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A few years ago, I had a vision of never needing a mobile hotspot again. After all, my iPhone -- a gadget that's never more than an arm's length away -- has that feature, and connecting to it is a doddle if all your devices have the Apple logo.

But it's a poor experience. Try as I might, the connection is almost always unstable and slow (especially when streaming or connecting to a remote system). It's a massive pain if you have any Android devices because they continually disconnect, which hammers the iPhone's battery.

Also: I love AirTags, but this alternative slips right in my wallet and solves their biggest flaw