Yesim offers unlimited data eSIM plans specifically for Serbia. The plans contain unlimited data allowances and span a range of validity periods from 1 day to 30 days. Prices start at $8.27 USD for a 1‑day plan and can go up to $50.80 USD for a 30‑day plan. All unlimited options indicate that speeds may be throttled after heavy usage, and tethering is allowed. Some plans list 5G network support and cover Serbia only.
Because these unlimited plans are subject to a Fair Usage Policy, speeds may be reduced once a user reaches a high‑usage threshold. If you want to avoid potential speed restrictions, contact Yesim directly to confirm whether FUP applies and how much data remains available at normal speed.