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KaruizawaSIM card
KaruizawaSIM card

Top Picks for Karuizawa SIM card

Discover 31 SIM card in Karuizawa on Trip.com, updated December 13, 2025, with experiences lasting from 1 to 2 hours. Find the perfect adventure for your day!

From EUR 0.10 per person, with an average total of EUR 1.21. Choose the option that suits your plan.

With 30.922k verified reviews, SIM card Karuizawa boast an average rating of 4.6.

This week's most popular SIM card: "Global (66 countries) | 4G/5G eSIM | Total Package | 1-7 days | 24H Billing | Real-Name Auth Required (Hong Kong & Taiwan) | QR code", with 9.092k reviews and a 4.4 rating.

The next available day tour departs on December 14, 2025. Book now to secure your spot!

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

December is the perfect time to visit Karuizawa! Choose from SIM card available day tours, including seasonal favorites like Global (66 countries) | 4G/5G eSIM | Total Package | 1-7 days | 24H Billing | Real-Name Auth Required (Hong Kong & Taiwan) | 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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31 Results for Karuizawa SIM card

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Day tours (64)Travel photography (4)Wi-Fi (2)SIM card (31)Shuttle bus (7)Rail passes (1)City pass (4)Equipment rental (6)Cultural experiences (5)Local cuisine (3)Food & drink (3)Food & drink (3)Outdoor experiences (1)

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Reviews/Trip Moments

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Reviews: Japan | 5G eSIM | Day Pass/Total Package | 24H Billing | 1-30 days | QR code
Guest User2025-11-29
Easy to install. Convenient to use. Good signal. Works well even in many places. There is a link to check how much you have used. Recommended. No need to put in a SIM card, it's a hassle.
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Reviews: Japan 5G eSIM | TikTok & ChatGPT Available | Day Pass/Total Data Package | 24-Hour Billing | 1-30 Days | QR Code
Guest User2025-11-29
Easy to install. Convenient to use. Good signal. Works well even in many places. There is a link to check how much you have used. Recommended. No need to put in a SIM card, it's a hassle.
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Reviews: Japan SoftBank 4G/5G eSIM | TikTok & ChatGPT Available | Day Pass | 24-Hour Billing | 1-30 Days | QR Code
Guest User2025-12-06
The internet is okay, but the signal is weak in some areas in Kyoto. We bought 2GB per day, but it wasn't enough. Every day, it runs out at 5 PM. After it runs out, it's incredibly slow, making it almost impossible to do anything. If you're using it a lot to browse maps, use Instagram or TikTok, I recommend 5GB per day. It's better to have some extra than not enough, because it can be really difficult to search without internet.
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Reviews: Asia 11 Regions & Oceania 4G/5G eSIM | TikTok & ChatGPT Available | Day Pass/Total Data Package | 24-Hour Billing | 1-30 Days | QR Code
Guest User2025-07-27
I went to Vietnam → Cambodia on a woman's solo trip and stayed in Cambodia for 9 nights (Phnom Penh 2 nights, Krache 1 night, Siem Reap 6 nights) ♪ Thanks to this eSIM, it was a fulfilling trip ^ ^ Use again Shu!
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Reviews: Japan au KDDI 5G eSIM | TikTok & ChatGPT Available | Day Pass/Total Data Package | 3-31 Days | Calendar-Day Billing | QR code
Guest User2025-10-30
I purchased an 8-day eSIM, and it was stable throughout my trip to Fukuoka, including visits to Ito-majima and Dazaifu. It automatically switched to 5G when there was a 5G signal and 4G when there wasn't. The only time I encountered a very weak signal was in a basement restroom in a shopping mall; it was fine once I left, which was due to the mall's antenna coverage and not related to the eSIM. I installed the eSIM in China the day before departure. During installation, it might show an activation failure message, but that's normal. Wait until you can access the eSIM card and then turn it off. Once in Japan, activate it again and switch your cellular data to eSIM. It uses a local IP address, so you don't need to enable data roaming. You can also create a hotspot. The whole experience was smooth, and the price was reasonable. Highly recommended!
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Reviews: Japan DOCOMO(IIJmio) 4G eSIM | TikTok & ChatGPT Available | Day Pass/Total Data Package | Calendar-Day Billing | 1-30 Days | QR Code
Guest User2025-12-07
scan qr code from email. easy to install.resonable price.signal was good. donot forget turn on data roaming on the phone.

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