---
product_id: 7806884
title: "BF-684W Digital Body Fat & Body Water Scale - Multi-Frequency BIA - BMI Monitor - 440 lb Capacity - Tempered Glass Platform - Athlete & Guest Modes - Japan Technology"
brand: "tanita"
price: "¥31932"
currency: JPY
in_stock: true
reviews_count: 7
category: "Tanita"
url: https://www.desertcart.jp/products/7806884-bf-684w-digital-body-fat-and-body-water-scale-multi
store_origin: JP
region: Japan
---

# Multi-frequency BIA tech Memory for 2 users + guest 440 lb max capacity BF-684W Digital Body Fat & Body Water Scale - Multi-Frequency BIA - BMI Monitor - 440 lb Capacity - Tempered Glass Platform - Athlete & Guest Modes - Japan Technology

**Brand:** tanita
**Price:** ¥31932
**Availability:** ✅ In Stock

## Summary

> ⚡ Own your health journey with precision and style!

## Quick Answers

- **What is this?** BF-684W Digital Body Fat & Body Water Scale - Multi-Frequency BIA - BMI Monitor - 440 lb Capacity - Tempered Glass Platform - Athlete & Guest Modes - Japan Technology by tanita
- **How much does it cost?** ¥31932 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/7806884-bf-684w-digital-body-fat-and-body-water-scale-multi)

## Best For

- tanita enthusiasts

## Why This Product

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

## Key Features

- • **Dual User Friendly:** Stores data for 2 users plus guest mode—perfect for couples or fitness partners.
- • **Next-Gen Body Metrics:** Multi-frequency Bioelectric Impedance Analysis delivers advanced body fat & water insights.
- • **Precision Meets Power:** Measures weight up to 440 lbs with 0.2 lb increments for detailed tracking.
- • **Sleek & Durable Design:** Tempered glass platform with transparent electrodes blends style with resilience.
- • **FDA Cleared & Warranty Backed:** Trusted accuracy with FDA clearance and a 3-year warranty for peace of mind.

## Overview

The TANITA BF-684W is an FDA-cleared digital scale featuring multi-frequency BIA technology to measure body fat and water with high precision. It supports up to 440 lbs with fine weight increments, stores profiles for two users plus guests, and boasts a sleek tempered glass design. Backed by a 3-year warranty, it’s engineered for professionals seeking reliable, detailed body composition tracking.

## Description

Buy TANITA's BF-684W Multi-Frequency FDA Cleared Body Fat & Body Water Digital Weight Scale on desertcart.com ✓ FREE SHIPPING on qualified orders

