I am still not sure where to put it. I am right handed, I sometimes wear a watch on the left hand side.
Considering a daily use of the Ring conversion (module) at all sort of payment terminals: what would be a convenient place for the implant? Spot 1, 2 or 3? (The blue area has my Apex flex module)
So all of those spots are really close to your finger tendons. I’d recommend extreme caution placing it there (read: don’t).
I do know that @caj380 has his on his (left?) Forearm and I believe he likes the placement. Want to weigh in caj380?
Thanks for the advise. So would you recommend to put it on the outside of the underarm?
considering the application, i would put a piece of tape on your arm and try presenting that tape to all the payment terminals you come across. I think you’ll find the underarm is a lot less convenient than the top of the forearm
I have it on the top of the forearm.
I think the chip is much mire safe in this location
I have a module top of forearm as well. I use mine with my computer, my phone and payment terminals. It works well for all of those, i just needed to mount my pc reader in a better spot.
I debated back of hand, but put some other things there instead. Top of forearm has worked well for me.
Why not the back of your hand between the fourth and fifth metacarpals?
The Module is too big for my hand. Also: the corners of the impant are quite visible.
The top of the forearm: you mean near the elbow, at the outside like in this image?
I put mine near the wrist, the front end lands about where a watchface would sit. So it is a bit back from the wrist. Crucially i do not wear a watch on the side my module is installed.
This area doesn’t twist much, so it won’t flex or bend the implant. But i can easily present it to payment terminals. The spot you show would be very awkward to present to a standard payment terminal.
Like Amal mentioned put some tape were you think you want it, then try the way you want to use it and make sure you are ok with it. Its a compromise between where you would like it, and where you can/should put it.
Until now, I had tried tape on 1, 2 and 3 on my arm 
I am gonna try it on the watch-plate spot on my right arm now,
thanks!
1 and 2 look awkward for using a payment terminal. 3 puts the implant in an area that changes shape dramatically when I flex my hand–I suspect it would murder an implant within six months to a year. Back of the wrist where a watch would go, as others have suggested, seems to be the best compromise between longevity and ease of use.
I have my the Module version right here:
I love it! It works great for payments (basically the same motion as paying with watch) but where it really shines is when using it with your phone. It’s the perfect position for that. With the module, I can even pay or read it with my phone through my thick winter coat.
There’s even a picture of this placement on the Vivokey homepage:
