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Comment by haritha-j | Hacker News Reader

The index is a ludicrous product. The battery life, they claim, is 2 years. This is one heck of a misrepresentation. It is actually 12-15 hours. They get the 2 years because its meant to be used around 10-20 times a day, in *3-6 second* recordings.

The device is being marketed as external memory for your brain. I'm hardly a philosopher, but I don't have many useful thoughts that are 3-6 seconds in length. heck, when i try to voice record a thought, i'm uhming and erring for the at least 3 seconds.

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"The index is a ludicrous product"... for you, and most of the general public.

But there are 1,000s of us that heard about it, researched the limitations.. and still bought one immediately.

At $100 even if it only lasts a year it would still be worth it. For me.

Given their track record hitting the battery life projections for the P2D and PT2 (almost), I would give them the benefit of the doubt on the Index01.

Even if it was really 2 years, that really doesn’t sound great IMHO. I personally keep my devices a very long time, and given there is no reasons for such a simple device to become obsolete I wouldn’t want to replace it after only 2 years

That discrepancy isn't explainable given a change in daily use. 12hrs vs 2 years is a 1000x difference. You're saying they expected people to use it 1000x less than they actually are? That's them expecting people to use it for 1 min per day, and people actually are using it for 16 hours per day

Low power electronics are all about low duty cycles: if it can be worn but asleep and drawing next to no power for 15 hours and 59 minutes, and recording audio for 60 seconds, they only need enough battery to run the processor for 60 seconds.

No one is using the thing like a dedicated microphone to record their entire day's audio, it's a note-taking tool.

Yeah I know. I misunderstood the 12-15hr battery life comment. They're saying the battery lasts for 12-15hrs *of recording*. Very different statements.

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