https://apple.slashdot.org/story/17/09/13/1516242/the-iphone-is-guaranteed-to-last-only-one-year-apple-argues-in-court

One year?! Firms may guarantee products for as long as they like, but in every first world jurisdiction I know there's a reasonable common law expectation of longevity and durability. The length of a contract seems a minimum expectation. Sometimes this is laid down in specific law for the avoidance of doubt. Not sure of the law in Canada, but NZ's Consumer Guarantees Act would make this stance by Apple a waste of time, providing consumer guarantees that cannot be contracted out of including reasonable durability. If retailers/distributors adopt an unreasonable stance toward durability, the no-lawyer Disputes Tribunal is good at helping them understand their obligations. The CGA only applies to consumers, not businesses that are perceived as having access to normal legal remedies, but there's also a Fair Trading Act that applies to all commerce and disallows unfair contract terms- such as insistence that reasonable durability ends with the formal warranty.

Seems to me that phones will go the same way as Windows OS: there was a time when consumers camped outside stores to get an early copy of Windows 95, but these days there's reluctance to update OS with some businesses determinedly stopped at XP until forced out of it. IMHO device hardware will go the same way, e.g. differences between the S7 Edge and S8 probably aren't enough for many punters to shell out again after 2 years. So phone longevity can be expected to grow in importance IMHO. Apple might have to spend an extra $1 or $2 per phone to increase the longevity if they're laboring under the illusion that 1 year is good enough for an expensive top-end product.