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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Great service
11 May 2026
Efficient support
11 May 2026
Esim not working
Very quick responses.
Explaining what is needed with visual examples and clear written requests.
11 May 2026
Superb customer service.
10 May 2026
Excellent customer service
Excellent customer service. They respond to messages right away.
10 May 2026
Solved problem
Solved the problem after a few misunderstandings.
Happy that problem was solved
8 May 2026
Quick, patient and nice service
Thank you for your quick response, patience and thorough explanation through the steps
7 May 2026
After sales service
I disliked the hassle of carrying a pocket WiFi device along with my smartphone, so I tried e-SIMs from various companies. I often struggle with e-SIM setup. ByteSIM has excellent after-sales service; they help you until the very end. This is a service that other companies don't offer.
6 May 2026
Awesome customer service
I couldn’t work it out at first. I messaged you guys online and you gave me step-by-step on how to do it made it easier and everything‘s working perfect. I haven’t had a problem with anything after that and the service has been great.
28 April 2026
Phenomenal
Phenomenal! Customer service was quick and responsive and professional! I cannot recommend this company enough for helping their customers activate esims. I tried with a different provider the night before (whom I’ve used before for another country) I went through an entire dinner waiting for a response. Bytesim responded in less than a minute and my entire installation took maybe 3 minutes.
6 May 2026
I had a problem connecting my eSIM…
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 understandable way. Needless to say we got there in the end! Couldn’t have done it without my online assistance. Great service!
5 May 2026
Fast and efficient assistance with my…
Fast and efficient assistance with my connection issues.
4 May 2026
Very good service
Very good service, fast and reliable. Customer support is very helpful and their response is fast. The prices are affordable. I recommend their services.
30 April 2026
Excellent super fast Whatsapp support
I had the usual setup issues that you tend to have with japanese e-sims due to their APN setup, I know this from my past experience with other e-sim providers. Even though the initial setup instructions from ByteSIM ended up being wrong, I received super fast support via Whatsapp and got it resolved with different APN settings in a few minutes.
3 May 2026
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