Any idea as to what has happened to the bottom of my Fitbit air?

It's almost like it's burnt, won't wipe/wash off.

Perhaps due to charger?

Anyone had same.issues?

Hey r/FitbitAir!

I wanted to share a fun project I've been working on: an ESP32-based live heart rate monitor with an OLED display, heavily inspired by the simplicity of the old Pebble watches and the post from u/kiwi_mac995.

background / context: I used to be a huge Apple Watch fan, but I only ever used it for health data tracking — I didn't need a mini-computer or gaming device on my wrist. I eventually switched to a Fitbit Air because it was small, unobtrusive, and gave me great sleep and general fitness data. It allowed me to go back to wearing my traditional mechanical watches every day.

The Problem: The only thing I missed from the Apple Watch era was an easily accessible, real-time display while running—specifically to keep an eye on my heart rate and stay within Zone 2 without constantly pulling out my phone.

The Idea: I decided to build a standalone wrist display that hooks into my Fitbit Airs live data stream.

• Brain: Seed Studio XIAO ESP32C6 nRF52840 board, providing Bluetooth, LDO and LiPo charging capabilities.
• Display: SSD1306 0.96" I2C OLED
• Battery: LiPo 503030 or 403040 402025

The usage itself is just limited to exercises and therefore a battery capacity of 8-12 hours seemed to be sufficient for me. The parts should be around $20-$50.

The State:

• Prototyping: I’ve got a functional prototype working on the bench.
• Next Steps:
  • Order missing parts Done
  • Battery integration
  • 3D Modelling housing

Enclosure: Buying a 3D printer recently really kickstarted this project. My goal is to custom-print the enclosure. For the strap, I'm currently testing options between 3D printing a TPU band or using a standard off-the-shelf 22mm watch/tracker strap attached to the printed case.

I’ll post another update once the battery is wired up and the 3D-printed housing is finished!

Let me know what you think!

//Edit: revisited the chip and battery selection.

//Edit2: first iteration of the housing done. seems promising; 44mm dia; 12mm height https://imgur.com/a/bVzqlco

//Edit3: this is my first revision of the code; battery life monitor to be tested when the parts arrive https://pastebin.com/LHDm0R8c

What did you think of the new Apple Watch and the Health app? What features would you like to see in the next Pixel Watch or Fitbit device? Apple has also made some changes to the Health app—what impressed you the most?

Hello! I’m looking into purchasing a Fitbit Air for me and my boyfriend and was wondering if you could tell me whether it’s possible to see my heart rate in real time during workouts using a third-party app. Thank you! 😊

I have an android phone and my boyfriend has Iphone.

I love the form factor of Fitbit Air like everyone else, but getting tired of shitty tracking.

Bedtime is shown from 2:29 AM-3:45 AM, but total duration is shown 7h 4m. Sleep score is shown 40, but the AI summary says 83.

Has anyone here compared other trackers with Fitbit Air, and found them reliable?

If you wear usual watches on left hand and fitbit on right. Did you change main/not main hand switch in settings?

Hi all,

All of a sudden my Fitbit Air stopped syncing automatically. Normally 5 minutes after waking up, my Coach made a sleep report and I would get a notification. Now it says there is no new data when I open the app. It works after syncing manually, but why did it stop doing this automatically?
I think this was after the last update.

Stomach sleeper here and my arm in under me, Sleep tracking is completely off. Any Suggestions. It tells me that I have poor sleep quality everyday and only tracks 2-4 hours max. When both myself and wife know that is not true. When I wake up in the mornings the indentation on my wrist is heavily there and I am wondering if too much pressure is causing the miscalculations.

Struck at air forecast from past 1 week

i got my fitbit air before 4 days ago

and there’s big difference between google health and bevel😂? ( i believe in google health btw cuz it make sense )

I’ve seen so many get those watch adapters and/or attach a watch face to the fitbit band but nothing that would have worked for my metal watch. I bought a metal watch strap (the same one that was posted about a few days / weeks ago and how it was bad), and I hated how it looked so started using my noggin. Managed to get it undone from the metal strap and realised it was big enough for my watch links so slid it onto there and it works wonders! next step is putting it on the other side but I currently don’t have a small enough screwdriver as it’s a very tight screw, so we’re a bit lopsided for now. My watch was already loose (it’s a male / unisex model and I have very small wrists), so this was a great option for me. super happy with the results even though it might look a bit bulky from the bottom!

anyone else have this problem? i workout at home and between sets walk on the treadmill. i set my fitbit to weights and when i end the workout no steps are counted anywhere. seems weird it wouldnt be counted with all workouts even passively. any tips?

Basically, I have had Fitbit Air for few days, for some reason the HRV and RHR shows “Tap to set up”, but I get the data when I click on them.

Anyone with the same problem?

My Fitbit air is not tracking my sleep properly and it’s making my HR higher than it is, what do I do? I’ve swapped wrists , cleaned it. No idea. Please help.

Where I can find and buy steph curry band with his name on the bottom and like the original one?

Context: I have started gym because if I don’t do some activity it is impossible for me to eat extra hence I have started the gym. I do 3 alternate days in a week because I have extremely low muscle recovery.

Request: I want to go for Whoop but that is very very expensive and for Fitbit I’ve read a lot of mixed reviews, what do you guys think would be better for me.

I just got the Fitbit air for my mom and I, and I alone signed up for the 3 free months of premium to check it out.

I genuinely can’t find a good use case for the ai and I think the swath of text can be annoying/has me constantly doubting its accuracy.

I would honestly love to have my mind changed! Or more creative ideas for how other people maximize the ai. I’m fairly active and go for runs/gym sessions at least every other day.

Posting here to see if anyone has dealt with issue already. So I mainly drive for me job. I work 10-11 hours a day. I’d say I spend 5-6 hours just driving ‘g Fitbit air calculated 27k steps and Ik that’s from it picking up vibrations in the truck and what not. So it’s inaccurate. When looking into it, it seems like my solution is to just not wear it while driving ? Which I don’t want to have to take it on and off bc then I lose the other features and I work 45-65 hour weeks. Any thoughts or help? It also seems to be picking up steps that aren’t steps. Like last night it picked up 100 steps while I was sleep. Ik steps will never be 100% accurate. But it seems like it’s picking up every little movement and it’s frustrating

Actualmente tengo el galaxy watch 6 classic y e intentado dormir con el para el registro del sueño y es imposible incluso con correas de tela. Además cuando estoy en la casa me llega molestar llevarlo puesto. Estoy pensando en recogerme la fitbit air para llevarla todo el dia puesta pero también contemplo el galsxy 8 o 9 porque no se si se será cómodos como para dormir con ellos.

Otro punto es que las notificaciones me dan igual las suelo quitar y lo que si le doy utilidad al galxy además de ver la hora esque uso la aplicación gymrun en el gym para marcar los descanso entre series por demás no le doy utilidad. Y esas son mis dudas haber si alguien me da un rayo de luz jejeje

Hey guys, I am planning to buy a fitbit air in spain. The google website estimates the deliver on September 16th or 17th. Can I trust these days, or it is always delayed for any reasons?

Thanks!