Statement:
In Montenegro, mobile Internet is on average less expensive than in Brunei

In the Most expensive mobile internet rating Montenegro holds position #134 ²⁰²² out of 204 and Brunei is #88 out of 204 ²⁰²².
Position of Montenegro is better than position of Brunei.
Both countries holds average positions in the "Most expensive mobile internet" rating. So Average price of 1GB (USD) is an average for both Montenegro and Brunei, 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.

   Brunei	'Average price of 1GB (USD)' value is	1.7
   Montenegro	'Average price of 1GB (USD)' value is	0.6