The best upgrade to unlock is the 'great buddy' upgrade, which always returns one pokeball.
40+ Pokemon Go Buddy Full Hearts Background. Walk 2km with your buddy on the map screen (heart limit per day: Pokémon is a series not only about collecting and battling bizarre creatures, but also about a bond you level up a buddy by getting hearts:
New Feature Added To Pokemon Go Buddy Adventure Pokemon Go Wiki Gamepress from lh6.googleusercontent.com
Pokémon go has received plenty of new content over the years, but the buddy adventure update remains one of the best. Spend time with your buddy pokémon with special bonuses, like decreased walking distance for earning buddy candy and hearts with your buddy. With the upgraded buddy profile page, you'll see your buddy's progress toward.
And the best way to level up your pokemon go buddy level is by earning hearts, which can be achieved by completing daily tasks with your buddy.
Battling with your buddy is another way you can gain hearts and turn that good buddy into a best buddy! Buddy pokémon is a game mechanic that allows trainer to choose a one pokémon from their collection that after walking certain distances will reward trainer with specific candy. The new buddy system is live! The new pokemon go buddy system lets you select a single pokemon to be your buddy.