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Helmet model:


  • OSY-71
USEE - the first head-up display for bicycle helmets. On the move with heart rate... more
Product information "USEE"

USEE - the first head-up display for bicycle helmets.

On the move with heart rate belt and power meter during training?
Convinced e-bike rider and purist on the Specialized Turbo Levo?
All-weather rider who also travels in the darker seasons and wants to explore new areas?

NOW NEW: Helmet options for different Specialized Helmets

The USEE® is a head-up display for cyclists and enables intelligent monitoring of all relevant performance parameters as well as safe navigation in all conditions. In addition to the existing bike computer or even as a complete replacement!

Eyes-on-the-Road-Benefit:  With the USEE® the view remains on the road and the hands on the handlebars.

With a weight of only 20 grams, the USEE® cannot be felt on the helmet. The LCD display allows excellent legibility of the information displayed in any weather situation - with or without glasses. It automatically adapts to the lighting conditions of the environment thanks to the UV collector. The extremely high load capacity and the 100% waterproof housing, combined with a battery life of up to 400 hours, make the USEE® a perfect extension for all cycling enthusiasts who do not want to lose sight of performance or safety.

Display and operation

The display of the USEE® consists of two areas and with the simple One-Button-Desgin you can easily switch through the different display modes. The position of the display can be flexibly adjusted using the adjustable holder.



Four integrated LEDs provide permanent illumination of the display in the dark. So even at night and in fog, all important data remain in view.

Modes of operation

The USEE® can be operated in two different modes.

Stand alone mode:

The data of all connected ANT+ sensors are displayed directly.

For example, speed, cadence, heart rate, power, electronic shifting, e-bike drives with the LEV profile.

Smartphone mode:


The USEE® forms a bridge from ANT+ sensors to any smartphone or sports watch that supports Bluetooth® Low Energy. In connection with our everyday companion, the smartphone, the functional range of the USEE® expands and it becomes a second display. It now displays not only the data from the ANT+ sensors, but also data from the smartphone. The smartphone's display remains switched off, the device is safely stored in your pocket and the battery life is long.

Information such as altitude (GPS), speed (GPS), time or navigation instructions are taken directly from the smartphone and displayed in the USEE®. For this purpose, the apps o-synce mobile* or Naviki** can be used, for example, and the data of all sensors of a ride can be recorded in order to evaluate them later or make them available for well-known training platforms.

Special features

Training computer for ambitious cyclists

The USEE® displays heart rate and current power side by side when connected to a heart rate monitor and a power meter.


Display for E-Bikes

E-bikes with the ANT+ LEV profile (e.g. Specialized Turbo Levo & Kenevo) pass information such as battery status, support level, performance, cadence and speed directly to the USEE®.


*o-synce mobile can be downloaded free of charge from Google Play Store and the App Store.

**The Naviki App can be downloaded for free from the Google Play Store and the App Store. The turn instructions from Naviki cost 3,79€ for Android and 3,99€ for IOS. Offline maps are available from 4,79€.

Related links to "USEE"
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Specifications Features & Sensor integration Battery: CR2032 (up to... more
Specifications Features & Sensor integration
Battery: CR2032 (up to 400h runtime) Travel time
Dimensions: 73x30x30mm Speed (ANT+/Smartphone Mode)
Weight: 20g incl. battery Heart rate (ANT+)
  Cadence (ANT+)
Connectivity Distance
ANT+ for sensor connection
Power (ANT+)
Bluetooth® Low Energy for smartphone connection
Information from electronic shifting devices (gear selection/battery status of Shimano Di2, SRAM eTAP, Campagnolo Super Record EPS, FSA K-Force WE)
"Translator" of ANT+ information to Bluetooth® Information on e-bike drives (battery status, support level, power, cadence, speed, distance via ANT+ LEV profile)
  Time (Smartphone mode)
Package contents Laps (Smartphone mode)
USEE® incl. battery & practical case
Navigation (Smartphone mode)
2 helmet adapters for ABUS GameChanger & Aventor/Viantor Altitude (Smartphone mode)
Device Manual Device Manual: Usage with Smartphone Product Videos more
USEE von o-synce - Helm Display im Praxistest GPS Radler, 23.... more

USEE von o-synce - Helm Display im Praxistest
GPS Radler, 23. Oktober 2018

Weltweit erstes Display für Fahrradhelme
Ketterechts, 15. August 2018

Tour, August 2018

Das Head-up-Display USEE (Du siehst) von o-synce ist ein neues und einzigartiges Produkt, das es so vorher noch nicht gegeben hat. Es projeziert alle Daten, die es von ANT+ Sensoren zugesendet bekommt, ins Blickfeld des Fahrers...



USEE - Weltweit erstes Display für Fahrradhelme
Velomotion, 21.August 2018

Vernetzt auf dem Fahrrad
Süddeutsche Zeitung, 05. Juli 2018
Zweirad Bildschirm
c't magazin, April 2018
Autofahrer bekommen über Head-up-Displays bereits seit Jahren Informationen geliefert, ohne dafür den Blick von der Straße nehmen zu müssen. O-synce will mit seinem USEE eine massentaugliche Lösung für Radfahrer gefunden haben...





Head-up Display o-synce USEE im Hands-on
Pocketnavigation.de, April 2018

Blick immer nach vorn: Head-up-Display für Fahrradhelme
RAD Touren, GPS Guide, Februar 2018
Wer mit dem fahrrad unterwegs ist, muss ständig den Blick wechseln und seine Augen anpassen - zwischen dem Verkehr auf der Straße, der Karte, Smartphone oder GPS Gerät am Lenker. Viel bequemer und vor allem sicherer ist die Fahrt, wenn alles direkt vor dem Auge des Radfahrers erscheint...



O-synce Fahrradhelm-Display gewinnt Golden ISPO Award 2018
Radmarkt, 07. Februar 2018

ISPO Award für Head-up Display USEE
Velostrom, 01. Februar 2018

Momes gewinnt ISPO-Preis für Helmdisplay

SAZ Bike, 30. Januar 2018


Helm Head-up Display USEE gewinnt ISPO Award

Pocketnavigation.de, 27. Januar 2018


Head-up Display USEE gewinnt Gold Winner ISPO Award
ISPO, Januar 2018

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