SO. MUCH. THIS.
Reminder that industrial handheld computers, despite being way more water and everything else resistant than an iPhone will ever be, and whose environmental resistance is absolutely critical to their function and not just a marketing bullet point, are also repairable and upgradable. They work for decades with periodic maintainance which is actually why heavy industry seems so “behind the times” on upgrading their equipment, they simply don’t have to because their existing gear is so resilient.
If what you seek is a repairable phone, check out the Fairphone 5. Got mine for a week now (transparent édition), incredible little machine. Not as waterproof as an IPhone, but way more repairable. And supported until at least 2028 (maybe 2031).