martto. Life

Simultaneous ankle comparison of Fitbit Air and Charge 6! Despite the same walk, one shows intense high-load while the other shows a relaxed break—complete data contradiction!? A hands-on verification review investigating the cause. What is the mysterious playground swing trap?

I left my Fitbit Air completely uncharged to test its absolute battery limits! Here's my real 1-week battery drain log, the perfectly timed "Under 24 Hours Left" notification, and a comparison with the Charge 6.

When you wear a smartwatch on your ankle, is walking misrecognized as running!? We thoroughly explain the shocking fact that the app doesn't automatically learn even if you manually correct it repeatedly, along with precautions for ankle usage based on actual verification data!

Day 1 of the ankle-wearing verification! Wearing the Fitbit Air on my right ankle and Charge6 on my left resulted in completely split AI coach judgments: "Tough Running" vs. "Energy-Saving Walk." A hilarious look at the quirks of AI misrecognition!

One-week concurrent wrist test complete! A deep dive into Galaxy Watch 7, Charge 6, and Air data. Featuring the Air's sleep display glitch and my AI coach inventing the bizarre word "Kyohitsu" to praise my strict sleep schedule!

Concurrent testing with 3 smartwatches: Galaxy Watch 7, Fitbit Charge 6, and Air. Highlighting the Air's sleep score glitch and the AI coach's bizarre hallucination about a "recent move," while questioning Fitbit's current accuracy.

A head-to-head weekly data comparison of Fitbit Charge 6, Air, and Galaxy Watch 7! Beyond the numbers, I share my honest, unfiltered review on why gadget "excitement" matters way more than just being lightweight.

[Daily Update] Comparison of daily data from Fitbit Air & Charge 6 on the same right wrist, and Galaxy Watch 7. We report on the Air's sleep score calculation bug and differences in step sensitivity.

The Fitbit Air has absolutely no screen and no notifications.Online, I’ve seen some cold comments like, "What's the point of this device?" or "If you already have a smartwatch, why bother?"... But let me tell you, that's completely wrong!The Fitbit Air might just be a device that truly awakens when used as the "ultimate sidekick (sub-device)" for your main smartwatch—especially the Pixel Watch!

Now that the first-day data from my "Dual-wielding on the right wrist & migrating to iPhone 15" setup has been collected, I can't stop grinning while staring at my Excel sheet! This time, I’m going to do a hardcore comparison review on the "differences in sleep graphs between the two models," which yielded some incredibly fascinating results! ✨The app screens look different, and the screenshots don't line up perfectly, making it a bit tricky to view, but I've lined up their unique graphs in order below. 👇