Unless you go for a run, for example.
> Really the only missing part is NFC payments.
And custom applications, not the least of which are navigation tools like Google Maps or Citymapper.
You can bring your phone with you! Then you can combine its GPS tracks and the information from Pebble.
> And custom applications, not the least of which are navigation tools like Google Maps or Citymapper.
They won't work without the phone connection because Pebble does not have a cellular modem.
But there are mapping apps for the Pebble that use the phone's GPS: https://apps.repebble.com/maptastic_52e7521679f937c182000004 or https://apps.repebble.com/maps-nav_99279aadf6df4c0fadfdb39a
You can, but it's pretty awful. put it in a pocket and it flops around. Wear a band that slides in your phone in and get it soaked (i'm a sweat monster).
I own a pebble, but I'll gladly just run without a phone.
Actually, you gave me an idea!
There are button-sized Bluetooth GPS loggers. They can record a GPS track, and you can later download the data from them. Since it's freaking GPS, it automatically has timestamps, so it's easy to correlate with other activity.
As a bonus, I think it should be possible to connect them directly with the phone.
BRB, I think I have a ESP-based Tiny Arudino somewhere...
Beware that they take much longer to start since they don't know the GPS coords of the nearest cell tower, nor do they download the GPS almanac over the cell connection. They will however remember the almanac so you can leave it on for 30 minutes and not have to redownload it the next day.
Sad that most of ham radio, which has similar APRS for tracking, doesn't do async or multi-hop.
I have not tested it, but it should be hackable. I have a couple of discrete RAK chips, and I've ordered a PCB with a trace antenna for them.
Or the Mesh Node T114 Development Board V2 (23mm wide).