|Byte Magazine cover from April 1981|
|Apple Watch advert from March 2015 ( 34 years later )|
Keyboard -> Touch screen
Removable media -> Wireless connection
Text screen - > Full graphics screen
Stainless steel strap -> Stainless steel strap ( or leather etc)
Nothing -> Sensors for heartbeat, location, time, motion
Nothing -> Communication connection to iPhone
Text based adventure - > Angry Birds.
Software from early version would have been text based, limited by the lack of sensors, communication and 10 years of smartphone software development.