---
product_id: 685582422
title: "femometer Smart Ring Gen2 Ceramic | Sleep, Heart Rate & Cycle Monitoring with Free Subscription | Women's Health & Fertility Tracker with BBT Technology | Size Before You Buy - Size 7"
brand: "femometer"
price: "1905 kr"
currency: DKK
in_stock: false
reviews_count: 13
url: https://www.desertcart.dk/products/685582422-femometer-smart-ring-gen2-ceramic-sleep-heart-rate-and-cycle
store_origin: DK
region: Denmark
---

# Water-resistant up to 100m 35-day battery life with fast charging 1400+ nightly BBT readings femometer Smart Ring Gen2 Ceramic | Sleep, Heart Rate & Cycle Monitoring with Free Subscription | Women's Health & Fertility Tracker with BBT Technology | Size Before You Buy - Size 7

**Brand:** femometer
**Price:** 1905 kr
**Availability:** ❌ Out of Stock

## Summary

> 💍 Track your health in style — because your body deserves the smartest ring.

## Quick Answers

- **What is this?** femometer Smart Ring Gen2 Ceramic | Sleep, Heart Rate & Cycle Monitoring with Free Subscription | Women's Health & Fertility Tracker with BBT Technology | Size Before You Buy - Size 7 by femometer
- **How much does it cost?** 1905 kr with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/685582422-femometer-smart-ring-gen2-ceramic-sleep-heart-rate-and-cycle)

## Best For

- femometer enthusiasts

## Why This Product

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

## Key Features

- • **Sleep Like a Pro:** Professional-grade sleep stage analysis with blood oxygen monitoring for personalized rest optimization.
- • **Sleek & Durable Design:** Ultra-thin 2.7mm ceramic ring, feather-light at 3.3g, scratch-resistant and water-ready for 24/7 wear.
- • **All-Day Health Insights:** Continuous heart rate & HRV monitoring plus daily activity tracking keep your wellness goals on point.
- • **Effortless Connectivity:** Lifetime free femometer app subscription, seamless iOS/Android sync, plus 35-day battery with quick recharge.
- • **Precision Cycle Tracking:** Revolutionary BBT tech delivers ultra-accurate ovulation and cycle predictions trusted by 15M+ women worldwide.

## Overview

The femometer Smart Ring Gen2 Ceramic is a cutting-edge wearable designed for women’s health, combining continuous heart rate, HRV, sleep stage, blood oxygen, and advanced basal body temperature (BBT) tracking. With over 1,400 nightly temperature measurements, it offers precise fertility and cycle predictions. Crafted from premium ceramic with a lightweight, ultra-thin profile, it’s water-resistant up to 100m and built for 24/7 comfort. The ring pairs seamlessly with the lifetime free femometer app, supports iOS and Android, and boasts a 35-day battery life with fast charging, backed by a 1-year warranty and ongoing firmware updates.

## Description

desertcart.com: femometer Smart Ring Gen2 Ceramic | Sleep, Heart Rate & Cycle Monitoring with Free Subscription | Women's Health & Fertility Tracker with BBT Technology | Size Before You Buy - Size 7 : Electronics

Review: Easy use - I love this ring. The color combination gives it a feminine look. It is very comfortable and light weight. The free app is easy to use and informative. My cycle tracking and predictions are accurate. The batter life is super with charging during showers. The connectivity and speed of sync is great. This is a great functioning ring!
Review: amazing product!! - loooove this product so much! my femometer has changed the game for me when it comes to tracking my cycle and other health data. it is very easy to use and is so accurate! typically, for biometric rings it is advised to wait at least 60 days after purchase for accurate female data, however, my femometer has been accurate since the very start! that impressed me right off the bat. it holds a charge for up to 4-5 days and then when you put it in the charging case it charges fully within a couple hours! i love how slim the ring is. it is very comfortable and most of the time i barely even notice that i’m wearing it. i love that there is no app subscription. i would 100% recommend this to any woman who wants to track their cycles or even just their sleep/health data.

