The OOONO Co-Driver NO2 is a rechargeable in-car hazard alert device that uses reports from the OOONO community via its smartphone app.
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Quick recommendation
It is designed for drivers who want audible and visual alerts about reported hazards and carry a compatible smartphone. On 4 August 2026, the product was observed at number 5 on Amazon.de’s Electronics & Photo bestseller list. Amazon does not publish unit sales for this ranking. Ranking, availability and offers can change at any time.
Key features
- Audible and visual alerts through the device and app
- Apple CarPlay and Android Auto support according to the product page
- Rechargeable battery; the supplier states that a USB-C charging cable is included
- The app requires at least Android 12 with Google Play Store or iOS 16 with App Store
- No subscription or app fees according to the supplier
Strengths
- Compact device with its own LED display
- Rechargeable instead of requiring regular battery replacement
- Integration with CarPlay and Android Auto in supported vehicles
Limitations and buying advice
- Alert quality depends on current community reports and their density in the area.
- A smartphone, the app, Bluetooth and a compatible operating-system version are required.
- Traffic laws and local regulations always take precedence. Check whether use is legal in the relevant country before using the device.
- The device is no substitute for attention or defensive driving.
Who is it for?
The Co-Driver NO2 is intended for regular drivers with a compatible smartphone who want to use community alerts as an additional source of information.
Practical tips
- Complete the app setup and device pairing while parked before your first journey.
- Keep a USB-C cable in the vehicle and check the charge level regularly.
- Check the smartphone’s notification, Bluetooth and power-saving settings.
- Position the device so that its display and controls do not distract you from the road.
Conclusion
The OOONO Co-Driver NO2 combines a compact, rechargeable device with community-based alerts and smartphone integration. Its usefulness depends on app compatibility, the density of local reports and responsible, lawful use.
* Affiliate link. Editorial information last checked on 4 August 2026. Please verify the product variant, compatibility and package contents on Amazon before buying.