The set of communication modules will satisfy most smartphone users. There is NFC, an infrared port, a dual-band 802.11a/b/g/n/ac Wi-Fi module, navigation using GPS, GLONASS and Beidou, as well as Bluetooth 5.1. From the physical ports, Redmi Note 9T has USB-C (with OTG support) and a 3.5 mm mini-jack. There is also support for two nano-sized SIM cards and a separate memory card slot.
Redmi Note 9T is targeting the lower-middle price range and will be positioned as one of the cheaper smartphones that support 5G. A 5G modem integrated with the processor offers wide band coverage: n1, n3, n5, n7, n8, n20, n28, n38, n41, n77 and n78. So it can connect to 5G transmitters of any network, as long as the user is within their range. What's more, it offers access to the 5G network simultaneously on two SIM cards installed in the smartphone. And the quality of the connections itself? I have some comments here. The sound was loud and clear enough, but the sound itself was a bit muffled, like talking in a tunnel.
Memory and performance
The reviewed smartphone is equipped with 128 GB of UFS 2.2 internal memory. There is also a slightly cheaper version of Note 9T, with 64 GB of memory - you need to add that it is a bit of UFS 2.1 memory. How are the two types of memory different? UFS 2.2 is an improvement on UFS 2.1 - the most important change is the presence of the WriteBooster function, which effectively increases the write speed, which in turn affects, among others the process of installing applications, running, caching files, reading and writing large files - generally improves the responsiveness of the device. Therefore, if you decide to use Redmi Note 9T, let it be the version with 128 GB of memory. But let's not forget that the smartphone also has a separate microSD memory card slot.
The smartphone drives MediaTek Dimensity 800U with 5G support in dual SIM mode. It is a 7nm processor with two Cortex-A76 cores and six Cortex-A55 cores, supported by the Mali-G57 graphics chip. Added to this is 4 GB of RAM. Why only this amount and why didn’t we get an alternative? At 6 GB, the smartphone would be a worthy rival among similarly priced models, and even better if the manufacturer also offered a stronger version with 8 GB of RAM. 4 GB is currently the absolute minimum for the mid-range - but for phones at a price not exceeding 200 euros.
The benchmark results show that the device will not run out of power for everyday tasks, or for more complex applications or demanding games. It will be perfect as a device for social media, watching Netflix or using multimedia. With multitasking, you can discuss for a while, because the smartphone often closes applications in the background - but this is not the fault of the processor, but RAM, which is simply not enough. Playing shouldn't be a problem (or at least it wasn't for titles like Asphalt 9 and Real Racing 3), though you have to realize that the Redmi Note 9T is not a gaming smartphone. If this type of entertainment is a priority, it is better to look for a more powerful smartphone. Here are the results achieved in each test application (excluding 3DMark and GFXBench, which failed to launch):