The smaller lithium jump starters are garbage..... especially if you think you'll be able to use them on a regular basis. It's not just NOCO, which, by the way, is probably the BEST brand of the smaller lithium jump starters. All other brands are even shittier. If you're carrying a jump starter just for your own use, in case of emergency.... then buy whatever catches your eye. They will all work at least once or twice, Even the REALLY cheap ones. ALL lithium compact jump starters will eventually let you down. Usually sooner, rather than later. However, if you plan to use it professionally, like a tow truck driver, roadside assistance guy, auction lot attendant, etc, etc.... then the only real choice is the Clore Automotive JNC 660. Yep, they're really big and heavy. But guess what? They work!
I'm certainly not telling anyone what to buy, I'm just telling my opinion of jump starters. Buy whatever you like, or whatever makes you happy. It makes no difference to me....
Just my $0.02