Quick takeaway
DEWALT 20V MAX Cordless Drill / Driver Kit (DCD777C2) leads this matchup 1 to 0 on measured spec rows and by 100 points overall. DEWALT 20V MAX Cordless Drill / Driver Kit (DCD777C2) is also about $20.00 cheaper at the latest tracked price.
Choose DEWALT 20V MAX Cordless Drill / Driver Kit (DCD777C2) if...
Pick DEWALT 20V MAX Cordless Drill / Driver Kit (DCD777C2) if voltage are the reasons you are shopping in this category.
Choose Ryobi ONE+ HP 18V Brushless Drill if...
Pick Ryobi ONE+ HP 18V Brushless Drill if its current price, brand, or design fits your shortlist better than DEWALT 20V MAX Cordless Drill / Driver Kit (DCD777C2). It currently costs about $20.00 more, so make sure those wins matter to you.