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Not Sure Which Themis to Choose?

Themis Mini

Best for Compact Espresso Setups

A compact scale for small espresso setups, from tight drip trays to Flair 58, Micra, and travel kits.

  • Fits narrow espresso drip trays
  • Smallest footprint
  • Ideal for Flair 58, Micra, and travel setups
  • Best choice when space is your top priority
View Themis Mini →

Simple rule: Choose Ultra if you want one scale for every brew. Choose Mini if your setup needs the smallest possible footprint.

Why Should One Spill Kill Your Coffee Scale?

Most scales aren’t built for real brewing environments. Themis Ultra combines full IP67 waterproof protection with a protected, long-lasting battery built to withstand spills, steam, and constant rinsing.

Ordinary Scale
Ordinary Scale
Water Damage
Displays fail and electronics short after exposure.
Battery Degradation
Constant heat and moisture trigger battery swelling.
Unstable Measurements
Heat and steam destabilize live data.
Themis Ultra
Themis Ultra
IP67 Sealed
Resists direct rinsing, splashes, and steam.
Protected Cell
Enclosed 2000mAh battery built for years of use.
Stable Readings
Temp-compensated sensor ensures precision in any environment.

Built for the Messy Side of Coffee

Coffee is messy. Spills happen. Steam builds up. Drip trays overflow. Themis Ultra is built for exactly that—IP67-sealed, steam-resistant, and designed to live beneath your machine everyday.

A Battery That Lasts — For You and the Planet

Get up to 72 hours of continuous use with the 2000mAh protected cell. That’s roughly 840 five-minute pourovers on a single charge.
72H
Continuous Use
3.5H
To Full Charge
USB-C
Charging

One Scale. Every Brew Covered.

Themis Ultra is slim enough to slide under espresso machines, yet wide enough for pour-over servers, dosing cups, and portafilters.
Themis Ultra product dimensions
Slides Under Your Machine
At just 1.8cm thin, it fits where bulky scales cannot.
1.8cm Profile Auto timer Real-Time Tracking
Fits Your Larger Brewers
With 3kg max, it supports larger drippers and multi-cup servers.
2kg Capacity Live Flow Rate App-Synced Records
Dose Before You Brew
Weigh beans, grounds, dosing cups, and portafilters with one scale.
127×112mm Deck Instant Tare Real-Time Response
From Prep to Extraction
From weighing and timing to flow tracking and brew records.
Bluetooth 5.0 Data Integration App Analytics

No Drift / No Delay / No Doubts

Tired of jumpy, laggy, inaccurate readings? Themis is built different.
RESPONSIVENESS
<100ms

Reads every drop the moment it lands. Keeps up with your pour, not behind it.

Precision
0.1g

Highly sensitive weight tracking from grounds to yield.

Stability
±0g

Reliable reading consistency from center to edge.

All You Need. Nothing You Don’t.

Streamlined for real coffee workflows—without the overload.
BOOKOO feature image
BOOKOO feature image
BOOKOO feature image
BOOKOO feature image

Weight Mode

Focus on the numbers that matter. Fast, responsive measurements with a clean, distraction-free display.

BOOKOO feature image

Ratio Mode

Automatically calculates your brew ratio in real time, allowing you to reproduce your favorite recipes with confidence.

Flow Mode

Tracks your flow rate in real time, helping you refine your pouring technique and better understand extraction dynamics.

BOOKOO feature image

Auto Mode

Designed for a distraction-free workflow. Automatically starts timing on the first drip, so you can stay focused on brewing.

Smarter, Connected, Always Evolving

Real-time weight & flow rate tracking

Brew with precision by monitoring weight and flow in real time.

Visualize your brew in real-time

See your extraction unfold live for perfect control.

Follow or repeat brews using recipe ghosting

Follow and replicate your favorite brews with ease.

Perfect for training consistency

Track and learn from every brew to perfect your skills.

Everything you brew with, fully integrated.

Unlock automated, yield-based brewing by connecting your favorite apps with smart Bluetooth machines.

