Ohayu is a travel eSIM provider offering mobile data plans for 170+ countries. It connects users to local mobile networks abroad, with supported operators shown on destination and Global plan pages before purchase. Ohayu eSIMs are data-only, so travelers can use mobile internet while keeping their regular number for WhatsApp, Telegram, and other apps. Ohayu has eSIM apps for iOS and Android that let users install eSIMs, manage plans, check data usage, and add more data where top-up is available. Global subscription plans also let unused data roll over to the next billing period while the subscription stays active. Hotspot is supported on Ohayu plans where the device allows it.