All apple iPhones products prices are including the parts that needs replacement.
Bought from a trusted apple spare part supplier iSwap.cz
All types of android phones parts gets ordered on request, usually takes a day or 2 to arrive.
You can either chose the services + part from the website or buy the part on your own and ask me to replace it for you.
I always recommend to buy the part for you in order to get you the best fitting quality for your device.