How to know if a service provider is renting out 3G or 4G devices?

Currently, we are the first service provider for 4G Wi-Fi rental in Singapore.

If the foreign service providers do not state that their Wi-Fi speed in Singapore is 4G, then they are most likely providing 3G Wi-Fi rental. To confirm, if the service provider says that the download speed is 21.6Mbps, it is definitely 3G. The download speed for 4G service is 75Mbps – 150Mbps.

In addition, the above speed are the theoretical speed which are unrealistic. On average, the speed for 3G is 0.6 – 1 Mbps but 4G speed is 10 times faster at 12.3 – 29.9 Mbps.