Welcome aboard Sergio.
Suunto mosquito has a sample rate of 2 seconds in freediving mode, which will do ok for most freedivers I think (never bothered me for a second. ). Stinger has 2 or 4 seconds I think, don't remember.
As for the 24 hours after scuba thing, it's supposed to be advised anyway. I hope you didn't discover that by trying to freedive after scuba, it's a big no-no. DCS is a big issue.
Maybe for a shallow scuba dive it can be ok to dive the day after even if it has been just 20 hours, I don't know but I wouldn't do that enough times to justify buying a computer just for that case.
Suunto mosquito has a sample rate of 2 seconds in freediving mode, which will do ok for most freedivers I think (never bothered me for a second. ). Stinger has 2 or 4 seconds I think, don't remember.
As for the 24 hours after scuba thing, it's supposed to be advised anyway. I hope you didn't discover that by trying to freedive after scuba, it's a big no-no. DCS is a big issue.
Maybe for a shallow scuba dive it can be ok to dive the day after even if it has been just 20 hours, I don't know but I wouldn't do that enough times to justify buying a computer just for that case.