Activity sharing not working at all

This exactly my symptoms and the actions I took Trying to resolve it. If you don't see their data, they need to unpair and repair. Worked for me. I guess it's either that or wait for the next patch.

I have FULLY unpaired and re-paired two Apple Watches (both series 2)... Activity Sharing STILL doesn't work. It allows me to send a Share Activity "invitation" but when the other person accepts it's just an endless spinning wheel. Have tried hard restarts on new associated iPhones and restarting watches as well. Any other suggestions?

I saw this with a friend as well. He was able to force quit Activity app and then restarted the app. The invite was accepted at that point.

The problem isn't on your side but theirs. THey are the ones that need to un-pair and re-pair.

I have been experiencing the same issue, not only with my Apple Watch Series 1, but with the Series 2 that arrived yesterday. I have restored my iPhone with a fresh iOS 10 in DFU. The watch was cleared and I have setup both and brand new with no restore from backup. I am interested in others experience but I did note, I use an apple ID that was once a .mac was then a .me and now a .icloud...... When I sign in to a device I usually use .me as I have had the habit the longest, but when I review any settings that use my apple ID it represents itself as .mac, so I tried (after another restore) to setup all my devices with .mac at login rather than .me, it did not fix the issue, but curiously when people would invite me using .icloud or .me or even my phone number I would get the invite, accept and then get a spinning cog, but if anyone invited me using .mac they would get an error saying the person needs to have an apple watch to share activity. I am getting the feeling this may at times be an issue with the apple ID? Does anyone else use legacy .mac or .me who are having this issue?

Just noticed that each time you re-pair your watch to your phone (and restore from a backup) Apple Health lists it as a new watch.

Consequently I now have the same watch listed about 5 times in the health app.

Is this a bug? It's only happened since iOS 10.

Wow. I think I may have a breakthrough here...

• Un-Pairing and Re-Pairing the Watch seems to be working for some people, so try that first! Instructions here on how to do that: Unpair your Apple Watch and iPhone - Apple Support
• If that doesn't work, go to Settings > iCloud, take note of the address (under your name)that your Apple ID is associated with, if ends in @me.com or @mac.com, you need to change it so it ends in @icloud.com. In order to do this scroll down to the bottom of this page and select "Sign Out". After this process completes (which may take a few minutes) you can sign back into iCloud on your phone with your @icloud address which will be exactly the same as your old address, except the end is changed to "@icloud". For more info on that confusing craziness, look here: iCloud: About your @icloud.com, @me.com, and @mac.com email addresses - Apple Support

GOOD LUCK! Let me know if this works for you. 😎

Apple are aware of the problem. I had a 60 call with Apple yesterday.

They downloaded logs from my watch and will be in touch next week.

They are watching this thread.

I have tried pairing/unpairing at least 6 times. Cannot get it to work. When I invite someone, I just get the spinning indicator and nothing happens. Frustrating.

I have same problem as everyone. I have been on the phone over several days with the same Sr Advisor at Apple and he is great! He really is trying to fix the issue and is sending all the info back to the engineers. Today we figured out it is one of my apple ID's causing the problem. I use one to buy stuff and one on my phone. We deleted the one on my phone and put in the other; then we asked my daughter to share and it worked ! We put my old ID back on phone( so I would have everything the same as it always was) and he is telling engineers the latest info. So still not fixed, but much closer now that we know it is not the watch or the phone. I will report back when I get it all straightened out.

My Apple ID was an old email that I don't even have access to anymore, so I changed it, and the activity sharing works now! I'm thinking this is an Apple ID/iCloud issue

Well, when I look at Settings>iCloud my email address is neither @me.com or @icloud.com (it's a company email). But when I look at my Apple Watch in the >Devices column, it still shows up as watchOS 2.2.1 - I think that's the main culprit here. On my Settings>General>About of my Watch, it does show watchOS 3.0.

Don't know how to get the iPhone iOS 10 to figure out that my Watch was updated to 3.0....

Any ideas?

PS: Also did unpair/pair watch (long process), and nothing changed.

Also on iCloud.com, my Watch is being identified as running OS 2.2.1.... Bizarre!