Ways to unlock iPhone 5 with iOS 10 to reduce Home button presses
You can't use Slide to Unlock without jailbreaking. Since your device does not have Touch ID, you can't use Rest to Unlock either, and your device does not support Raise to Wake either.

One way to reduce the wear on your home button is to use the power button to wake the device, then press the home button when you actually wish to unlock the device.