Best multisports watch under €500?

Hey,

I’m looking to buy a new sports watch and would love some recommendations. My training consists of:

• Road running + trail running
• Strength training
• Hiking / rucking in the mountains

What I’d like the watch to do:

• Have a very accurate heart-rate sensor and solid training metrics for running/trail
• Let me program and follow strength workouts (timers/rest periods, sets, reps...) directly on the watch
• Mapping is optional, but definitely a nice-to-have for ruck days

Budget: €500 max

If you’ve used either of these, or if there are better options in this price range with a notably better HR sensor, I’d really appreciate your suggestions. Thanks!