Best japan SIM Card & eSIM Plans

Discover 32 SIM card in Japan on Trip.com, updated September 7, 2026, with experiences lasting from 1 to 2 hours. Find the perfect adventure for your day!

From $0.08 per person, with an average total of $1.74. Choose the option that suits your plan.

With 92.503k verified reviews, SIM card Japan boast an average rating of 4.6.

This week's most popular SIM card: "Global (77 Countries) 5G/4G eSIM | Supports Google Maps/TikTok/ChatGPT | Data Plan | 24-Hour Billing | 1–7 Days | QR code", with 33.517k reviews and a 4.4 rating.

The next available day tour departs on September 8, 2026. Book now to secure your spot!

Japan SIM card usually take about 1 hours — perfect for a relaxed, immersive experience!

September is the perfect time to visit Japan! Choose from 32 available day tours, including seasonal favorites like Global (77 Countries) 5G/4G eSIM | Supports Google Maps/TikTok/ChatGPT | Data Plan | 24-Hour Billing | 1–7 Days | QR code.

Your trip, worry-free! All day tours are run by licensed suppliers with verified reviews, and many include free cancellation before departure.

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32 results for Japan SIM card

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AllAttractions (255372)Cultural experiences (440)Boat experiences (147)Shows & events (94)Food & drink (669)Spa & wellness (160)Day tours (1693)Outdoor experiences (483)Travel photography (144)Water activities (126)Nature & wildlife (142)City sightseeing (348)Aerial tours (12)SIM card (32)Airport express (16)City pass (123)Wi-Fi (2)Shuttle bus (151)Travel extras (49)Visas (1)Boat tickets (20)JR Pass (53)Equipment rental (1)

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Reviews/Trip Moments

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Reviews: Japan SoftBank 4G/5G eSIM | TikTok & ChatGPT Available | Day Pass/Total Data Package | 24-Hour Billing | QR Code
Guest User2026-08-06
Installation is quick and easy. Simply scan the QR code on your phone to add the service beforehand, and you can connect to the network as soon as you arrive at your destination. The 3GB high-speed data per day is more than enough; in actual use, it's around 2GB per day.
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Reviews: Japan 5G eSIM | Supports Google Maps / ChatGPT | Daily/Total Data Plans | 24-Hour Billing | 1–30 Days | QR Code
Guest User2026-09-07
Used in Japan. Affordable prices, excellent signal, and fast connection. You can view your remaining data by clicking "View details" from the email link.
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Reviews: Japan au KDDI 5G eSIM | Local IP · supports all AI & TikTok | 100GB/day | Calendar day billing | QR code
Guest User2026-09-05
This trip to Japan used the **au KDDI 5G eSIM native network**, and it was more stable than I expected overall. I installed the eSIM before departure, and after arriving in Japan and turning on mobile data, I quickly connected to the au KDDI network. The setup process was simple, and not needing to change a physical SIM card was really convenient. During actual use, **Google Maps navigation, LINE, YouTube, Instagram, and Facebook** were all very smooth. I was particularly concerned about **ChatGPT, AI tools, and TikTok working properly**, and in my tests, they all worked directly without needing a VPN, which was very important to me. Regarding network speed, I could connect to **5G** most of the time in the city; webpage loading, photo uploading, and video streaming were all fast. While traveling by public transport, I occasionally switched back to 4G, but there wasn't a significant impact on actual use. Of course, signal strength is still affected by location, buildings, and the condition of the base station; it's impossible to guarantee full 5G signal everywhere. I personally think the biggest advantage is the **Japanese au KDDI native line**. I've used some roaming eSIMs before, and even though the signal showed 4G/5G, there was always a slight delay when browsing the web. This time, using KDDI felt significantly more natural; Google Maps for directions, finding restaurants, and even using ChatGPT were all smooth. Furthermore, eSIMs are incredibly convenient for independent travel. After landing, I don't need to look for my SIM card, carry a router, or worry about it running out of battery. I can simply switch my phone to eSIM and start using it. Overall Rating: ★★★★★ Advantages: • Stable connection using au KDDI native network • Fast 5G speeds in urban areas • ChatGPT and AI tools work normally • TikTok works normally • Smooth Google Maps navigation • Easy QR code installation, no need to change physical SIM • Ideal for independent travel in Japan If you frequently use **Google Maps, ChatGPT, TikTok, and YouTube** while traveling, I would recommend this type of eSIM with a native Japanese network. While it may not be the cheapest on the market, I think it's worth it considering the network stability and ease of use. Next time I go to Japan, I will still prioritize **au KDDI native 5G eSIM**.
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Reviews: KDDI Japan 5G Local eSIM | Supports All AI/TikTok | Daily/Full-up Package | 100GB/day | 3-30 days | Calendar-Day Billing | QR code
Guest User2026-08-24
The connection was good. There is no problem occured,,it is also quite enough to connect for the first time use.
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Reviews: Japan 5G eSIM | ChatGPT Available | Day Pass/Total Data Package | 24-Hour Billing | QR Code
Guest User2026-09-01
Super easy to setup and use on my phone! Pleasant experience and solid coverage in my trip to Tokyo. I also had zero issues sharing the data as hotspot too
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Reviews: Japan 5G eSIM | Dual Network, supports all AI & TikTok | 500MB/day - 100GB total | 1-90 days | 24-hour billing | QR code
Guest User2026-05-28
It was a very interesting trip to Japan, but I probably won't be going back anytime soon. My company's project there for this year has been successfully completed. Thanks to Ctrip for recommending the SIM card, the speed is so fast!

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