The reason I switched to Samsung is because I had an Apple device and then a Google device reach the end of their usefulness at the two year mark. The 3 Samsung phones I've had since then have lasted to the 4 year mark and I was able to replace them on my timeline, not the device's.
The S20+ I'm typing this on is 4.5 years old and feels as functional as the day I got it, it does not feel slow at all and if the battery life has lessened I haven't noticed.
The source for these figures is self-reporting by the brand, so take it with a grain of salt. E.g. JENBIZZ MB1001 tablet lists 8000 charge cycles.
https://eprel.ec.europa.eu/screen/product/smartphonestablets...
But when the batteries fail, do they catch on fire? That's the problem with Samsung, lol :(.
Samsung for my next phone it is. I've had mine for 6 years and battery life is still great.
While interesting, you kinda need to know how long a charge lasts for it to be informative.
For example, it wouldn’t be as impressive if you also had to charge it more often than the competitors.