Fluent GearHear it first

Fluent Gear S1

A coffee scale that does it all on its own. Every feature works without the app.

Hear it first What it works with

Controls

Turn. Press. Brew.

Turn the wheel.

It turns smoothly, with no clicks. A haptic tick tells you each time the selection moves.

Press the glass.

Force touch: push down on the platform to select. The wheel lights green when it takes your press.

Double tap the platform
Touch tare button
Smart tare waits for a stable weight

Connectivity

Open to your whole setup.

The S1 talks over Bluetooth, and it’s open to developers. If your grinder, machine or app doesn’t speak to it yet, it can learn to, and everyone who owns one can share it.

Open

Build on it.

Live weight, tare and the shot timer, over Bluetooth, for anyone who wants to make their coffee corner smarter.

MachinesStop the shot at the weight you set
Brew appsLog every shot and pour as it happens
Smart homeStart the day when the first shot pulls

In the lab

Grinders that dial themselves in.

The scale weighs each shot and tells a connected grinder, which corrects the next dose or says finer or coarser.

Shipped

Apps that already speak scale.

Turn on compatibility mode and brew apps that read a Bluetooth coffee scale read the S1: weight, tare and timer.

Your machine next.

Every espresso corner is different. Add the machine you own, share it, and the next person with that machine just switches it on.

Modes

Five modes, all on the scale.

Scale. Read to 1 g, 0.1 g or 0.01 g. Smart tare waits for a stable weight.

Pour-over

Dial it in. Pour to zero.

Set the ratio.

From 1:5 to 1:30, with the wheel.

Pour to zero.

It counts down the water left to pour, with a bloom countdown, a flow bar and grams per second.

Espresso

The timer starts with the pump.

An accelerometer feels the pump’s vibration, so the clock runs before the first drop. Set a dose and a target, and get an early beep up to 20 g before it.

Inside

What’s inside.

The S1 taken apart: glass top, aluminium body, wheel, circuit board and load cell

24-bit, 40 readings a secondThe load cell’s converter, with an adaptive filter.
About 100 ms behind the cupTimers started by weight are set back by it.
Timers that start themselvesOn weight, on the pump’s vibration, or from an app.
Feel it, hear it, see itA haptic motor, a beeper and lights. Each one can be switched off.
280 × 240 colour screenEvery feature works without the app.
1600 mAhWith a fuel gauge that shows the percent.
Aluminium and glassA CNC-machined aluminium body, tempered glass on top.
Signed firmware updatesOver Bluetooth from the app. The bootloader checks each one before it flashes.

App

The app, if you want it.

Every brew, stored on your phone.

Real screenshots of the Android app on our bench phone.

Hear it first.

Four engineers in Slovenia design and build the S1. One email when there’s something real to see: test results, firmware changelogs, and when you can order.

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