Whether you're curious about a device you purchased or want to see how well a phone runs before you sell it, here are the best diagnostic tools for iOS and Android.
How to Run Diagnostics on Your iPhone or Android + More Pro Phone Tips
Wondering if your smartphone is in good health? Whether it's a used phone you just bought or an old device you're looking to sell, you can put it through a series of diagnostic tests. We'll show you how! Plus discover hidden iPhone and Android tips and tricks everyone needs to know.