We have covered many fancy key organizers in the past. KEEO Carbon happens to be quite special as it keeps your keys organized but also lets you track them. It has a companion iOS/Android app you can use to track it. KEEO Carbon holds three regular keys on the inside and many keys on the outside. You can install your keys without any modification thanks to the PLUG’N’SCREW system.
You can use the one-button-control mechanism to select the right key. When your key organizer and phone become separated, you get notified. KEEO Carbon is good looking and quiet. You can add an optional USB drive to it to carry your files. Want a bottle opener? No problem. This cool product is on Kickstarter.