13. Finger Selection
When choosing a ring size, finger selection is important. We tend to see the
strongest signal strength from the index finger, but the middle, ring, and
pinky fingers can also have strong signal strength. Some factors to consider
when thinking about finger selection are:
The development of capillaries, which deliver blood, is influenced by use of
the finger. Just like other areas of the body, the more the area is used the
denser the capillaries. So, the more widely used fingers are likely to have
greater blood flow, yielding stronger signal strength.
Bone structure, specifically knuckles, can impact performance. A snug fit
must be accomplished while retaining the ability to remove and replace the
ring. A finger with a knuckle much larger than the circumference of the
finger should be avoided.
As for the thumb , the reason we don't normally suggest wearing the ring on
the thumb is that many people have larger knuckles on their thumbs, which
can make it challenging to get a good fit once the ring gets past the knuckle.
But if you can find a size that fits well on your thumb, and your thumb bone
structure allows for a good snug fit, it can work reasonably well. Another
thing is that the blood capillaries aren't as well developed on the thumb. So
although not officially recommended as it's more of a case by case basis
owing to individual thumb structure, you could give it a try if you believe you
can get the ring to fit well.
14. Factors That May Impair Data Accuracy
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