WHY WE LIKE IT: This portable tire inflator earns our top spot because it's fast, versatile, and easy to use when you need it most. A digital display lets you set your target pressure, and the inflator automatically shuts off when it's reached. There's also a built-in LED light for nighttime emergencies and a USB port that can charge your phone or other small devices while you're on the go. In hands-on evaluations by Car and Driver automotive experts, this model inflated tires faster than many competing options. While it's an excellent choice for most passenger vehicles, the manufacturer does not recommend it for larger truck tires.