@atlochowski: thank you, but I prefer other search engines. I notice that most ebay sellers specify "unlocked" for Xperia devices, so that's OK then I guess. Back to the AquaFish: I feel that 65€ (plus shipping) for a used Intex AquaFish is not a very good price, what do folks think? Also I think I should ask the guy about Frequency bands for 2/3/4G and telephony...