iphone,android phones,windows phone, which new you like better?

With the launch of the Samsung Galaxy S4 and HTC One to join the BlackBerry Z10, Nokia Lumia 920 and 928, and Apple iPhone 5, the choices are more numerous than ever before.Which phone should you buy? Now When you're looking for a new smartphone,there should be a lot of reasons around you.

An embarrassment of mobile phone riches makes this a terrific -- and confusing -- time to buy. We'll help you figure out where to start depending on what you want.

operating system:iOS, Android, Windows Phone, and BlackBerry.
User Experience: Elegance vs. Customization.
Design: Blend in or stand out?
camera using.
battery life:long or more?
The keyboard question.
Screen Size: How Big Is Too Big?
Carriers: Tied at 4.
Networking: Tied in 4G.
Apps: Selection vs. Control.

These are what i list from our internet. There are also many tips that will give you a right choice.

The use of mobile phones on health

    Today mobile phones are used for many kinds of purposes, including conducting business keeping in touch with family members and having access to a telephone in the event of an emergency. Some people carry more than one cell phone for different purposes, such as for business and personal use. Multiple SIM cards may also be used to take advantage of the benefits of different calling plans—a particular plan might provide cheaper local calls, long-distance calls, international calls, or roaming. The mobile phone has also been used in a variety of diverse contexts in society.It is our daily life. We have no choice without mobile phones because of its conveniences.

    The preliminary findings, which were presented at a medical conference, raise the possibility that overuse of gaming devices and mobile phones could impact children's joint health, the researchers said.

    According to the preliminary findings,using mobile phones for a long time may cause a lot of effects. Like Radiation absorption, Thermal effects, Non-thermal effects, Blood–brain barrier effects, Cancer, Cognitive effects, Electromagnetic hypersensitivity, Genotoxic effects, Sleep and EEG effects, and Behavioural effects. Then are a pitfall to our health.

    Why do cell phones may cause cancer or other health problems?

    There are three main reasons that telephones might have the potential to cause certain types of cancer and other health problems:

    Cell phones emit radio frequency energy, a form of non-ionizing radiation. Tissues nearest to where the phone is held can absorb this energy.
    The number of cell phone users has increased rapidly. As of 2012, there were more than 3 million subscribers to cell phone service in the United States, according to the Cellular Telecommunications and Internet Association. This is a nearly threefold increase from the 110 million users in 2000. Globally, the number of cell phone subscriptions is estimated by the International Telecommunications Union to be 5 billion.
    Over time, the number of cell phone calls per day, the length of each call, and the amount of time people use cell phones have increased. Cell phone technology has also undergone substantial changes.

    We are expecting new technology that could solve these effects. Humans at that time will live under a clear sky.