That depends on how much you use the phone.
The Nike Fitbit surge and Bluetooth devices do not uses data on your cell phone. They will use up battery power quicker than when you are not using them.
They all use DATA . If they really want to they could get all the information in your Phone .
No
You cant use a smart phone without data plan.
delete all of your phone's data and photos.
Mobile data is what allows your phone to get online when you're away from Wi-Fi. Mobile-enabled devices can send and receive information over a wireless cellular connection. As long as you have a cellular connection, you can use the Internet.
A data call is where a person uses their cell phone as a modem to send a fax or e-mail through their cell phone.
Probably. Your question is complicated and lacking in details, so I'd hesitate to say for certain "Yes, you can do that," but most cellular carriers don't really care who made your phone as long as it's compatible with their system, and if you don't use the data features of your phone, you won't incur data charges. (If you do use them, then you will have to pay data charges. Whether you can turn off the features that require a data connection or not... that depends on the phone; you'd need to check with the manufacturer.)
Depending on what kind of phone you have I find it much easier to use the gps than use my phone as a gps, I have a blackberry smartphone. The gps has a larger screen and its easier to see what is ahead than on your phone.
data entry
Yes, updates do use data. It is best to wait until you are in a location with Wi-Fi to connect and update.