Choosing among coffee kettles, scales & water gear often comes down to one question: do you need basic weighing, or would faster measurements, brew ratios, flow data, and app tracking genuinely improve your espresso or pour-over routine? The BOOKOO Themis Ultra is designed for the second type of buyer.
Quick verdict
At USD 88.88, the BOOKOO Themis Ultra Coffee Scale packs a substantial set of brewing-focused functions into a compact format. Its listed capabilities include 0.1g accuracy, response times under 100 ms, Weight, Flow, Ratio, and Auto modes, plus Bluetooth connections to the BOOKOO and Beanconqueror apps.
That makes it a focused choice for home baristas who want more than a scale that simply displays weight. The trade-off is that its advanced features matter most when you actually plan to track flow rate, brew ratio, or extraction time.
Product note
BOOKOO Themis Ultra Espresso Coffee Scale Bluetooth Flow Rate Timer IP67 White

The clearest reason to choose the Themis Ultra is its combination of rapid measurement and brewing-specific tracking. The scale is described for both espresso and manual brewing, and Bluetooth support can show real-time weight and flow-rate graphs in supported apps. That gives a data-oriented coffee routine more to work with than weight alone.
The main limitation is the open-box condition listed for this unit. It is also a single, battery-powered digital scale, so the purchase is centered on one specialized brewing tool rather than a larger coffee setup.
Who it suits
This scale suits espresso drinkers and pour-over brewers who want to measure dose, yield, extraction time, flow rate, and brew ratio in one workflow. It is especially relevant if you already use, or intend to use, the BOOKOO or Beanconqueror app for brew tracking.
The listed support for compatible ecosystems such as Decent Espresso, Gaggiuino, Odyssey, and GaggiMate adds a practical reason to consider it when your espresso setup belongs to one of those supported systems. Those ecosystem features are less relevant if your goal is simply to weigh coffee and water without recording a brew.
What stands out from the listed details
- Fast response: A response time under 100 ms is listed, alongside 0.1g accuracy.
- Brewing modes: Weight, Flow, Ratio, and Auto modes are included, giving the scale a clear espresso and manual-brewing focus.
- Connected tracking: Bluetooth links the scale with supported apps for real-time graphs and brew analysis.
- Compact design: The description calls it compact, which fits routines where counter space matters.
- IP67 designation: The product title includes IP67, while the listed material is aluminum.
Meaningful trade-offs
The feature set can be an advantage or unnecessary complexity, depending on how you brew. If you want flow-rate graphs and ratio tracking, the Themis Ultra's app connectivity gives the USD 88.88 price a clear purpose. If you only need a simple readout, its additional modes and connected workflow may be more than your routine requires.
The open-box condition is worth weighing before choosing this particular unit. Battery power is another concrete part of the design, while the listed quantity is one digital scale.
Bottom line
Choose the BOOKOO Themis Ultra if your coffee routine includes espresso or pour-over measurement and you want Bluetooth-enabled flow, ratio, and brew-time tracking. Its strongest case is the blend of 0.1g measurement, fast response, multiple modes, and app support. For straightforward weighing without connected analysis, the feature-heavy design is a less direct fit.