---
product_id: 685582422
title: "Ring Gen2 - Size Before You Buy, Smart Ring for Women(Size 8)"
brand: "femometer"
price: "₨148754"
currency: LKR
in_stock: true
category: "Femometer"
url: https://www.desertcart.lk/products/685582422-ring-gen2-size-before-you-buy-smart-ring-for-women
store_origin: LK
region: Sri Lanka
---

# Pro sleep stage & blood oxygen insights 1,400+ nightly BBT measurements 24/7 heart rate & HRV tracking Ring Gen2 - Size Before You Buy, Smart Ring for Women(Size 8)

**Brand:** femometer
**Price:** ₨148754
**Availability:** ✅ In Stock

## Summary

> 💍 Own your health journey with the smartest ring on your finger.

## Quick Answers

- **What is this?** Ring Gen2 - Size Before You Buy, Smart Ring for Women(Size 8) by femometer
- **How much does it cost?** ₨148754 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/685582422-ring-gen2-size-before-you-buy-smart-ring-for-women)

## 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

- • **Power That Lasts:** Up to 35 days battery life with quick-charge case, lifetime app subscription, and seamless iOS/Android compatibility.
- • **Sleep Like a Pro:** Deep, Light, REM sleep stages plus blood oxygen monitoring deliver personalized sleep scores & tips.
- • **All-Day Health Vigilance:** Continuous heart rate, HRV, steps & calorie tracking synced to your lifetime-free femometer app.
- • **Elegance Meets Endurance:** Ultra-slim 2.7mm ceramic ring, water-resistant to 100m, featherlight 3.3g for 24/7 stylish wear.
- • **Cycle Tracking Revolution:** Advanced BBT tech with 1,400+ nightly temps ensures pinpoint ovulation & cycle predictions trusted by 15M+ women.

## Overview

The femometer Ring Gen2 is a sleek, ceramic smart ring designed for women to monitor heart rate, HRV, sleep stages, blood oxygen, and fertility cycles with revolutionary BBT technology. It offers continuous 24/7 health tracking, professional sleep insights, and up to 35 days of battery life, all synced to a lifetime-free app trusted by over 15 million women worldwide. Durable, water-resistant, and ultra-lightweight, it’s the ultimate health companion for the modern professional woman.

## Description

desertcart.com: femometer Ring Gen2 - Size Before You Buy, Smart Ring for Women(Size 8) | Sleep, Heart Rate & Cycle Monitoring, No Subscription, Women's Health & Fertility Tracker with BBT Technology : Electronics

## 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 | B0DJ31JPRB |
| Additional Features | Activity Tracker, Cycle Tracking, Lightweight, Wireless Charging |
| Age Range Description | Adult |
| Band Material Type | Ceramic, Aluminum |
| Battery Average Life | 7 days |
| Battery Capacity | 21 milliamp_hours |
| Battery Cell Type | Lithium Ion |
| Best Sellers Rank | #9,584 in Electronics ( See Top 100 in Electronics ) #31 in Smart Rings |
| Brand | femometer |
| Built-In Media | User Manual |
| Color | Gold |
| Communication Feature | Bluetooth |
| Compatible Devices | Smartphone |
| Compatible Phone Models | All current iPhone models, all current Android models |
| Connectivity Technology | Bluetooth |
| Customer Reviews | 4.0 4.0 out of 5 stars (309) |
| Display Type | No Display |
| GPS Geotagging Functionality | No GPS |
| Human Interface Input | Buttons |
| Item Dimensions D x W x H | 0.11"D x 0.11"W x 0.11"H |
| Item Weight | 3.7 g |
| Manufacturer | LOLLIPOP TECHNOLOGY (HANGZHOU) CO., LTD |
| Metrics Measured | Heart Rate Monitor, Sleep Duration, Body Temperature, Activity Tracker |
| Model Number | 42616f15-b2f2-4c4a-9129-287f3771f45c |
| Operating System | Wear OS 3.0 |
| Screen Size | 1 inches |
| Shape | Round |
| Style Name | Ring Only |
| Supported Application | Alarm, Fitness Tracker, Heart Rate Monitor, Sleep Monitor, Time Display |
| Target Audience | Girls, Women |
| UPC | 810115236429 |
| Unit Count | 1 Count |
| Warranty Description | 1 Year Manufacturer |
| Warranty Type | Standard |
| Water Resistance Depth | 1.5 meters |
| Water Resistance Level | Water Resistant |
| Wearable Computer Type | Smart Ring |
| Wireless Compability | Bluetooth |

## 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 inches
- **Shape:** Round
- **Special Feature:** Activity Tracker, Cycle Tracking, Lightweight, Wireless Charging
- **Wireless Communication Standard:** Bluetooth

## Images

![Ring Gen2 - Size Before You Buy, Smart Ring for Women(Size 8) - Image 1](https://m.media-amazon.com/images/I/51BYpkcMRZL.jpg)

## Available Options

This product comes in different **Color, Size** options.

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**Shop now:** [https://www.desertcart.lk/products/685582422-ring-gen2-size-before-you-buy-smart-ring-for-women](https://www.desertcart.lk/products/685582422-ring-gen2-size-before-you-buy-smart-ring-for-women)

---

*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-11-03*