The OutIn Nano is the electric alternative to Wacaco's manual pumps — a built-in heater and battery-powered pump do the work automatically, at 20 bar, with no arm workout required.
Check price on AmazonQuick specs
Fully electric — heats 50ml of cold water to about 198°F in roughly 3 minutes, then pulls a shot automatically at 20 bar pressure, no manual pumping. Three 2500 mAh rechargeable batteries good for roughly 3–5 shots from cold water (or 200+ shots using water you've already heated), charges via USB-C or a 12V/24V car charger, weighs about 670g, works with both ground coffee and Nespresso-style capsules.
Who it's designed for
Desk, office, car, or RV use where you have reliable access to charging — this is the "push a button" option in the portable espresso category, trading some bulk and battery management for zero manual effort.
Worth knowing
- Battery life is the most-cited limitation — brewing from cold water drains it fastest, and cold ambient temperatures shrink the shot count further (some users report as few as 3 shots per charge in freezing conditions)
- At roughly 670g it's noticeably heavier than either Wacaco device, since it's carrying batteries and a heater
- Skipping regular cleaning reportedly degrades performance over time, same as any machine with internal components
How it compares
- OutIn Nano vs Nanopresso/Picopresso — the OutIn Nano is the only one of the three that heats its own water and needs no manual pumping, but it's also the priciest and the only one that requires charging
- OutIn Nano vs a capsule-only machine — the 2-in-1 ground coffee and capsule compatibility is a genuine advantage if you want the flexibility, without carrying two devices
Bottom line
If you want the most hands-off portable espresso experience and don't mind managing a battery, the OutIn Nano is the pick — anyone who wants zero electronics to charge or maintain should look at Wacaco's manual Nanopresso or Picopresso instead.