The Infinix SMART 9 HD offers 4G LTE only (no 5G). According to the network specifications, the phone supports many 4G bands including Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 38, 40, 41, and 66. These bands work with all major Indian network providers.
The specifications show a dual nano-SIM hybrid slot. Based on the technical specifications, you choose between using two SIM cards or one SIM plus a microSD card for storage. The official specifications confirm dual VoLTE support for HD voice calls on both SIMs.
For Wi-Fi, the specifications show Wi-Fi 802.11 a/b/g/n/ac dual-band support. This is Wi-Fi 5 standard. The Bluetooth specifications indicate version 5.0 for connecting wireless headphones and speakers.
The specifications don’t include NFC. This means no contactless payments like Google Pay tap-to-pay. According to the USB specifications, the phone has USB Type-C 2.0 for charging and data transfer. The specifications confirm GPS and A-GPS for navigation.
Sound Features
The audio specifications highlight dual stereo speakers with DTS enhancement. According to the speaker specifications, dual speakers give louder, clearer sound than single speakers. Most budget phones only have one speaker.
The specifications include a 3.5mm headphone jack for wired headphones. The technical specifications also mention Ultra Volume Mode, FM radio, and even an infrared port (for TV remotes). According to the specifications, the dual speakers are placed so your hands don’t block them when holding the phone sideways.
The specifications confirm mobile hotspot support for sharing internet. The 4G LTE bands ensure good coverage across India.