TL;DR: Get the rechargeable KeySmart SmartCard for $31.99 (reg. $39.99) and track your wallet with Apple Find My or Google Find. Separation alerts can even notify you if you’ve accidentally left your wallet behind before you get too far away. If you’ve ever spent 20 frantic minutes searching for your wallet before heading out the door, this is one upgrade you’ll probably appreciate. Get the KeySmart SmartCard (Gen 3) for $31.99 (reg.