Statement:
In Portugal, mobile Internet is on average less expensive than in Japan

In the Most expensive mobile internet rating Portugal holds position #45 2022 out of 204 and Japan is #43 out of 204 2022.
Position of Portugal is better than position of Japan.
Both countries holds average positions in the "Most expensive mobile internet" rating. So Average price of 1GB (USD) is an average for both Portugal and Japan, compared to most countries of the World.

Referencies:

  1. Most expensive mobile internet 2022 by cable.co.uk
    The countries in the rating sorted by 'Average price of 1GB (USD)' in descending order.
    Japan 'Average price of 1GB (USD)' value is 3.85
    Portugal 'Average price of 1GB (USD)' value is 3.67