A dead phone means no access to your digital wallet, which could be a problem if you get out of the habit of carrying your physical wallet. Plus, some businesses are still cash-only.

The whole wallet measures just 10 mm thick (0.4 in). The concept is certainly resonating with the Kickstarter crowd, as it's racked up nearly $9,000 on an initial ask of $1,274 with over 20 days ...

Those are all sold separately, as are the colorful replacement back panels, which are $35 each. In the box, you get a thoroughly respectable budget Android phone with a 6.7-inch OLED, 50-megapixel ...