---
product_id: 658136083
title: "KASTWAVE Smart Ring, Waterproof Health Tracker, 19MM Fitness Tracker Ring with Heart Rate, Blood Oxygen, Temp, Steps, Distance, Calories, Sleep & Exercise Monitor, Compatible with IOS, Android, Silver"
brand: "kastwave"
price: "€ 35.58"
currency: EUR
in_stock: true
url: https://www.desertcart.fi/products/658136083-kastwave-smart-ring-waterproof-health-tracker-19mm-fitness-tracker-ring
store_origin: FI
region: Finland
---

# Fast 0.5h charging Waterproof for active lifestyles 3-5 days battery life KASTWAVE Smart Ring, Waterproof Health Tracker, 19MM Fitness Tracker Ring with Heart Rate, Blood Oxygen, Temp, Steps, Distance, Calories, Sleep & Exercise Monitor, Compatible with IOS, Android, Silver

**Brand:** kastwave
**Price:** € 35.58
**Availability:** ✅ In Stock

## Summary

> 💍 Elevate your health game with style and precision — the ring that never quits.

## Quick Answers

- **What is this?** KASTWAVE Smart Ring, Waterproof Health Tracker, 19MM Fitness Tracker Ring with Heart Rate, Blood Oxygen, Temp, Steps, Distance, Calories, Sleep & Exercise Monitor, Compatible with IOS, Android, Silver by kastwave
- **How much does it cost?** € 35.58 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/658136083-kastwave-smart-ring-waterproof-health-tracker-19mm-fitness-tracker-ring)

## Best For

- kastwave enthusiasts

## Why This Product

- Trusted kastwave brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Sleep Smarter:** Personalized sleep stage analysis helps you optimize rest and wake up refreshed every day.
- • **Multi-Sport Mode:** From swimming to yoga, track your steps, calories & distance with precision tailored to your workout.
- • **Power Up in Minutes:** Ultra-fast charging means less downtime and more time crushing your fitness goals.
- • **Sleek Meets Durable:** Modern silver design that’s waterproof and built to keep up with your dynamic lifestyle.
- • **24/7 Health Insights:** Continuous heart rate, blood oxygen & temperature tracking keeps you ahead of your wellness game.

## Overview

The KASTWAVE Smart Ring is a 19mm waterproof fitness tracker designed for seamless health monitoring. It offers real-time heart rate, blood oxygen, temperature, and sleep tracking, supports multiple sports modes, and boasts a fast 0.5-hour charge with up to 5 days of battery life. Compatible with iOS and Android, its sleek silver design fits effortlessly into any professional or active lifestyle.

## Description

KASTWAVE Smart Ring, Waterproof Health Tracker, 19MM Fitness Tracker Ring with Heart Rate, Blood Oxygen, Temp, Steps, Distance, Calories, Sleep & Exercise Monitor, Compatible with IOS, Android, Silver

## Features

- 【Health Monitoring】 The Smart Ring tracks blood oxygen levels, heart rate, and sleep, providing on-demand and background readings day and night. Gain insights into your health management data and keep track of your well-being anytime, anywhere
- 【Your Ultimate Fitness Partner】 Choose from activities like swimming, yoga, cycling, and running. The smart ring tracks heart rate, steps, calories, and distance, allowing you to set exercise goals and monitor your body data in real time
- 【Sleep Tracking with Smart App】 The Sleep app helps you create a personalized sleep routine, tracking your sleep stages such as Core and Deep sleep. View sleep trends to understand your sleep patterns and achieve your sleep goals
- 【Fast Charging, Long Battery Life】 Equipped with an ultra-low power consumption chip, the ring charges in just 0.5 hours and provides 3-5 days of usage. Perfect for long trips or outdoor activities, ensuring your focus remains on your journey, not on charging
- 【Sleek and Durable Design】Complement your active lifestyle, the Smart Ring combines style with functionality. Its sleek, modern design pairs well with any outfit, making it a versatile accessory that seamlessly fits into your daily routine.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | KASTWAVE |
| Model Number | RV5637 |
| Package Dimensions | 14.3 x 10.8 x 3.2 cm; 60 g |
| Compatible Models | Smartphone |
| Special Features | Sleep Monitor |
| Item Weight | 60 g |

## Product Details

- **Operating system:** Android
- **Special features:** Sleep Monitor
- **Connectivity technology:** Bluetooth
- **Wireless communication standard:** Bluetooth
- **Battery cell composition:** Lithium Polymer

## Images

![KASTWAVE Smart Ring, Waterproof Health Tracker, 19MM Fitness Tracker Ring with Heart Rate, Blood Oxygen, Temp, Steps, Distance, Calories, Sleep & Exercise Monitor, Compatible with IOS, Android, Silver - Image 1](https://m.media-amazon.com/images/I/81tnsYLkFZL.jpg)
![KASTWAVE Smart Ring, Waterproof Health Tracker, 19MM Fitness Tracker Ring with Heart Rate, Blood Oxygen, Temp, Steps, Distance, Calories, Sleep & Exercise Monitor, Compatible with IOS, Android, Silver - Image 2](https://m.media-amazon.com/images/I/71K6VrYP7PL.jpg)
![KASTWAVE Smart Ring, Waterproof Health Tracker, 19MM Fitness Tracker Ring with Heart Rate, Blood Oxygen, Temp, Steps, Distance, Calories, Sleep & Exercise Monitor, Compatible with IOS, Android, Silver - Image 3](https://m.media-amazon.com/images/I/71EUPSNPJoL.jpg)
![KASTWAVE Smart Ring, Waterproof Health Tracker, 19MM Fitness Tracker Ring with Heart Rate, Blood Oxygen, Temp, Steps, Distance, Calories, Sleep & Exercise Monitor, Compatible with IOS, Android, Silver - Image 4](https://m.media-amazon.com/images/I/71hQmYlC-jL.jpg)
![KASTWAVE Smart Ring, Waterproof Health Tracker, 19MM Fitness Tracker Ring with Heart Rate, Blood Oxygen, Temp, Steps, Distance, Calories, Sleep & Exercise Monitor, Compatible with IOS, Android, Silver - Image 5](https://m.media-amazon.com/images/I/71ZXV2hNJvL.jpg)

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- KASTWAVE Smart Ring, Waterproof Health Tracker, 19MM Fitness Tracker Ring with Heart Rate, Blood Oxygen, Temp, Steps, Distance, Calories, Sleep & Exercise Monitor, Compatible with IOS, Android, Silver
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**Shop now:** [https://www.desertcart.fi/products/658136083-kastwave-smart-ring-waterproof-health-tracker-19mm-fitness-tracker-ring](https://www.desertcart.fi/products/658136083-kastwave-smart-ring-waterproof-health-tracker-19mm-fitness-tracker-ring)

---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-15*