25 Apr Apple Connectivity Technology
You Can use Bluetooth devices such as wireless headphones, speakers, car kits & more with iPhone .
Note : The use of certain accessories with iPhone may affect wireless
performance . Not all iPod & iPad accessories are fully compatible with iPhone .
Turing on airplane mode may eliminate audio interference between iPhone & an accessory .
iPhone must be within about 10 meters ( 33 feet ) of the bluetooth device
The 4G technology is the successor to the 3G technology. Cellular providers are still building out their 4G networks. Theoretically, 4G is much faster than 3G. But before we start comparing 4G speed to 3G speed, it is important to understand there are different versions of 4G.
When talking about 4G, things can get a little confusing. Basically, there is 4G and 4G LTE. Many people consider LTE to be true 4G technology. Generally, if a cellular provider describes a 4G network without mentioning LTE, they are probably talking about a High Speed Packet Access (HSPA) network. The HSPA network is a faster version of the 3G GSM network. While not as fast as an LTE network, it is still faster than a 3G network. Since LTE is still relatively new, the cellular providers haven’t fully built out their LTE networks yet. Be careful when looking at the network coverage maps on the providers’ websites.
you can browse the web, stream content, or download a movie at blazing-fast speeds. For a list of carriers that have certified their LTE network on iPhone, refer to chart below1. Many more carriers may also offer LTE on iPhone. For more details, contact your carrier
Since the launch of IOS 5 many years ago (to put that into context, we’ll be switching to IOS 10 in autumn 2016), it’s been possible to set up and use an iPhone or iPad without connecting to a Mac or PC at all: you can set up on the device and download apps and media you buy from Apple’s stores directly on to the device. As Steve Jobs put it (rather prematurely, it turns out), it’s a post-PC world.
But there are lots of occasions when it still makes sense to do things the old-fashioned way. Downloading hefty apps over Wi-Fi – or, worse still, 3G – can be a long-winded process, and it’s often more sensible to download content via a wired broadband connection first. (In recent years we’ve found it more convenient to download major IOS Updates to a Mac before syncing them to our iPhones and iPads. It’s more space-efficient this way.) And if you’ve already got media stored on your Mac or PC and want to consume it on your iPad or iPhone, it makes most sense to connect the devices and sync them up. We’ll walk you through this procedure in this article.
(When we say ‘connect’, this doesn’t necessarily involve a physical cable between the computer and the mobile device. iOS 5 also brought in the ability to sync over Wi-Fi, and we’ll cover that below too.)
The Lighting connector
The Lighting connector uses an 8-signal design that works in both orientations, so you never need to worry if you’ve inserted the plug the wrong-way-up. Apple says that in addition to being easier to use, the Lightning connector is also more durable than its predecessor. The company also describes the new connector as all-digital.
Of course, the other big advantage of the Lightning connector is its size: It’s 80 percent smaller than the 30-pin connector, which means the space required on your device to accomodate the new plug is smaller by at least the same amount–and that’s not counting the reduction in the amount of interior circuitry required to support the connector’s features. This new, smaller connector is part of the reason the new iPhone is 20 percent thinner than the iPhone 4S. (The other part is that the iPhone screen’s touch sensors are now integrated into the display, so the display itself is thinner.)
The best Sensors That Make the iPhone Useful
Noise cancellation – One such feature that filters out side noises and allows you to hear your callers more clearly is noise cancellation. It uses the multiple microphones on the iPhone, takes their input and filters out the ambient noises, lowering them down in volume or completely eliminating them. But did you know that it is a software-dependent feature that could be enabled and disabled?
If you are not sure whether your iPhone is using noise cancellation, you can use this quick step-by-step guide that shows you how to turn the feature on and off. It’s all easy and straightforward when you know where to look.
Proximity sensor – This sensor can determine how close the iPhone is to your face. This sensor is what helps the iPhone turn off its screen automatically whenever you hold the phone up to your ear for a phone call. This is necessary to prevent accidental button clicks by the side of your head when talking. This sensor is only on the iPhone (the other devices don’t need it since you don’t make calls on them).
Motion sensor/accelerometer – This sensor enables the iPod touch, iPad, or iPhone’s screen to automatically switch from landscape to portrait modes and back again based on whether you’re holding the phone up and down or sideways. This sensor is also present in the iPad.
Ambient Light sensor – This sensor can determine how much light is available in the area surrounding the iPhone, iPod touch, and iPad and automatically adjust the brightness of the screen in order to conserve battery life
Moisture sensor – The devices also contains a fourth sensor, though this one isn’t related to the interface. The water sensor is a little red tab that appears in the dock connector when the phone has been submerged in water. It can also appear as a red dot in the headphone jack. If you’re buying a used iPhone, it’s a good idea to check for this indicator to make sure the device hasn’t been damaged by water.
Gyroscope – Starting with the iPhone 4, 4th gen. iPod touch, and iPad 2 there’s another sensor: a three-axis gyroscope. When combining the gyroscope with the accelerometer, this gives these devices six axes on which it can operate. This is designed to make them more sensitive, responsive, and powerful for gaming.
Compass – All iPhone models starting with the iPhone 3GS also have a compass built into them. This sensor is used with the devices GBS and other location awareness features to help determine your iPhone’s location, which direction it’s facing, and how to get you where you’re going.