Review: So far so good - I bought another Tanita from desertcart a few years ago but it started to go bad within I would like to say 2-years tops. I searched high and low and found that Tanita is still a highly respected brand when it comes to scales. I was browsing the Tanita website and saw that they were going to release this scale in December of 2011 (this was back in Sept/Oct of 2011) and decided I'd wait to purchase it. My concern about it being made out of glass is that what will happen if it experiences something dropping on it or it being moved and dropped on accident? So far I have not had any problems with the glass or it being scratched or damaged. I do not keep this in the bathroom rather my living room. The scale varies my weight each time I step onto the scale, usually within 1-3 pounds. It is never consistent. However, I still feel that being 1-3 pounds off is within reason. You can program it for two people, so for yourself and your partner or yourself and your child or yourself and whoever. I guess the water percentage and the body fat percentage seems to be accurate. My old Tanita had a button to press for just weighing yourself and upon first use I could not seem to figure out what button it was. I finally figured it out, it is the last button in the vertical buttons. If you hit that button, you'll see the scale come on, wait until you see the 0.00 come on and then step onto the scale. This is very helpful for people who just want to see what they weigh and for guests who might use the scale.
Review: SECOND SCALE HAS SAME PROBLEM - cant get the same weight twice in the same minute - Solid, somewhat old school ( no bluetooth) scale purchased when gym owner recommended this specific brand to me to get a bodyfat measurement. I didn't expect it to be a "real" measurement, but I expected it to generate a consistent relative baseline. I am pretty low in bodyfat, so I expected a small amount of variance. I I know that time of day, hydration levels, etc can affect the number. But try as I did to measure a consistent time of day, time before (or after exercise), tried first in the morning, etc - just too much percentage swings in the measurement. Example - gym measurement with calipers was 9.3% - on this scale I got number higher (that's ok..I just wanted it to be a consisent baseline) - but it varied from 11% to 15% - from day to day despite no weight increase or decrease. I just use it now as a 'more expensive' scale for weight in another bathroom. Update - it's now been 4+ months of ownership. I aldready knew I had no confidence in getting a consistent (I didnt say accurate - just consistent) bodyfat number. It has now spread to weight. For example, I followed the same routine this morning, wake up - bathroom - strip clothes - turn on scale - read weight after it beeps to say 'ready'. I did this 5X - I turned it off, walked away, came back, turn it on, measure. It gave me a different weight EVERY time. To be fair, I am a bit neurotic - so if all you read are lbs, then fine. But if you actually read the tenth of the lbs - I got everything from 147.2 to 147.8 and everything in between within 10 minutes - up and down - all else the same.... I did not pay more for this brand to get this lack of precision. UPDATE: Just to followup, TANITA sent me a replacement scale. It sat in the box a long time, and after unboxing, it has the exact same issues as the first scale. Getting on the scale, off the scale, back on - resulted in weight measurement fluctuations of .6 to .8 lbs. When you are trying to accurately measure, this is too much variance. And this is short interval off and on......this is not 3 hours apart, more like 1 minute or 2 minutes. I have another digital scale, way cheaper, from RENPHO that worst case will fluctuate 0.2 lbs if you get on, off and back on. I dont really care if the weight itself is accurate, but i do care about the fluctuation......

## Features

- FDA CLEARED, DARE TO COMPARE! Uses Bioelectric Impedance Analysis (BIA) technology for body water and body fat measurements.
- Multi-frequency BIA technology
- 440 lb. (200 kg) capacity, 0.2 lb. (0.1 kg) weight increments, 0.1% body fat increments.
- Features memory for 2 uses, guest mode, athlete mode, recall function.
- Includes 3 year warranty and batteries
- Tempered glass platform with transparent electrodes.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B006OAL75M |
| ASIN  | B006OAL75M |
| Batteries  | 4 AA batteries required. (included) |
| Best Sellers Rank | #259,357 in Health & Household ( See Top 100 in Health & Household ) #344 in Digital Bathroom Scales |
| Brand Name | TANITA |
| Color | White |
| Customer Reviews | 3.6 3.6 out of 5 stars (86) |
| Date First Available  | December 20, 2011 |
| Display Type | digital |
| EU Spare Part Availability Duration | 3 Years |
| Form Factor | Counter |
| Is Discontinued By Manufacturer  | No |
| Manufacturer | Tanita |
| Manufacturer  | Tanita |
| Material Type | Glass |
| Measurement Type | pounds, kilograms |
| Product Dimensions  | 12.6 x 13.4 x 1.7 inches; 7.47 Pounds |
| Readout Accuracy | 0.1 Kilograms |
| Recommended Uses For Product | Humans, Adults |
| Special Features | Body Fat, Body Mass Index |
| UPC | 742496801883 |
| Unit Count | 1 Count |
| Weigh Scale Type | Counter Scale |
| Weight Capacity Maximum | 440 Pounds |

## Product Details

- **Brand:** TANITA
- **Color:** White
- **Display Type:** digital
- **Recommended Uses For Product:** Humans, Adults
- **Special Feature:** Body Fat, Body Mass Index

## Images

![BF-684W Digital Body Fat & Body Water Scale - Multi-Frequency BIA - BMI Monitor - 440 lb Capacity - Tempered Glass Platform - Athlete & Guest Modes - Japan Technology - Image 1](https://m.media-amazon.com/images/I/31eneOW-caL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ So far so good
*by R***I on May 4, 2012*