Supported Apps
  • BOOKOO N App
  • Beanconqueror
  • Odyssey Espresso
  • DEESPRESSO App
Smart Espresso Setup
  • DECENT Espresso Machine
  • Maro Espresso Machine
  • Wendougee (DATA and LITA series only)
Upgrade Systems for Coffee Machines
  • Gaggiuino
  • Gaggimate

Specifications

All key product details in one clean, easy-to-read view.

Product

Product Name
BOOKOO Themis Ultra Coffee Scale
Product Weight
Approximately 380 g
Product Dimensions
W127mm × L112mm × H18mm
W5" × L4.41" × H0.71"

Measurement

Maximum Capacity
2000g / 70.55 oz
Minimum Capacity
0.1g
Readability
0.1g

Power & Battery

Charging Port & Power
USB-C 5V1A
Battery
Lithium-ion rechargeable
3.7 V / 2000 mAh
Battery Life
72 hours
Auto-Off Timer
15 min, adjustable in BOOKOO N App

Materials & In the Box

Main Material
Abrasion-resistant engineering plastics, steel plate, food-grade silicone
In the Box
Scale × 1, Silicone Pad × 1, Charging Cable × 1

Product comparison

Performance

Fast, precise, stable

Performance

Fast, precise, stable

Smart Features

Bluetooth enabled

Smart Features

Bluetooth enabled

Design

See- through, modern aesthetic

Design

See- through, modern aesthetic

Charging

USB-C rechargeable

Charging

USB-C rechargeable

Size & Fit

Full-size, works with espresso &
pour-over (even small drip trays)

Size & Fit

Ultra-compact, espresso-focused

Battery Life

2000mAh — 72h use,
~6 months per charge

Battery Life

500mAh — 24h use,
~2 months per charge

Color Options

Black & White

Color Options

Black Only

Display

Up to 3 metrics at once
(e.g. time, flow, weight)

Display

Up to 2 metrics at once
(e.g. flow, weight)

Modes

4 modes — Weight,
Flow Rate, Ratio, Auto

Modes

3 modes — Flow Rate, Time, Auto

Material

Reinforced, heat-resistant PC shell with internal steel plate

Material

Tempered glass top
+ aluminum chassis

New to Themis Ultra ? Start Here.

Step-by-step guidance for setup, modes, and daily use.

Product Guide

Product details

Specifications

Product Name:BOOKOO Themis Ultra Coffee Scale
Product Weight:
Approximately 380 g
Product Dimensions:
W127mm*L112mm*H18mm(W5"*L4.41"*H0.71")
Maximum Capacity:
2000g / 70.55 oz
Minimum Capacity:
0.1g
Readability:
0.1g
Charging Port&Power:
USB-C 5V1A
Battery:
Lithium-ion rechargeable 3.7 V 2000 mAh
Battery Life:
72 hours
Auto-Off Timer:
15 min (adjustable in BOOKOO APP)
Main Material:
Abrasion-Resistant Engineering Plastics, Steel Plate, Food-Grade Silicone

Warranty

1-year warranty, covering hardware and manufacturing defects under normal use. This ensures your scale is protected and built to last throughout countless brews.

Customer Support

Have a question or need help? Our dedicated support team is here to assist with troubleshooting, replacements, or inquiries. Just email support@bookoocoffee.com and we’ll take care of you.

What's in the box?

  • Ultra Coffee Scale

  • Silicone Pad

  • Static Protective Film*2

  • Type-C Cable

Espresso (positive)Bluetooth (positive)Price (positive)Scale (positive)Size (positive)
  • 5 stars: 312 (81%)
  • 4 stars: 48 (12%)
  • 3 stars: 21 (5%)
  • 2 stars: 2 (1%)
  • 1 star: 2 (1%)
A
Anonymous
Very nice scale!

I highly recommend this scale! It's really nice to have an indication of the flow rate!

