---
product_id: 661723505
title: "- Oura Ring 4 - Silver - Size 8 - Size Before You Buy"
brand: "oura"
price: "S$609"
currency: SGD
in_stock: true
reviews_count: 8
category: "Oura"
url: https://www.desertcart.sg/products/661723505-oura-ring-4-silver-size-8-size-before-you-buy
store_origin: SG
region: Singapore
---

# Tracks 50+ health metrics Water resistant up to 100m Up to 8 days battery life - Oura Ring 4 - Silver - Size 8 - Size Before You Buy

**Brand:** oura
**Price:** S$609
**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 8 - Size Before You Buy by oura
- **How much does it cost?** S$609 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/661723505-oura-ring-4-silver-size-8-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

- • **Stay Unplugged Longer:** Up to 8 days of battery life means less charging, more living.
- • **Effortless All-Day Wear:** Lightweight titanium design with recessed sensors for comfort and durability.
- • **Seamless App Integration:** Syncs with 40+ apps including Apple Health and Google Health for holistic wellness.
- • **Precision Fit, No Guesswork:** Unique sizing kit ensures your perfect Oura Ring 4 fit every time.
- • **Health Insights on Your Finger:** Monitor sleep, stress, heart, and women’s health with 50+ smart metrics.

## Overview

The Oura Ring 4 Silver is a sleek, titanium smart ring designed for professionals who demand precise health tracking without compromising style. Featuring Smart Sensing technology, it continuously monitors over 50 health metrics including sleep, activity, stress, and women’s health. With up to 8 days of battery life, water resistance up to 100 meters, and seamless Bluetooth app integration, it offers a durable, comfortable, and insightful wellness companion. The unique sizing kit ensures a perfect fit, while included membership unlocks personalized health insights, making it a must-have wearable for the health-conscious millennial manager.

## 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: My life coach - I love my oura ring. I use it mostly for sleep tracking, and it is really useful. It has helped me pay attention to my body and its sleep needs. The craziest thing it does is tell me I’m getting sick days before I feel it. It recently told me my body was showing symptoms of strain and then a few days later I got very sick. It turned out to be Covid. Since having Covid it’s showing me that my heart rate is not recovering as quickly as I would like, so I plan to discuss with my doctor how I can manage this. I also prefer the step tracking on this compared to my Apple Watch because I have this on always and might go a good while in the am or even after a shower before putting my watch back on. As far as looks go, I’m happy with the silver. I had rose gold in the oura ring 3 and it did not hold up well at all. I’ve used stacker rings to dress it up at times, but I barely care anymore as it looks like real jewelry as it is.?
Review: I love it! - I don't like wearing wrist watches, so having a smart ring is PERFECT for me! I love how durable it is, it's easy to clean, and the app that comes with it is GREAT! The tracking on this thing is flawless and it uses light sensors to track my vitals, so it doesn't even feel like a smart device, just a regular ring! It also charges very quickly, so if I'm using the bathroom or taking a shower at home, I just pop it on the charger for 10-15 minutes and it's good for a few days! I only do it daily just to establish a good routine, and I have forgotten before and let the battery get low, but still haven't had the power die on me yet! I can see it being an issue for lifting weights since it's coated in stainless still and a little bulky, but otherwise very comfortable for other forms of exercise! I can also see it being a problem because of the red and green light sensors at night, it might be disruptive to light sleepers in a dark room, but I just keep my hands under my blankets or pillows, and I sleep just fine! It doesn't light up all the time, just periodically throughout the night. If the tiny lights at night might bother you, you can probably put a thick sock or a glove over your hand at night to block the light. I'm personally not inconvenienced by it at night, and I like that I can't feel anything when it checks my vitals (heart rate, blood oxygen, temperature, just to name a few). I wound up subscribing to the app anually because I really liked how easy it was to set up and how thorough its analysis was for my overall health. UPDATE: Recently I noticed the ring was draining too fast between charges and I actually needed to charge it everyday! I reached out to customer service via the app, they asked a few questions, and shipped me another one immediately! It was refurbished, not brand new, but it works like new and I would never have known the difference if they didn't tell me! I keep the old one as a backup just in case since they said I don't need to send it back. I basically haven't stopped wearing the Oura ring since I put it on, and I've used it on long walks, swimming (fully submerged in water), and for general daily activities and it works great! I wash it with soap and water when I wash my hands and take it off to give it an.wxtra good wipe down before popping it on the charger or putting it back on!

