---
product_id: 481586921
title: "eufy Security Baby Monitor Baby Smart Sock with 2.4 GHz Wi-Fi, Track Sleep Patterns, Naps, Heart Rate, No Monthly Fee"
brand: "eufy security"
price: "¥1960"
currency: JPY
in_stock: false
reviews_count: 6
url: https://www.desertcart.jp/products/481586921-eufy-security-baby-monitor-baby-smart-sock-with-2-4
store_origin: JP
region: Japan
---

# Real-time heart rate monitoring Daily sleep pattern reports 2.4 GHz Wi-Fi for seamless connectivity eufy Security Baby Monitor Baby Smart Sock with 2.4 GHz Wi-Fi, Track Sleep Patterns, Naps, Heart Rate, No Monthly Fee

**Brand:** eufy security
**Price:** ¥1960
**Availability:** ❌ Out of Stock

## Summary

> 👶 Monitor smarter, parent better — because every heartbeat counts!

## Quick Answers

- **What is this?** eufy Security Baby Monitor Baby Smart Sock with 2.4 GHz Wi-Fi, Track Sleep Patterns, Naps, Heart Rate, No Monthly Fee by eufy security
- **How much does it cost?** ¥1960 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/481586921-eufy-security-baby-monitor-baby-smart-sock-with-2-4)

## Best For

- eufy security enthusiasts

## Why This Product

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

## Key Features

- • **Precision You Can Trust:** Fresnel lens tech delivers highly accurate vitals monitoring for peace of mind.
- • **No Hidden Fees, Just Care:** Enjoy all features with zero monthly charges—smart parenting without the extra cost.
- • **Stay Connected, Stay Calm:** Instant alerts on your phone and smart base keep you in the loop wherever you are.
- • **Insightful Sleep Analytics:** Track naps and sleep patterns with detailed daily reports to optimize your baby's rest.
- • **Built to Last Through Parenthood:** Reliable performance proven over months of daily use, with minimal disconnections.

## Overview

The eufy Security Baby Smart Sock is a Wi-Fi enabled baby monitor that tracks your infant’s heart rate and sleep patterns using advanced Fresnel lens technology. It provides real-time notifications and detailed daily reports without any monthly fees, ensuring parents stay connected and informed with reliable, accurate data. Designed for newborns through toddler sizes, it offers durable, long-lasting performance backed by strong customer satisfaction.

## Description

eufy Security Baby Monitor Baby Smart Sock with 2.4 GHz Wi-Fi, Track Sleep Patterns, Naps, Heart Rate, No Monthly Fee : desertcart.ae: Baby Products

Review: Unreliable product and no liability from seller or brand - I bought the Eufy Sock and used it for five months. After that, it stopped connecting to the base and stopped showing readings. I contacted customer support and sent a video as they requested. They sent me the same troubleshooting instructions twice, which I followed, but it still didn’t work. Instead of honoring the warranty, they told me to contact the seller. The seller said they’re not responsible and told me to contact the brand. The brand then told me to contact the seller again. After being pushed back and forth with no solution, I gave up. I cannot use the product anymore, and my daughter, who is six months old, cannot use it either. This is a very expensive product, and the company refuses to take any responsibility. Their customer service is the worst I’ve ever experienced. They do not care about their customers or the safety and usability of their products. I will not buy from Eufy again, and I will not recommend any of their products.
Review: used product

## Features

- Monitor What Matters Most: Get instant notifications from your phone and the smart base every time your baby is awake or fussy. FSA/HSA available.
- Accurate Readings: Using a Fresnel lens, Smart Sock detects and reads your baby's vitals more accurately.
- Sleep Patterns and Daily Reports: Smart Sock Baby Monitor keeps track of your baby's real-time sleep data, monitors heart rate, and provides daily sleep reports. HSA/FSA eligible.
- Always Stay Connected: Smart Sock's base is capable of receiving strong data signals even when you're not in the same room as your baby. Rest easy knowing that you'll be sent prompts or notifications about your little one.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B099RYB9RR |
| Battery Average Life | 24 Hours |
| Battery Description | Lithium-Ion |
| Best Sellers Rank | #18,665 in Baby Products ( See Top 100 in Baby Products ) #38 in Smart Baby Monitors |
| Brand Name | eufy Security |
| Color | blue |
| Compatible Devices | Smartphones |
| Customer Reviews | 4.2 4.2 out of 5 stars (755) |
| Included Components | Smart Sock; Sock Base |
| Item Dimensions L x W x H | 23L x 17.5W x 9.8H centimeters |
| Manufacturer | eufy |
| Manufacturer Part Number | E8340132 |
| Material Type | Nylon |
| Model Number | T8340 |
| Sensor Type | Optical |
| Size | Newborn, Small, Medium, Large |
| Team Name | eufy |
| UPC | 194644078805 |

