---
product_id: 706499391
title: "Smart Ring 4 - Stealth - Size 9 - | Non-Standard Fit – Measure with a Size Kit |Sleep, Heart Rate and Fitness Tracking Wearable | 8-Day Battery, iOS/Android Compatible"
brand: "oura"
price: "₨196087"
currency: LKR
in_stock: true
category: "Oura"
url: https://www.desertcart.lk/products/706499391-smart-ring-4-stealth-size-9-non-standard-fit-measure
store_origin: LK
region: Sri Lanka
---

# 8-day battery life 100m water resistant 80 min fast USB-C charge Smart Ring 4 - Stealth - Size 9 - | Non-Standard Fit – Measure with a Size Kit |Sleep, Heart Rate and Fitness Tracking Wearable | 8-Day Battery, iOS/Android Compatible

**Brand:** oura
**Price:** ₨196087
**Availability:** ✅ In Stock

## Summary

> 💍 Own your health, invisibly powerful.

## Quick Answers

- **What is this?** Smart Ring 4 - Stealth - Size 9 - | Non-Standard Fit – Measure with a Size Kit |Sleep, Heart Rate and Fitness Tracking Wearable | 8-Day Battery, iOS/Android Compatible by oura
- **How much does it cost?** ₨196087 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/706499391-smart-ring-4-stealth-size-9-non-standard-fit-measure)

## 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

- • **Power through your week:** Up to 8 days of battery life with quick 80-minute USB-C charging keeps you unplugged longer.
- • **Seamless smartphone sync:** Effortlessly connect via Bluetooth to iOS/Android for real-time analytics and personalized guidance.
- • **Unlock deep health insights:** Advanced sensors track heart rate, sleep stages, and activity to optimize your wellness journey.
- • **Tailored fit, zero guesswork:** Included sizing kit guarantees the perfect ring size, so you never compromise on comfort or accuracy.
- • **All-day comfort meets sleek stealth:** Titanium build ensures featherlight durability and a discreet, stylish look for every occasion.

## Overview

The OURA Smart Ring 4 in Stealth is a premium titanium wearable that delivers precise heart rate, sleep, and activity tracking with up to 8 days of battery life. Featuring fast USB-C charging, 100m water resistance, and seamless Bluetooth connectivity to iOS and Android devices, it offers a sleek, comfortable design with a sizing kit for a perfect fit. Ideal for professionals seeking discreet, data-driven wellness insights.

## Description

Free delivery and returns on eligible orders. Buy OURA Smart Ring 4 - Stealth - Size 9 - | Non-Standard Fit – Measure with a Size Kit |Sleep, Heart Rate and Fitness Tracking Wearable | 8-Day Battery, iOS/Android Compatible at desertcart UK.

## Features

- Compact and intelligent design for comfortable everyday wear
- Advanced health monitoring capabilities, including heart rate, sleep patterns, and activity tracking
- Long battery life with convenient wireless charging
- Seamless smartphone app integration for detailed health and activity analytics
- Available in multiple finishes and sizes for personalized style

