In this case, the damage is actually higher because of the price of the device itself than what is contained in it. But as I wrote before, it may be possible to save the data or you may find your backup - that $50 may not seem like much today, but it may one day reach the price of the device itself.
We should not rely on a fingerprint or face unlock on smartphones as the ultimate protection, because while we sleep or if we are in any unconscious state (under the influence of alcohol, drugs ...) it is very easy to unlock our device and steal data (if they are not encrypted).