MagGo パワーバンク（10K、35W、Apple Watch対応）

This thing charges my phone and Apple Watch at the same time without any fuss, and the 35W output actually keeps up while I'm using it. The built-in screen display is a nice touch, showing me exactly how much juice is left so there are no surprises.

The little screen showing the battery percentage is a game changer, I can finally stop guessing when I need to charge. It topped up my phone and Apple Watch on a weekend trip without breaking a sweat, and the size feels just right for a pocket.