Nailing down a high-quality mouse sensor is tricky without getting hands-on time with a given mouse. The two key sensor types are "optical" and "laser" sensors, but you can't apply absolutes when judging them. Your best bet is to try out a mouse in person, or to rely on formal reviews like ours, as well as online forums, for the skinny on how a mouse feels in specific play situations.
You can also get a sweet deal by going back in time and looking at laptops with previous-gen CPUs, as they are usually available at fire sale prices and there's not a huge difference in performance between Skylake and Kaby Lake for gaming. You won't be quite as future-proof, but you'll still get several years of great 1080p gaming at a low price. Let's dive into the top picks a cheap gaming laptop:
Gaming laptops can put a serious dent in your wallet, with some of the fancier models costing upward of $3,000. But who says that the right rig has to cost an arm, a leg and the soul of your firstborn? Fortunately for the fiscally conscious gamer, there are some sub-$1,000 notebooks that can run graphically taxing games like Destiny 2 and Shadow of the Tomb Raider at solid frame rates.