Japan 4G 7 Days Card $128(Buy)
First 7GB will be at 3G/4G speed, afterward speed will be lowered to 2G  
​LTE：2100MHz/1500MHz/800MHz
W-CDMA/HSDPA/HSUPA：2100MHz/800MHz  
​​Some dual SIM Smartphone like Xiaomi may not able to use this SIM​
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Speed (Download / Upload) 125Mbps / 25Mbps
Voice / SMS ×
Web / E-mail ○
Wi-Fi internet tethering ○ (not applicable with iOS 7 or above)
Google Map GPS ○
Apps ( WhatsApp / Kakao / Facebook / Twitter ) ○
Voice over IP (Skype / LINE / Viber) ○ 
Data Usage Unlimited
Supported devices All smartphone/tablets
SIM Card Type (Mini / Micro / Nano SIM)