"We have overcome all our partners and competitors, so to speak, in this area".
Two of the weapons were a nuclear-powered cruise missile and an artificial drone, he said. "The day before yesterday they executed 10 people", Putin told the Valdai discussion forum in Sochi.
Another new weapon, the Avangard, is set to enter service in the next few months, he said.
The comments come after a national address last March during which Putin showcased Russia's weapons development successes.
"It would naturally mean a global catastrophe, but I want to emphasize that we can't be those who initiate it because we don't foresee a preventive strike", Putin said. Japanese Prime Minister Shinzo Abe had called Putin's peace treaty proposal "unacceptable", the Russian president revealed, according to the Asahi Shimbun.
Putin previous year unveiled "invincible" new weapons that would render Western missile defence systems obsolete.
Israeli Supreme Court overturns entry ban on United States student
Anti-Israel activist Lara Alqasem will not be deported to the US based on a ruling Thursday by Israel's Supreme Court . Israel's Interior Minister Aryeh Deri lamented the court's decision on Twitter, calling it a national embarrassment.
Russia has beefed up its arsenals amid tensions with the West over the Ukrainian crisis, the war in Syria and the allegations of Russian meddling in the USA 2016 presidential vote.
Regarding the armed opposition groups fighting the Syrian government, he said all states with influence over such groups must encourage them to lay down arms and join the political process.
Putin said Trump aims at "some sort of stabilization and improvement of U.S".
Putin also said the countries calling for Iran to leave Syria should provide guarantees that they would not meddle in Syria's affairs.
The Russian leader said the policy in Washington "undermines trust in the dollar as a universal payment instrument and the main reserve currency". "Russian ties", adding that Moscow is ready for that "at any moment".