CH4 fart tracker review

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Wearables have made it possible for us to keep an eye on all sorts of metrics our bodies put out, be it distance travelled, steps taken, calories burned, heart rate or any number of other bits of data that can – at least in theory – help people exercise more and at a higher efficiency. However there’s still many other aspects of our bodies that don’t have any form of tracker. Fortunately then developer Rodrigo Narciso is looking to fix that, with his new CH4 fart tracker.


The CH4 is quite a simple, plastic case that sits on your waistband or attached to a beltloop and is designed to track when you let one loose. According to Narciso, the average user farts about 13 times a day in normal circumstances, but in instances where more than that takes place, there could be a dietary issue that needs diagnosing and that’s what the CH4 is designed to help pin down.

It does require some interaction to work correctly, with the companion application set up to receive inputs on what you’ve been eating. If you plug in each meal, including things like the type of vegetables you ate and how much dairy you took on, it can be compared with your fart frequency to learn whether there are certain types of food that cause the user to produce more gas, potentially indicating a slight intolerance to a certain food type.

The CH4 comes in a simple, plastic case, with little more than an on button and a clip for attaching to your clothes to break up its design. At this stage however it is mostly conceptual, so newer, better looking versions will no doubt be created if and when the campaign is a success.


Cost and availability

At the time of writing, the only way to get your hands on a CH4 tracker is to pledge for one on Kickstarter, which will set you back $120 (£77).


For a wearable that does little but track the frequency of farts, not even the content of the gases expelled, it’s quite an expensive piece of kit. The 3D printed versions produced so far look pretty basic too and the fact that the analysis app requires so much user interaction makes it difficult to imagine people making regular use of it.

Bottom Line

There’s a reason that the CH4 Kickstarter looks like it’s not going to make it to its funding goal, as this is a niche product with a high price tag and little automation. It’s not a wearable that’s going to catch on.