Not sure what type of cell phone you have but with many of the newer phones you can actually snap a picture and then zoom in to see the trichomes up close. The one you posted by Happy Hydro is good (don't forget discount code: MRGROWIT), but if you have shaky hands then it won't be so good. I like the Carson one you posted because it's easy to snip off a piece of the bud, place onto a table, then place the microscope on the table over the bud for a clear view.
Not sure what type of cell phone you have but with many of the newer phones you can actually snap a picture and then zoom in to see the trichomes up close. The one you posted by Happy Hydro is good (don't forget discount code: MRGROWIT), but if you have shaky hands then it won't be so good. I like the Carson one you posted because it's easy to snip off a piece of the bud, place onto a table, then place the microscope on the table over the bud for a clear view.
That looks like a decent one, I started with a handheld one like that but, I soon realized that trying to hold your face right up to the plant with the fan on and being pressed for room as it is was kinda a pain in the a$$. So i opted for one like this https://www.amazon.com/gp/product/B07MJ6826G/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1
It does cost alittle more but it is alot easier to work with. Good luck with whichever one you decide on.