Though smart phones come built-in with a lot of hardware features, such as the phone camera and speakers. However, there are several other accessories that you could get which could either help with improving the durability, or even letting you do new things. Here are some accessories that you may want to get for your phone.
This is a sticker that you will stick on your phone display to help protect it from scratches or even cracking. They come custom made for your phone model, so you will need to make sure that you get the correct tempered glass for your phone. For instance, if you own an iPhone, you will want to get an iphone screen protector on this webpage so that it fits the phone correctly. The advantage of getting a tempered glass sticker would be that it could even protect your phone display from getting damaged in the case that it is dropped. Most phones nowadays do come with tough displays that are scratch resistant, but it will still be good to get added protection.
This is a rather recent mobile phone accessory which stands for On the Go. What this lets you do is connect devices that use a USB port, with your phone. This mainly includes flash drives, which could serve as a memory extension for your phone if your phone does not allow adding an SD card as memory storage. Other devices that you could connect would be gamepads which you could use for gaming on your phone. However, not all phones will be compatible with this feature, so you should check for compatibility first.
If you are constantly on the move, or if you use your phone frequently, you will find the battery draining quite often before you could get it charged again. By getting a portable charger, you can charge your phone while you are on the move. Once again, if you own an iPhone, you will need to make sure that this supports an prepaid sim card USA. Another option would be to get a power bank, which you could use to charge your phone. The advantage with the power bank is that it is small, so you can carry it with you wherever you go. These may not be as efficient as your stock charger, but they do get the job done.
These are just a few of the accessories that you could get for your phone. They will need to be purchased separately, but make sure you check whether they support your phone before you buy it.