1. Access your phone's app store.
2. Search for and download a free NFC read/write app.
3. Open the NFC app. Follow its instructions to
   reprogram your Aro Ring.

Now you can customize your Aro Ring as often as you'd
like - there's dozens of applications you can choose, start exploring!

There's several ways to determine your ring size. Here's a useful method:

If you have a ring that already fits you well, you can download a ring sizing app determine your size.

These apps will allow you to place your ring on your phone's screen, and adjust the diameter so that you can view your ring size.