## 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 | B0D9WVSZ56 |
| Additional Features | Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight |
| Band Color | Silver |
| Band Material Type | Titanium |
| Battery Average Life | 5 days |
| Battery Cell Composition | Lithium Polymer |
| Battery Cell Type | Lithium Polymer |
| Battery Charge Time | 80 minutes |
| Best Sellers Rank | #1,028 in Electronics ( See Top 100 in Electronics ) #4 in Smart Rings |
| Brand | OURA |
| Built-In Media | Oura Ring 4, Oura Ring 4 Charger, USB Cable, Information Booklet, Quick Start Guide |
| Case Material Type | Titanium |
| Color | Silver |
| Communication Feature | App Integration, Bluetooth |
| Compatible Devices | Smartphone |
| Compatible Phone Models | Compatible with iOS and Android devices |
| Connectivity Technology | Bluetooth |
| Customer Reviews | 4.0 out of 5 stars 553 Reviews |
| Display Type | No Display |
| GPS | GPS Via Smartphone |
| GPS Geotagging Functionality | GPS Via Smartphone |
| Human Interface Input | Buttons |
| Item Dimensions | 0.98 x 0.98 x 0.28 inches |
| Item Dimensions D x W x H | 0.98"D x 0.98"W x 0.28"H |
| Item Weight | 5.2 Grams |
| Manufacturer | Oura |
| Memory Storage Capacity | 5 MB |
| Metrics Measured | Body Temperature, Menstrual Cycle, Sleep Duration, Stress |
| Model Number | JZ90-54217-08 |
| Shape | Round |
| Special Feature | Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight |
| Style Name | Metallic |
| Supported Application | Over 40 apps including Apple Health, Google Health Connect, Natural Cycles, Flo, Strava, & more |
| Supported Satellite Navigation System | GPS |
| Target Audience | Unisex Adults |
| Warranty Description | 1 Year Manufacturer |
| Warranty Type | Standard/Full |
| Water Resistance Depth | 100 Meters |
| Water Resistance Level | Water Resistant |
| Waterproof Rating | IP68 |
| Wearable Computer Type | Smart Ring |
| Wireless Communication Standard | Bluetooth |
| Wireless Compability | Bluetooth |

## Product Details

- **Battery Cell Composition:** Lithium Polymer
- **Brand:** OURA
- **Color:** Silver
- **Connectivity Technology:** Bluetooth
- **GPS:** GPS Via Smartphone
- **Memory Storage Capacity:** 5 MB
- **Shape:** Round
- **Special Feature:** Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight
- **Style:** Metallic
- **Wireless Communication Standard:** Bluetooth

## Images

![- Oura Ring 4 - Silver - Size 8 - 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

### ⭐⭐⭐⭐⭐ My life coach
*by N***S on January 11, 2026*

I love my oura ring. I use it mostly for sleep tracking, and it is really useful. It has helped me pay attention to my body and its sleep needs. The craziest thing it does is tell me I’m getting sick days before I feel it. It recently told me my body was showing symptoms of strain and then a few days later I got very sick. It turned out to be Covid. Since having Covid it’s showing me that my heart rate is not recovering as quickly as I would like, so I plan to discuss with my doctor how I can manage this. I also prefer the step tracking on this compared to my Apple Watch because I have this on always and might go a good while in the am or even after a shower before putting my watch back on. As far as looks go, I’m happy with the silver. I had rose gold in the oura ring 3 and it did not hold up well at all. I’ve used stacker rings to dress it up at times, but I barely care anymore as it looks like real jewelry as it is.?

