








The Ozeri WeightMaster 400 lbs Digital Bath Scale with BMI and Weight Change Detection was designed and engineered in the USA to provide a comprehensive yet simple weight management solution to measure and track your weight. Featuring BMI Measurement and Auto Recognition Technology, the Ozeri WeightMaster weighs up to 400 lbs and displays your BMI (Body Mass Index), a measure of your body fat based on your height and weight. Immediately after displaying your weight and BMI, the scale’s Weight Change Detection displays your “net weight change” from your last weigh-in (L1), the average of your last 3 weigh-ins (L3), and last 7 weigh-ins (L7). By measuring your weight once a day, the Ozeri WeightMaster empowers you to see how your current weight changes day to day, from the last 3 days, and over the previous week. For users who would rather just focus on their weight trend without worrying so much about the actual numbers, the WeightMaster features Color Alert Technology, which displays your weight change in a GREEN illumination for weight loss and RED for weight gain, providing a visual form of intuitive feedback. With built-in intelligence, the WeightMaster requires no complicated synching and spares you the data connection failures common to more expensive wireless and Bluetooth alternatives. Precision engineered and durably made, WeightMaster auto-calibrates with StepOn technology and auto-powers off to preserve battery life. The Ozeri WeightMaster is made out of impact-resistant tempered glass, and equipped with non-slip scratch-resistant feet that won’t damage flooring. Ships with 3 AAA batteries included, and backed by Ozeri’s 100..
Is Discontinued By Manufacturer : No
Product Dimensions : 12.2 x 11.8 x 0.9 inches; 3.52 Pounds
Item model number : ZB21
Batteries : 3 AAA batteries required. (included)
Date First Available : May 30, 2014
Manufacturer : Ozeri
ASIN : B00KO8XHE4
Best Sellers Rank: #212,605 in Health & Household (See Top 100 in Health & Household) #296 in Digital Bathroom Scales
Customer Reviews: 4.3 4.3 out of 5 stars 680 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
BMI with Weight Change Detection — Instantly displays your BMI (Body Mass Index), current weight, and your net weight change since your last weigh-in. It also calculates your net weight change from the average of your last 3 and 7 weigh-ins to help provide a comprehensive understanding of your weight.
Accurate Weight Tracking with 7 Day Memory — By measuring your weight once a day, the Ozeri WeightMaster empowers you to instantly see how your current weight changes from the previous day (e.g. -0.8 lbs), the average of the last 3 days (e.g. -1.1 lbs) and the previous week (e.g. -1.8 lbs), all displayed on an intelligent LCD with color alert technology.
Smart LCD with Color Alert Technology — For users who want to focus on their weight trend instead of the actual numbers, this scale displays your weight change in color, with a GREEN illumination for weight loss and RED for weight gain, providing a visual form of intuitive feedback.
Immediate and Flawless Results — Performs and displays all calculations on the scale’s LCD without complicated synching or data connection failures common to more expensive wireless and Bluetooth alternatives.
Quality Construction, Industry-leading Capacity and Built-in Intelligence — Weighs up to 400 lbs with auto-recognition technology for 5 unique users at home, at the office, or at the gym. Automatically calibrates with StepOn technology and auto-powers off. Made out of impact-resistant tempered glass, and equipped with non-slip scratch-resistant feet that won’t damage flooring.
11 reviews for Ozeri WeightMaster 400 lbs Weight Scale with BMI and Weight Change Detection
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$29.98

Amazon Customer –
Motivating
Love the feedback. But hate when it’s red! What a great motivator.Simple to use and setup.
Christina –
Great scale option if you want to measure your progress but not necessarily your weight
So, like many people, I think I put on some pounds during the pandemic. But I avoided stepping on the scale and weighing myself because I knew the (presumably high) number would just stress me out and give me anxiety. I know I need to lose some weight because my clothes were feeling tight, and a few stretch marks appeared (eek!). I started doing some intermittent fasting and changing up my diet and fitness routines, but I wondered if I was making any progress, and if so, how much. I felt as though I could tailor my routine better if I could measure how much progress I was making by doing certain things. But on the other hand, I also still didn’t want to know my weight–I know it’s just a number, but honestly, I’m just not mentally ready to look at it yet. So I had a dilemma. How can I measure progress without actually knowing my starting weight…? I did a lot of brainstorming, and I looked online and found some fancy numberless scales that do exactly that, but they run $100+. Then I found this scale and came up with an ingenious idea. I bought it and layered on some masking tape to cover the top portion of the LED display (to cover where it displays your weight) and on the bottom left side (to cover where it displays the BMI) and kept the bottom right side open. Then I set it up, and ta-da! It works perfectly. I step on it each morning, and it tells me if I lost/gained weight (1-day, 3-day average, and 7-day average) and how many pounds. So now I know if I’m trending in the right direction or not, which is all I care about right now, but I can’t actually see my weight itself. 🙂 And this solution only cost me $24. So someday in the future when I’m feeling healthy again and less stressed out, I’ll take that masking tape off; but for right now, I’ll remain in ignorant bliss, just focusing on moving in the right direction, until I feel comfortable enough facing the actual weight numbers again.
