there are two ways to surf the internet: WLAN and 3G.

1. WLAN

The condition is that there are WLAN hotspots in the area where you are located, and there is a WLAN login authentication method. You can search for WLAN hotspots by using the tablet WLAN owner.

1. The hotspot of ChinaMobile is called CMCC, the hotspot of China Telecom is called ChinaNet, and the hotspot of China Unicom is called ChinaMobile. As long as they have corresponding mobile phone numbers, they can pass the login authentication. The Internet access fee depends on the package. Generally, it is similar to a real-name mobile phone card like GSM, and WLAN is free; Other non-real-name mobile phone cards may be charged.

2. In addition to the hotspots of the above three telecom companies, you can also selectively find large shopping malls, high-end restaurants, hotels and other places, and merchants generally provide free WLAN Internet access.

3. Personal hotspots. Sometimes someone in the active area just provides free WLAN, or some people think that WLAN can be used to surf the Internet without password. It's just that these personal WLAN generally use ordinary routers, which cover a small area and are not easy to encounter, and the network speed is fast or slow.

2. 3G

China Mobile, China Telecom and China Unicom all have 3G network cards, so you can surf the Internet anywhere with 3G network cards, except in remote areas where there is no cell phone signal. 3G network cards can be sold in the business hall, generally charged according to the flow, and at least quarterly cards must be purchased. China Telecom's quarterly card has 1G traffic and 2G traffic, which are 151 yuan and 311 yuan respectively; China Unicom's quarterly cards have 9G traffic and 18G traffic, which are 311 yuan and 611 yuan respectively. China Mobile's 3G network is not prominent, so most people choose the 3G network cards of China Telecom and China Unicom. Compared with Unicom's 3G card, China Telecom's 3G coverage is high, and China Unicom's 3G network speed is fast, so it should be purchased according to actual needs.

There are two other points to note. First, whether the tablet computer supports 3G; The second is the built-in external mode supported by 3G card. If it is external, you need to buy a 3G wireless network card with USB interface (don't confuse it with the 3G network card), that is, insert the 3G network card (the same as the SIM of the mobile phone) into the 3G wireless network card, and then insert the 3G wireless network card into the tablet computer to dial up the Internet.

Generally, a 3G wireless network card with a miscellaneous brand costs 111 to 171 yuan; Huawei and ZTE's 331 went to 351 yuan; In addition, there is a high imitation 3G wireless network card from Huawei and ZTE, which is about 51 cheaper than the genuine one. It is difficult to distinguish high imitation from genuine products, such as Huawei EC122, except that there is a difference in the depth of the silver square on the card body, and the rest are exactly the same. High imitation will sell for 311, and genuine products will sell for 351. Fortunately, many high imitation 3G wireless network cards are also very close to the genuine products. The difference between the high imitation and the genuine is that the high imitation will generate a lot of heat when used for a long time, and its natural service life will be shorter than that of the genuine.