---
product_id: 661766709
title: "Oura Ring 4 - Silver - Size 7 - Size Before You Buy"
brand: "oura"
price: "S$611"
currency: SGD
in_stock: true
reviews_count: 13
category: "Oura"
url: https://www.desertcart.sg/products/661766709-oura-ring-4-silver-size-7-size-before-you-buy
store_origin: SG
region: Singapore
---

# 8-day battery life 50+ health metrics tracked Bluetooth connectivity Oura Ring 4 - Silver - Size 7 - Size Before You Buy

**Brand:** oura
**Price:** S$611
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Oura Ring 4 - Silver - Size 7 - Size Before You Buy by oura
- **How much does it cost?** S$611 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/661766709-oura-ring-4-silver-size-7-size-before-you-buy)

## 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

- • **Effortless Elegance:** Sleek silver ceramic design blends durability with refined style—wear it anywhere, from boardroom to gym.
- • **All-Day Smart Sensing:** Tracks 50+ health metrics including sleep, heart rate, stress, and women’s health with adaptive Smart Sensing technology.
- • **FSA/HSA Eligible Wellness:** Invest in your health with tax-advantaged funds—Oura Ring 4 qualifies for HSA/FSA purchases.
- • **Stay Powered, Stay Present:** Up to 8 days of battery life means no constant charging distractions—focus on living, not your device.
- • **Precision Fit, No Guesswork:** Unique sizing kit ensures your Oura Ring 4 fits perfectly—because your health data deserves accuracy.

## Overview

The Oura Ring 4 in Silver is a cutting-edge smart ring designed for professionals who demand precision and style. Featuring Smart Sensing technology, it continuously tracks over 50 health metrics including sleep, heart rate variability, stress, and women’s health. Its durable ceramic build offers a sleek, comfortable fit, while an 8-day battery life keeps you unplugged longer. The ring requires a unique sizing kit for perfect fit and includes a complimentary first-month membership to the Oura app for personalized insights. Eligible for HSA/FSA, it’s the ultimate wearable for data-driven wellness and recovery.

## Description

Oura Ring 4 Ceramic is a modern expression of our revolutionary smart ring technology, blending refined elegance with everyday durability. The high-performance ceramic exterior is designed to keep up with you. The Ceramic Collection is available in sizes 4-15 and three unique colors: Petal, Tide and Cloud. Each new color is built to accent your style and personality. This colorful new take comes with the same cutting-edge technology of Oura Ring 4. Track over 50 health metrics and get personalized insights into your sleep, activity, readiness, stress, heart health, metabolic health, women's health and more. It is built around a breakthrough sensing technology, Smart Sensing, which adapts to your finger to deliver accurate, continuous data. With 5-8 days of battery life, you'll see a complete picture of your health. It's designed with recessed sensors on the interior, making it comfortable and gentle, even on sensitive skin. Oura Ring is FSA/HSA Eligible — we can accept FSA or HSA funds for the following: Oura Ring, additional chargers, and shipping. Oura Ring 4 Ceramic Polishing Pad: Keep your Oura Ring 4 Ceramic looking like new with the Ceramic Polishing Pad, redeemable once you sync your purchase in the Oura App. Due to the hardness of the zirconia ceramic, it can take on the color of softer metals, like a dumbbell or cookware. Over time, you may notice grey marks on your Oura Ring 4 Ceramic. Rest assured, it's not damaged — it's evidence of a metal transfer and easy to remove with proper cleaning. Use caution when handling metal objects and consider removing your Oura Ring for some activities. The Oura Ring 4 Ceramic Polishing Pad is your partner in keeping your ring in top condition. IMPORTANT: Size yourself with the Oura Ring Sizing Kit before you buy — Oura Rings are not US standard sizing, and finding the right size will result in the best experience possible. With a sizing kit purchase, a credit will automatically be applied to your Oura Ring at checkout.

