TIMEMORE Black Mirror Nano Espresso Scale, Flow Measurement (White) Review (2026)

Who the Nano fits

This scale is built for home baristas whose espresso machine has a shallow or narrow drip tray, where a full sized scale either does not fit or crowds the portafilter during a pull. Its compact footprint, roughly 4.5 by 4 inches, is the whole reason it exists as a separate model from TIMEMORE's larger Black Mirror Basic 2, and it still carries the same flow rate tracking that helps you watch a shot's pace in real time rather than only the final weight. It suits espresso focused buyers more than dedicated pour over brewers, since a larger carafe or Chemex sits less stably on the smaller platform. Anyone brewing mostly large pour over batches, or whose machine has plenty of drip tray room, may prefer the bigger Basic 2 instead for its more stable base.

Size, precision and battery explained

The Nano measures about 100 by 115 by 20mm, or roughly 4.5 by 4 by 0.8 inches, and weighs around half a pound, noticeably smaller and lighter than TIMEMORE's full sized Black Mirror scales. It still weighs up to 2000 grams with 0.1 gram resolution, the same precision as the larger model, so nothing is sacrificed on accuracy to get the smaller size. A built-in rechargeable lithium-ion battery, rated around 780mAh, charges over USB-C and runs for roughly 15 hours on a full charge. The flow rate function tracks liquid movement in milliliters per second, separate from the timer, and the scale includes espresso and pour over timer modes that start automatically once they detect a weight change.

Setup, daily use and keeping it clean

In the box, the Nano ships with a silicone heat resistant pad, a USB-A to USB-C charging cable, a user manual and a one year manufacturer warranty card, so it is ready to charge and place under your portafilter right away. Day to day, its small footprint means it tucks under most espresso drip trays without needing to be moved before or after a shot, and the auto timing starts as soon as it senses weight landing on the platform. Despite the compact size, it can still sit under larger brewers like a Chemex for pour over use when needed. The white finish shows coffee drips and stains more visibly than a black scale would, so wiping down the platform and silicone pad after each session keeps it looking clean.

Trade-offs and how it compares to the Basic 2

The smaller platform trades away some stability for larger pour over vessels, since a bigger carafe can feel less secure on the compact base than it would on the larger Basic 2. The white finish also needs more frequent wiping than a black one to avoid visible coffee stains building up over time. Against the Basic 2, which ties it at the same 8.6 score in the site's guide, the Nano's main advantage is fitting into tight spaces under espresso machines where the bigger scale would not, while the Basic 2 offers a larger, more stable platform for pour over brewing. Against lower ranked rivals like the Weightman and Maxus scales, the Nano's flow rate tracking and TIMEMORE build quality remain the clear step up despite its small size.

Verdict and who should pick the Basic 2 instead

Choose the Black Mirror Nano if your espresso machine has a tight drip tray and you want flow rate tracking and precise weighing without a scale that crowds the portafilter. It ties for the top score in the site's espresso scales guide, and its compact size is a genuine advantage for anyone who has struggled to fit a full sized scale under their machine. If you mainly brew pour over in larger carafes or a Chemex and want more platform stability, the larger Black Mirror Basic 2 is the better pick at the same score. Buyers who do not mind occasional coffee stains on a white surface will find little to dislike here, but anyone who prefers low maintenance finishes might lean toward TIMEMORE's black models instead.

Frequently asked questions