UPDATE 2015-11-11: I've skimmed through reviews and there seem to be many negative reviews regarding accuracy/consistency. One very important thing to note is the memory effect which you're probably accustomed to. The other thing to note is that yes, you absolutely SHOULD be fluctuating in weight by a few pounds throughout the day. People forget how much bathroom breaks and intake account for. A gallon of water is about 8.3 pounds. If you weigh yourself, go for an intense 1 hour run, then chug a 32 ounce bottle of Gatorade when you get home and weigh again, expect to instantly weigh about 2 pounds heavier despite "burning calories" when using this scale. It may sound gross, but unless you know how much your personal bladder can hold or how much you urinate at a particular trip to the bathroom, you'll never be close to gauging how much weight you'll lose after you urinate...not to mention having a BM. If you google "average human bladder capacity" or similar, you'll see what someone estimated. I rarely ever go less than about 20 ounces, and one time I couldn't go for almost a whole day, and I was miserable but also curious. I went into a huge cup, marked with permanent marker, emptied, then carefully filled back up to the line from a measuring cup--63 ounces. That means that if I went in the morning, weighed myself, didn't urinate for hours and hours while also drinking fluids and food, I would've gained at least 4 pounds based on the expelled fluids alone, and maybe a pound or two more from fluid intake, and a couple pounds from food. So, yes, expect to fluctuate if your old digital scale held strong throughout the day--it's the memory effect, and you have definitive reasons to gain and lose many pounds throughout the day. If you drink a 16 ounce bottle of water, that's an instant pound; a 20 ounce bottle of soda, that's about 1.25 pounds; if you're from Texas and get a triple meat Whataburger with cheese, veggies, and fries, bam...that's about two pounds. I can eat a lot with my mwtabolism, so if I eat a 40 ounce Swanson family dinner and have a 32 ounce Gatorade, that's a guaranteed 6.5 pounds I put into my body in half an hour. So, don't be angry at the scale if it's not on a flat surface because a slight variation on a seemingly level surface can make it seem highly inaccurate, because unlike cheap digital scales, this one uses the four corners for measurements. Also, don't be angry because your weight often fluctuates throughout the day by a few, or many, pounds--if it doesn't, something is very wrong with your fluid and food intake and your bathroom routine, or your scale is being too polite to you. Quick, accurate readings. It's easy to track my gaining progress with the high-resolution. This does not suffer from the "memory-effect" that I've found in other digital scales. If I pick up my phone and wallet, or take my shoes off, it registers a very small change, and if I undo that change, it goes right back to the original number, as it should. It can't be tricked, unlike other digital scales as you'll see below. OTHER, inaccurate scales (with poorly made gauges, or too few gauges) use some type of memory effect to give the illusion of consistency that you weigh the same if you step off and back on. If you give it a small change such as holding a phone and wallet, it stays the same--if within whatever preset range of allowed variability, it uses the previous weight measurement from memory to hide its inconsistency. If you give it a large change in weight--use only half of your weight or have a different person step on--and let it register the new weight, then step back in the same manner as you did the first time, it yields a significant difference from your original measurement, only 30 seconds prior. Try this on your current scale and see if it shows you a different weight--you have to trick the scale with a vast weight change, as I mentioned, to expose a poor scale's inconsistency. With your current scale, what you may have thought was an inability to gain or lose weight on a daily basis may just be your scale utilizing this "memory effect", and to that end, even if you trick it, you'll never know what your weight is with accuracy, because it can have one, two, or more pounds of variability. I don't know what else to call it, so I've been using that term for a few years once I noticed how badly some digital scales can misrepresent measurements. It's deception, and testing for the "memory effect" will let you know if you can or can't trust your scale. Some may store a few measurements in memory, so cycle it a few times with many different readings to be sure. I prefer putting one foot on and holding steady with about half of my weight, since it's about a 50% change, which can expose the memory effect, or expose poor electronics that don't account for temperature change of exercising the metal used to measure changes in conductivity, because exercising the components will slightly warm them up, which alters the material's conductivity/resistance. Toss any digital scale it into your refrigerator for 6 hours, and you'll see what I mean. One other digital scale that I used appeared to have fixed measurements in permanent memory (since people will often benchmark their scales with weights), such as 20, 25, 35, or 45 pounds, because it would read a 45 pound plate dead even at 45.0 pounds, every time, even when wiping out the memory effect, and if I used 45 pounds and something that was exactly one pound, it would still, wrongly, display 45.0 because it allows for some variability to account for the inconsistent measurements. Using a 45 pound plate with and without my own weight, showcased a variability of +/- ~2 pounds, so that (and the 45+1=45.0 measurement) is how I determined that there were fixed, static weights permanently stored so that if it's benchmarked in a simple manner, it lies. To save costs, poor craftsmanship can be easily be offset with simple programming or circuiting, which is a one-time cost, and then cheaper/fewer components can be used in the scale which saves manufacturing costs, over and over again. It's pretty irritating. The bottom line is that this is digital scale is excellent for the price. EXCELLENT. I took a risk since other scales around this price, or more, have suffered from the "memory effect" in one or more ways, but I can't trick this scale--it's great. What you may have thought was "great for the price" with your other digital scales could be discounted if you try to trick it.
