Pairing your Android Wear with your iPhone is not a difficult task to do. Although these two devices look like a very odd mix, it is definitely a possible combo. In fact, it's actually a good combination, just as long as you know the limitations and strengths of using an iPhone with an Android Wear.
How to pair an Android Smartwatch with an iPhone:
Start off by downloading the Android Wear app from your App Store and make sure that Bluetooth is turned ON on your iPhone.
Once pairing is initiated, there will be a code that will appear on the watch. Enter that code into the app. The app will then ask permission to enable notifications and get access to your calendar. This way you would be able to get a buzz on your wrist when a notification from your iPhone comes up.
Practically, that is all that you need to do, you are already paired up and ready to enjoy the two devices' features. Within the app, you can choose from multiple watch faces that come with your watch brand. Others come from the third party, but it won't be as many as what you can get from Android since the developers are usually submitting their watch faces to the Android Google Play Store.
Using Voice Command
Most performance found in the Android Wear comes from voice commands. You can simply speak to the watch anytime and say "Ok Google" and then say your query. Once a phone icon appears on the watch, just press it so you can view the results inside the iPhone Android App.
What To Expect
If you have used, or at least played with an Apple Watch before, you're gonna have to re-think your expectations towards the pairing of your Android Wear and your iPhone. Functions are predictably limited and the Watch may simply act as a notification device. If you don't expect the Android Wear to be an Apple Watch to your iPhone, it will actually be enough. Its functions may be all that you need to get by with your daily activities. The best thing about choosing Android Wear is the variety of options you have in the type of wearable you want to get.
Lastly, one important thing to keep in mind in getting an Android Wear for your iPhone is that you need to get a newer device such as the "LG Watch Urbane", "Huawei Watch", and the likes. Some people also succeeded in using earlier smartwatches but there is no assurance that it can work on all older devices.