Personal and professional weight scales, body composition, and health monitoring equipment


BF-680W Body Fat/Body Water Monitor, Activity Monitor

Includes a Tanita FB-731 Activity Monitor, retail value $24.99!

In stock, ships within 24 hours of order, or next business day.

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Tanita Weight, Body Fat, Body Water Scale

Tanita's body water monitor scales use Bioelectric Impedance Analysis (BIA), the same accurate technology used for body fat monitoring. BIA passes freely through the fluids contained in muscle tissue and in blood, but it encounters difficulty when passing through fat tissue, which contains little water. By using the impedance reading, gender, height, and weight, the scale can quickly and reliably calculate body fat and total body water percentages. Proper hydration is essential for life. Maintaining a healthy body water% improves all overall health and keeps you feeling energized and operating at a peak performance. As a general guideline the average TBW% ranges for a healthy adult are: Female 45 to 60% Male 50% to 65%

  • Weight
  • Body Fat %
  • Body Water %
  • Easy-to-read 2.25" 2-line display
  • 2 person memory with Athlete mode
  • Weight and body fat % recall

Capacity: 300 lb (136 kg)
Weight Increments: 0.2 lb (0.1 kg)
Body Fat Increments: 0.1%
Body Water Increments: 0.1%
Modes: Adult, Child, Athlete, Weight Only, Guest
Power Supply: 4 X AA batteries (included)

 Tanita's BF-680W Body Fat / Body Water Monitor features weight, body fat %, and body water %, with a two-person memory. It provides greater control over monitoring and improving health and fitness, as well as, essential information for you to use while setting goals, for staying healthy and living a more active, vital life.  This monitor calculates body fat and body water levels using bioelectric impedance analysis (BIA); sending a safe, low-level electrical signal through the body.


Tanita's Body Fat / Body Water Monitors use a FDA cleared method of bioelectrical impedance analysis (BIA), a highly reliable method of analyzing body composition that can be done at home in a matter of seconds. BIA is based on a person's height, weight and the strength and speed at which a safe, low-level electrical signal passes through the muscle and fat in the body. Electrodes built into the patented "foot-pads" sends the signal through the body.


The BF-680W features a weight capacity of 300 pounds, it operates for greater than 2 years on four AA batteries (included).