Smartphone uses without subscription service

Smartphones are seen everywhere now days and can do a multitude of different things. But what you might not know is you don't even need cell phone service to take advantage of their features. If you have an old smartphone laying around the house somewhere, it is still useful and great to keep around. Here is a list of things you can still do with that old smartphone. (Note: With this list I will be focusing on the Android operating system, because that is what I have the most experience in using. Most of these functions will be available with the iPhone as well.)

1. Browsing the web
2. Make calls and texts with VoIP
3. Video game apps
4. Streaming video such as Netflix, Hulu Plus, and YouTube
5. MP3 player and music apps
6. Camera/Video camera
7. GPS functions
8. Simple everyday tasks (e.g. flashlight, calculator, alarm clock/timer, calendar, bubble level) 
9. Emergency 911 calls
10. Enjoying the other thousands of useful apps in the App store