Your buying a watch. It works without the phone. It has Bluetooth and storage to wireless play music to a pair of wireless overhead earphones if you like. There will be third party apps to monitor your sleep. It'll count your steps and tell you when you stand if you're sitting too long and has many other functions. If you have an iPhone you can take advantage of every feature this phone has, and let's face it you wouldn't be on this forum if you didn't have an iPhone. If you can't afford the model you want go down to the next model in the line or don't buy one at all. Apple makes quality stuff and quality stuff costs money.