Is roaming in Eswatini included with my standard US, UK, or EU SIM card?

No, Eswatini is not typically included in standard domestic or regional roaming plans from US, UK, or EU carriers. You should anticipate significant international roaming charges if you use your home SIM card. Major carriers like AT&T, Verizon, T-Mobile in the US, or Vodafone and O2 in the UK, will likely impose their highest 'Rest of World' international rates, often $10-$15 per day, which can quickly become very expensive. WestESIM offers a far more cost-effective and predictable solution.