Read the full detailed specifications for Xiaomi redmi 9 power (28 January 2021)

Specs

Launch Details
- Officially announced
  December 2020
  The date when the arrival of the smartphone is publicly announced
- Launch date
  December 2020
  The date when the smartphone is released for the public
Phone (Mr. Phone Score - 65/100)
- Brand
  Xiaomi
  OEM producing the smartphone
- Phone type
  Smart phone
  Classification based on what functionalities are offered by the phone
- Form factor
  Candybar
  Classification of smartphone according to basic shape
- Operating system
  MIUI V12 (Android 10)
  Operating system powering the entire smartphone. In an Android phone this is the OEM's fork on android with their customisations and features. Some of the most popular Android Skins include MIUI, Oxygen OS, Grace UI, HYC sense etc.
- Dimensions
  162.3 x 77.3 x 9.6 mm
  physical dimensions of the smartphone
- Weight
  198 grams
  Weight of the mobile phone in grams
- Colours
  Mighty Black, Blazing Blue, Electric Green, Fiery Red
  Availability of various colors
- Materials
  Plastic
  Materials that constitute the body and structure of the smartphone
Display (Mr. Phone Score - 19.25/100)
- Screen size
  6.53 inches
  physical size of the screen measured by the diagonal.
- Resolution
  1080 x 2340 pixels
  Total number of pixels on the display
- Pixel density
  395 ppi
  number of pixels per square inch of the display.
- Technology
  IPS
  Display technology used in the smartphone. The display technologies decide a lot of factors including how it looks, what the brightness can be, the power consumption etc. Morden smartphone displays range from TFT, TN Panels to IPS LCD, OLED, and AMOLED panels.
- Display design
  Waterdrop notch
  Display shape with classification based on current trends. Morden displays come in different shapes and sizes and this varies from near bezel less, notch display, waterdrop notch, to fully bezel less phones. This lets one get an idea of how the display looks.
- Aspect ratio
  2.167:1 (20:9)
- Screen-to-body ratio
  83.7 %
  Percentage of display area to the front of the smartphone. This ratio became more popular recently with the introduction of tall 18:9 displays. Now we have bezel less, notched displays with screen to body ratios of 18.5:9, 19:9, and even 19.5:9.
- Display Features
  Capacitive, Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 3, 400 cd/mÂ², 70% NTSC, 1500:1, TÃœV Rheinland Certified Reading Mode
  Availability of special features in the display
Camera (Mr. Phone Score - 64.8/100)
- Rear Camera
  48 MP
  Primary Rear camera Megapixel count
- 2nd Rear Camera
  8 MP (ultra-wide)
  Secondary rear camera megapixel count
- 3rd Rear Camera
  2 MP (depth-sensing)
  Third rear camera megapixel count
- 4th Rear Camera
  2 MP (macro)
  Fourth rear camera megapixel count
- Rear Aperture Size
  f/2.2
  Primary Rear camera aperture. The aperture stop of a photographic lens can be adjusted to control the amount of light reaching the film or image sensor.
- Rear Pixel size
  0.8 Î¼m
  Primary rear camera individual pixel size
- Rear Video
  1920 x 1080 pixels @ 30 fps
  Rear camera maximum video recording resolution. This let's one know the highest resolution they can shoot in and will be in the order of 1080x1920 @ 30fps/60fps, or 4K @30fps/60fps and can be lower too depending on the smartphone.
- Stabilization
  EIS
  Availability of Electronic or Optical Stabilisation. To make the video shake free, the camera has to support any one kind of stabilisation. OIS or Optical Image Stabilisation is facilitated by a movable camera module that compensated for your shakes. EIS or Electronic Image Stabilisation is where in post processing the video is slightly cropped in and stabilised.
- Autofocus tech
  Touch-to-focus, Phase Detection AF
  Technology used to facilitate AutoFocus. AutoFocus is one of the most useful features in a smartphone camera and can be facilitated using a few different methods including Phase Detection Auto Focus, Laser Auto Focus etc.
