The ultimate 2021 Review of Xiaomi Redmi Note 9S
The Xiaomi Redmi Note 9S is a fairly new model, having been launched in the middle of 2020.
The overall quality of this smartphone is good; since it is very affordable, it is certainly a good choice.
Main test results
The Xiaomi Redmi Note 9S arrived on the market with Android 10, so there are no problems for security and compatibility with apps and other devices.
The 6.7″ screen with a resolution of 2400 x 1080 pixels looks better than that of other models and is also very quick to react to commands.
One of the strengths of Xiaomi Redmi Note 9S is the good battery life: in our usage scenario, its 5020 mAh allows it to reach 34 hours, which is on average.
The 43.9 GB of actual available internal memory (64 GB declared) may be enough to store our data, if not, we can use an SD memory card to expand the phone memory.
It suffered some minor damages in the drop test, but passed it well and can therefore be considered quite robust.
Models in this price range are usually not very powerful: this phone is an exception, so you can certainly use it even for tasks that require high performance, such as some video games.
Among the most interesting functions are: being dual SIM (two SIMs, two numbers, can work simultaneously) and the presence of the fingerprint reader.
This model is compatible with 4G connection.
Xiaomi Redmi Note 9S has four rear cameras (the main one is 48 Mp), which allow you to get good quality photos, except in situations with little light where they only reach sufficiency.
This mobile phone has a 16 Mp front camera, which allows you to take pictures of just enough quality, so selfies are not exciting.
- The quality of the screen is excellent
- Battery life is good
- The photos taken with the rear camera are of good quality
- It is one of the most affordable models
- The version of the operating system is recent
- This model has no real weaknesses
All tests results
|Quality of video footage from rear camera||★★★☆☆|
|Quality of video footage from front camera||★★☆☆☆|
|Audio quality of movies||★★★☆☆|
|Touchscreen speed and accuracy||★★★★★|
|Battery life (for standard usage scenario)||34 h|
|Quick battery charging||★★★★☆|
|Extra battery functionality||★★★☆☆|
|Amount of memory available||★★★★☆|
|Impermeability to water||Not applicable|
|Audio quality through the speakers||★★★☆☆|
|Sound quality with high quality headphones||★★★★★|
Ease of use
|Usability of the touchscreen||★★★★★|
|Ease of use of the camera||★★★★★|
|Accessibility via facial recognition or fingerprint||★★★★☆|
|Simplicity of settings||★★★★★|
|Operation on different frequency bands||★★★☆☆|
|Operation on different wifi standards||★★★★☆|
|Memory card reader||★★★★★|
|Availability of sensors||★★★★☆|
All technical specs
|Operating system version tested||Android 10|
|Latest update available||Android 10|
|Google Service available||✔️|
|Diagonal screen size||6.7 inch|
|Internal memory declared||64 GB|
|Memory capacity actually available||43.88 GB|
|Type of memory card||SD|
|Processor||Qualcomm Snapdragon 720G|
|Processor frequency||2.3 GHz|
|Number of cores||8|
|RAM memory||4 GB|
|Battery capacity||5020 mAh|
|Wireless charging possible||❌|
|Wireless charger provided||Not considered|
|SAR level declared||0.98 Watt per kg|
|Weight, including SIM and battery||210 g|
|Available in Dual SIM||✔️|
|Dual SIM and independent memory card reader||✔️|
|SIM type||Nano SIM|
|3.5mm audio output||✔️|
Camera and video camera
|Resolution of the main rear camera||48 MPx|
|Resolution of the main front camera||16 MPx|
|Number of rear cameras||4|
|Number of front cameras||1|
|Optical image stabilizer||❌|
|Slow motion mode||✔️|