COMMA THREE
make driving chill

comma three

from $1999
or $181/mo with Affirm. Prequalify now
32GB
$1999
Add to cart
  • Storage Size
    The more storage you have, the more driving video you can store on your comma three. 32GB is ~1 hour of footage, 250GB is ~12.5 hours of footage, and 1TB will store ~50 hours.
  • Try our 30-day money-back trial
    See for yourself why Consumer Reports rated us as the top ADAS system. We think you’ll love it, but if you’re not satisfied, send it back for a full refund with free return shipping.
  • Have it in 2 days
    Free expedited 2-day shipping in the US only; we ship with UPS and signature confirmation. International shipping is a $30 flat rate with all customs and duties calculated and paid at check out.
  • 1-year hardware warranty
    1-year limited warranty against hardware defects.

Meet the comma three

The comma three is custom hardware designed to live in your car, and purpose built to run openpilot. The comma three has three beautiful HDR cameras, two cameras to watch the road and one night-vision camera to see inside the car.

Besides cameras, the comma three has a suite of connectivity and sensors including cellular LTE, Wi-Fi, an IMU, high-precision GPS, and microphones.

COMMA THREE
make driving chill

In the Box

comma three devkit

1.5 ft right-angle OBD-C cable

2 mounts (with adhesive and alcohol wipes)

On-device Storage

The more storage you have, the more driving video you can store on your comma three.
Storage
32GB
built in storage
~1 hour of footage
$1999
250GB
Samsung 980 NVMe SSD
~12.5 hours of footage
$2199
1TB
Samsung 980 NVMe SSD
~50 hours of footage
"CROSSCOUNTRY Edition"
$2499
Want your video footage saved for longer? – Sign up for comma prime for 1 year of cloud video storage.

comma three includes one free month of comma prime (must be activated within 30 days of purchase). To claim your free prime, log into comma connect. Once paired, you can see your recorded drives, set navigation destinations, and more.

Tech Specs

Cameras
Three 1080p cameras w/ 120 dB of dynamic range: dual-cam 360° vision and a narrow cam to see far-away objects
Processor
Qualcomm Snapdragon 845
Storage options
- 32GB built in storage
- Samsung 980 NVMe SSD (250GB or 1TB)
Connectivity
- LTE
- Wi-Fi
- High-Precision GPS
Night-Vision
IR LEDs for interior night-vision monitoring
Display
2160x1080 Beautiful OLED display
Ports
- OBD-C port (USB-C w/ CAN)
- USB 3.1 Gen 2 port (DisplayPort capability)
comma three
Installation Guide
7 steps
30 min
car harness
comma three is compatible with 200+ cars
A supported vehicle is one that just works when you install a comma device. All supported cars provide a better experience than any stock system.
Software
Works with openpilot
comma three devkit ships without a software installed, so you need to install software. It is compatible with openpilot and works with a wide variety of community supported forks.
Try our 30-day money-back trial and see why 92% of buyers keep their comma three and why Consumer Reports rated us as the top ADAS system.

Fine Print

30-Day Return
If for any reason you are dissatisfied with anything purchased at the comma.ai shop, ship it back within 30 days for a full refund.

Shipping
Free 2-day shipping via UPS (US only); signature confirmation required. International shipping is a $30 flat rate with all customs and duties calculated and paid at check out.

Warranty
1-year limited warranty against hardware defects. Open and repair the comma three at your own risk. comma is not responsible for damages that may occur while repairing devices.

If you intend to upstream support for a new car model, we will extend your return window. Email support@comma.ai after purchase to request more time.

Software
The comma three devkit does not ship with software capable of controlling a car. Open source software can be installed separately.

Windshield installation
Before using the device on your windshield, check the state and local laws and ordinances where you drive. Some state laws prohibit or restrict the placement of objects on the windshield of a motor vehicle. IT IS THE USER'S RESPONSIBILITY TO MOUNT THE DEVICE IN COMPLIANCE WITH ALL APPLICABLE LAWS AND ORDINANCES. Always mount your device in a location that does not obstruct the driver's view of the road. comma does not assume any responsibility for any fines, penalties, or damages that may be incurred as a result of any state or local law or ordinance relating to the use of your comma device.

comma three FAQ

I ordered a comma device! Now what?

Congratulations! Get started by watching the Installation Guide on our setup page. We find on average the installation process takes 15-30 minutes.

If you encounter an issue, we recommend you join our Discord community where hundreds of active users are available to help troubleshoot.

For updates on shipping dates, join the comma-shipping channel on Discord. Orders are fulfilled on Monday and Thursday. You can cancel your order for a full refund up until it ships by emailing support@comma.ai.

Does installing a comma device require permanent modifications to the car?

Installing a comma device does not require any permanent modifications to your car. With the car harness, most car trims remain in place.

How do I mount my comma device?

Watch our Mounting Guide. First, figure out where on the windshield you would like to mount the device. We recommend it be centered on the windshield below the trim. Be sure to leave enough room to remove the trim in the future. Clean the windshield before mounting with the included alcohol wipe. Remove adhesive and hold mount in place with light pressure for 10 seconds. Remove the comma device and press firmly on the mount. Let the adhesive cure for 48 hours.

Before placing the device on your windshield, check the state and local laws and ordinances where you drive. Some state laws prohibit or restrict the placement of objects on the windshield of a motor vehicle. IT IS THE USER'S RESPONSIBILITY TO MOUNT THE DEVICE IN COMPLIANCE WITH ALL APPLICABLE LAWS AND ORDINANCES. Always mount your device in a location that does not obstruct the driver's view of the road. comma does not assume any responsibility for any fines, penalties, or damages that may be incurred as a result of any state or local law or ordinance relating to the use of your comma device.

Note: In California, a system with driver monitoring can be mounted on the top center of windshield.

Will installing a comma device void my warranty?

From the FTC website: "Simply using an aftermarket or recycled part does not void your warranty. The Magnuson-Moss Warranty Act makes it illegal for companies to void your warranty or deny coverage under the warranty simply because you used an aftermarket or recycled part."

https://www.consumer.ftc.gov/articles/0138-auto-warranties-routine-maintenance

Will my insurance cover my car with a comma device installed?

Contact your insurance provider directly; insurance coverage is between the user and their insurance provider. comma hardware users have been able to get coverage and discuss this on reddit here.

Insurance companies are beginning to understand the safety benefits of ADAS and LKAS systems like openpilot and we have not heard of any providers rejecting coverage to comma hardware users.

How long will my device have software support?

Although there's no official support for any software, it is comma's policy to continue providing software updates to hardware for 1 year after it is the latest generation sold.

Money-back trial FAQ

What is the 30-day money-back trial?

If you are a comma three purchaser, you will have up to 30 days from your installation date to try comma three devkit. If you don’t love the way comma three transforms your driving, you can return it for a full refund. No questions asked.

Do I have to pay for my comma three first before I try it?

Yes. If you pay by credit card, you will pay the full cost of the comma three at the time of purchase. If you decide to return your comma three, the cost of the unit, as well as shipping will be refunded.

If you finance comma three through Affirm and wish to return within 30 days, Affirm will refund your installments, minus any applicable interest fees, after your comma three is picked up and the return is processed.

Does the 30-day money-back trial start based on the order date, installation date or first drive?

The 30-day money-back trial starts the day your comma three is delivered. (Signature confirmation required for delivery.)

How do I return my comma three?

To return your comma three, please fill out this form and a return label (or return instructions if not in the US) will be automatically sent to you.

Are all delivery areas eligible for a 30-day money-back trial?

Yes.