# comma.ai comma device

24 Hacker News commenters recommended comma.ai comma device and 4 criticized it, November 2025 to November 2026. It was recommended in 11 of 13 months. It meets the Hacker Approved badge rule.

**Verdict:** Adds freeway driver assistance to compatible cars on a low-cost Android-based device; people praise its capability. Common caveat: frequent warning beeps.

## Why people recommend it

- Capable system on cheap hardware (2 comments): "you can get a lot of autonomy and intelligence with a $1000 Android device and thirty minutes for installation" ([source](https://news.ycombinator.com/item?id=49635246)) "Comma does a surprisingly good job with very minimal hardware" ([source](https://news.ycombinator.com/item?id=47124644))
- Makes long drives easier (3 comments): "Really incredible piece of tech in a tiny package, and it truly improves your life to have it." ([source](https://news.ycombinator.com/item?id=46740338)) "That thing makes driving long distances so much more stomachable." ([source](https://news.ycombinator.com/item?id=45814633)) "makes driving so much easier" ([source](https://news.ycombinator.com/item?id=48976374))
- Seen as better than rival systems (3 comments): "tiny companies like Comma AI manage to build self driving systems that are in someways better than Teslas" ([source](https://news.ycombinator.com/item?id=49803773)) "isn't self-driving, just really good cruise control (better than Blue cruise, imo)" ([source](https://news.ycombinator.com/item?id=46092936)) "it also supports a comma.ai, which is better in a practical sense than FSD" ([source](https://news.ycombinator.com/item?id=48066336))
- Long-time satisfied users (2 comments): "very happy comma.ai user for many years now" ([source](https://news.ycombinator.com/item?id=46741140)) "many Rivian customers really love Comma.ai" ([source](https://news.ycombinator.com/item?id=46235468))

## What people warn about

- Frequent beeping and warnings (2 comments): "comma.ai will not disable the warning. This is a warning that's on all the time." ([source](https://news.ycombinator.com/item?id=48824635)) "when I have sunglasses on it beeps too much" ([source](https://news.ycombinator.com/item?id=48834931))
- Seen as niche or dead end (2 comments): "George Hotz has done some interesting work, but Comma is far too indie/hacker." ([source](https://news.ycombinator.com/item?id=46237708)) "It's a dead end unless they work a deal with someone to be allowed on the bus." ([source](https://news.ycombinator.com/item?id=46238886))

## Alternatives hackers recommend

- [Tesla Full Self-Driving (FSD)](https://hackerapproved.com/p/tesla-full-self-driving.md): 268 recommend
- [Tesla FSD](https://hackerapproved.com/p/tesla-fsd.md): 73 recommend
- [comma.ai openpilot](https://hackerapproved.com/p/openpilot.md): 34 recommend
- [Tesla Autopilot](https://hackerapproved.com/p/tesla-autopilot.md): 27 recommend
- [Comma Four](https://hackerapproved.com/p/comma-four.md): 12 recommend

## Where to get it

- [Visit the official site](https://comma.ai/)

## Cite as

Hacker Approved, "comma.ai comma device", https://hackerapproved.com/p/comma-ai/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).