Universal 3-in-one SIM Card for use in Over 200 Countries with $5 Credit – Voice, Text and Mobile Data as Low as $0.01 per MB. Compatible with All Unlocked GSM Phones. 4G in 50+ Countries.

Legit system. Works like a charm. Simple interface, easy to use and very straightforward. The packaging gives all the steps you need (it's only 4 steps), and the website is self-explanatory. The testing feature is great, which makes things a lot easier. Works instantly.

la flexibilidad y disponibilidad cuando visitas mas de un país en un corto periodo, no tienes que comprar una nueva sim card cada que cambias de pais. no me gusto que solo se tenga un limite mensual y tengas que esperar el corte para recargar, aunque le hayas dado la opción de recarga automatica, sobre todo en estos tiempos de emergencia,a mi me ocurrió, tuve que usar mas datos de los esperados a consecuancia del coronavirus y sus consecuencias en el turismo.

The OneSim is perfect for travelling and is very user friendly. The instructions are very easy to follow and are very thorough. I would highly recommend purchasing if you are travelling or study abroad! Great value for your money and offers great plans as well. You should purchase!

The sim card was very easy to activate on their website and I got it setup within minutes. After putting the sim card into my phone, I had to configure a few settings, but after that it was working and it is going very smooth now.

Planning an extended trip to Europe and North America an important consideration was the ability to maintain communications with family and friends at a reasonable cost. After examining several options, it was OneSimCard that best met my needs. Having ordered the card through Amazon it was next day delivery. Setting up was a breeze, once I realised the separation of the nano card from the micro card. The functionality was tested, and all worked as expected. The OneSimCard certainly deserves 5-star rating.

Work as expected. The US number option is useful for many US services.