---
product_id: 661524053
title: "Ring 4 - Silver - Size 10 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You Buy, Android & iOS Compatible"
brand: "oura"
price: "₨251571"
currency: LKR
in_stock: true
reviews_count: 8
category: "Oura"
url: https://www.desertcart.lk/products/661524053-ring-4-silver-size-10-sleep-activity-women-s-health
store_origin: LK
region: Sri Lanka
---

# 8-day battery life 50+ health metrics tracked Bluetooth connectivity Ring 4 - Silver - Size 10 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You Buy, Android & iOS Compatible

**Brand:** oura
**Price:** ₨251571
**Availability:** ✅ In Stock

## Summary

> 💍 Elevate your health game with the ring that knows you best.

## Quick Answers

- **What is this?** Ring 4 - Silver - Size 10 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You Buy, Android & iOS Compatible by oura
- **How much does it cost?** ₨251571 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/661524053-ring-4-silver-size-10-sleep-activity-women-s-health)

## 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

- • **Deep Health Insights:** Track over 50 health metrics including sleep, stress, heart, and women’s health with adaptive Smart Sensing technology.
- • **Seamless Style Switch:** Multi-ring support lets you effortlessly swap finishes via the app to match your mood or outfit—because your ring should be as versatile as you.
- • **Membership Perks Included:** Enjoy your first month of Oura membership free, unlocking personalized insights and premium features to elevate your wellness journey.
- • **Precision Fit, Every Time:** Unique sizing kit ensures your Oura Ring 4 fits perfectly before you buy—no guesswork, just comfort.
- • **Uninterrupted Wearability:** Up to 8 days of battery life means you stay focused on life, not charging—wear it 24/7 without missing a beat.

## Overview

The Oura Ring 4 in Silver is a cutting-edge smart ring designed for professionals who demand precision and style. Featuring a unique sizing system, it tracks over 50 health metrics with adaptive Smart Sensing technology, including sleep, activity, stress, and women’s health. With up to 8 days of battery life and Bluetooth connectivity, it offers seamless 24/7 wearability without distractions. Multi-ring support allows easy style changes via the app, and a complimentary first month of Oura membership unlocks advanced health insights. Lightweight and crafted from durable titanium, it’s the ultimate biometric monitor for the health-conscious millennial manager.

## Description

Introducing Oura Ring 4: the latest evolution of the revolutionary smart ring. Oura Ring 4 brings you closer to what matters most — your health. The updated all-titanium design is powered by Smart Sensing, a new sensing platform that doesn’t just measure your biometrics, it adapts to you, providing insights into over 50 health metrics including sleep, readiness, activity, heart health, stress, metabolic health, and women’s health. Oura Ring quietly and comfortably monitors your health and with 5 to 8 days of battery life — you can forget it’s even on. With multi-ring support, change Oura Ring 4 styles as easily as changing your outfit. If you have two or more Oura Ring 4 styles, you can now switch easily between different finishes in the Oura App.

