> How long does the battery last?

> Roughly 12 to 15 hours of recording. On average, I use it 10-20 times per day to record 3-6 second thoughts. That's up to 2 years of usage.

2 years is optimistic I think. 3-6 second thoughts is not much, most ideas I'm having past TODOs are >15 seconds. Plus this would definitely depend also on how regularly you sync to the app.

Bare in mind, these devices have not yet been used in the wild on people outside of the product creator. Maybe one of the use cases is to note down monologues, or to easily record conversations with clients for later review.

1 month battery life is also highly usable, but there at least should be a way to charge it.

Why can't they just sell the charger separately? If you lose it you buy a new one.

You could even make it a seperate item - buy one with/without the charger, then in 2 years you decide if you want the charger or an upgrade.

Seeing the index in action next to an oura I appreciate how much smaller/thinner the index is (or at least how much less it seems to “spread” my fingers apart with of a width of 6.5mm vs 8mm).

It’s effectively a regular ring with a button on it that’s smaller than a typical 1ct engagement ring. The oura by contrast (even the 4) is a chonker compared to “regular” wedding bands. I’ve tried in the past but personally a very thick ring is a non-starter for me. Might just be a personal sensitivity thing. Clearly the oura sells.

From a V1/MVP/founder lens I am sensitive to the value in shipping a product that just works rather than doubling the complexity with a bms, custom charger, wrap around flex pcb, and associated engineering effort to mitigate ignition hazards. Especially when there’s platform risk in seeing if this thing even gets used. There’s no platform risk on the watch side which has comes miles from my first pebble/Alerta that was one day charge and blackberry phone compatible only.

As for the ewaste argument? If the market demands a rechargeable product then that’s the right move. But from a weight perspective? This feels performative. Even pessimistically three-four 5g device that are 0% recyclable will generate less ewaste than a 200g phone with 55% recovery and a 5% recapture rate of obsolete devices thats turn over every 3.5 years. It’s like 10x less and probably in the ballpark of what a hypothetical “rechargeable” index would look like.