They might not be the lowest price for purchasing the device only. But you get the free O-Team installation that Optus will send the technician to install them for you which cost a lot.
Usually an electricians costs $200 to $300 per visit and it depends on how many devices you want to install. Optus is giving away free installation for up to 9 devices.
Noted that the free installation is for select Sydney and Melbourne metro area only.
Google Nest Cam with Floodlight $439
https://www.smartspaces.optus.com.au/content/smartspaces/en/…
Ring Floodlight Cam Wired Pro $299
https://www.smartspaces.optus.com.au/content/smartspaces/en/…
Google Nest Cam (Battery) 2-pack $495
https://www.smartspaces.optus.com.au/content/smartspaces/en/…
O-Team installation, on us
Enjoy this service at no extra charge (save $240) from 16 June to 30 June 2022. O-Team installation offer applies when booked with purchases of devices or collections from Optus. Available at selected Sydney and Melbourne metro areas. Offer applies to standard installations only. Complex installations or extended electrical cabling may incur extra charges. T&Cs apply.
Keep in mind the google nest cam battery is really easy to install. You can 100% Do it yourself.
The hard wired flood light camera ones will be tougher.