Review: Best health tracker I’ve used for sleep and recovery - The Oura Ring has been genuinely useful for tracking my sleep, HRV, resting heart rate and recovery trends. The data feels more accurate and meaningful than what I got from wrist trackers, and since it’s tiny and comfortable I forget I’m wearing it. The app breaks everything down in a clear way and makes it easy to spot patterns (stress, hydration, workouts, etc.). Battery life is solid and lasts several days before charging. It’s a premium device for sure, but if you care about sleep and recovery data more than steps and notifications, it’s worth it.
Review: Amazing features - The Oura ring has a ton of features. Wear it for two weeks straight for best results. It can track your body temp, heart rate, oxygen, calories burned, steps taken, it takes data and gives you a general readiness score. I love how it can track your sleep patterns and even let you know if there are concerning breath patterns during sleep. It’s a little bulky for small hands, but you get used to it. It’s very easy to set up and use right away. It does get scratches on it if you wear it consistently. It seems durable as far as it’s not going to break or crack. I recommend taking it off if doing any heavy lifting, long term washing etc… it’s comfortable to wear but takes a little getting used to if you don’t wear rings often. I recommend wearing the sizers for a couple days to see which finger you’re most comfortable with. The sizers are perfect for determining your exact oura ring size. Do not go off your usual ring size as this ring is different.

## 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 | B0D9WW6RPJ |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Best Sellers Rank | #2,025 in Electronics ( See Top 100 in Electronics ) #11 in Smart Rings |
| Color | Silver |
| Connectivity technologies | Bluetooth |
| Customer Reviews | 4.1 4.1 out of 5 stars (296) |
| Date First Available | October 3, 2024 |
| GPS | GPS Via Smartphone |
| Human Interface Input | Buttons |
| Item Weight | 6.3 ounces |
| Item model number | JZ90-54217-07 |
| Manufacturer | Oura |
| Memory Storage Capacity | 4 GB |
| Other display features | Wireless |
| Product Dimensions | 0.94 x 0.94 x 0.28 inches |
| Ram Memory Installed Size | 512 KB |
| Special features | Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight |
| Whats in the box | Oura Ring 4, Oura Ring 4 Charger, USB Cable, Information Booklet, Quick Start Guide |

## Product Details

- **Battery Capacity:** 16
- **Battery Cell Composition:** Lithium Polymer
- **Brand:** OURA
- **Connectivity Technology:** Bluetooth
- **GPS:** GPS Via Smartphone
- **Memory Storage Capacity:** 4 GB
- **Shape:** Round
- **Special Feature:** Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight
- **Style:** Metallic
- **Wireless Communication Standard:** Bluetooth

## Images

![Oura Ring 4 - Silver - Size 7 - Size Before You Buy - Image 1](https://m.media-amazon.com/images/I/51ul5++ZdWL.jpg)

## 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

### ⭐⭐⭐⭐⭐ Best health tracker I’ve used for sleep and recovery
*by H***R on January 21, 2026*

The Oura Ring has been genuinely useful for tracking my sleep, HRV, resting heart rate and recovery trends. The data feels more accurate and meaningful than what I got from wrist trackers, and since it’s tiny and comfortable I forget I’m wearing it. The app breaks everything down in a clear way and makes it easy to spot patterns (stress, hydration, workouts, etc.). Battery life is solid and lasts several days before charging. It’s a premium device for sure, but if you care about sleep and recovery data more than steps and notifications, it’s worth it.

### ⭐⭐⭐⭐⭐ Amazing features
*by J***N on February 5, 2026*

The Oura ring has a ton of features. Wear it for two weeks straight for best results. It can track your body temp, heart rate, oxygen, calories burned, steps taken, it takes data and gives you a general readiness score. I love how it can track your sleep patterns and even let you know if there are concerning breath patterns during sleep. It’s a little bulky for small hands, but you get used to it. It’s very easy to set up and use right away. It does get scratches on it if you wear it consistently. It seems durable as far as it’s not going to break or crack. I recommend taking it off if doing any heavy lifting, long term washing etc… it’s comfortable to wear but takes a little getting used to if you don’t wear rings often. I recommend wearing the sizers for a couple days to see which finger you’re most comfortable with. The sizers are perfect for determining your exact oura ring size. Do not go off your usual ring size as this ring is different.

### ⭐ Not worth the money
*by H***S on November 25, 2025*

Very unhappy with this ring .. it’s less than a year old and doesn’t work properly constantly running out of battery doesn’t even last a day then it keeps saying it can’t communicate with app and put on charger … very disappointed.. I am going to try a cheaper one and see if they are any better and all the extra charges for app .. my Apple Watch is much better

## Frequently Bought Together

- Oura Ring 4 - Silver - Size 7 - 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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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-03-01*