Redmi Note 9 Pro Max and Redmi Note 9 Pro will go on sale today starting 12pm (noon). The phones will be available via Amazon and Mi.com through flash sales. Both the Xiaomi smartphones were launched in India in March this year.Redmi Note 9 Pro Max and Redmi Note 9 Pro will go on sale today starting 12pm (noon). The phones will be available via Amazon and Mi.com through flash sales. Both the Xiaomi smartphones were launched in India in March this year.