I was in the market for a classic Casio, and I could not decide on a particular model... so I bought all three. I will not expand on the features of each model as they already have been discussed in other threads.
A158 is the small one.
A168 is the medium sized one that I liked best.
B650 is the larger one.
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A158 is the small one.
A168 is the medium sized one that I liked best.
B650 is the larger one.

Sent from my SM-G955U using Tapatalk