Step One Placing Up Your SystemBefore downloading WhatsApp, ensure your system is ready. Always check that your phone has enough free space for storing for a fresh app. How big is the WhatsApp app varies slightly relying in your operating-system, whatsapp网页版 however you will generally need at least 100MB available. Ensure your phone is attached to a well balanced Wi-Fi network or has a dynamic portable data connection to prevent interruptions.