Hi Steve and welcome.
In my opinion, and that's all it is, when measuring glucose levels around a normal range, I'll say under 120 because that's my personal goal, most meters you'll see in the pharmacy are all pretty much the same. There are exceptions of course as they are electronic devices and each one can be wonky.
So the basic measuring capabilities of meters are all about the same, it's the extra whizz bangs that separate each meter. Some can download directly to your computer, some require cables. Some are USB port based and can store, download, and recharge thru the port.
As John mentioned the real cost is in the strips. Some can be over $60 per vial of 50 strips. So if your insurance doesn't provide adequate coverage using these can run up the cost at the register real quick.
Personally, I use the Walmart relion prime Meter. Since I look for trends as opposed to actual readings, for the most part anyway, this brand works for me. And the cost of strips, $9 per 50, makes it very affordable as I pay out of pocket.
Your brother will either work with his doctor/insurance to get a meter or can spend some time with a pharmacist discussing the pros and cons and determine one he likes.
Hope that helps some
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