Take advantage of the 30 return policy that most dealers offer. So, give some thought to phone features before selecting one. You can sometimes negotiate a better phone package with your dealer. There's a trade off between battery cost, weight and charge time. How many numbers can I store at one time.
Some people use the heck out of storing frequently called numbers in their phone.
You might need this feature if you spend a lot of time in 2 or more areas and want to set up two accounts to avoid roaming charges. Some phones and Batteries come with a vibrating option. This is handy to prevent that annoying ringing during important meetings or theater visits. A Spare Battery is a good idea especially if you prefer the light weight batteries that don't last as long between charges. Overnight Chargers - all phones should come with at overnight charger.