Take a look at the RavPower mini external SSD.
Compatible with Apple, PC, Android phones, encryption available by user, comes in 512 gb and 1tb, about $80 & $160 respectively. Cables included. Very satisfied with mine.
Thats a beauty! You could throw it in your bag if you would need to back up while traveling! Such as bugging out during the elections...
I remember my first external drive was as big and heavy as a cinderblock patio paver.
You better have a backup of that. SSD failure modes are not soft—it will be like flipping a switch, and you will suddenly have no recoverable data. I don’t use SSDs for backups.