lol... every triathlete is "pretty competitive" ;). My wife and I switch to running and are using garmin vivoactives. The battery life is amazing and works great swimming (no gps)
My non-active friends mostly ditch their fitbit style devices after a few months. Its either an apple watch, microsoft band (not joking) or some type of running/multisport watch.
The Microsoft Band 2 is actually extremely nice. It isn't tied down by being forced to run Android Wear or Apple Watch OS or Samsung Gear, and instead runs "Microsoft Wearables" which is closer in design and lightness to the kind of realtime OS design you see in Pebbles.
It has decent battery life (48h claimed, meets the requirement of >24h real world, but not >7 days real world), it is physically small and light, but is also a typical smartwatch.
It has the right blend of both being an activity tracker and a smartwatch, but the only reason I won't buy one is it is insufficiently water proof. The only devices that will survive true day to day wear are currently being made by Garmin. Nothing that Fitbit or Jawbone makes is beyond IPX7, and all of Garmin's stuff (coming from the professional competition device pedigree that they do) has actual water rating marks (at least 50 meters, some models exceed that).
So yeah, I've been recommending Garmin gizmos lately. Vivofit 3, $99 without heart rate tracking, battery life of a year with a standard coin battery, or Vivosmart HR, $149, battery life of 5 days, has heart rate tracking, both support Garmin Connect, thus every major app and ecosystem.
I think the only uncompetitive triathlete is someone who goes for a ride, takes a tumble into a wet ditch, and has to walk their bike back onto the road.
Every single triathlete I’ve met has been fixated on gear, performance, and age-group rankings.
Fitbits been aiming for the fitness watch market, recognizing that's where a lot of people will go, for some time. Sure they still have simple trackers like the Flex, but the multifunction watches (Surge and now Blaze) have been around for a while.
My non-active friends mostly ditch their fitbit style devices after a few months. Its either an apple watch, microsoft band (not joking) or some type of running/multisport watch.