Previously, due to a contract renewal, I casually replaced my HTC J with the then-popular flagship HTC M8. Initially, it was a delight to use, with noticeable upgrades in speed, camera, and storage configuration. However, it gradually slowed down, and various issues began to emerge. Especially after traveling abroad, being in extremely cold environments shortened the battery life, and system updates eventually occupied more than half of the storage space, directly affecting the phone’s performance. In the end, I had no choice but to reluctantly replace it.