with wireless charging Oura Ring 4 Black US14 Smart Ring Aura Ring Gen4 Sleep Tracking Wearable Heart Rate Fitness Tracker with Up to 8 Days Battery Life

**Brand:** oura
**Price:** NT$23004
**Availability:** ✅ In Stock

## Summary

> 💍 Own your health journey with the smartest ring on your finger.

## Quick Answers

- **What is this?** Oura Ring 4 Black US14 Smart Ring Aura Ring Gen4 Sleep Tracking Wearable Heart Rate Fitness Tracker with Up to 8 Days Battery Life by oura
- **How much does it cost?** NT$23004 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/724803938-oura-ring-4-black-us14-smart-ring-aura-ring-gen4)

## Best For

- oura enthusiasts

## Why This Product

- Trusted oura brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Wireless freedom:** Comes with wireless charging and Bluetooth connectivity for hassle-free use.
- • **Smart sensing tech:** Adaptive insights that evolve with your body for personalized wellness guidance.
- • **Effortless endurance:** Up to 8 days of battery life means less charging, more living.
- • **Sleek titanium design:** Durable, lightweight, and stylish — built to be worn 24/7 without notice.
- • **All-day health mastery:** Track 30+ biometrics including sleep, heart rate, stress & women's health seamlessly.

## Overview

The Oura Ring 4 is a sleek, titanium smart ring designed for continuous health monitoring. It tracks over 30 biometrics including sleep, heart rate, activity, and stress, providing adaptive insights to optimize wellness. With up to 8 days of battery life and wireless charging, it offers a seamless, stylish, and durable wearable experience for professionals seeking data-driven health management.

## Description

Introducing the Oura Ring 4 — the next generation smart ring that has evolved. With your health first, the Oura Ring 4 has a new design made from all titanium, and "smart sensing" that adapts to you beyond just measures. Quietly and comfortably monitor over 30 biometrics including sleep, recovery, activity, heart health, stress, and women's health. With up to 8 days of battery life, you'll forget you have it on.

## Features

- Oura Ring 4, Oura Ring 27 Charger, USB Cable, Information Booklet, Quick Start Guide

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Weight | 180 g |
| Product Dimensions | 2.4 x 2.4 x 0.7 cm; 180 g |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Item model number | JZ90-54144-14 |
| Connectivity technologies | Bluetooth |
| GPS | No GPS |
| Special features | Activity Tracker |
| Other display features | Wireless |
| Human Interface Input | Buttons |
| Color | Black |
| Whats in the box | Oura Ring 27 Charger, USB Cable, Information Booklet, Quick Start Guide |

## Product Details

- **Special Feature:** Activity Tracker
- **Connectivity Technology:** Bluetooth
- **Wireless Communication Standard:** Bluetooth
- **Battery Cell Composition:** Lithium Polymer
- **GPS:** No GPS

## Images

![Oura Ring 4 Black US14 Smart Ring Aura Ring Gen4 Sleep Tracking Wearable Heart Rate Fitness Tracker with Up to 8 Days Battery Life - Image 1](https://m.media-amazon.com/images/I/61WuzC7dsZL.jpg)
![Oura Ring 4 Black US14 Smart Ring Aura Ring Gen4 Sleep Tracking Wearable Heart Rate Fitness Tracker with Up to 8 Days Battery Life - Image 2](https://m.media-amazon.com/images/I/61SbU6vr5tL.jpg)
![Oura Ring 4 Black US14 Smart Ring Aura Ring Gen4 Sleep Tracking Wearable Heart Rate Fitness Tracker with Up to 8 Days Battery Life - Image 3](https://m.media-amazon.com/images/I/71kHdhzefWL.jpg)
![Oura Ring 4 Black US14 Smart Ring Aura Ring Gen4 Sleep Tracking Wearable Heart Rate Fitness Tracker with Up to 8 Days Battery Life - Image 4](https://m.media-amazon.com/images/I/71wIme7AdBL.jpg)
![Oura Ring 4 Black US14 Smart Ring Aura Ring Gen4 Sleep Tracking Wearable Heart Rate Fitness Tracker with Up to 8 Days Battery Life - Image 5](https://m.media-amazon.com/images/I/71wv0xwxcnL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: How long should my ring work between charges?**
A: Oura Ring 4 typically lasts 5-8 days on a full charge, depending on usage. Contact Oura Member Care if you have questions or concerns with battery life, and they will ensure your problem is resolved

**Q: How do I choose the right Oura Ring size?**
A: Using the Oura Ring 4 Sizing Kit, choose a finger for your ring. We recommend the index, middle or ring finger. Wear the sizer ring for 24 hours to ensure the fit is secure and comfortable over the course of your day.

**Q: What's included?**
A: Oura Ring 4, Oura Ring 4 Charger, and USB-C Cable.

**Q: How do I see my Oura Ring metrics?**
A: After activating your Oura Ring, you can choose a monthly or annual membership to unlock full access to Oura’s features, daily health and wellness metrics, and personalized guidance.

**Q: Can I use more than one ring?**
A: Oura Members can now connect more than one Oura Ring 4 to their Oura App and quickly switch between them. Note, this feature only supports wearing and syncing data from one active Oura Ring at a time.

## Frequently Bought Together

- Oura Ring 4 - Black - Size 14 - Smart Ring - Size First with Oura Ring 4 Sizing Kit - Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days of Battery Life
- Snyeest 4-Pack Ring Protector Compatible for Oura Ring 4/Ring Gen 3 /ULTRAHUMAN Ring AIR,Silicone Case Finger Wrapper Woking Out Women Men (Black*2+Blue*2, M for 11/12/13/14/15)

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**Shop now:** [https://www.desertcart.tw/products/724803938-oura-ring-4-black-us14-smart-ring-aura-ring-gen4](https://www.desertcart.tw/products/724803938-oura-ring-4-black-us14-smart-ring-aura-ring-gen4)

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-01-27*