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Motorola(モトローラ)motorola g66j 5G PANTONE｜8GB/128GB｜ディルグリーン｜SIMフリースマホ本体端末｜NFC/FeliCa対応｜FMラジオ搭載｜正規代理店品｜6.7インチ｜FHD+｜IP68・IP69防水防塵｜大容量バッテリー5,200mAh｜PB810000JP
￥26,820

* Prices are as of the time of writing. Please check Amazon for the latest prices.

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motorola g66j 5G Buying Guide: FeliCa and Waterproofing

This AI-assisted buying guide summarizes public product information. We have not used or performance-tested this product.

4.3(732)

JPSaver Score

Rating
4.3
Popularity
3.6

A cost-effective 6.7-inch 5G smartphone featuring FeliCa support, IP68/69 water resistance, and a large 5,200mAh battery [S1].

👍 Great for

Ideal for residents of Japan who need FeliCa support and prioritize battery life and water resistance for daily use.

🤔 Not for you if

Not recommended for power users/gamers seeking top-tier performance or those who prefer OLED screens.

✓ Pros

  • • FeliCa/NFC support for Japanese contactless payments [S1]
  • • High-level water and dust resistance (IP68/IP69) [S1]
  • • Large 5,200mAh battery capacity [S1]
  • • Smooth 120Hz refresh rate on a 6.7-inch FHD+ display [S1]
  • • Includes 3.5mm headphone jack and FM radio [S1]

✗ Cons

  • • Uses an LCD instead of an OLED display [S1]
  • • USB interface is limited to USB 2.0 [S1]

Review

The motorola g66j 5G is a SIM-free smartphone designed for practicality and value in the Japanese market. It features a large 6.7-inch FHD+ LCD screen with a 120Hz refresh rate for smooth visuals [S1]. The device is powered by a MediaTek Dimensity 7060 chipset with 8GB of RAM and 128GB of internal storage [S1]. For residents of Japan, it includes essential local support such as FeliCa/NFC for contactless payments [S1]. It boasts high durability with IP68 and IP69 water and dust resistance ratings [S1]. The 5,200mAh battery provides substantial capacity for extended use [S1]. Connectivity options include support for both nanoSIM and eSIM with DSDV capability [S1]. It is compatible with major Japanese carriers including docomo, au, softbank, rakuten, and domestic MVNOs [S1]. Additionally, it retains the 3.5mm headphone jack and includes an FM radio [S1].
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FAQ

Q. Does it support Japanese mobile payments (Osaifu-Keitai)? ▾

Yes, it is compatible with FeliCa and NFC [S1].

Q. Which Japanese carriers are supported? ▾

It supports docomo, au, softbank, rakuten, and domestic MVNOs [S1].

Q. What is the water resistance rating? ▾

The device is rated IP68 and IP69 for water and dust resistance [S1].

Q. What are the SIM options? ▾

It supports one nanoSIM and eSIM, allowing for DSDV (Dual SIM Dual Standby) [S1].

Sources and buying checks

This AI-assisted buying guide summarizes public product information. We have not used or performance-tested this product.

Guide updated: 2026-09-06

Before buying in Japan, check the exact model’s manual/app language, local warranty, required accessories and installation or compatibility requirements. Unlisted capabilities are not confirmed.

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