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
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I had a problem with configuration (the…
I had a problem with configuration (the automatic one didn't work for some reason). The help I received was completely satisfactory. From identifying the problem to providing the correct solution. A very professional approach to the customer. Complete satisfaction. Highly recommended. Thank you.
18 May 2026
the customer service was top notch the…
the customer service was top notch the person i spoke to was very helpful and patient, would highly recommend!!
17 May 2026
Elite Customer Service
Very attentive help was given and made the process of fixing the problem easy. With constant updates on what to do. Customer service was elite!
17 May 2026
The customer service replies fast on my…
The customer service replies fast on my inquiry even if I send the message early in the morning. The solutions they give is helpful and my problem got solved immediately.
17 May 2026
Timely
Timely, perfect support. Saved me while I was about to lose the hope to use the eSIM. Thank you
17 May 2026
Your 24 hr WhatsApp service was very…
Your 24 hr WhatsApp service was very responsive and and staight forward. Your employee managing this service on morning of 10/05/2026 ( about 04.15) was very supportive. They managed my query with great efficiency and politeness.
10 May 2026
I was having an issue with connectivity…
I was having an issue with connectivity with the esim once I landed in Tokyo. I went and asked the dedicated support Channel for some help and they were able to help me in troubleshooting my issues within minutes.
16 May 2026
Great tech service by ByteSim
Tech support was very patient and continued to address the verification of my eSim install before arriving in my travel location. Once in my travel location all I did was turn on my phone and everything worked perfectly.
15 May 2026
Thank you for help
15 May 2026
I'm very thankful for this apps i give…
I'm very thankful for this apps i give 10 stars and also the incharge of costumer service from Whatsapp thank you so much for assist and guide..
14 May 2026
Avoid this provider
Avoid this provider. I purchased a 10-day eSIM, but the service was cut off well before the end of the term.
Their customer service is incredibly dishonest. Here are the facts, backed by my chat history:
• Contradictory information: They first confirmed in writing that activation was impossible before May 4th due to a technical issue on their end.
• Manual setup: On May 4th, I had to contact them again because the notification never arrived, and they provided a QR code for manual installation at 11:32 AM.
• Bad faith: Now, they claim the eSIM was activated on May 3rd "on their end" to justify the premature expiration.
This is a total contradiction of their own previous messages. When confronted with these facts, they simply stopped responding. They try to use every technical excuse possible (like blaming me for not deleting an old line) to avoid taking responsibility for their system errors.
Do not waste your money here. There are many other reliable providers who actually respect their customers and their own service agreements.
13 May 2026
Unprompted review
Reply from ByteSIM
Hi Riche,
We’re very sorry to read your feedback and understand how frustrating this situation must have felt.
Please share your order number with us so we can investigate the full activation timeline, chat history, and technical records in detail. If there was any inconsistency or issue on our side, we will take responsibility and provide a proper solution.
Our support team is available 24/7, and we’re proud to be one of the highest-rated eSIM providers online, with a 4.8 customer service rating built on fast and responsible support.
Most importantly, if you are not satisfied with the service, we are happy to offer a no-hassle refund. Please contact us again with your order details so we can resolve this fairly.
Kind regards,
Sunny
ByteSIM Support Team
Thank you
I was in trouble with activation on eSIM when I arrived at the destination,but customer service staff helped me quickly by email.
12 May 2026
Helpful and prompt
Took a few rounds back and forth but then I was assisted successfully
Thank you for your patience! :)
12 May 2026
Prompt response and persistence in…
Prompt response and persistence in trying to solve customer issues.
Good manners over the chat. Being clear over what your team is currently attempting wrt solving issues.
11 May 2026
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