Hotspot and tethering are allowed on the ETravelSim Malaysia eSIM's fixed-data plans, but not on the Unlimited plans, which are designed for single-device use. If you need to share data with a laptop or another phone — common for digital nomads working from KL co-working spaces or Johor Bahru cafés — pick a fixed plan in the 50 GB or 100 GB range. Tethered data draws from your plan allowance like any other usage.