Unit 14 P3

Phones can connect to other phones via Bluetooth with this you can send photos songs and videos wirelessly with a infrared signal it can only go up to 5 meters at most and then will stop but when your in range you can send items without any cables or anything like that, also with Bluetooth you can share anything that is supported by it games,videos and even ringtones




Wi-Fi is a local network that uses high frequency radio signals to transmit and receive data from far places it is faster than Bluetooth but its also uses more battery than Bluetooth so they both have pluses and minuses but most phones like I phones have it pre installed and over time Wi-Fi is getting more faster and better




4G refers to the fourth generation of cellular wireless standards. It is a successor to 3G and it is the most advanced protocol yet and its also the latest in wireless connection its also ten times faster than 3 g and 15 times faster than 2g



Conclusion

all in all Bluetooth is good in terms of its service but its easy to hack which can result in a bad thing also Wi-Fi will be better over time and it will get more popularity because its pre installed on the latest phones