China Data SIM Card 80GB of 4G LTE Data Valid for 30days (3-in-1)

Instructions were a bit confusing when first registering. The instructions provided was for the standard SIM w/ a phone number. It wasn't until after I contacted customer service that additional instructions were provided to register the Data-only SIM card.The SIM worked great in China with full LTE service.**BE AWARE: Once the card is registered, the 30-day countdown begins. I registered the card prior to leaving for China. I did not use the card at all prior to my arrival. I wanted to be proactive and register the card prior to my arrival in China so I didn't have any hiccups. Unfortunately, the card "expired" during my stay. This needs to be clearly listed in the instructions.

You do need to register this to get it to work. Did not work in Hong Kong but that was expected. I was able to use a VPN with this. Used in a portable WIFI hotspot do not know if it would work in a phone.

I activated the card with my passport information on their website. The card can be recognized as China Unicom, but there was no data at all. I bought another sim card from China Unicom and it worked on my phone, so I am sure the problem is not with the compatibility of my phone.

This is the sim card dedicated for the IOT (Internet of Thing) device, not for cell phone.Also, keep it in mind, in order to activate this SIM card, you are required to provide your passport information to the carrier. You will be under the Internet censorship.

This is totally garbage, I am a Chinese and I cannot use it in mainland China, I called several times but nobody pick up the customer service phone and no response by email. This is a waste of money

Does not work and could not figure out how to get refund