Garmin mini, £45 s/h, install free app on phone to review or save video off the cameras own sim card.That’s an interesting idea. So no WiFi or data needed?
A camera might need a bit more data than that if it's recording 24/7, but you can probably find somethingIt looks like the most logical way to go is to buy a EE WiFi thingy which comes with 120gb /12 months of data loaded. And then simply add a IP camera
Just take a still of each "customer" and follow up with a quick stock takeIt’s 120gb a year
I’ve not done the maths yet but might need another plan.