So I ended up getting the Vital Bracelet (Ghost Games Digivice Fitbit watch) It's been a fun way to train Digimon. Only down side is the cost of all the DiM Chips the Digimon come on. Each Chip holds a certain evolution tree. Most Vital Bracelets come with the Pulsemon line chip since he's the mascot Digimon of the VB since it did debut before Ghost Game came out. The Ghost Game Themed one is the one I got since it's a tad more inconspicuous on an adult, and thus I got the Gammamon chip instead. But the kicker is you can only store up to two Digimon at a time on the VB. But there is an mobile app that you can store them on. Problem there is you got to have the DiM chips handy if you've switched Digimon around. If the Digimon you send back to the VB isn't the one you previously had active on it before, the VB will need the appropriate DiM chip to reinstall it to the VB.
Battles between Digimon on the VB are pretty simplistic too and kind of limited. You can trigger a battle by waving an active NFT device near it. But Battles will always be limited to the evolution line of the Digimon that's fighting. And battles consist of trading attacks for 5 turns with one or the other hitting each turn. Most times it won't get to 5. I've only seen one battle with one of my Digimon losing due to just lower health than the other. Also each Digimon has a specific turn it shoots a critical attack. But it's far from a guaranteed hit. And typically if you've been exercising with it on prior to battle, you tend to have better stats and odds to win. That said it also can pit your Rookie vs a mega at times which has no chance. Thankfully holding down the confirm button as it shows who it's pairing you against let's you run away.
Digivolving past Rookie will be determined by the amount of battles, exercise vital points, mission trophies, and later battle win percentage. Baby through Rookie is until some of the new DiMs come, a straight shot. Baby to In Training takes an hour, 3 more to get to Rookie. Champion will come 16 hours later from Rookie and depending on your stats I mentioned above will determine what Champion you get. Most generally get the expected route the more exercise and missions you do. Doing nothing usually gives you a low end Digimon. after that the next two checks for digivolving will come a day later for Ultimate and Mega. And there can be some DNA digivolving. If you have a Digimon of the same level of a different type (Data, Virus, Vaccine, Null) in storage as your active one triggers it's next level, it can influence a different path instead sometimes without the necessary requirements. So far I've only done this to get Omnimon between MetalGarurumon and WarGreymon. But it only uses the active Digimon. The one in storage still is there in it's form. So my MetalGarurumon changed to Omnimon and I still have WarGreymon.
Missions consist of a random easy 1 Trophy mission daily, usually an amount of Steps, Battles fought, Battles, won, or Vital points earned of an easy to get. Hard Missions is Squats for 30 seconds, Situps for 30 seconds, Punching for 20 seconds, and dashing for 20 seconds. Doing all four per day nets you 6 trophies. Advance Missions comes from the app sent back with a Digimon. I've seen 4 so far. Win 6 battles in an hour, Fight 10 times in an hour, Get 350 Vital points in and hour, and get 3000 steps in an hour. each will net 3 trophies each. Considering some megas will require 20+ trophies it's good there's more than the daily's with the app.
Finally theres the adventure Mission. It locks the app into a step counter mode with a goal to reach. Once it hit's you fight a battle. Win and progress lose and replay the current level. There are always 15 levels. Clearing all 15 unlocks a special Mega evolution, usually not the main lines. Agumon, and Gabumons special mega unlocks are big bads from Adventure 2020.
But back to the DiMs. Most are running 16 to17 per set. Some have one others might be two which might run a tad higher. Angoramon and Jellymon from Ghost Game are about the cost of one single set, while I got Agumon and Gabumon for 30. And then there's exclusives. Veemons chip only comes with a specific VB release and the aftermarket on it makes you practically ought to buy the VB he comes with anyways. Wormmon was P-Bandai only with a DiM Chip holder box. So theres one I really want but the price is much to high now.
Also the new Vital Hero Bracelets are expanding past Digimon. Kamen Rider is already available as well as a P-Bandai Medabot set, but soon theres going to be Demon Slayer and My Hero Academia too.