I used to work at Zhuanzhuan, teaching you how to buy phones more cost-effectively.

If you want to buy an Apple phone that has been released for more than two years, prioritize those marked with a B-grade battery replacement.
Like the iPhone 12, 13, and 14, now you can find them for just over a thousand, and these offer really high cost performance.
Unlike some phone shops outside that falsely advertise battery health, claiming a three- or four-year-old phone still has 90% battery health, which is unreliable.
Zhuanzhuan uses genuine brand batteries, with battery life comparable to new phones, so you can buy with confidence.