Review: Love this ring! - Within the 6 months of having this ring I’ve noticed that scratches have only really appeared where I hit my finger against my computer mouse at work. The rest of the ring looks great! I have some sleep and health issues so this tracking has immensely helped me find out what I need to adjust. Based on your sleep score, temperature, and heart rate, the app will let you know if something is going on - especially illnesses. It’ll let you know something minor is straining your body when you are going to be sick the following day, then show major signs when you’re actually sick, which gives great peace of mind. I also started a new medication and my general scores lately, along with other factors, have shown that I need to revisit this medication choice. I’ve also really enjoyed the cycle tracking while being off of birth control, this along with ovulation testing has been the best hormone free birth control. This has been the most accurate tracking and prediction I’ve had, in comparison to Flo and Stardust. These rings are amazing if you’re looking to have some motivation for activity, cycle tracking, sleep monitoring, and general peace of mind.
Review: Phenomenal Sleep Tracking Tool - I got this Oura ring for my wife for Christmas this past year and she loves it as well as the rose gold color. It's a very good way to take control of your sleep and improve sleep quality. The ring tracks your sleep down to the minute, is crazy accurate, and works with an app that, once installed, works offline and connects to the ring through Bluetooth. Every morning you can get a full breakdown on the app of your sleep pattern for the night including sleep stages (light, REM, deep), heart rate, heart rate variability, body temperature, respiratory rate, total sleep vs time in bed, your sleep efficiency, your "body clock" and even "sleep debt" (which tracks how much sleep you're getting vs how much you need for your body type). It also tracks the menstrual cycle for women, which my wife uses and likes a lot. She's been able to figure out a pattern based on her heart rate that happens the day before her period actually starts, which works every time - super cool! Of course it does other things like tracks your steps, exercise, you can log your meals etc. Too many things for me to include in this review. The ring fits my wife's finger perfectly. Before you buy you have to purchase the ring sizing kit, which is cheap, and you can use it for friends if you refer people (which you can get awarded for monetarily). The sizing is pretty easy, wear one of the sizers for a day and make sure it's comfortable and then order your ring. I've also seen the ring sizing kits on display in places like Costco or Best Buy, so that's another option without having to buy the kit. The battery lasts about a week, which is pretty good. And it charges in less than an hour, sometimes half an hour if she's charging it more regularly than a week (which your supposed to do). My own Oura Ring 4 is over a year old and I have to charge it every 2-3 days. I admit, I did not follow their recommendations for maintaining the best battery life, so can't complain there. Overall, Oura Ring is fantastic and I'd highly recommend it to anyone. My wife and I have both been able to improve our overall sleep quality since using them. They are a very good tool for that if you want to prioritize sleep in relation to health (which anyone should).

## Features

- ACCURATE SIZING ESSENTIAL - Oura Ring 4 uses unique sizing different from standard jewelry rings; use the Oura Ring 4 Sizing Kit to find your perfect fit before purchasing
- OURA MEMBERSHIP - First month of membership is included with purchase, for new members only. Subscription is 5.99/mo afterwards. Or opt for the annual prepaid option for 69.99. Membership is tied to your account via the Oura App, not your physical ring
- ACCURACY - SMART SENSING - Oura tracks over 50 health metrics, including sleep, activity, stress, heart health, and women’s health metrics. Oura Ring 4 is powered by Smart Sensing, which adapts to you — delivering accurate, continuous data, day and night
- LONG LASTING BATTERY - With up to 8 days of battery life, no screens and no vibrations, Oura Ring 4 allows you to focus on the present. From a workout to a night out — you’re free to forget it’s on. Until you start getting compliments
- HSA/FSA ELIGIBLE - We can accept HSA or FSA funds for the following: Oura Ring, additional chargers, and shipping

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D9WT1S2T |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Best Sellers Rank | #45 in Electronics ( See Top 100 in Electronics ) #1 in Smart Rings |
| Color | Silver |
| Connectivity technologies | Bluetooth |
| Customer Reviews | 4.1 4.1 out of 5 stars (8,476) |
| Date First Available | October 3, 2024 |
| GPS | GPS Via Smartphone |
| Human Interface Input | Unknown |
| Item Weight | 6.3 ounces |
| Item model number | JZ90-54217-10 |
| Manufacturer | Oura |
| OS | iOS, Android |
| Other display features | Wireless |
| Product Dimensions | 1.06 x 1.06 x 0.28 inches |
| Ram Memory Installed Size | 16 MB |
| Special features | Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight |
| Weight | 180 Grams |
| Whats in the box | Oura Ring 4, Oura Ring 4 Charger, USB Cable, Information Booklet, Quick Start Guide |

## Product Details

- **Battery Cell Composition:** Lithium Polymer
- **Brand:** OURA
- **Connectivity Technology:** Bluetooth
- **GPS:** GPS Via Smartphone
- **Model Name:** Oura Ring 4
- **Operating System:** iOS, Android
- **Shape:** Round
- **Special Feature:** Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight
- **Style:** Metallic
- **Wireless Communication Standard:** Bluetooth

## Images

![Ring 4 - Silver - Size 10 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You Buy, Android & iOS Compatible - Image 1](https://m.media-amazon.com/images/I/51ul5++ZdWL.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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Love this ring!
*by A***I on February 16, 2026*

