Is it better to use a phone card for traveling abroad or rent a portable wifi?

Hello, calling method: 1. Buy or rent a local mobile phone overseas. This kind of cheap mobile phone often comes with a phone bill, so try to use SMS, because the transmission cost of SMS is much cheaper. 2. Buy overseas calling cards, and buy calling cards abroad. It is cheaper to talk. 3, open international roaming, so your travel phone bill is also less.

Internet access: 1. Buy overseas calling cards. There are a lot of such services on a treasure, generally just for surfing the internet, but the signal is very stable and will not be intermittent. After purchase, the seller can mail it to a designated place in China or pick it up at the airport before departure. 2. Rent out WIFI. Outbound wifi is a portable wifi signal generator. The advantage of renting outbound WiFi is that it can be used by many people and is more convenient. 3. Buy overseas traffic packages. The advantage of traffic packets is that they don't cross cards, don't change numbers, and have no equipment, but sometimes the signal will be weak or even no signal, which is not so stable and needs to be activated after leaving the country and landing. If they cannot be activated, they cannot be used. 4. It's very convenient to have overseas Internet access service in Alipay. After logging in to the homepage of Alipay, click More, and you can see that there is overseas Internet access in the convenience service. 5. Overseas traffic services ordered by Alipay can generally be unsubscribed as long as they are not in kind and activated before use. If you unsubscribe, you should choose the unsubscribe or after-sales service in my order on Taobao's page for a refund. Thank you.