Keyboard and interface refers to the style of the screen and keyboard of the phone. On some phones, you use the number keys to type text messages. On some phones, you get a flip keyboard that looks like a standard keyboard. Some phones have touch screens with a display of a keyboard that you use right on the screen. A 4 inch or bigger display refers to the size of the screen. Most phones with 4 inch or bigger display screens are usually touch screen phones.
With every carrier, unlimited data isn’t truly unlimited — but AT&T sets the limit unusually low, with every unlimited plan throttling speed after 22 GB of data usage. That’s half of T-Mobile’s data limit. If you spend a lot of time streaming or browsing social media in places without Wi-Fi, there’s a chance you could go over your limit. And if you want “unlimited” data but no DIRECTV Live, no dice: The pair are inseparable. There are some standard phone plans that have smaller data limits for a lower price, but the comparable value is poor. While you can set your cap at 1 GB for just $25, the 10 GB cap is $75 — more expensive than the standard $70 unlimited plan.
Verizon also offers pay-as-you-go pricing for international travel. You’ll pay 99 cents per minute in Canada and Mexico and $2.99 per minute in other countries for voice service. (Talk rates fall to $1.79 per minute in 140 countries with monthly pricing.) Each text message you send will cost you 50 cents, and each received text will set you back 5 cents. Your data will be charged at a rate of $2.05 per megabyte.
Verizon has shuffled up its unlimited plans, and that has an impact on people who like to use their data plan while traveling. Go Unlimited and Beyond Unlimited subscribers both enjoy unlimited talk, text and data for no additional charge in Mexico and Canada. However, while calls and messages are truly unlimited, data will be throttled from LTE to 2G speeds after 512MB.
New smartphone releases are generally on the pricey side. If you aren't dying to have the latest device as soon as it comes out, waiting a few months for the price to drop can really pay off. Apple products typically take around a year to decrease in price. Most new Sony, LG and Samsung products become substantially more affordable within three to six months after release. Amazon and eBay usually have good selections of these products, and both frequently offer cell phone promo codes and coupons. If you're a dedicated early adopter, look for presales, which might offer an opportunity to save some cash.