## Features

- 24/7 HEALTH COMPANION: Continuous heart rate monitoring and HRV tracking provide stress insights and health trends. Track daily activity, steps, and calorie burn. All health data syncs seamlessly with the lifetime free femometer app.
- PROFESSIONAL SLEEP INSIGHTS: Track sleep stages (Deep, Light, REM), blood oxygen levels while you rest. Get detailed sleep scores and personalized recommendations.
- ADVANCED CYCLE TRACKING: Revolutionary BBT technology with 1,400+ nightly temperature measurements provides accurate cycle predictions and ovulation detection. Part of trusted femometer ecosystem with 15M+ women worldwide.
- COMFORT MEETS ELEGANCE: Just 2.7mm. Premium ceramic exterior with aluminum core ensures durability while weighing only 3.3g. Scratch-resistant, water-resistant to 100m, and designed for 24/7 wear. Size First with femometer Sizing Kit.
- SIMPLE & RELIABLE: Up to 35-day battery life with quick charging case (stores 5 full charges). Pair with femometer app to get lifetime subscription. Compatible with iOS and Android. Includes 1-year warranty and dedicated customer support. Regular firmware updates ensure continuous improvement.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DJ32SYQ8 |
| Batteries | 2 C batteries required. (included) |
| Best Sellers Rank | #8,431 in Electronics ( See Top 100 in Electronics ) #26 in Smart Rings |
| Customer Reviews | 4.0 4.0 out of 5 stars (192) |
| Date First Available | September 27, 2024 |
| Item Weight | 3.5 Grams |
| Item model number | femometer Smart Ring Gen2 |
| Manufacturer | LOLLIPOP TECHNOLOGY (HANGZHOU) CO., LTD |
| Package Dimensions | 3.31 x 3.31 x 2.52 inches |
| Standing screen display size | 1.0 |

## Product Details

- **Battery Capacity:** 21 Milliamp Hours
- **Battery Cell Composition:** Lithium Ion
- **Brand:** femometer
- **Connectivity Technology:** Bluetooth
- **GPS:** No GPS
- **Operating System:** Wear OS 3.0
- **Screen Size:** 1.0
- **Shape:** Round
- **Special Feature:** Activity Tracker
- **Wireless Communication Standard:** Bluetooth

## Images

![femometer Smart Ring Gen2 Ceramic | Sleep, Heart Rate & Cycle Monitoring with Free Subscription | Women's Health & Fertility Tracker with BBT Technology | Size Before You Buy - Size 7 - Image 1](https://m.media-amazon.com/images/I/611NiZSD87L.jpg)
![femometer Smart Ring Gen2 Ceramic | Sleep, Heart Rate & Cycle Monitoring with Free Subscription | Women's Health & Fertility Tracker with BBT Technology | Size Before You Buy - Size 7 - Image 2](https://m.media-amazon.com/images/I/61RwlrrDI2L.jpg)
![femometer Smart Ring Gen2 Ceramic | Sleep, Heart Rate & Cycle Monitoring with Free Subscription | Women's Health & Fertility Tracker with BBT Technology | Size Before You Buy - Size 7 - Image 3](https://m.media-amazon.com/images/I/61T-7duampL.jpg)
![femometer Smart Ring Gen2 Ceramic | Sleep, Heart Rate & Cycle Monitoring with Free Subscription | Women's Health & Fertility Tracker with BBT Technology | Size Before You Buy - Size 7 - Image 4](https://m.media-amazon.com/images/I/61i-iutcvKL.jpg)
![femometer Smart Ring Gen2 Ceramic | Sleep, Heart Rate & Cycle Monitoring with Free Subscription | Women's Health & Fertility Tracker with BBT Technology | Size Before You Buy - Size 7 - Image 5](https://m.media-amazon.com/images/I/61lBZtOYE8L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy use
*by J***D on January 20, 2026*

I love this ring. The color combination gives it a feminine look. It is very comfortable and light weight. The free app is easy to use and informative. My cycle tracking and predictions are accurate. The batter life is super with charging during showers. The connectivity and speed of sync is great. This is a great functioning ring!

### ⭐⭐⭐⭐⭐ amazing product!!
*by J***H on July 17, 2025*

loooove this product so much! my femometer has changed the game for me when it comes to tracking my cycle and other health data. it is very easy to use and is so accurate! typically, for biometric rings it is advised to wait at least 60 days after purchase for accurate female data, however, my femometer has been accurate since the very start! that impressed me right off the bat. it holds a charge for up to 4-5 days and then when you put it in the charging case it charges fully within a couple hours! i love how slim the ring is. it is very comfortable and most of the time i barely even notice that i’m wearing it. i love that there is no app subscription. i would 100% recommend this to any woman who wants to track their cycles or even just their sleep/health data.

### ⭐⭐⭐⭐ Should I be worried?
*by C***M on December 11, 2025*

So far I absolutely do love the ring! I wear it on my middle finger and grounded the sizing was a little weird overly I'm satisfied with it. But yesterday, the skin of it I guess you can call it begin to peel off I had to use super glue what a dry a little and then put it back in place. Overall though everything is still working fine the charge life is all that great but yeah!. Sleep tracking is very insightful and I would say that it's the connectivity it can be slow at times but it works. Overall I want to say it's pretty accurate though I'm worried about the durability.

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**Shop now:** [https://www.desertcart.dk/products/685582422-femometer-smart-ring-gen2-ceramic-sleep-heart-rate-and-cycle](https://www.desertcart.dk/products/685582422-femometer-smart-ring-gen2-ceramic-sleep-heart-rate-and-cycle)

---

*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-04*