シャオミ(Xiaomi) SIMフリースマートフォン REDMI 15 5G 8+256GB 7000mAh 大容量バッテリー 33Wチャージ 5G対応 6.9インチFHD NFC/FeliCa対応 Snapdragon 6s Gen3 5000万画素AIカメラ IP64防滴防塵 docomo/au/SoftBank/Rakuten Mobile 回線対応チタングレー

￥34,899 ￥41,980 -17%

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

REDMI 15 5G Buying Guide: Battery and FeliCa Support

Name: シャオミ(Xiaomi) SIMフリースマートフォン REDMI 15 5G 8+256GB 7000mAh 大容量バッテリー 33Wチャージ 5G対応 6.9インチFHD
SKU: B0G2KV7Y4F
Price: 34899 JPY
Availability: LimitedAvailability

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

3.6(251)

JPSaver Score

Rating

3.6

Popularity

3.0

A practical 6.9-inch 5G smartphone featuring a massive 7,000mAh battery and FeliCa support for the Japanese market [S1].

👍 Great for

Ideal for users who prioritize long battery life, prefer a large screen for media, and require FeliCa for daily use in Japan [S1].

🤔 Not for you if

Not recommended for those requiring full waterproofing (immersion) or top-tier gaming performance [S1].

✓ Pros

• Massive 7,000mAh battery capacity [S1]
• FeliCa/NFC support for contactless payments in Japan [S1]
• Large 6.9-inch FHD+ display [S1]
• Compatible with major Japanese carriers [S1]

✗ Cons

• IP64 rating provides splash resistance, not full waterproofing [S1]
• 33W charging is modest compared to some ultra-fast charging standards [S1]

Review

The REDMI 15 5G is a SIM-free smartphone featuring an exceptionally large 7,000mAh battery [S1]. According to manufacturer claims, the battery maintains over 80% capacity after 1,000 charging cycles and can support making and receiving calls in standby mode even at 1% battery [S1]. It supports 33W turbo charging for a balance between charging speed and longevity [S1]. The device features a 6.9-inch FHD+ display with an automatic refresh rate adjustment to ensure smooth visuals during browsing or video playback [S1]. It is powered by the Snapdragon 6s Gen 3 processor (6nm process) for stable daily performance [S1]. The camera system consists of a 50MP AI dual camera capable of night shots and a selfie beauty mode [S1]. For users in Japan, the phone is compatible with FeliCa/NFC and supports major carriers including docomo, au, SoftBank, and Rakuten Mobile [S1]. It also carries an IP64 rating for dust and splash resistance [S1].

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FAQ

Q. Does it support FeliCa/Osaifu-Keitai? ▾

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

Q. Which Japanese carriers are supported? ▾

It supports docomo, au, SoftBank, and Rakuten Mobile [S1].

Q. Is it waterproof? ▾

It has an IP64 rating, which means it is dust-tight and splash-resistant, but not fully waterproof [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

[S1] シャオミ(Xiaomi) SIMフリースマートフォン REDMI 15 5G 8+256GB 7000mAh 大容量バッテリー 33Wチャージ 5G対応 6.9インチFHD NFC/FeliCa対応 Snapdragon 6s Gen3 5000万画素AIカメラ IP64防滴防塵 docomo/au/SoftBank/Rakuten Mobile 回線対応チタングレー — 2026-08-03

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.