Within the 6 months of having this ring I’ve noticed that scratches have only really appeared where I hit my finger against my computer mouse at work. The rest of the ring looks great! I have some sleep and health issues so this tracking has immensely helped me find out what I need to adjust. Based on your sleep score, temperature, and heart rate, the app will let you know if something is going on - especially illnesses. It’ll let you know something minor is straining your body when you are going to be sick the following day, then show major signs when you’re actually sick, which gives great peace of mind. I also started a new medication and my general scores lately, along with other factors, have shown that I need to revisit this medication choice. I’ve also really enjoyed the cycle tracking while being off of birth control, this along with ovulation testing has been the best hormone free birth control. This has been the most accurate tracking and prediction I’ve had, in comparison to Flo and Stardust. These rings are amazing if you’re looking to have some motivation for activity, cycle tracking, sleep monitoring, and general peace of mind.

### ⭐⭐⭐⭐⭐ Phenomenal Sleep Tracking Tool
*by K***H on February 20, 2026*

I got this Oura ring for my wife for Christmas this past year and she loves it as well as the rose gold color. It's a very good way to take control of your sleep and improve sleep quality. The ring tracks your sleep down to the minute, is crazy accurate, and works with an app that, once installed, works offline and connects to the ring through Bluetooth. Every morning you can get a full breakdown on the app of your sleep pattern for the night including sleep stages (light, REM, deep), heart rate, heart rate variability, body temperature, respiratory rate, total sleep vs time in bed, your sleep efficiency, your "body clock" and even "sleep debt" (which tracks how much sleep you're getting vs how much you need for your body type). It also tracks the menstrual cycle for women, which my wife uses and likes a lot. She's been able to figure out a pattern based on her heart rate that happens the day before her period actually starts, which works every time - super cool! Of course it does other things like tracks your steps, exercise, you can log your meals etc. Too many things for me to include in this review. The ring fits my wife's finger perfectly. Before you buy you have to purchase the ring sizing kit, which is cheap, and you can use it for friends if you refer people (which you can get awarded for monetarily). The sizing is pretty easy, wear one of the sizers for a day and make sure it's comfortable and then order your ring. I've also seen the ring sizing kits on display in places like Costco or Best Buy, so that's another option without having to buy the kit. The battery lasts about a week, which is pretty good. And it charges in less than an hour, sometimes half an hour if she's charging it more regularly than a week (which your supposed to do). My own Oura Ring 4 is over a year old and I have to charge it every 2-3 days. I admit, I did not follow their recommendations for maintaining the best battery life, so can't complain there. Overall, Oura Ring is fantastic and I'd highly recommend it to anyone. My wife and I have both been able to improve our overall sleep quality since using them. They are a very good tool for that if you want to prioritize sleep in relation to health (which anyone should).

### ⭐⭐⭐⭐⭐ Amazing product & customer support service!!!!
*by K***. on March 4, 2026*

I absolutely love this ring and all it offers. I’ve recommended it to everyone who has asked about it in the 11 months I’ve been wearing it (24/7). I know at least one person who has purchased one based off of my recommendation. Lately, within just the last few weeks, I’ve noticed the battery life has decreased sufficiently. Going from 5-6 days between charges to 2-3 days. Then the last week, I’ve begun having connectivity issues. While frustrating, I love this ring. So much so that I was seriously considering buying another one. But that $400.00 price tag is steep. Today I decided to submit a question for help through the app. Within 5 minutes tops, the virtual assistant determined I was indeed having issues, confirmed the ring I have is in stock and informed me that a replacement would be shipped with arrival time at 1-2 weeks. I am just under the year (purchased 4/8/2025 and today is 3/4/2026) but that was unexpected and honestly, amazing!!! I am so impressed. Enough so, I came to Amazon to write a review (which I never do). I will continue to recommend this product to anyone and everyone who asks!!!

## Frequently Bought Together

- Oura Ring 4 - Silver - Size 10 - Smart Ring - Size First with Oura Ring 4 Sizing Kit - Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days of Battery Life
- sylacor Ring Cover for Oura Ring Gen 4/ Gen 3, Anti-Scratch Elastic Silicone Oura Ring Case Protector for Men Women Working Out Gym
- PAVOI 14K Gold Plated Solid 925 Sterling Silver CZ Simulated Diamond Stackable Ring Eternity Bands for Women

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-21*