The iPhone Air is a marvel of modern engineering. Thanks to its thinness, it also needs a little power boost some days to make it from sunrise to sunset. The Anker Nano MagSafe Power Bank is compatible with all Qi2-charging phones, but was designed with the iPhone in mind. It measures just 0.3" thick, with a 5,000mAh battery that can juice an iPhone 17 Pro from 0% to 25% battery in just half an hour.