Minecraft wiki entry for Things_not_to_do, associated text: In Bedrock Edition, there is no world border, but instead a place called the Stripe Lands but the farther out you go from spawn, the greater the chance of you falling into the void due to block hitboxes not being rendered correctly, especially in the Stripe Lands. Also, many of the problems from venturing far from spawn in a world that apply to Java Edition may also apply to Bedrock Edition.