I bought another Tanita from Amazon a few years ago but it started to go bad within I would like to say 2-years tops. I searched high and low and found that Tanita is still a highly respected brand when it comes to scales. I was browsing the Tanita website and saw that they were going to release this scale in December of 2011 (this was back in Sept/Oct of 2011) and decided I'd wait to purchase it. My concern about it being made out of glass is that what will happen if it experiences something dropping on it or it being moved and dropped on accident? So far I have not had any problems with the glass or it being scratched or damaged. I do not keep this in the bathroom rather my living room. The scale varies my weight each time I step onto the scale, usually within 1-3 pounds. It is never consistent. However, I still feel that being 1-3 pounds off is within reason. You can program it for two people, so for yourself and your partner or yourself and your child or yourself and whoever. I guess the water percentage and the body fat percentage seems to be accurate. My old Tanita had a button to press for just weighing yourself and upon first use I could not seem to figure out what button it was. I finally figured it out, it is the last button in the vertical buttons. If you hit that button, you'll see the scale come on, wait until you see the 0.00 come on and then step onto the scale. This is very helpful for people who just want to see what they weigh and for guests who might use the scale.

### ⭐ SECOND SCALE HAS SAME PROBLEM - cant get the same weight twice in the same minute
*by A***R on July 8, 2023*

Solid, somewhat old school ( no bluetooth) scale purchased when gym owner recommended this specific brand to me to get a bodyfat measurement. I didn't expect it to be a "real" measurement, but I expected it to generate a consistent relative baseline. I am pretty low in bodyfat, so I expected a small amount of variance. I I know that time of day, hydration levels, etc can affect the number. But try as I did to measure a consistent time of day, time before (or after exercise), tried first in the morning, etc - just too much percentage swings in the measurement. Example - gym measurement with calipers was 9.3% - on this scale I got number higher (that's ok..I just wanted it to be a consisent baseline) - but it varied from 11% to 15% - from day to day despite no weight increase or decrease. I just use it now as a 'more expensive' scale for weight in another bathroom. Update - it's now been 4+ months of ownership. I aldready knew I had no confidence in getting a consistent (I didnt say accurate - just consistent) bodyfat number. It has now spread to weight. For example, I followed the same routine this morning, wake up - bathroom - strip clothes - turn on scale - read weight after it beeps to say 'ready'. I did this 5X - I turned it off, walked away, came back, turn it on, measure. It gave me a different weight EVERY time. To be fair, I am a bit neurotic - so if all you read are lbs, then fine. But if you actually read the tenth of the lbs - I got everything from 147.2 to 147.8 and everything in between within 10 minutes - up and down - all else the same.... I did not pay more for this brand to get this lack of precision. UPDATE: Just to followup, TANITA sent me a replacement scale. It sat in the box a long time, and after unboxing, it has the exact same issues as the first scale. Getting on the scale, off the scale, back on - resulted in weight measurement fluctuations of .6 to .8 lbs. When you are trying to accurately measure, this is too much variance. And this is short interval off and on......this is not 3 hours apart, more like 1 minute or 2 minutes. I have another digital scale, way cheaper, from RENPHO that worst case will fluctuate 0.2 lbs if you get on, off and back on. I dont really care if the weight itself is accurate, but i do care about the fluctuation......

### ⭐⭐⭐⭐⭐ GREAT, GREAT product - we love it!
*by S***Y on August 7, 2012*

Purchased this product after joining Weight Watchers and wanted a quality scale. THIS IS THE ANSWER. Incredible value for an incredible product. I'm the #1, husband is #2, and I hear him every morning using this scale. He's never done that and the fact that you get your % of body fat and water...AWESOME. This scale rated HIGHER that any of the Weight Watcher scales and has been totally accurate, .2 difference every week of my weigh-in weight with Weight Watchers, for the last 5 weeks. Considering the Weight Watcher scale in stores is a commercial, thousand plus dollar scale and this has been the same .2 difference every week, I trust this scale more than theirs! You won't be sorry if you purchase this product. QUALITY QUALITY QUALITY!!!!

## Frequently Bought Together

- TANITA's BF-684W Multi-Frequency FDA Cleared Body Fat & Body Water Digital Weight Scale
- 7-Day Apple Cider Vinegar Cleanse: Lose Up to 15 Pounds in 7 Days and Turn Your Body into a Fat-Burning Machine

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-19*