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
(383)

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) |
Save money with our
Japan eSIM Plans

Configúrala en pocos minutos

Hotspot ilimitado

Agrega más datos con recargas

Instálala antes de viajar

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
Actualiza la configuración al llegar (te la enviaremos por correo) y listo, estar ás conectado. Consulta tu consumo en la app de ZenSim.
No lo vas a creer
Todo pros, nada de contras
Garantía de devolución del 100%
Cambiaron tus planes, tu dispositivo es incompatible o está bloqueado, o simplemente no logras que funcione - estás cubierto, revisa nuestra .
eSIM solo de datos - sin número de teléfono
Usa aplicaciones de internet como WhatsApp y Messenger con normalidad. Nota: aún no puedes hacer llamadas tradicionales ni enviar SMS.
Conexión 4G/5G confiable
Respaldada por las mejores redes en Japan, incluyendo .
Múltiples opciones de datos
Incluye datos ilimitados por 5, 15 o 30 días y planes desde solo 1GB.
Hotspot ilimitado (tethering)
Comparte internet con tu laptop, tablet, con tus amigos o con quien quieras gracias a nuestro hotspot sin límites.
Se activa automáticamente al llegar
Se activa automáticamente cuando llegas a Japan. Solo actualiza la configuración (te enviaremos instrucciones) y listo, estarás conectado.
Instálala hasta 90 días antes de viajar
Instala tu eSIM de Japan en cualquier momento dentro de los 90 días previos a tu viaje, el plan no comenzará hasta que llegues a Japan.
Conserva tu número actual
Puedes tener varias eSIM instaladas y activarlas o desactivarlas cuando quieras.
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.