R R –
THIS IS A COOL SCALE!
I previously bought a Camry scale, BIG mistake. It had a cheap feel to it, even though it looked kind of cool. It lasted 3 years, but it would give different readings within seconds apart. I put up with it all that time, then finally it just got stuck on a certain weight. I threw it out. Don’t buy that brand. I read the reviews on this and took a chance. I’m glad I did. I really like it.It has an expensive feel and look to it and feels sturdy (unlike the Camry, which was wobbly). I got the black one. It is compact and fits under my sink and looks nice. It was very simple to set up and it is very detailed on the height (I put in 5’5″.8). It weighed me correctly (I checked with other scales at different places). It weighs in precise increments, as well. A very cool feature is that it remembers you and shows if you lost or gained weight, recording the last 7 weigh-ins for you to look at if you want. I like this incentive. I bought it used, damaged box, in order to save a few bucks, although I think the price is very good. It looks and works perfectly. I am hoping it outlasts my previous scale.
Sathington W. –
1st one petered out, but Ozeri made good
This scale was awesome for awhile. The color coding weight tracking made it easy to monitor weight fluctuations for everyone in the household.It has since descended into madness. I step on it now and it displays a grossly inflated weight. Not to worry, step on again and I just lost 10 pounds! Step off and it leaves 2 or 3 pounds on the display. Of course, this is assuming I can hold as still a rock for 10 seconds. For the price, I guess a year was an OK run, but I would say that reliability and accuracy are pretty important in a measuring device. This just doesn’t have it.Oh, and I tried changing the batteries and making sure the floor was level, so don’t bother pointing that out.*Update: Ozeri reached out to me and sent a replacement scale that is working flawlessly so far. I hope it holds up because I am a big fan of this scale’s interface. I definitely appreciate Ozeri standing by their product. So despite the experience I had with the first one, don’t hesitate to take a chance with them.
MB –
A Must Have Digital Bathroom Scale
This scale is the tops. Love the ability to monitor your BMI along with your weight. I have found that this scale is very correct with weight management as it is in line with doctors visit weigh ins. Nice sleek and stylish glass top which makes it easy to wipe down, and does not take up a lot of room wherever you put it. Very easy to program – just follow the instructions that come with it. One recommendation that I found helpful from other feedback is to change the batteries out that come with the scale. Easy to read digital numbers. Readout will show red for weight gain, and green for weight loss. This is also very helpful for keeping track of fluid weight gain fluctuations. Keeps track of the last three weigh ins so you have a record. Also, for those of us that have used other scales in the past that you need to tap with your foot to turn on. You only need to step on this scale and let it do its job. Very happy with this purchase, and this has been the best scale ever that I have used. Would highly recommend this company and its product.
Moira Allen –
Probably a good scale but you need to be a rocket scientist…
If you are using this for one person, it’s probably a great scale, although I really don’t need a scale to tell me (in red) that it’s “bad” if my weight goes up and “good” (green) if it goes down. There might actually be circumstances where this isn’t universally true. However, my big issue is with the method with which it tracks users. My husband likes to track his morning weight and evening weight, so he uses the “users” function on our old scale to do this. This scale (and most of its kind, apparently) automatically decide which user you are based on how much you weigh – so one person can’t use two profiles, as the weight won’t be different enough to trigger the different user profiles. So I’m hunting around for something a little simpler and more old-fashioned.
Jody P. –
I really like this scale! I believe that it is nice and sturdy and feels high quality. I love that you can set it up for 5 different people and the programming of it is very easy. I don’t love getting on a scale, but I do love when it shows me green.
manuel de jesus renteria romero –
Tengo un tiempo utilizándolo y me a funcionado muy bien, el único problema es al registrar una persona, ya que la pantalla no agara muy bien y es un poco difícil ir cambiando las opciones
Ameil zayah –
Excellent
Brooke Berry –
This scale was simple to set up. The screens are easy to read. I like that it can track net gain or loss, keeps up to 5 profiles and will auto detect who is on there, so you don’t need to adjust anything. I have only had it about a week but so far so good!
Grace Lauri –
Love how it tells you if you lossed (green) or gained (red).Makes me really try hard to reach green. Only thing is it took a couple times for it to store my info.