Garmin
Comparisons Garmin Descent G2
Garmin Descent G2 or Apple Watch Ultra 3: for diving
Garmin Descent G2 vs Apple Watch Ultra 3: up to 10 days and Android vs eSIM, L1 + L5 and EN13319. The Garmin is much cheaper.
Garmin Descent G2 or Instinct 3 AMOLED: diving or hiking
Garmin Descent G2 vs Instinct 3 AMOLED 50 mm: a 100 m dive computer vs 10 ATM and up to 24 days. The Instinct is much cheaper.