- Flash
  LED
  Availability of flash at the rear. The flash makes sure that you can take low light shots.
- Front camera
  8 MP
  Primary front camera megapixel count.
- Front Aperture Size
  f/2
  Primary front camera Aperture. The aperture stop of a photographic lens can be adjusted to control the amount of light reaching the film or image sensor.
- Front Video
  1920 x 1080 pixels @ 30 fps
  Front camera maximum video recording resolution.This let's one know the highest resolution they can shoot in and will be in the order of 720x1280 @ 30fps, or 1080x1920 @30fps/60fps and can be lower too depending on the smartphone.
- Features
  CMOS (complementary metal-oxide semiconductor), Autofocus, Digital zoom, Digital image stabilization, Geotagging, Panorama, HDR, Touch focus, Face detection, White balance settings, ISO settings, Exposure compensation, Self-timer, Scene mode, Macro mode, Phase detection autofocus (PDAF), Secondary rear camera - 8 MP (ultra-wide), Aperture size - f/2.2 (#2), Angle of view - 120Â° (#2), Third rear camera - 2 MP (depth-sensing), Sensor size - 1/5" (#3), Pixel size - 1.75 Î¼m (#3), Aperture size - f/2.4 (#3), Fourth rear camera - 2 MP (macro), Aperture size - f/2.4 (#4)
  Special features in the camera
Hardware (Mr. Phone Score - 93.49/100)
- Chipset
  Qualcomm Snapdragon 662
  System on Chip powering the smartphone. Smartphone chipsets are designed by very few companies in the world
- CPU
  8 Cores 2.0 GHz 64-bit
  4 x 2.0 GHz Kryo 260
  4 x 1.8 GHz Kryo 260
  Central Processing unit
- GPU
  Qualcomm Adreno 610
  Graphics processing unit. The GPU is responsible for all the graphics intensive stuff on your smartphone including video rendering, playing games etc.
- RAM
  4 GB
  Random Access Memory(Volatile memory) in the smartphone. The amount of RAM in a phone is responsible for how many apps will stay in memory and will not have to reload.
- Internal storage capacity
  64, 128 GB
  non-removable hardware storage inside the smartphone. The internal storage on a smartphone is responsible both for storing files, as well as the applications on it. The whole system runs on that internal storage which makes its quality important. Modern internal storages range from Emma 5.0, Emma 5.1, UFS 2.0, UFS 2.1 etc.
- External storage available
  Yes
  Availability of a micro-sd card slot.
- External storage capacity
  512 GB
  Amount of removable storage that can be added to the phone to increase the offline storage. The external storage let's you upgrade the space on ones phone allowing them to store more and more files.
- External storage type
  microSD, microSDHC, microSDXC
- Fingerprint
  Yes
  Availability of a fingerprint scanner as a biometric unlock. The fingerprint scanners have become the most popular and secure way to unlock smartphones today and will be used till other biometric locks become as secure and as convenient.
Battery (Mr. Phone Score - 85/100)
- Capacity
  6000 mAh
  battery capacity in mAh. This indicates the physical capability of your battery to store charge in it. If we don't take into account software optimisation, and a few other factors, the with capacity the bigger the better.
- Removable
  No
  if it can be taken out without expert help. Removable batteries which used to be a standard a few years ago has now become rare. The ability to remove the battery provides the unique opportunity to keep two batteries and keep them both charged which make sure that you are never out of battery.
- Fast charging available
  Yes
  Availability of high wattage charging for high intensity charging. This type of charging facilitated faster charging times and lesser time plugged to the wall.
- Fast charging type
  Qualcomm Quick Charge 3.0
  fast charging standard supported. Fast charging standards differ from OEM to OEM and apart from a Qualcomm's quick charge standards most others are from smartphone manufacturers. Dash charge from OnePlus, Adaptive fast charging from Samsung, Vooc and Super Vooc from Oppo being some examples.
Technology
- No of SIM slots
  2
  The amount of slots in the phone including the sim and micro SD card slots.
