Retention: Up To 10 Days Retention: 6+ Days Final Thoughts The battle between Engel Coolers vs Yeti is a battle that will continue indefinitely. Even Engel coolers claim that Yeti used their design idea and failed. It is all about what you, the user, want from your cooler. The Engel coolers are slightly cheaper than the Yeti, so if cost counts most to you, Engel could be your best bet. However, if you want something that will last forever, that prestigious name, Yeti may be best. If you want your ice and the contents to last for days, both will be able to handle the job, but some say that Engel is best. In our test, Engel definitely held ice better than Yeti.