1 This battery pack can charge an iPhone or iPad on the go (its 6000mAh capacity can give you a couple of iPhone charges, or around half an iPad Air charge), but it has very clever, useful features. It can tell you when it needs charging itself, and can even remind you to do so before a busy day (based on your calendar entries), through notifications to your iPhone (via its app). And it works! It’s not cheap for a battery pack, and is fairly large for its capacity, but that first time it saves your bacon you’ll be glad you splashed out for it. Matt Bolton
The impracticality of the hub’s USB plug overrides the positive of the seemingly neat portable design – shame.