What all has my iPhone replaced, given me another way to do, or enabled me not to buy

Others have written numerous articles about all of the devices the iPhone (or smart phones) have replaced or are being used in a role in addition to traditional devices:

• http://www.businessinsider.com/the-23-devices-my-iphone-has-replaced-2010-12
• https://www.engadget.com/2009/11/19/buyer-s-guide-33-things-you-don-t-need-if-you-have-an-iphone/
• https://www.geckoandfly.com/13143/50-things-smartphone-replaced-will-replace-future/
• https://www.thrillist.com/tech/things-you-don-t-need-to-buy-if-you-have-an-iphone-tech-that-has-been-replaced-by-your-iphone
• https://www.technologyreview.com/s/428579/a-surprisingly-long-list-of-everything-smartphones-replaced/

My list:

• Cell Phone
• texting was never good like this on old cell phones...
• with technologies like Slack, Jabber, messages, Facebook messenger, WhatsApp, Twitter, Linkedin, and Google's multiple chat apps, I can text message in more ways with more people than ever.
• Pager
• CD player - Music Player -- using local storage
• DVD player - Video Player -- using local storage
• Radio
• Streaming music, Podcasts, Internet Radio, and more
• TV
• I can watch Comcast in my house from my iPhone...
• Netflix
• YouTube
• Web browsing device (on the go)
• Video game machine
• Electronic Book Reader (aka Kindle)
• Books / a library
• Encyclopedia, Thesaurus, Dictionary, Foreign language dictionaries, and more...
• Newspapers and magazines
• Comics
• Training/educational tool
• many educational videos and books
• lynda.com
• Khan Academy
• Voice recorder / Tape Recorder
• Devices (may not have been electronic):
• Mirror
• Alarm Clock
• Watch
• Calculator
• Maps
• This feature keeps expanding.  Now in more and more locations it may even work in indoor locations such as malls.
• Compass
• Level
• Flashlight
• Notepad/Sketchpad
• Calendar
• Address Book/Rolodex
• Photo Album
• Magnifying Glass
• Camera
• Video Camera
• Camcorder
• Pedometer / step tracker
• Diary / Journal
• Tape recorder / Dictation device
• Grocery lists / other lists
• Astronomy guide
• Scanner (scan papers)
• GPS
• Keys
• Can directly unlock connected home locks
• 2nd factor security device (DUO, Google Authenticator, and more)
• Video conferencing system (mobile)
• Computer (albeit a tiny one)
• MS Office, iWork apps
• Video editing system
• Photo editing system
• Sensor/trackers:
• Decibel meter (see just how loud that noise is!)
• seismometer (detect earth movement)
• spedometer
• Health tracker for many kinds of health data.   
• connects via bluetooth to a blood pressure machine to track my blood pressure
• journal for my weight
• step journal
• Remote Control
• both my TV and my Apple TV, but I can also stream content from my phone to my AppleTV, oh and even a remote for my cable box.
• For my thermostat - and soon more via homekit...
• White noise generator
• My wallet (much of the time, via Apple Pay)
• Parking meter change near where I work...
• ATM - partially - I can remotely deposit checks and move and track money
• Stores - I can buy just about anything and get it delivered anywhere!
• Biofeedback device