I can see “LTE” on my phone, not “4G”. What does that mean?
LTE and 4G are usually used interchangeably, so if you see LTE on your mobile, you can assume that you are surfing via 4G. And vice-versa. LTE will also appear on your device if you have activated VoLTE.
More details? In short: 4G is a network standard that enables a very fast mobile data connection. When 4G was launched, the speed needed to reach that standard was often too high. LTE, which stands for 'Long Term Evolution', is the technology developed to enable those 4G speeds. As that technology got closer to those speeds, the terms became increasingly interchangeable.