## Product Details

- **Brand:** eufy Security
- **Colour:** blue
- **Compatible devices:** Smartphones
- **Material:** Nylon
- **Product dimensions:** 23L x 17.5W x 9.8H centimeters

## Images

![eufy Security Baby Monitor Baby Smart Sock with 2.4 GHz Wi-Fi, Track Sleep Patterns, Naps, Heart Rate, No Monthly Fee - Image 1](https://m.media-amazon.com/images/I/610Bxj43WdL.jpg)
![eufy Security Baby Monitor Baby Smart Sock with 2.4 GHz Wi-Fi, Track Sleep Patterns, Naps, Heart Rate, No Monthly Fee - Image 2](https://m.media-amazon.com/images/I/61ncu3ASaAL.jpg)
![eufy Security Baby Monitor Baby Smart Sock with 2.4 GHz Wi-Fi, Track Sleep Patterns, Naps, Heart Rate, No Monthly Fee - Image 3](https://m.media-amazon.com/images/I/71GvgzR4RZL.jpg)
![eufy Security Baby Monitor Baby Smart Sock with 2.4 GHz Wi-Fi, Track Sleep Patterns, Naps, Heart Rate, No Monthly Fee - Image 4](https://m.media-amazon.com/images/I/615RIfnttHL.jpg)
![eufy Security Baby Monitor Baby Smart Sock with 2.4 GHz Wi-Fi, Track Sleep Patterns, Naps, Heart Rate, No Monthly Fee - Image 5](https://m.media-amazon.com/images/I/61W5HnTYMGL.jpg)

## Questions & Answers

**Q: 1. How do I update the firmware for the monitor and camera?**
A: For first use, update the firmware to the latest version -Camera: Connect to the eufy Baby app, then go to Me > My Devices > Settings > About Device > Firmware Update. -Monitor: On the screen, go to Monitor Settings > About Device > Firmware Update.

**Q: 2. What situations are suitable for using the battery-powered camera?**
A: The camera works great whether plugged in or running on its 5,000mAh built-in battery, ensuring seamless use during trips or power outages. When using battery power, you can expect about 9 hours of use and around 5.5 hours with night vision.

**Q: 3. What detection features does the camera have?**
A: The camera features cry detection, loud noise detection, and temperature monitoring. You can adjust the sensitivity for cry and noise detection with five different levels and set the push notification intervals to avoid frequent disturbances.

**Q: 4. What does the Wi-Fi switch do on the camera?**
A: The Wi-Fi switch is there to protect your privacy and security. When it's turned on, the camera connects to your router, letting you view the livestream on the app. If you turn it off, the camera will only connect to the monitor.

**Q: 5. How does Smart Connect work?**
A: Smart Connect is enabled by default. When the camera's Wi-Fi switch is on and it's connected to Wi-Fi, your device automatically switches between Wi-Fi and local connection for optimal streaming. To disable it, turn off the camera's Wi-Fi.

## Customer Reviews

### ⭐ Unreliable product and no liability from seller or brand
*by D***A on 8 February 2026*

I bought the Eufy Sock and used it for five months. After that, it stopped connecting to the base and stopped showing readings. I contacted customer support and sent a video as they requested. They sent me the same troubleshooting instructions twice, which I followed, but it still didn’t work. Instead of honoring the warranty, they told me to contact the seller. The seller said they’re not responsible and told me to contact the brand. The brand then told me to contact the seller again. After being pushed back and forth with no solution, I gave up. I cannot use the product anymore, and my daughter, who is six months old, cannot use it either. This is a very expensive product, and the company refuses to take any responsibility. Their customer service is the worst I’ve ever experienced. They do not care about their customers or the safety and usability of their products. I will not buy from Eufy again, and I will not recommend any of their products.

### ⭐ Review
*by S***D on 9 January 2026*

used product

### ⭐⭐⭐⭐⭐ Review
*by H***H on 18 November 2025*

Been using this for our 7.5 month old since we brought him home. I like the peace of mind it gives us. It's not 100% accurate but it's pretty close (in terms of determining his sleep, heart rate and blood oxygen level). After daily use for 7.5 months it's still going strong. Maybe once in a blue moon it disconnects but never for more than a few minutes.

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**Shop now:** [https://www.desertcart.jp/products/481586921-eufy-security-baby-monitor-baby-smart-sock-with-2-4](https://www.desertcart.jp/products/481586921-eufy-security-baby-monitor-baby-smart-sock-with-2-4)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-30*