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D9WVKRKS |
| Age Range Description | Adult |
| Band Material Type | Titanium |
| Battery Average Life | 8 days |
| Battery Cell Type | Lithium Polymer |
| Battery Charge Time | 80 minutes |
| Best Sellers Rank | 670 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 2 in Wearable Tech Rings |
| Box Contents | Information Booklet, Oura Ring 4, Oura Ring 4 Charger, Quick Start Guide, USB-C Cable |
| Brand Name | OURA |
| Case Material Type | Titanium |
| Closure Type | Buckle |
| Colour | Stealth |
| Communication Feature | Bluetooth |
| Compatible Devices | Smartphone |
| Compatible Phone Models | Compatible with iOS and Android devices |
| Connectivity Technology | Bluetooth |
| Country of Origin | Estonia |
| Customer Reviews | 4.2 4.2 out of 5 stars (8,851) |
| Display Type | No Display |
| EU Spare Part Availability Duration | 8 Days |
| GPS Geotagging Functionality | No GPS |
| Human Interface Input | Unknown |
| Item Dimensions | 23 x 23 x 8 millimetres |
| Item Dimensions D x W x H | 8D x 23W x 8H millimetres |
| Item Weight | 0.18 Kilograms |
| Manufacturer | Oura |
| Metrics Measured | Heart Rate Monitor |
| Model Name | Oura Ring 4 - Stealth - Size 9 |
| Model Number | JZ90-54218-09 |
| Operating System | Sistema Operativo Proprietario |
| Product Features | Sizing Kit |
| Product Warranty | 3 year manufacturer warranty |
| Shape | Round |
| Style Name | Metallic |
| Supported Application | Oura App |
| Supported Satellite Navigation System | GPS |
| Target Audience | Unisex Adults |
| Unit Count | 1.0 count |
| Warranty Type | Lifetime |
| Water Resistance Depth | 100 Metres |
| Water Resistance Level | Water Resistant |
| Wearable Computer Type | Smart Ring |
| Wireless Compability | Bluetooth |
| Wireless Provider | Verizon |

## Product Details

- **Battery cell composition:** Lithium Polymer
- **Brand:** OURA
- **Connectivity technology:** Bluetooth
- **GPS:** No GPS
- **Model name:** Oura Ring 4 - Stealth - Size 9
- **Operating system:** Sistema Operativo Proprietario
- **Shape:** Round
- **Special feature:** Sizing Kit
- **Style:** Metallic
- **Wireless communication standard:** Bluetooth

## Images

![Smart Ring 4 - Stealth - Size 9 - | Non-Standard Fit – Measure with a Size Kit |Sleep, Heart Rate and Fitness Tracking Wearable | 8-Day Battery, iOS/Android Compatible - Image 1](https://m.media-amazon.com/images/I/418ROdi0vFL.jpg)
![Smart Ring 4 - Stealth - Size 9 - | Non-Standard Fit – Measure with a Size Kit |Sleep, Heart Rate and Fitness Tracking Wearable | 8-Day Battery, iOS/Android Compatible - Image 2](https://m.media-amazon.com/images/I/41tJsKzO2KL.jpg)
![Smart Ring 4 - Stealth - Size 9 - | Non-Standard Fit – Measure with a Size Kit |Sleep, Heart Rate and Fitness Tracking Wearable | 8-Day Battery, iOS/Android Compatible - Image 3](https://m.media-amazon.com/images/I/418msFWVsXL.jpg)
![Smart Ring 4 - Stealth - Size 9 - | Non-Standard Fit – Measure with a Size Kit |Sleep, Heart Rate and Fitness Tracking Wearable | 8-Day Battery, iOS/Android Compatible - Image 4](https://m.media-amazon.com/images/I/414AOMY+IfL.jpg)
![Smart Ring 4 - Stealth - Size 9 - | Non-Standard Fit – Measure with a Size Kit |Sleep, Heart Rate and Fitness Tracking Wearable | 8-Day Battery, iOS/Android Compatible - Image 5](https://m.media-amazon.com/images/I/41VAdbswOuL.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 - Stealth - Size 9 - Smart Ring - Size First with Oura Ring 4 Sizing Kit - Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days of Battery Life
- Oura Ring 4 Charger - Size 9 - Charging Dock and USB-C Cable - Charges Oura Ring 4 up to 8 Days
- sylacor Ring Cover for Oura Ring Gen 4/ Gen 3, Anti-Scratch Elastic Silicone Oura Ring Case Protector for Men Women Working Out Gym

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**Shop now:** [https://www.desertcart.lk/products/706499391-smart-ring-4-stealth-size-9-non-standard-fit-measure](https://www.desertcart.lk/products/706499391-smart-ring-4-stealth-size-9-non-standard-fit-measure)

---

*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-10-07*