
19-06-2007, 05:39
The first point I can make is that Tokyo is the ringer in the list. There is no GSM in Japan. To roam in Japan you will need to buy or rent a UMTS handset. If you only plan to be there for a short time you can rent a UMTS handset at the airport for about US$9/day. From the Nokia website I learned that the 6620 is a US-oriented GSM 850/1800/1900 tri-band phone. While this phone may work every place you mention, except Tokyo, it will limit you to service only on the 1800 MHz band. I know nothing about the Sprint phone but assume it's a CDMA phone. I think you should buy a new unlocked GSM phone with both 900 & 1800 MHz. Since you need to buy a new phone, you might as well look at one with UMTS (WCDMA-2100) as well.
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