I have to be rigorous in my glucose monitoring. My pharmacy doesn't typically carry the strips I use so I tried a new meter. It was wildly inaccurate! Did some googles and such and found that the standards are not at all what I am comfortable, something like 15% inaccuracy either way is considered acceptable by "industry standards" but not by me. I have to know if what I am doing is working or not. My old meter on the other had tests out exactly the same as the lab tests. I now have my test strips special ordered and have to put in the request about 2 weeks before I'm out.
Anyway, the Walmart brands are actually more accurate than most. Wish I was at home where I have my test results page bookmarked.