- SIM type
  Nano
  physical classification of SIM card based on size. Different phones have different sized slots depending on how much space they are willing to spare for the sim slot. That would mean that if you have a standard large sim and your phone supports micro or nano sim, then the sim would be need to be replaced with a smaller version from the service provider.
- Hybrid slot
  No
  Availability of a slot which can either hold a micro sd card or a SIM card. This slot was designed to address the Indian audience which was divided into dual sim users and a sim and micro-SD card users.
- Cellular standard
  VoLTE, 4G, 3G, 2G
  Maximum cellular connection standard supported by that SIM card.
- GSM
  850 (B5), 900 (B8), 1800 (B3), 1900 (B2) MHz
  Type of a cellular standard
- CDMA
  800 (BC0) MHz
  Type of a cellular standard
- W-CDMA
  850 (B5), 900 (B8), 2100 (B1) MHz
  Type of a cellular standard
- LTE
  LTE-FDD 850 (B5), LTE-FDD 900 (B8), LTE-FDD 1800 (B3), LTE-FDD 2100 (B1), LTE-TDD 2300 (B40), LTE-TDD 2500 (B41) MHz
  Type of a cellular standard
- Network
  UMTS (384 kbit/s ), EDGE, GPRS, HSPA+, LTE Cat 12 (102.0 Mbit/s , 603.0 Mbit/s ), EV-DO Rev. A (1.8 Mbit/s , 3.1 Mbit/s )
- Positioning
  GPS, A-GPS, GLONASS, BeiDou
  Ability to track the position of the smartphone through Cellular networks. This helps to track the geo location of a particular device using the position of cellular towers are reference.
- Sensors
  Proximity, Light, Accelerometer, Compass, Gyroscope, Fingerprint, Side-mounted fingerprint sensor
  The availability of hardware sensors on the smartphone. The sensors on a smartphone ranges from proximity and ambient light sensors, to accelerometer, gyroscopes and compass. These hardware sensors facilitate things like auto-brightness, position information etc.
Connectivity (Mr. Phone Score - 60/100)
- Bluetooth available
  Yes
  If Bluetooth is available on the smartphone or not. Having bluetooth in your phone enables it to make data transfers wirelessly to another bluetooth supported devices, which includes file transfers, wireless audio etc.
- Bluetooth version
  5.0
  Bluetooth version present on the smartphone. Bluetooth versions indicate the generation and with every generation the bluetooth connection becomes better in various ways. The bluetooth versions started with Bluetooth 1.x then came Bluetooth 2.x and the nomenclature goes similarly for later versions.
- Bluetooth codec
  A2DP, EDR, HID, LE
  Wireless data encryption algorithms for audio through smartphones. It encodes and decodes digital audio data into a specific format. Ideally, it transmits a high-fidelity signal at the minimum specified bit-rate.
- NFC
  No
  Wireless pairing technology by bringing two supported phones with 4cms of each other. NFC is used for social networking, for sharing contacts, photos, videos or files. NFC-enabled devices can act as electronic identity documents and keycards.
- USB connector type
  USB Type-C v2.0
  The data/power input/output port on the smartphone. The USB connectors include Type A, type B, Micro USB, Mini USB, and USB-C.
- Audio connector type
  3.5 mm
  The audio input/output port on the smartphone. The audio connectors range for analog 2.5mm, 3.5mm ports to various digital USB ports.
- Wi-Fi
  802.11a (IEEE 802.11a-1999), 802.11b (IEEE 802.11b-1999), 802.11g (IEEE 802.11g-2003), 802.11n (IEEE 802.11n-2009), 802.11n 5GHz, 802.11ac (IEEE 802.11ac), Dual band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display
  The ability to connect to the internet wirelessly. Wifi let's you connect various devices to the same network and get access to internet with a wire-free experience.
- Miscellaneous
  Infrared, ViLTE, VoWiFi
- Fm Radio
  Yes
  The ability to play FM channels natively on your smartphone
Price
- Launch Price
  $150
  Price of the mobile phone at the time of launch. This price may differ from the retail pricing and depends on both the region and the duration from the launch of the phone.

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