Cell phone buying advice. Thank you for your time?

Comparing:1. Motorola Moto G (2nd generation) Unlocked Cellphone, 8GB, Black $100
2.Sharp Aquos Crystal Silver (Boost Mobile)
$75
3.Motorola Moto E (2nd Generation) Unlocked Cellphone, Black $70
4.Microsoft Nokia Lumia 640 LTE
I am looking for a cell phone that I can connect with the internet to store the information I put in which is calendar, to do list and contacts. I have been able to connect to a calendar in google account with a LOGIC x1 phone. For a to do list I was thinking wunderlist but it is not compatible with lumia 520. I need a good camera to take pictures of pages in books and nature. I want to record videos playing piano. I need a good working speaker. Decent sound recording, alarm. Decent batter life. So far the best service provider i found is h20 wireless that charges.05 per minute i think, and the option of adding money for three months that ranges around $10-30 or more. I am looking to save money that is why the budget options.

Read more: Cell phone buying advice. Thank you for your time?