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Mobimatter plans for Japan

6,108 live plans from 63 providers, ranked on what a gigabyte actually costs rather than on the sticker price. Checked 13 October 2026

Compare 6,108 plans →
£0.17 Lowest per GB Cheapest honest gigabyte here
£1.46 Median per GB Unlimited and fair-use excluded
£0.85–3.09 Typical band Where most plans land
56% Advertise 5G 61% allow hotspot

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Compare 6,108 plans

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 6,108 plans

View offer: Mobimatter, Japan 15 GB 1 Mobimatter Japan 15 GB 15 GB 30 days 4G Japan only £9.07 £0.61 per GB
View offer: Mobimatter, Asia 15 Countries 10 GB 2 Mobimatter Asia 15 Countries 10 GB 10 GB 30 days 4G +14 more countries £8.69 £0.87 per GB
View offer: Mobimatter, Asia 15 Countries 3 GB 3 Mobimatter Asia 15 Countries 3 GB 3 GB 15 days 4G +14 more countries £4.15 £1.38 per GB
View offer: Mobimatter, Asia 15 Countries 30 GB 4 Mobimatter Asia 15 Countries 30 GB 30 GB 30 days 4G +14 more countries £20.42 £0.68 per GB
View offer: Mobimatter, Asia 15 Countries 20 GB 5 Mobimatter Asia 15 Countries 20 GB 20 GB 30 days 4G +14 more countries £15.12 £0.76 per GB
View offer: Mobimatter, Japan 60 GB 90 days 6 Mobimatter Japan 60 GB 90 days 60 GB 90 days 4G Japan only £34.03 £0.57 per GB
View offer: Mobimatter, Japan 35 GB 60 days 7 Mobimatter Japan 35 GB 60 days 35 GB 60 days 4G Japan only £20.42 £0.58 per GB
View offer: Mobimatter, Japan Unlimited 3 Days 8 Mobimatter Japan Unlimited 3 Days 28 GB 3 days 4G Japan only £8.31 £0.29 per GB
View offer: Mobimatter, Japan Unlimited 5 Days 9 Mobimatter Japan Unlimited 5 Days 43 GB 5 days 4G Japan only £11.34 £0.26 per GB
View offer: Mobimatter, Japan Unlimited 10 Days 10 Mobimatter Japan Unlimited 10 Days 66 GB 10 days 4G Japan only £18.90 £0.29 per GB
View offer: Mobimatter, Japan Unlimited 7 Days 11 Mobimatter Japan Unlimited 7 Days 53 GB 7 days 4G Japan only £15.12 £0.29 per GB
View offer: Mobimatter, Asia 15 Countries 5 GB 12 Mobimatter Asia 15 Countries 5 GB 5 GB 15 days 4G +14 more countries £5.67 £1.13 per GB
View offer: Mobimatter, Japan 10 GB 13 Mobimatter Japan 10 GB 10 GB 30 days 4G Japan only £6.04 £0.61 per GB
View offer: Mobimatter, Japan 50 GB 14 Mobimatter Japan 50 GB 50 GB 30 days 4G Japan only £22.68 £0.45 per GB
View offer: Mobimatter, Japan 20 GB 15 Mobimatter Japan 20 GB 20 GB 30 days 4G Japan only £10.58 £0.53 per GB
View offer: Mobimatter, Japan 10 GB 16 Mobimatter Japan 10 GB 10 GB 30 days 4G Japan only £6.04 £0.61 per GB
View offer: Mobimatter, Japan 50 GB 17 Mobimatter Japan 50 GB 50 GB 30 days 4G Japan only £22.68 £0.45 per GB
View offer: Mobimatter, Japan 10 GB 18 Mobimatter Japan 10 GB 10 GB 15 days 4G Japan only £6.42 £0.64 per GB
View offer: Mobimatter, Japan 50 GB 19 Mobimatter Japan 50 GB 50 GB 30 days 4G Japan only £26.47 £0.53 per GB
View offer: Mobimatter, Japan 12 GB 20 Mobimatter Japan 12 GB 12 GB 30 days 4G Japan only £7.56 £0.63 per GB
View offer: Mobimatter, Japan 20 GB 21 Mobimatter Japan 20 GB 20 GB 30 days 4G Japan only £10.58 £0.53 per GB
View offer: Mobimatter, Japan 20 GB 22 Mobimatter Japan 20 GB 20 GB 30 days 4G Japan only £14.36 £0.72 per GB
View offer: Mobimatter, Japan Short Trip 23 Mobimatter Japan Short Trip 3 GB 5 days 4G Japan only £3.40 £1.13 per GB
View offer: Mobimatter, South Korea and Japan 10 GB 24 Mobimatter South Korea and Japan 10 GB 10 GB 30 days 4G +1 more country £7.56 £0.76 per GB
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