S
Salim Al Harthi
Great scale with excellent

Great scale with excellent features!

j
julio cesar alcala guillen
Magistral

Excelente balanza en todas las necesidades

A
Anonymous
The unit does not work and nor does the replacement in my kitchen

The unit does not work and nor does the replacement in my kitchen. Apparently the capacitive touch buttons are susceptible to electrically noisey kitchen. Bookoo have been very responsive and are trying to come up with a solution.

H
Hams Alrash
L
Lee Porter
Perfect complement to the Themis Mini

I love the Themis Mini since it ill fit where so many scales won't. That being said, sometimes it's hard to read the numbers if your cup is too large. If you're not crunched for space, the Ultra is perfect. Large platform for larger cups (or two cups with a 2 spout portafilter if you choose). Easy to read numbers. Already know which buttons to push and and in what sequence since it's basically the same as the Mini. Not sure how long a battery charge lasts (still on the first charge). I like that it's not glass (I have two Minis, one was dropped and I cracked the face, so I purchased a second one, but the cracked one has clear tape over the crack and has been working fine. Works great for espresso and pour over. If it's a little too thick to fit in some situations I switch back to the Mini. I still love my Lunar but it doesn't get used much anymore :-).

R
Robert Mckee
I was skeptical I would like this scale; better than acaia lunar

I was skeptical I would like this scale, because I’m a bit of a minimalist (I don’t need to see the inside). But the scale is well built, feels solid in my hand, and works better than my acaia lunar scale (and I’m not just saying this because Bookoo gave me a coupon), which I can no longer use to weigh coffee beans (since software upgrade you cannot stop auto tare, and the company feels no need to fix it).

R
Reggy Cheuk a lam
Amazing scale for the price

Amazing scale for the price , does what it most do.

A
Anonymous
If it was thinner, it'd be perfect

Only complaint is the height. In all other respects, it's perfect.

R
Raymond Mullin
A
Anonymous
Best looking scale in da biz

Best looking scale in da biz.

P
Peter Kletzenbauer
Awesome coffee scale with a perfect size!

I love this coffee scale because of its size and its features for the price. I use it for espresso and filter coffee every day. Big recommendation!

J
Juan Cantais
Very Nice and fast scale

Very Nice and fast scale.

T
Taiki Yamamoto
W
Wayne
Great product

Great product, solid as a rock.

N
Noam Dror
C
Colin Heer
hopefully soon a 5/5

The beep is very satisfying and the build quality over all superb. Good size for both espresso and pour over (etc) use.
The power button being on the left needs time to bring my head around. I would love to see being able to map the buttons long and short press functions in the app. I love the feature to disable certain modes in the app.

M
Max Groves
I actually love this scale! missing one of the rubber pads so it doesnt sit level and grip properly

I actually love this scale!
missing one of the rubber pads so it doesnt sit level and grip properly.

K
Khairil Hodgson
Excellent scale

Excellent scale, works flawlessly

A
Andrew
Works great with Gaggimate

I’m using this scale in Weight Mode linked via Bluetooth to my Gaggimate and it works very well for that. It connects quickly and measures the weight of the espresso pouring into the cup nicely. Before the Gaggimate I tried it in Auto Mode and it was horrible. My coffee machine vibration (not much) would trigger the timer start before any coffee landed in the cup and the weight would even grow without coffee pouring. Auto mode was very poor for me but perhaps there’s more to making it work than what is written in the brief instructions.

A
Andy
Really great product

The build quality and accuracy are far beyond my expectation. A real treat for coffee enthusiasts like me.

R
Ryan Stephens
Connected into Decent DE1xxl with no problem

Connected into Decent DE1xxl with no problem. Pulling much more consistent shots with bluetooth control of espresso machine

D
Dmitry Shapran
My first serious scales for coffee

My first serious scales for coffee. I am pretty happy about it. There some notes about delivery: it was packed in original branded carton box and in another carton box, which was completely destroyed by the post. I was scary that scales could be destroyed too, but luckily it was good.
Other note which I have is display: the dot style display like in mini scales was more stylish compare to the display of ultra, which looks cheaper..