### ⭐⭐⭐⭐⭐ I love it!
*by A***K on June 13, 2025*

I don't like wearing wrist watches, so having a smart ring is PERFECT for me! I love how durable it is, it's easy to clean, and the app that comes with it is GREAT! The tracking on this thing is flawless and it uses light sensors to track my vitals, so it doesn't even feel like a smart device, just a regular ring! It also charges very quickly, so if I'm using the bathroom or taking a shower at home, I just pop it on the charger for 10-15 minutes and it's good for a few days! I only do it daily just to establish a good routine, and I have forgotten before and let the battery get low, but still haven't had the power die on me yet! I can see it being an issue for lifting weights since it's coated in stainless still and a little bulky, but otherwise very comfortable for other forms of exercise! I can also see it being a problem because of the red and green light sensors at night, it might be disruptive to light sleepers in a dark room, but I just keep my hands under my blankets or pillows, and I sleep just fine! It doesn't light up all the time, just periodically throughout the night. If the tiny lights at night might bother you, you can probably put a thick sock or a glove over your hand at night to block the light. I'm personally not inconvenienced by it at night, and I like that I can't feel anything when it checks my vitals (heart rate, blood oxygen, temperature, just to name a few). I wound up subscribing to the app anually because I really liked how easy it was to set up and how thorough its analysis was for my overall health. UPDATE: Recently I noticed the ring was draining too fast between charges and I actually needed to charge it everyday! I reached out to customer service via the app, they asked a few questions, and shipped me another one immediately! It was refurbished, not brand new, but it works like new and I would never have known the difference if they didn't tell me! I keep the old one as a backup just in case since they said I don't need to send it back. I basically haven't stopped wearing the Oura ring since I put it on, and I've used it on long walks, swimming (fully submerged in water), and for general daily activities and it works great! I wash it with soap and water when I wash my hands and take it off to give it an.wxtra good wipe down before popping it on the charger or putting it back on!

### ⭐ Worked for less than a year - out $500
*by D***E on January 30, 2026*

If I had known it would cost me over $500 to learn these lessons, of course I would not have bought this. It's 1 star on purpose - keep reading. So first of all, honestly, it works amazingly well - if you need it. Numbers come through accurate and complete on so many levels. It's a much smarter location than the wrist. Oh, but be careful about charging - it says 3 days, uh no. Charge it daily as their own documentation says within the app. Yes, that's what THEY tell you to do. Here's the reason for the 1 star: Buying from Amazon. Oura will support their rings for a year or more (I think). Amazon has a 30 day policy and per Oura's web site, if you buy from a 3rd party, their standard coverage is 90 days from Oura. My ring worked flawlessly for 11 months, and then poof - stopped. I contacted Oura who said "yeah, that qualifies for a replacement - who'd you buy it from? Not us you say?" Since it came from Amazon, we had to work with AMAZON return policies, not Oura. To make matters worse, the renewal time on the annual software contract didn't have a warning and renewed AFTER the ring was dead for the NEXT year (remember: broken ring?). When I contacted support (sort of - read on) to see if we could get it back - nope. So 2 years at $75/yr + $365 = $515. Pretty expensive for 11 months! Now we need to talk about support. I, like you, read the reviews of people getting replacements. Well, maybe that WAS the case - before. Now, they're so short staffed on support you can't talk to a live person - period. Chat responded quickly, but has no rights to refund or return or do anything. So you can set an appointment - oh, but there ARE no appointments. So you can call the return number on the order - oh, except the return number is a looped message telling you to go online. In other words - no support at ALL now. So here's my advice. First, if you buy from Amazon, you'd better purchase their warrantee. There's a very high risk that Oura will not help you. Even their own web site says their warranty is only 90 days - so you've been warned. If you buy from them, be ready not to be able to reach anyone if you have problems. Good luck to you. I hope you don't lose as much as we did.

## 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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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-28*