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  • Size: 14
  • Sleep & Rest | Heart Health | Stress | Movement | Women’s Health | Metabolic
  • Integrates with 40+ Apps | AI-powered Tools | Automatic Firmware Updates via Oura App
  • Seamless Titanium Interior | Non-allergenic Titanium on Inner & Outer Surfaces
  • Upto 8 Days Battery Life
  • Water Resistant
  • 2 Years Warranty

Specifications

  • Product Category

    • Ideal For

    • Unisex
    • Wearable Device Type

    • Smart Ring
    • Compatible Devices

    • Smartphones
    • Device Connection Type

    • Bluetooth
  • Manufacturer Details

    • Brand

    • Oura
    • Model Series

    • Ring 4
    • Model Number

    • JZ90-54144-14
  • Product Dimensions (Open)

    • Dimensions In CM (WxDxH)

    • 0.79 x 0.79 x 0.28
    • Product Weight

    • 5 g
    • Dimensions In Inches (WxDxH)

    • 0.31 x 0.31 x 0.11
  • Features & Functions

    • Smartphone Application Controls

    • Automatic Firmware Updates Via Oura App, Integrates with 40+ Apps
    • Additional Features/Functions

    • Track Over 50 Health and Wellness Metrics, Stress & Women’s Health, Readiness, EMF Safe, Supports Airplane Mode, Metabolic, Sleep & Rest
    • Health Tracker

    • Sleep Monitor | Heart Rate
    • Features

    • Sleep Monitor | Heart Rate
    • Sensors

    • Red & Infrared LEDs Measure Blood Oxygen Levels, Green & Infrared LEDs Alternate to Measure Heart Rate & Heart Rate Variability 24/7 & Respiration Rate, Digital Sensor Measures Temperature Trends, Accelerometer Tracks Movement & Activity 24/7
    • Compatible OS

    • Android OS | iOS
    • Touch Controls

    • No
  • Physical Attributes

    • Ring Size

    • 14
  • Network Connectivity

    • Bluetooth Specifications

    • BLE
    • Bluetooth Supported

    • Yes
    • Wi-Fi Supported

    • No
  • Additional Features

    • Additional Technology Supported

    • Smart Sensing Technology
  • Battery Details

    • Maximum Battery Life

    • 8 Days
    • Standard Battery Life

    • 5-8 Days
  • Charging

    • Wireless Charging Options

    • Yes
    • Battery Charge Time

    • Charges in 20 - 80 Minutes
    • Charging Pin Type

    • Charging Dock
  • Materials & Durability

    • Resistance Type

    • Water Resistant
    • Resistance Features

    • Water Resistant up to 100m/328 ft
    • Body Material

    • Titanium
  • Aesthetics

    • Brand Color

    • Black
    • Color

    • BLACK
  • In The Box

    • Documents

    • 1 x Warranty Card
    • Main product

    • Smart Ring
    • Accessories

    • 1 x Charger, 1 x USB-C Cable
    • Package Includes

    • 1 x Smart Ring, 1 x Charger, 1 x USB-C Cable, 1 x Warranty Card
    • Generic Name

    • Smart Ring
  • Packaged Dimensions

  • After Sales & Services

    • Warranty on Main Product

    • 24 Months
    • Warranty Type

    • Carry-In
    • Standard Warranty Includes

    • Manufacturing Defects
    • Standard Warranty Excludes

    • Physical Damage
      • Installation & Demo applicable

      • No
    • Certification

      • Additional Certifications

      • FCC Certified
    • Company Contact Information

      • Customer Support Number

      • 18005727662
      • Customer Support Email

      • customersupport@croma.com
      • Manufacturer/Importer/Marketer Name & Address

      • Manufacturer Name & Address: Valdmae poik 3, Tanassilma,76406 Saku vald, Estonia | Importer Name & Address: RASHI PERIPHERALS LIMITED Rashi Complex, Bldg.No.1,1A, 2 & 3, Survey No.186, Poman, Dist: Palghar, Maharashtra - 401208
      • Country of Origin

      • Estonia
      • Country of Brand Origin

      • Finland
    • Croma Service Promise

      • Customer Support Email

      • customersupport@croma.com
      • Registered Name and Address

      • Infiniti Retail Ltd. - Unit No. 701 & 702, 7th Floor, Kaledonia, Sahar Road, Andheri (East); Mumbai - 400069. India
      • Customer Support Number

      • 1800 572 7662
      • Customer Care Contact Person

      • Grievance Officer

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    Overview

    Advanced Sleep Evaluation

    Engineered to assess total sleep duration, heart rate variability, nighttime movement, and sleep consistency, this Oura Ring 4 Size 14 Smart Ring delivers a comprehensive sleep score every morning. In addition, it breaks down deep, REM, and light sleep stages for clearer understanding. Therefore, you can evaluate your rest patterns and make informed adjustments to your nightly routine.


    Comprehensive Health Insights

    Featuring 24/7 heart rate monitoring, blood oxygen sensing, and temperature trend measurement, this size 14 smart ring captures ongoing physiological data throughout the day and night. As a result, you can gain insight into how lifestyle habits and environmental factors influence your overall wellness. Metrics such as cardiovascular age, cardio capacity, and heart rate variability support long-term health awareness.


    Daily Readiness Insights

    Providing a personalised Readiness Score, this smart ring analyses sleep quality, heart rate, and body temperature trends to reflect your recovery level. Hence, you can decide whether to prioritise intense activity or restorative downtime based on your body’s signals.


    Intelligent Activity Tracking

    Supporting automatic detection of over 40 activities, this smart ring records movement along with heart rate data. Moreover, adaptive daily activity goals respond to your recovery status. Therefore, you can maintain a steady balance between movement and rest.


    Daytime Stress Monitoring

    Tracking stress levels, cumulative strain, and recovery responses, this ring highlights how your body reacts to daily demands. Thus, you can recognise patterns, understand triggers, and build resilience over time.


    Cycle and Wellness Insights

    Using temperature pattern analysis, this smart ring provides menstrual cycle insights and period predictions. In addition, it syncs with compatible apps such as Natural Cycles and Clue through the Oura app. Hence, you can monitor reproductive health data with consistent updates.


    Seamless App Integration

    Compatible with the Oura app on Android and iOS, this ring connects via Bluetooth BLE and supports automatic firmware updates. With 5-8 days of battery life and aeroplane mode availability, you can rely on uninterrupted tracking across daily routines.


    Water-Ready Construction

    Built with water resistance up to 100m, this smart ring supports use during workouts, showers, and swimming sessions. The resilient structure allows continuous wear without concern during regular water exposure.


    Compact and Light

    Weighing between 3.3g and 5.2g depending on the size, this smart ring maintains a light and steady presence on your finger. Its balanced design ensures comfortable extended use, allowing you to monitor your wellbeing consistently without interruption.


    Refined Titanium Build

    Constructed from titanium, this Oura Ring 4 Size 14 Smart Ring features a slim and lightweight profile for everyday comfort. Therefore, you can wear it throughout work, rest, and activity with a natural feel on your finger.

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