Infinix Note 4 and Hot 4 Pro First Impressions: Infinix Note 4 and Hot 4 Pro are the latest budget smartphones from Chinese company- Transsion Holdings. The smartphones offer big battery units, fingerprint scanners for added security and have dedicated microSD card slots. Both the handsets will be exclusively available on Flipkart at Rs. 8,999 and Rs. 7,499 respectively.