IKAPE Kapo K2 Portable Espresso Machine (51mm)

The Kapo K2 packs a semi-automatic-style 51mm brew head and bottomless portafilter into a device the size of a thermos, with a self-heating function that brews a hot shot from room-temperature water. A 3 to 5 second pre-infusion soaks the grounds before full extraction, which helps reduce channeling, and the removable portafilter takes different baskets like a home machine would. The 13,500mAh battery can pull up to 500 cups when using hot water, or 6 to 10 shots when self-heating from cold water, roughly double what most portable machines manage, and it recharges over USB from a wall outlet, car charger, or power bank. Bluetooth and app connectivity let you schedule brewing remotely. Weighs 780g; dimensions: 22.4 by 7.3cm; basket capacity: 14 to 18g, 16g recommended, swappable for other single-shot or high-extraction baskets.