SENA C1 SMART HELMET

Add communication to your next bike ride with the Sena C1 smart helmet.
The C1 is equipped with a Bluetooth® communication system, complete with speakers and a microphone.
Whether you are looking to chat with other riders or simply listen to music on your ride, the C1 will take your ride to the next level.

  • 4-Way Intercom
  • Intercom Range 300 m / 0.2 mi
  • LED Taillight
  • Fitness App Compatible
  • Smart Intercom Pairing
  • Sena Smartphone Apps
  • RIDER-TO-RIDER INTERCOM

    The C1 features built-in 4-way Bluetooth® intercom, allowing for full-duplex communication between riders. The working intercom distance is 0.2 miles (300 m) in open terrain. Helmet-to-helmet communication allows riders to effortlessly talk to one another without having to shout or use hand signals. The C1 has a talk time of up to 10 hours or up to 6 hours with the taillight on.

  • BUILT-IN TAILLIGHT

    The C1 features a built-in taillight, improving rider visibility on the road. With three brightness settings, you can enhance clarity in different lighting situations. The brightness settings include On, Day Flash, and Night Flash. The C1’s taillight settings can be adjusted remotely in the Sena Cycling App.

ENERGIZE YOUR RIDE
WITH SENA APP

Simply pair one of your Sena helmets or communication systems with the Sena Cycling App for quick setup and easy management. You can pair/connect your device through the Bluetooth settings menu on your mobile phone. The Sena Cycling App is compatible with Sena's helmets and communications systems for cyclists.

COLORS

The Sena C1 comes in sizes medium and large in Matte White and Matte Gray.

Matte White
Matte Grey

SIZING GUIDE

HOW TO MEASURE
  • Wrap a soft, flexible measuring tape horizontally around your head 1 inch above your eyebrows and ears. Pull the tape softly snug, read the length and repeat for accuracy. Use the largest measurement.
  • Select the helmet size that is closest to your head measurement from the size chart below.
Size Head (Centimeters) Head (Inches)
M 54   –   58 21  1/4   –   22  7/8
L 58   –   61 22  7/8   –   23  3/4

KEY FEATURES

  • 4-Way Intercom

    Connect up to 4 headsets together for a group intercom conversation.

  • Intercom Range 300 m / 0.2 mi

    Maximum distance operating within optimal conditions.

  • LED Taillight

    Integrated rear light with three brightness settings.

  • Fitness App Compatible

    Listen to audio feedback from smartphone fitness apps.

  • Smart Intercom Pairing

    Pair devices through smartphone QR scanning.

  • Sena Smartphone Apps

    Allow you to configure device settings, access the User's Guide, and more.

  • Firmware Upgradeable

    Keep the firmware up-to-date through the Sena Device Manager.

  • Certification

    Meets CPSC certification.

SPECIFICATIONS

  • GENERAL

    Weight: 390 g (M size)
    Operating Temperature: -10 °C – 55 °C (14 °F – 131 °F)
    Storage Temperature: 15 °C – 30 °C (59 °F – 86 °F)

  • HELMET

    Size: M / L
    Color: Matte White / Matte Gray
    In-mold polycarbonate helmet shell with EPS liner
    Nylon Chinstrap

  • BLUETOOTH

    Bluetooth 5.1
    Headset Profile (HSP)
    Hands-Free Profile (HFP)
    Advanced Audio Distribution Profile (A2DP)
    Audio Video Remote Control Profile (AVRCP)

  • INTERCOM

    Working Distance: up to 300 meters (0.2 miles) in open terrain
    Supports: up to 4 riders

  • AUDIO

    Noise Cancellation: Advanced Noise Control™
    Codec: Built-in SBC Codec

  • BATTERY

    Talk Time: 6 – 10 hours (varies based on LED use)
    Charging Time: 2.5 hours
    Charging Temperature: 0 °C – 40 °C (32 °F – 104 °F)
    Type: Lithium Polymer Battery

  • CERTIFICATES

    Electronics: CE UKCA, FCC, IC, KC
    Helmet: CE UKCA, EN 1078, CPSC 1203
    *Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older

  • WARRANTY

    Electronics: 2 years
    Helmet Integrity: 2 years

SUPPORT

Get answers to your questions, read product-specific FAQs, and watch videos that will help you master the functions and features of your Sena product.