Here's a few examples of tech that is currently around and available :

HOVERBOARDS:

FLYING VEHICLES :
( you sit inside )

ENFORCER BIKES:

ROBOTS: ( mostly supreme, Enforcers and Outriders )

Phones are not as common but are still around.

ENFORCER SUITS:

ENFORCER holographic bracelets: allow them to check in with security cameras and other Enforcers.

Basically an electric grenade

There is currently only one of these, and it's possessed by the leader of the Outriders

SEA BREACHERS:

And oxygen masks:

Of course there is more - but these are just a few ideas.