It's up to you personally to choose. If you are far from the topic of smartphones and applications, this is undeniably iOS. Due to a closed operating system and an OS made for hardware, and not vice versa, this system is very optimized and has rare jumps (not critical, like 1970). If you know where you can't climb and you know how to manage the system, Android will satisfy your desires.
Taste and color, but ... A little observation) Apps on ios are more expensive than those on google play. Although if you have money for an iPhone, you will not feel the difference))))
iPhone is better for me :). Let's start with the difference in operating systems. Android thing is universal and open, with the ability to install in almost any gadget. iOS is adapted to a narrow line of devices, i.e., when updated, it adapts specifically to the apple model, which makes it less versatile (but why versatility?) and allows you to remove unnecessary things from the system and focus on the quality of the product. Thus, the maximum adaptation of the firmware to the hardware is carried out!
The biggest problem of the android as an operating system is automatic garbage collection. Android is written in java and the developer is not able to manage garbage collection. That is, after exiting the application, the memory is not really cleared and the performance drops. Yes, the developer does not need to worry about this, but it is because of this that the device quickly sits down and even the top flagships on the droid do not work super: /. In Aios, on the other hand, cleaning takes place immediately after release and the developer must take care of this.
Unfortunately, imported devices get a huge boost from us and new models of "apple" have sky-high prices for the average layman. In the USA, it is possible to conclude contracts with local operators and, also, loyalty programs to exchange an old model for a new one, which significantly lowers the price and makes it possible for almost everyone to purchase a fresh model.
Someone can argue with me, but the stuffing in Apple is always innovative. Who was the first to come up with Retina displays that are so pleasing to the eye? Who first started using capacitive multitouch, and later 3d-touch? And another modest innovation is the first electronic micropayments. This is all Apple's credit.
So, an isolated well-adapted OS, a closed file system, usability, high-quality stuffing, but incompatibility with third-party devices, specific connectors and fixed memory.
And choose what is best for you, actually, you :)