Smartphones may get faster and shinier every year, but that doesn’t mean your previous device has to end up abandoned in a drawer. Even without a SIM card, an ageing iPhone or Android handset can still be surprisingly useful as long as it connects to Wi-Fi. According to PCMag, here are six practical and fun ways to put that spare device back to work.
Turn it into a DIY security camera
An unused handset can double as a simple home-monitoring system. Install a security camera app on both your old and current phones, position the older device where you…

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