Giga.Tel does not provide a truly unlimited high‑speed eSIM plan for Japan. All of its Japan‑covered options either have a fixed data cap per day or a total data allowance that, after being consumed, throttles the connection to a reduced speed such as 512 kbps. For travelers who want a large, uninterrupted data allotment, Giga.Tel offers fixed plans like the 60 GB 90‑day plan priced at $59.99 USD, the 90 GB 365‑day plan at $181.99 USD, or the 50 GB 30‑day plan at $25.49–$30.49 USD. Choosing one of these fixed‑data plans can be more cost‑effective for moderate to heavy data users compared to the “unlimited” name plans that ultimately enforce speed reductions after the daily limit is reached.