Excellent mobile data coverage across multiple south asian countries. Seamless mobile data transfer while crossing borders. I had taken 2 packages, a 7 days and a 1 day to cover my 8 days stay. On com... See more
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Review summary
Created with AI, based on recent reviews
What people talk about most
Reviews shaping this summary
I had difficulty in installing/activating the eSIM (I am not so good at these things) and an employee replied to me immediately. I send screenshots and noticed that the reply was not automatic. Someon... See more
I had a problem connecting my eSIM abroad so contacted customers services for advice. I’m not the most ‘tech-savvy’ person in the world but my problem was handled with great patience and in an underst... See more
Customer service responded VERY quickly (much quicker than I thought) and was able to resolve the problem that I had to my utmost satisfaction. I've used other eSIM providers in the past, found By... See more
Company details
About ByteSIM
Written by the company
Stay connected worldwide with ByteSIM’s international travel eSIM. Say goodbye to expensive roaming charges and enjoy seamless mobile data wherever you go. Fast, Reliable, and Truly Unlimited – 5G High-Speed, our unlimited data plans provide top-tier network coverage in 200+ countries, including Japan, USA, Vietnam, Malaysia, Thailand, South Korea, India, China, and Indonesia. Get your eSIM today and stay connected hassle-free!
Features:
- Affordable Pricing: ByteSIM offers cost-effective eSIM plans for tourists and business travelers, serving millions of users worldwide.
- Reliable Network: As a licensed telecom operator, ByteSIM delivers fast, stable, and secure 5G connectivity in 200+ countries.
- Flexible Plans: Choose from daily data (300MB/day), high-volume options (50GB), or truly unlimited data & call plans, with service durations from 1 to 30 days.
- Local Number: Available in many ByteSIM plans for various countries, including the USA, Canada, UK, France, Thailand, Australia, Vietnam, and more, allowing you to receive calls and SMS seamlessly.
APP:
Support:
- Frequently Asked Questions
- Email: service@bytesim.com
- WhatsApp: +852 9243 7776
Contact info
China Resources Building, 26 Harbour Road, Wan Chai, Hong Kong
- service@bytesim.com
- bytesim.com
4.8
Excellent
4K reviews
Asks customers to review
This company invites their customers to review, whether positive or negative
Replied to 100% of negative reviews
Typically replies within 24 hours
How this company uses Trustpilot
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I had trouble setting up my eSIM
I had trouble setting up my eSIM, but a very patient and helpful representative on the helpline guided me through the process. Overall, excellent service.
April 1, 2026
Amazing support
Amazing support! I had some issues, so they helped me with sending sreenshots back and forth. Within a few minutes we had it all sorted out. Can really recommend :)
March 30, 2026
The support help me a lot by step by…
The support help me a lot by step by step instruction on activation of a new subscription
March 30, 2026
Great support
I had a problem with my eSIM and contacted the support via WhatsApp
They reissued eSIM very quickly
Thank you once again!
March 29, 2026
My experience with ByteSIM has been…
My experience with ByteSIM has been very positive. I encountered a small issue when getting started, but the online helpdesk responded quickly and resolved it efficiently.
March 24, 2026
Fast and accurate support
Fast and accurate support, e sim wouldn't work, and the operators solved the problem in no time and guided me through the whole process.
March 29, 2026
Excellent service and support!
March 28, 2026
I had a smooth and pleasant experience with ByteSize.ByteSim
I had a great experience with ByteSim. They have a very sufficient way of getting back to their customers when there’s a need. They are quick, patient and understanding while I was on line needing them to help me with the issue that I had.
March 28, 2026
Best help agent ever
Best help agent ever , very fast and straight answers , helps navigate all setup even for people who doesn’t know how their own phone works ( like me)
March 28, 2026
Great support!
Competitive prices and when we encountered difficulties the whatsapp support was helpful and we could solve our connectivity issues
March 28, 2026
Very helpful when I could not get my…
Very helpful when I could not get my eSIM to work in China.
March 28, 2026
Unprompted review
The person that assisted me was very…
The person that assisted me was very professional and found a silolution to my prblem within minutes !
March 27, 2026
Having a live agent i stead of an AI…
Having a live agent i stead of an AI agent was the best decision you took. It just builds a lot more trust in the companyamd its services. Also the agent was super helpful.
Pls don’t switch to robots
March 27, 2026
Great reactivity and help
Some problem to connect upon arrival in Taipei but after exchanging several screenshots the problem was solved. Reactivity and competency all what we need ! Bravo great job.
March 25, 2026
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