---
product_id: 723716256
title: "Ring 4 - Silver - Size 8 - Smart Ring | Size First Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life"
brand: "oura"
price: "₨1286398"
currency: LKR
in_stock: true
reviews_count: 5
url: https://www.desertcart.lk/products/723716256-ring-4-silver-size-8-smart-ring-size-first-ring
store_origin: LK
region: Sri Lanka
---

# Continuous heart rate tracking Seamless Apple & Google Health sync 8 days battery life Ring 4 - Silver - Size 8 - Smart Ring | Size First Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life

**Brand:** oura
**Price:** ₨1286398
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Ring 4 - Silver - Size 8 - Smart Ring | Size First Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life by oura
- **How much does it cost?** ₨1286398 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/723716256-ring-4-silver-size-8-smart-ring-size-first-ring)

## 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

- • **Data-Driven Wellness:** Advanced heart rate and sleep tracking deliver personalized insights to optimize your energy and stress levels.
- • **Discreet Yet Powerful:** No display needed—intelligent sensors work silently on your finger, empowering smarter health decisions without distraction.
- • **Effortless All-Day Wear:** Sleek silver design with ultra-light 5.2g weight for comfort that lasts from meetings to workouts.
- • **Power Through Your Week:** Up to 8 days of battery life means less charging, more living—stay connected without interruption.
- • **Universal Compatibility:** Flawless Bluetooth syncing with Apple Health, Google Health Connect, and major smartphones keeps your health data unified.

## Overview

The Oura Smart Ring in silver, size 8, is a cutting-edge biometric device designed for continuous heart rate and sleep monitoring. Featuring up to 8 days of battery life and seamless compatibility with Apple Health and Google Health Connect, it offers millennial professionals a sleek, lightweight, and discreet way to track wellness metrics and optimize daily performance.

## Description

Oura - Smart Ring - Silver - Size 8 - Sleep & Heart Rate Tracker - Up to 8 Days Battery - Compatible with Apple Health, Google Health Connect & More : desertcart.in: Jewellery

Review: Delivery took longer than expected, but i am happy with the ring. It does exactly what they advertise. Its a nice to have.
Review: I hesitated for a while before investing in this gadget. And I love my Gadgets! but after doing some homework on the competition, I decided to jump for it. First, the fit and metal colour are great, I couldn't be happier, the quality and durability is insane, i do everything with it, I rarely take it off. The connectivity to my Samsung Z Fold6 was flawless, no hiccups, plus, everything you open the app, it updates in no time. so great compatibility. Now, you need to give it time to gather data about you, of course... it will not happen overnight which is quite right, but the intel you get afterwards is great. Your body age, sleep quality, energy available, your stress, it is such a great little ring. it is a lot of money for such a small device but the value for money is worth it. I highly recommend it if you are curious and want to be nudge in the right direction for better health.

## Features

- Heart Rate Monitor, Activity Tracker

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D9WVSZ56 |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Batteries Included | Yes |
| Batteries Required | Yes |
| Battery cell composition | Lithium Polymer |
| Brand | OURA |
| Compatible Devices | Smartphone |
| Connector Type | Bluetooth, USB |
| Customer Reviews | 4.0 4.0 out of 5 stars (5,414) |
| Date First Available | 3 October 2024 |
| Device interface - primary | Buttons |
| Display Type | No Display |
| Includes Rechargeable Battery | Yes |
| Item Dimensions LxWxH | 25 x 25 x 7 Millimeters |
| Item Weight | 5.2 g |
| Item model number | JZ90-54217-08 |
| Manufacturer | Oura |
| Memory Storage Capacity | 5 MB |
| Model | JZ90-54217-08 |
| Mounting Hardware | Oura Ring 4, Oura Ring 4 Charger, USB Cable, Information Booklet, Quick Start Guide |
| Number of items | 1 |
| Product Dimensions | 2.5 x 2.5 x 0.7 cm; 5.2 g |
| Special Features | Heart Rate Monitor, Activity Tracker |
| Wireless Type | Bluetooth |

## Product Details

- **Battery Cell Composition:** Lithium Polymer
- **Connectivity Technology:** Bluetooth, USB
- **Memory Storage Capacity:** 5 MB
- **Special Feature:** Heart Rate Monitor, Activity Tracker
- **Wireless Communication Standard:** Bluetooth

## Images

![Ring 4 - Silver - Size 8 - Smart Ring | Size First Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life - 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

### ⭐⭐⭐⭐⭐ Review
*by E***A on 28 January 2026*



### ⭐⭐⭐⭐ Review
*by D***A on 16 January 2026*

Delivery took longer than expected, but i am happy with the ring. It does exactly what they advertise. Its a nice to have.

### ⭐⭐⭐⭐⭐ Review
*by M***D on 18 October 2025*

I hesitated for a while before investing in this gadget. And I love my Gadgets! but after doing some homework on the competition, I decided to jump for it. First, the fit and metal colour are great, I couldn't be happier, the quality and durability is insane, i do everything with it, I rarely take it off. The connectivity to my Samsung Z Fold6 was flawless, no hiccups, plus, everything you open the app, it updates in no time. so great compatibility. Now, you need to give it time to gather data about you, of course... it will not happen overnight which is quite right, but the intel you get afterwards is great. Your body age, sleep quality, energy available, your stress, it is such a great little ring. it is a lot of money for such a small device but the value for money is worth it. I highly recommend it if you are curious and want to be nudge in the right direction for better health.

## Frequently Bought Together

- Oura Ring 4 - Silver - Size 8 - 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
- ZOOROO 2-Pack 14K Gold Plated Stacking Rings for Oura Gen 4/Oura Gen 3, Cubic Zirconia Simulated Diamond Oura Ring Stack for Women

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**Shop now:** [https://www.desertcart.lk/products/723716256-ring-4-silver-size-8-smart-ring-size-first-ring](https://www.desertcart.lk/products/723716256-ring-4-silver-size-8-smart-ring-size-first-ring)

---

*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-22*