iPhone 18话题下的问题与答案是同一批机制的不同侧面：先看结论，再看为什么。
iPhone 18话题下的问题与答案是同一批机制的不同侧面：先看结论，再看为什么。
Fast drain on a new iPhone 18 is usually the settling period. Still obvious after a few days? Check battery usage, background refresh and location in that order.
Updated 2026-09-17Warm is normal on a new iPhone 18 while it indexes, analyses photos and syncs iCloud. Apple's guidance is about 72 hours. Hot to the touch, with dimming or stutter, is not.
Updated 2026-09-17Overheating after migrating is normal: the new phone rebuilds indexes and caches and re-downloads apps. Charge on Wi-Fi and leave it overnight.
Updated 2026-09-17Heat and drain in a new iPhone's first days are normal: worst on days 1-3, settling by days 3-7. Do not judge the battery yet, and do not rush a return.
Updated 2026-09-17WhyMyPhone reads live thermal state, CPU, battery, and storage metrics, then gives you the most likely cause plus fixes you can apply right away — with AI follow-ups when you want more precision. Rule-based diagnosis runs on-device; your data never leaves your phone.
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