: Go to Settings > Chats > Chat Wallpaper and select "Choose a New Wallpaper".
: Open a specific chat, tap the contact's name at the top, and select Wallpaper & Sound to set a unique background. 1080x1920 WhatsApp Wallpaper">
: You can set these high-res images as a global wallpaper for all chats or assign unique wallpapers to individual contacts to easily distinguish between conversations. : Go to Settings > Chats > Chat
: To ensure your 1080x1920 image stays sharp, go to Settings > Storage and Data > Photo upload quality and select "Best quality" . Tips to fix blurry WhatApp profile pictures | Croma Unboxed 1080x1920 WhatsApp Wallpaper">