Three different kinds of claims are floating around this story, and they don't carry equal weight.

Google's Aug. 12 post is confirmed information: an official record of what the company put its name on that day. If a reader is deciding what to buy right now, that list is the only part of this story solid enough to plan around.

The ad sighting itself is a reported observation. Reddit users flagged the device, and two outlets relayed those sightings. It's a real pattern worth taking seriously, but it rests on secondhand accounts rather than a Google statement or an archived ad file anyone can check directly.

The idea that this is a coming Fitbit Charge model is a theory, built on shape comparisons rather than a leaked spec sheet or a company roadmap. It's useful for understanding why the device looks the way it does, but it isn't a reason to delay buying an existing Fitbit or assume a specific product name is coming.

At least two separate users reported spotting the same unidentified device in different YouTube ad placements, according to Digital Trends. The outlet notes that repeated appearances across ads make an isolated rendering error less likely, while stressing that the device's existence and purpose remain unconfirmed.

One ad shows Pixel 11 phones next to a Pixel Watch 5. Another features several Google devices in matching green tones. The unidentified tracker appears in both, per Digital Trends.

It shows up alongside phones and watches rather than as a standalone graphic, which is part of why observers noticed it at all, according to Notebookcheck. The available reporting traces the sightings to Reddit users; neither source provides a confirmed product name or specifications.

The device does not appear to be Fitbit Air, Google's screenless tracker and its second wearable this year, since the images reportedly show a display where Fitbit Air has none, according to Notebookcheck.

It isn't a clean match for Pixel Watch 5 either. The screen is described as oblong, not round like Pixel Watch 5 and not square like the Fitbit Versa 4, and the images show no visible buttons on the body, per Notebookcheck.

Color adds a small, curious detail. The device appears in Olive and Fog, colors also used for Pixel 11 Pro and Pro XL accessories that Google introduced the same week in its accessories announcement. That's coordination inside the ad creative, not confirmation that Google meant to reveal a shipping product. Notebookcheck expects that other colors and designs could appear once, or if, the device is formally announced.

Digital Trends draws a similar comparison, noting the wearable resembles the small, pebble-shaped body of the Fitbit Air, though its screen makes a clean comparison difficult. The outlet adds that the overall shape reads closer to a Fitbit Charge tracker than a smartwatch, citing a report from 9to5Google, while stating plainly that no evidence yet confirms that identity.

The leading theory in the available coverage points to a follow-up to the Fitbit Charge 6, a tracker now nearly three years old, according to Notebookcheck. Whether this rumored device would actually launch as a "Fitbit Charge 7" or under some other name remains unclear, and Notebookcheck frames the idea as speculation rather than fact.

The comparison makes more sense once the current lineup is laid out. Google positions Pixel Watch 5 as a full smartwatch, with proactive Gemini Intelligence capabilities, personalized strength coaching, blood pressure and insulin resistance trend tracking, an industry-first breathing emergency detection feature, and what Google calls its most accurate GPS route tracking yet, according to Google's announcement. Fitbit Air sits at the other extreme, with no display at all.

Notebookcheck's theory is that the unidentified device could occupy the space between those two products, a fitness tracker with a display for people who want quick stats without a full smartwatch. Digital Trends frames it similarly, suggesting Google could be exploring a different form factor for fitness tracking that sits somewhere between a screenless tracker and a full watch. Neither outlet treats that as settled. It's an inference drawn from a visible shape and a gap in Google's current lineup, not a confirmed roadmap.

Fitbit's product line has leaned more on hardware variety since Google shifted its software efforts toward Google Health, according to Digital Trends. Existing Fitbit devices remain on sale, the outlet notes, which could leave room for Google to introduce another screen-equipped tracker if it chooses to.

A fair amount of this story simply hasn't been established. There's no official announcement, no product name, no pricing, and no launch date, and the available ads don't establish any of those details, according to Digital Trends.

A few other basics aren't visible in the reported ad images:

• Sensor set and health-tracking capabilities
• Battery life
• Software support, and whether it would run alongside Fitbit's existing app ecosystem

None of that can be read off a device shown only from the outside, and neither outlet claims otherwise.

For now, the mystery tracker remains exactly that, according to Digital Trends. A Google statement, an official teaser, or independently verified ad footage would offer stronger evidence than further guessing about what to call it, and until one of those shows up, this stays an open question rather than a pending release.