for the price they are about the same, the difference is 1000-2000P (depending on place of purchase) in favor of Optimus. Samsung already sold with Android 2.1, while the Optimus will have to upgrade, I bought in MediaMarkt with version 1.6 and about a week waiting for the updates.
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From the subjective opinions of the owner of Optimus: someone does not like the design of Optimus, plain, etc. I Personally do not like that there is no place for stylus. In version 2.1 thank God corrected a bug with the message set — 1.6 version on the Optimus I had 15 minutes to edit without the stylus your SMS to the receiving party understood what I wanted to say.
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The screen is a little more than the Samsung 320 to 480, on a Sunny day even on the loudest brightness looks pale, almost can not see that on the screen. Never tried, but seems to be not scratched, especially when using the stylus.
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Did not like nepahannoe useless to me services like Odnoklassniki, Vkontakte, Poster, Sport, the Mamba, which no root can not delete.
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About the battery: the regime talked a little bit sat in the Internet works for 3-4 days but on the 4th day starts beeping about small charge. With full use of all services running between 1 and 1.5 days.
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Did not like the speaker at high volumes slightly noticeable crackles.
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Still at a loss — I was on firmware 1.6 I had before synchronizing with the computer to reload the phone.
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Headset also negative — out of the ears, the feeling that I bought a cheap Chinese headphones for $ 100 in the transition. However, the connection quality is normal.
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Famous APNdroid refused to work — or rather worked, but the Internet is not disconnected. So I had hands cut apn point and only work via wi-fi, otherwise eaten quite a lot of money.