Wirecutter

If you want a basic Qi wireless power bank that offers speedy charging at a good price, this Aukey model delivers. But don’t expect extras such as a kickstand or an adhesive surface.

Best for Most

walmart

cnet.com

This compact, lightweight charger supports wireless charging and has an OLED screen that displays battery life and other metrics. It’s not quite as powerful as our other picks, and it doesn’t come with a wall charger, but it recharges with any compatible DC or USB-C charger.

amazon.com

TechGearLab

If you're an iPhone user seeking the smallest, most compact charger you can get, then the Clutch Charger should be your go-to. This petite portable is roughly the size of a few credit cards stacked together, and you can easily carry it in a wallet or pocket without it being cumbersome. Even better, it has a built-in Lightning cable, so you don't need to worry about forgetting to bring one. 
Unfortunately, this charger isn't as versatile as other products we have seen. It can't recharge multiple devices at once and is only compatible with iPhones. The Clutch also doesn't have all that much capacity &mdash; generally limited to a single charge or less. It's a great product if you want to make sure you always have enough juice in your iPhone to make a call or summon an Uber, but you'll probably be disappointed if you expect more than that. 

If you're an iPhone user seeking the smallest, most compact charger you can get, then the Clutch Charger should be your go-to. This petite portable is roughly the size of a few credit cards stacked together, and you can easily carry it in a wallet or pocket without it being cumbersome. Even better, it has a built-in Lightning cable, so you don't need to worry about forgetting to bring one. 
Unfortunately, the Clutch Charger isn't as versatile as other products we have seen. It can't recharge multiple devices at once and is only compatible with iPhones. It also doesn't have a very high capacity, generally limited to a single charge or less. It's a great product if you want to make sure you always have enough juice in your iPhone to make a call or summon an Uber, but you'll probably be disappointed if you expect more than that. 
Read more: Clutch Charger review

This sleek, slim charger has two USB-A ports and a USB-C port that lets you charge most laptops (and the charger itself) with up to 60 watts of power.

expert-review

The Best Power Banks for Laptops With USB-C

Able to charge even large phones like the iPhone 12 Pro Max or Google Pixel 4a from empty to full nearly three times, this super-pocketable power bank offers the fastest charging and recharging speeds of any model we tested.

Power Bank Comparison