Right! With the Prime sale, time to buy! Any suggestions then from the ones mentioned so far?
Note: We have a dog and two cats

Have fairly lowspeed fibre: 28/4 down/up.
Logitech Circle 2
These are £100 wired / £130 wireless : I'd prbably buy two of these (wired). One to sit on the front on the garage to watch the drive, and one to put in our lounge to detect motion indoors when out.
Subscription@ $99 a year for 31 days storage and motion zones and person detection BUT THIS IS PER CAMERA! So you'd need the $179 per year option for 2 or more cameras!
Total: £200 + $179 a year <-- RIP OFF! JUST TAKING THE MICHAEL!!!
Q: Anyone got a battery powered version of one of these? Multi-person geofencing possible?
Netgear Arlo Pro 2
This would be £400 for a two camera version, but then it seems to be the best/platinum solution with loads of bells and whistles like the cameras know when people are home etc.
Subscription: Would need $2.99 x 2 for the 7 days cloud storage + smart detection features. $10 a month for 30 days of storage. You can have local storage (via a USB hard drive).
Total: £400 + $6-10 a month
Ring Security Camera
This is £139, and would just give me a camera over the garage with the benefit of a spot light being controlled too.
Would look to get a Ring/Amazon internal camera when they release one.
Subscription: £25 per year for one camera. £80 for multiple + professional monitor etc etc. Can be included into Rings alarm package too. 60 days storage. <-- BARGAIN!!!
Total: £139 + £25 a year.
Yi
I'd probably go with a single outdoor, and a single indoor one = £43.99 + £46.99
These have microSD slots you can use, but no geo fencing etc. Limited "person detection" is available.
Subscription: $9.99 for 15 days.
Total: £91 + $9.99 per month.