If you sort this category by the battery integer on the box, you will rank a disposable ring, a card in a quiet mode, and a week-long clip as neighbours. They are not. The schema here carries a dedicated batteryNote because a figure stripped of its condition is worse than a blank.

Pebble’s Index 01 quotes 12–15 hours of recording. Those hours are the ring’s entire service life. Silver-oxide cells, sealed, no charger. At Pebble’s own tester average of about a minute a day, the marketing gets to years; at a meeting cadence the ring is a cartridge (Pebble). Shipping is still the March-then-later window as of this filing, but the number is already on the store, which is why it needs the sentence attached before anyone puts it next to Plaud.

Modes and slogans

The Plaud Note Pro advertises 50 hours. Plaud’s EU page is unambiguous: 50 hours is Endurance, pickup 3 m; Enhance at 5 m is 30 hours (Plaud EU). Both measurements are real. The 50 is the one that will be screenshotted.

Bee’s 160+ hours is at least the right kind of number: a recharge cycle on continuous capture (Bee Pioneer). Whether a week holds with the green LED Amazon now documents is a separate check. Sandbar still has not offered a kind. “All-day battery life, rechargeable” is not hours (Sandbar).

Vocci’s eight hours is a cycle, on a ring, with a case that adds charges (Vocci tech). That is comparable to Omi’s 10–14 and not comparable to Pebble’s 12–15, even though the integers rhyme.

What the table is for

Methodology scores recharge friction. A device you throw away after 13 hours of use is high friction dressed as “never charge.” A device you plug in every Sunday is low friction. A device whose headline hours require turning the microphones down is a footnote that ate the spec.

Index 01 — specifications. A figure the manufacturer does not publish is printed as Not published, not guessed.
Cost
Price$75
PlanNone required
Capture
Microphones1
Capture modePress to record
Audio outNone
Battery (active capture)13 h — Not a charge cycle. Pebble quotes 12–15 hours of recording across the ring's entire life, after which the sealed battery is spent and the ring is replaced.
On-device storage0.083 h of audio
Speech recognitionOn-device
Language modelOn-device
Body
Form factorRing
Weight4.7 g
MaterialsStainless steel
Charging caseNot published
Recording indicatorNo
ConnectivityBluetooth
Companion appiOS, Android, Web
Data exportYes

Articles on this site are not allowed to type a live battery figure into prose and walk away. The device page carries the number and the caveat; <SpecTable /> pulls both. If Pebble’s hours move, or Plaud stops selling Endurance, the table changes and this paragraph does not become a fossilised lie. The fossil is the idea that “hours” meant one thing.