Apples to Oranges. Google replicate and have roughly ~ 3 copies of your data, your 1TB hard drive does no such thing, has zero redundancy, isn't available from your phone, can't automatically backup photos from it, etc.
except only reason many if not most of the people keep using google photos is free unlimited photo backup, let's see how many people keep using it when they run out of those 15GB
you can have redundancy with two drives for price which will pay itself within less than two years and you will have significatntly bigger backup capacity for connecting external harddrive directly to your phone through USB OTG and pressing one button, I find that extremely convenient, after all automatic google backup was pretty fucked up and freezing and unstable for years
what is the most important is you have your data backed up and it does not matter whether you have to connect drive and press one button or it us supposedly done automatically
you can have redundancy with two drives for price which will pay itself within less than two years and you will have significatntly bigger backup capacity for connecting external harddrive directly to your phone through USB OTG and pressing one button, I find that extremely convenient, after all automatic google backup was pretty fucked up and freezing and unstable for years
what is the most important is you have your data backed up and it does not matter whether you have to connect drive and press one button or it us supposedly done automatically