The Kindle Paperwhite is typically owned for long reading cycles-often years-so battery health and screen integrity are the main concerns. E-ink displays can crack if the device is flexed in a bag, and frontlight uniformity can degrade if impacted.
Charging ports are another common failure point due to repeated cable insertion and accidental strain. Repair is rarely cost-effective because consumer e-readers are not designed for easy component swaps; most fixes are limited to accessories or warranty replacements.
Replacement becomes the practical choice if the screen is damaged, the battery no longer lasts through normal reading routines, or the USB-C port becomes unreliable. Repair can still make sense in a limited way if the issue is a damaged case, a cable/charger problem, or a simple software restore resolves freezing.
When comparing to the threshold, also factor in your tolerance for downtime and whether a newer model's features (storage, lighting, speed) matter to you.