Spoiler: the Aussie one’s keen
Ubigi vs ZenSim Japan - Which Is Better?
Comparing Japan eSIMs and thinking about Ubigi? ZenSim is Australian owned, has outrageously good reviews and we’re also cheaper on the plans most travellers actually buy - but don't take our word for it, see the comparison below.
4.9
(330)

Why ZenSim over Ubigi?
Ubigi is a well-known travel eSIM provider with plenty of data options, but their site can be confusing and they don’t show AUD pricing, which can lead to bank fees. Their “unlimited” Japan plan is also capped at 60GB for the whole month, so it’s not truly unlimited.
ZenSim keeps things clearer with transparent pricing, daily fair-use caps that reset every night, unlimited hotspotting, and easy multi-country top-ups in the app. With better reviews, friendlier support, and cheaper key plans like 30-day unlimited at A$94.50 vs Ubigi’s A$106, ZenSim offers better value for Aussie travellers.
*AUD pricing has been calculated based off the current AUD/USD rate
Ubigi vs ZenSim Japan Comparison
| Feature | ZenSim | Ubigi |
|---|---|---|
| Unlimited 30 Day Plan | A$94.50 3GB/day | A$106 60GB/month |
| 20GB-25GB 30 Day Plan | A$38 | A$51 |
| 10GB 30 Day Plan | A$26 | A$27 |
| Customer reviews | 4.9 / 5 ⭐ | 4.1 / 5 ⭐ |
| Company based in | Australia | France |
| Unlimited hotspotting | ✅ | ✅ |
| Supports AUD pricing | ✅ | ❌ |
| Unlimited Fair-use policy | 3GB/day (resets at midnight) | 60GB month (doesn't reset) |
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Japan eSIM Plans

Hotspot ilimitado

Recargas disponibles

Solo datos - sin número de teléfono
Cómo usar eSIMs de viaje
Cómo funciona
Si nunca usaste una eSIM de viaje, te espera una buena sorpresa. Se configura en minutos y cuesta una fracción de lo que pagarías en roaming. Ver Qué es una eSIM
1. Revisión rápida
Primero revisemos si tu teléfono es compatible. Nuestro Verificador de compatibilidad eSIM tiene todas las respuestas.
2. Elige un plan y tus datos
Selecciona el plan para tu destino, ingresa tus datos y elige tu método de pago.
3. Instala tu nueva eSIM
Instala tu eSIM desde la app de ZenSim o escanea el código QR que te enviamos por correo.
4. Activada al llegar
Disfruta de tus datos apenas aterrices. Consulta tu consumo en la app de ZenSim.
Garantía de devolución del 100% del dinero
Conoce nuestra súper flexible y prueba una eSIM sin riesgos.
Conexión 4G/5G confiable
Respaldado por las mejores redes en Japan.
Conserva tu número actual
Puedes tener varias eSIM instaladas y activarlas o desactivarlas cuando quieras.
Hotspot sin límites
Comparte internet desde tu teléfono con tu laptop, tu tablet, tus amigos o con quien quieras gracias a nuestro hotspot ilimitado.
Lo técnico
FAQs
Sure, Ubigi is a well-known travel eSIM provider with a wide range of plan sizes in Asia. However, if you want to save on the plan prices, care about customer reviews, don't want your unlimited to be capped at 60GB for the month, or want to support an Aussie company, then ZenSim is the one for you.
Mainly because ZenSim is cheaper across the most common plans and comes in with a higher customer review rating which matters! On top of that, ZenSim offers unlimited hotspotting, clear daily fair-use caps that reset nightly, transparent AUD pricing, and friendlier Aussie-based support.
Ubigi’s unlimited 30 day plan is capped at 60GB for the entire month, so it behaves more like a 60GB monthly pack than unlimited. ZenSim has a speed cap of 3GB/day on unlimited plans which equates to 60GB for the month but the difference being it resets every day. So you have unlimited access every single day regardless of the usage the day before.
Yep! Both allow hotspotting in Japan and both have no limits on how much you can hotspot.
Both providers connect to strong Japanese networks though you’ll get better overall value with ZenSim thanks to cheaper pricing.
Yep! ZenSim plans across the 3 plans we compared (10GB, 20-25GB, Unlimited) for 30 days are all cheaper than their Ubigi counterparts. For example Ubigis unlimited plan comes in at A$106 vs ZenSims which is A$94.50.



