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FlySimio plans for Japan

2,743 live plans from 24 providers, ranked on what a gigabyte actually costs rather than on the sticker price. Checked 27 August 2026

Compare 2,743 plans →
£0.21 Lowest per GB Cheapest honest gigabyte here
£1.35 Median per GB Unlimited and fair-use excluded
£0.76–2.98 Typical band Where most plans land
52% Advertise 5G 85% allow hotspot

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We earn a commission on some links below. Commission carries zero weight in the ranking formula, which is published in full. Prices are indicative and the provider's own checkout is always authoritative.

Showing 24 of 2,743 plans

View offer: FlySimio, Japan 3GB 15Days 1 FlySimio Japan 3GB 15Days 3 GB 15 days 5G Japan only £3.12 £2.81 £0.94 per GB
View offer: FlySimio, Japan 3GB 30Days 2 FlySimio Japan 3GB 30Days 3 GB 30 days 5G Japan only £3.30 £2.97 £0.99 per GB
View offer: FlySimio, Japan 50GB 30Days 3 FlySimio Japan 50GB 30Days 50 GB 30 days 5G Japan only £31.18 £28.06 £0.56 per GB
View offer: FlySimio, Japan 1GB 7Days 4 FlySimio Japan 1GB 7Days 1 GB 7 days 5G Japan only £1.28 £1.16 £1.16 per GB
View offer: FlySimio, Japan 10GB 30Days 5 FlySimio Japan 10GB 30Days 10 GB 30 days 5G Japan only £8.62 £7.76 £0.78 per GB
View offer: FlySimio, Japan 20GB 30Days 6 FlySimio Japan 20GB 30Days 20 GB 30 days 5G Japan only £15.04 £13.53 £0.67 per GB
View offer: FlySimio, Japan 10GB/Day (nonhkip) 7 FlySimio Japan 10GB/Day (nonhkip) 10 GB/day 7 days 5G Japan only £62.13 £55.92 £0.80 per GB
View offer: FlySimio, Japan 10GB/Day 8 FlySimio Japan 10GB/Day 10 GB/day 7 days 5G Japan only £64.19 £57.77 £0.83 per GB
View offer: FlySimio, Japan 3GB 15Days (nonhkip) 9 FlySimio Japan 3GB 15Days (nonhkip) 3 GB 15 days 5G Japan only £5.25 £4.72 £1.58 per GB
View offer: FlySimio, Japan 3GB 30Days (nonhkip) 10 FlySimio Japan 3GB 30Days (nonhkip) 3 GB 30 days 5G Japan only £5.41 £4.87 £1.62 per GB
View offer: FlySimio, Japan 5GB 30Days 11 FlySimio Japan 5GB 30Days 5 GB 30 days 5G Japan only £4.95 £4.46 £0.89 per GB
View offer: FlySimio, Japan 3GB 15Days (IIJ) 12 FlySimio Japan 3GB 15Days (IIJ) 3 GB 15 days 4G Japan only £3.12 £2.81 £0.94 per GB
View offer: FlySimio, Japan 1GB 7Days (nonhkip) 13 FlySimio Japan 1GB 7Days (nonhkip) 1 GB 7 days 5G Japan only £1.93 £1.74 £1.74 per GB
View offer: FlySimio, Japan 3GB 30Days (IIJ) 14 FlySimio Japan 3GB 30Days (IIJ) 3 GB 30 days 4G Japan only £3.30 £2.97 £0.99 per GB
View offer: FlySimio, Japan 50GB 30Days (IIJ) 15 FlySimio Japan 50GB 30Days (IIJ) 50 GB 30 days 4G Japan only £31.18 £28.06 £0.56 per GB
View offer: FlySimio, Japan 50GB 180Days 16 FlySimio Japan 50GB 180Days 50 GB 180 days 5G Japan only £51.35 £46.22 £0.92 per GB
View offer: FlySimio, Japan 1GB 7Days (IIJ) 17 FlySimio Japan 1GB 7Days (IIJ) 1 GB 7 days 4G Japan only £1.28 £1.16 £1.16 per GB
View offer: FlySimio, Japan 20GB 30Days (nonhkip) 18 FlySimio Japan 20GB 30Days (nonhkip) 20 GB 30 days 5G Japan only £20.17 £18.16 £0.91 per GB
View offer: FlySimio, Japan 10GB 30Days (nonhkip) 19 FlySimio Japan 10GB 30Days (nonhkip) 10 GB 30 days 5G Japan only £12.10 £10.89 £1.09 per GB
View offer: FlySimio, Japan 10GB 30Days (IIJ) 20 FlySimio Japan 10GB 30Days (IIJ) 10 GB 30 days 4G Japan only £8.62 £7.76 £0.78 per GB
View offer: FlySimio, Japan 5GB 30Days (nonhkip) 21 FlySimio Japan 5GB 30Days (nonhkip) 5 GB 30 days 5G Japan only £7.26 £6.54 £1.31 per GB
View offer: FlySimio, Japan 1GB/Day FUP1Mbps 22 FlySimio Japan 1GB/Day FUP1Mbps 1 GB/day 7 days 5G Japan only £10.27 £9.24 £1.32 per GB
View offer: FlySimio, Japan 20GB 30Days (IIJ) 23 FlySimio Japan 20GB 30Days (IIJ) 20 GB 30 days 4G Japan only £15.04 £13.53 £0.67 per GB
View offer: FlySimio, Japan 3GB/Day 24 FlySimio Japan 3GB/Day 3 GB/day 7 days 5G Japan only £28.24 £25.42 £1.21 per GB
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