Most reviews suggest that the average lifespan is 2.5 years. However the lifespan varies with each individual who uses the phone. If you use it with care and avoid overloading it with apps, the device may last for more than the average lifespan.
If you have a Motorola phone and are looking to get a longer lifespan here is what you can do;
Do not download apps from non-trusted sources Get a screen protector and phone case Avoid sharing the device with too many people Install the latest software patches and updates provided by Google
So, if you have a Motorola Verizon compatible phone, these steps can help you increase its lifespan.