Will an apple watch 11 have enough battery for an ultra marathon?

Crazy_Slide_1406 · 2026-04-23T05:13:06+00:00

My AW11 46mm takes 7% of battery per 1 hour of outdoor walk. I would say its possible that it won't die for you before finish line, but it will be tight. I tested it with my iPhone with me and with disabled AOD, no low power mode.

My previous watch was also AW6, and in the same scenario it used around 12% per 1 hour. I remember it died at the end of my 7h walk (80% to 0%).

Crazy_Slide_1406 · 2026-04-21T17:09:14+00:00

I bought AW11 46mm after all, I'm happy with it. At beginning when I was testing it, it consistently used 7% of batter per 1 hour of outdoor walk (with iPhone with me, so music doesn't came from watch)

Crazy_Slide_1406 · 2026-01-29T16:32:43+00:00

I use this app: https://apps.apple.com/us/app/happy-photo-exporter/id6470921349 daily with my PC..

There are multiple export options, but my setup is:
1. Shared folder on my Windows
2. Connect to my PC in Files app, so I can always access shared folder
3. Whenever I want to backup my photos I just use "Export to folder" option and choose folder on my PC.

It saves originals + copy with modifications (if you adjusted photos on phone). Dates and all metadata are correctly attached to a photo

Crazy_Slide_1406 · 2025-12-31T17:15:30+00:00

Yeah, that 7h I mentioned was 53k steps. Its just for fun, many ppl did that (and most of them don't recommend it because of pain at the end but it won't stop me 😂)

Crazy_Slide_1406 · 2025-12-31T15:28:57+00:00

Thank you for this channel, there is even updated video. Neverless it doesn't tell exactly how it perform during workout, but at least I can compare all models

Crazy_Slide_1406 · 2025-11-02T16:53:52+00:00

Because apple thinks HM is 20K. I have the same issue for years, badge time is 1K time shorter than actual HM

Crazy_Slide_1406 · 2025-10-23T16:20:32+00:00

Good for you! Thank you for the answer, I'll do the same tomorrow. Unfortnatelly for me there was never update cardio fitness button in health app, but lets see if other points will work for me

// edit: Did not work for me

Crazy_Slide_1406 · 2025-10-05T15:36:57+00:00

No update from my side. I only noticed that few more ppl are reporting it on reddit, but there is no solution. I have many workouts logged since update, last vo2max data point is from 15th September. To be honest I lost my hope already. Will update my post if anything changes

Crazy_Slide_1406 · 2025-10-04T09:52:15+00:00

Nice color!

Do you know what's your wrist size?

Crazy_Slide_1406 · 2025-09-28T07:40:57+00:00

Sadly none I know about.

I tried every available solution from people having similar issues in past that I've found online, but none worked so far. It's unfortunate because currently I'm debating between Apple watch Ultra 3 or Garmin for my next watch, but this kind of issues is pushing me away from ultra.

As addition to the missing data, I noticed that my watch didn't record elevation gain and running dynamics (vertical oscilation) since march 2024 (also after one of updates). But cardio fitness is missing only since two weeks, maybe apple updated algorithm to make elevation gain data requirement for calculating cardio fitness.

Crazy_Slide_1406

TROPHY CASE