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I've had my Chipolo card for over a year. It did start to misbehave after that time, but was still under warranty and Chipolo quickly replaced it. In addition, you are given a discount code that greatly reduces the replacement price when the battery is completely done.

If I got the Nomad card, I'd have to invest in a wireless charging unit too.

One downside of these tracking devices is the sound alert. It's not the volume, it's the frequency. Without stepping on toes, older folk may be more prone to WAMKOW syndrome (Where are my keys or wallet). And with age, comes hearing loss - which is usually frequency-specific. I have normal hearing at lower tones but am practically deaf at higher tones - where the "chirp" lives. One device got around that by playing a sequence of tone steps up an octave or two (rather than just one tone).

I agree with one poster that the wallet is seldom "left behind" but, at home, a brown wallet on a brown end table or a brown leather couch rivals a ghillie suit for stealth.
 
Guessing you either don't drive a car or live in one of the (very) few places where you can put your license on your phone.
We only have credit card size driving licenses in the UK so I’d never take an entire wallet just for that.
 
I can't remember the last time I left my wallet behind, but this seems like it would be incredibly handy for people who have that worry.
My better half went through a phase of leaving his wallet places. Then I got us both the trackers from Tile just in case. Those have long been dead but, yeah, we never ended up needing them.
 
I think this article is less of a review than a description of the product. I’ve been using for a couple of days and it doesn’t work so well yet. It says I’ve left it behind when I haven’t and doesn’t indicate that I have left it behind when I have. I’ll keep testing, but at least for the notification part, it’s pretty unreliable.
 
I can just see people putting their entire wallet on the Qi charger to recharge and ruining their credit cards in the process.
 
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