⚖️ Side-by-Side Comparison
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NTT Docomo in Japan — Complete Overview
NTT Docomo operates Japan's largest and most extensive mobile network, covering 99.9%+ of populated areas. It's the network that most MVNOs (including IIJmio) piggyback on. Ideal for residents who travel to rural areas frequently.
Best for: Residents who need the absolute best coverage — especially in rural Tohoku, Hokkaido, and Okinawa.
✅ Pros
- Widest coverage in Japan (99.9%+)
- Excellent building penetration in cities
- English support at Docomo shops in major hubs
- Most MVNOs use this network
❌ Cons
- Most expensive of the big three
- Residence card required
- Long-term contracts common at shops
NTT Docomo Plans & Pricing for Foreigners
Plan | Price | Data | Calls | Notes |
|---|---|---|---|---|
| Mini Plan | ¥1,320/mo | 1 GB | ¥22/min | Minimal users |
| Standard Plan | ¥2,970/mo | 5 GB | Included | Balanced |
| Unlimited Plan | ¥7,315/mo | Unlimited | Included | Power users |
How to Get a Docomo SIM in Japan
1
Visit a Docomo shop with Zairyu card and passport
2
Select plan — credit card or Japanese bank required
3
Physical SIM or eSIM issued on the spot
4
Set up d account for online billing
NTT Docomo Reviews from Foreigners in Japan
Bikash Gurung
🇳🇵 Pokhara → Nagoya · 4 years
★★★★★
Work in manufacturing across rural Aichi — Docomo is the only carrier with signal at every factory site. Expensive but essential for my job.
Lin Mei-Hua
🇹🇼 Kaohsiung → Kyoto · 2 years
★★★★☆
Switched from Rakuten to Docomo after coverage issues in the mountains. Pricey but zero dead zones on my weekend hikes.
NTT Docomo FAQ — Japan SIM Guide
IIJmio uses Docomo's network at lower prices. Direct Docomo is worth it if you need priority speeds during congestion or premium customer support.
Docomo has prepaid tourist SIMs at airports, but long-term contract plans require a residence card.
Docomo leads 5G deployment in Tokyo, Osaka, Nagoya, and Fukuoka. Rural 5G is expanding but 4G LTE remains excellent everywhere.
📶 Other Providers
IIJ
IIJmio
¥850/mo
AU
au (KDDI)
¥1,078/mo
🌸
Sakura Mobile
¥3,000/mo
UB
Ubigi eSIM
¥1,200/mo
SB
SoftBank
¥1,365/mo