Screenshot from webpage FAQ section:

Is a paid subscription required?

No.

What kind of battery is inside?

Index 01 uses silver-oxide batteries.

Why can’t it be recharged?

We considered this but decided not to for several reasons:

1. You’d probably lose the charger before the battery runs out!
2. Adding charge circuitry and including a charger would make the product larger and more expensive.
3. You send it back to us to recycle.

Wait, it’s single use?

Yes. We know this sounds a bit odd, but in this particular circumstance we believe it’s the best solution to the given set of constraints. Other smart rings like Oura cost $250+ and need to be charged every few days. We didn’t want to build a device like that. Before the battery runs out, the Pebble app notifies and asks if you’d like to order another ring.
Screenshot from webpage FAQ section: Is a paid subscription required? No. What kind of battery is inside? Index 01 uses silver-oxide batteries. Why can’t it be recharged? We considered this but decided not to for several reasons: 1. You’d probably lose the charger before the battery runs out! 2. Adding charge circuitry and including a charger would make the product larger and more expensive. 3. You send it back to us to recycle. Wait, it’s single use? Yes. We know this sounds a bit odd, but in this particular circumstance we believe it’s the best solution to the given set of constraints. Other smart rings like Oura cost $250+ and need to be charged every few days. We didn’t want to build a device like that. Before the battery runs out, the Pebble app notifies and asks if you’d like to order another ring.
Screenshot from webpage FAQ section:

Is a paid subscription required?

No.

What kind of battery is inside?

Index 01 uses silver-oxide batteries.

Why can’t it be recharged?

We considered this but decided not to for several reasons:

1. You’d probably lose the charger before the battery runs out!
2. Adding charge circuitry and including a charger would make the product larger and more expensive.
3. You send it back to us to recycle.

Wait, it’s single use?

Yes. We know this sounds a bit odd, but in this particular circumstance we believe it’s the best solution to the given set of constraints. Other smart rings like Oura cost $250+ and need to be charged every few days. We didn’t want to build a device like that. Before the battery runs out, the Pebble app notifies and asks if you’d like to order another ring.
Screenshot from webpage FAQ section: Is a paid subscription required? No. What kind of battery is inside? Index 01 uses silver-oxide batteries. Why can’t it be recharged? We considered this but decided not to for several reasons: 1. You’d probably lose the charger before the battery runs out! 2. Adding charge circuitry and including a charger would make the product larger and more expensive. 3. You send it back to us to recycle. Wait, it’s single use? Yes. We know this sounds a bit odd, but in this particular circumstance we believe it’s the best solution to the given set of constraints. Other smart rings like Oura cost $250+ and need to be charged every few days. We didn’t want to build a device like that. Before the battery runs out, the Pebble app notifies and asks if you’d like to order another ring.
Domenico De Treias and 1 other boosted