What religions avoid or limit the use of modern conveniences?

For instance, Amish limit use of technology - and Orthodox Jews avoid use of technology on the Sabbath. Are there other religions that limit the use of modern conveniences? Thanks!|||Mennonites use limited technology. I think 7th Day Adventists and JW restrict activities to avoid any "work" during the sabbath. Meals are made ahead of time. The day is spent resting and worshipping.|||Amish and Mennonite|||Most Jungle Tribe religions....