Transfer Chat feature:
✅ Personal messages, media, documents, and account info (profile picture, "about") are transferred when using WhatsApp’s official chat transfer feature.
✅ Archived chats remain archived and are included in the transfer as long as they are part of the full chat backup. No need to unarchive manually—archived status is preserved.
❌ Locked chats (via Chat Lock) are not transferred with their locked status, as this is a local device setting. You’ll need to re-lock chats on the new phone.
❌ WhatsApp peer-to-peer payment messages, call history, and Channel posts are not transferred.
✅ Stickers (including third-party ones) are transferred, but may require re-downloading or reinstallation in some cases.
✅ Transfer works between same OS devices (Android to Android, iOS to iOS) via QR code; iPhone to Android requires a USB cable and is supported.
✅ Full media (photos, videos, documents) is included if storage allows and the transfer completes successfully.