is a samsung u600 compatible with o2?

it depends if its unlocked or not besides o2 sims are free so its worth a go pop over to the o2 site and get 1 for free

You will have to have the mobile unlocked.

Emz said:

i like my samsung u600 fone and im currently with orange but i want to change to o2 to get o2 unlimited, can i still keep my samsung? as i dont wanna buy a o2 sim card then find out it doesnt work in my fone!!!

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Hi sure you can use your samsung U600 mobile with o2 sim only after unlocking your phone from orange network provider .You can easily unlock your phone using sites like SuperUnlockCodes.com they are rendering unlock code for all mobile models at reliable cost .After unlocking your phone you can freely use it with any GSM sim ...