Xiaomi Redmi Note 9

Specifications
  • 6.53" 1080x2340 pixels
  • 48MP 1080p
  • 3-6GB RAM Helio G85
  • 5020mAh 18W
Network
Technology GSM / HSPA / LTE
2G bands GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands 1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 40, 41
Speed HSPA, LTE
Launch
Announced 2020, April 30
Status Available. Released 2020, May 12
Body
Dimensions 162.3 x 77.2 x 8.9 mm (6.39 x 3.04 x 0.35 in)
Weight 199 g (7.02 oz)
Build Glass front (Gorilla Glass 5), plastic frame, plastic back
SIM Nano-SIM + Nano-SIM
 Water-repellent coating
Display
Type IPS LCD, 450 nits (typ)
Size 6.53 inches, 104.7 cm2 (~83.5% screen-to-body ratio)
Resolution 1080 x 2340 pixels, 19.5:9 ratio (~395 ppi density)
Protection Corning Gorilla Glass 5
Platform
OS Android 10, upgradable to Android 11, MIUI 12.5 E
Chipset Mediatek MT6769Z Helio G85 (12 nm)
CPU Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
GPU Mali-G52 MC2
Memory
Card slot microSDXC (dedicated slot)
Internal 64GB 3GB RAM, 64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM
Main Camera
Quad 48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF
8 MP, f/2.2, 118˚ (ultrawide), 1/4.0", 1.12µm
2 MP, f/2.4, (macro), AF
2 MP, f/2.4, (depth)
Features LED flash, HDR, panorama
Video 1080p@30fps
Selfie Camera
Single 13 MP, f/2.3, 29mm (standard), 1/3.1", 1.12µm
Features HDR, panorama
Video 1080p@30fps
Sound
Loudspeaker Yes
3.5mm jack Yes
Comms
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth 5.0, A2DP, LE
Positioning GPS, GLONASS, GALILEO, BDS
NFC Yes (market/region dependent)
M2003J15SG (Yes); M2003J15SS (No)
Infrared port Yes
Radio FM radio, built-in antenna
USB USB Type-C 2.0
Features
Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Messaging SMS(threaded view), MMS, Email, Push Email, IM
Browser HTML5
Battery
Type Li-Po 5020 mAh
Charging 18W wired
9W reverse wired
Misc
Colors Forest Green, Midnight Grey, Polar White
Models M2003J15SC, M2003J15SG, M2003J15SS
SAR 0.84 W/kg (head)     0.90 W/kg (body)    
SAR EU 0.80 W/kg (head)     1.14 W/kg (body)    
Price $ 91.80 / £ 101.26 / € 74.99 / ₹ 14,999
Tests
Performance AnTuTu: 200414 (v8)
GeekBench: 1292 (v5.1)
Display 1242:1 contrast ratio, 370 nits max brightness (measured)
Camera Photo / Video
Loudspeaker -30.1 LUFS (Below average)
Battery (old) Endurance rating 125h

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User opinions and reviews

  • Anonymous

This phone was ok, until it randomly struggles to load a single app, then subsequently bootloops until you hold the volume up and power buttons. It'll do the same about a day or two later. The audio chip in it is pretty poor quality too. Cutting...

  • starzainia

This poor thing got knee-capped by a sudden Android 12 upgrade, due to me getting the 64G-3GB model. Don't get a lower-end phone that will get many upgrades (if you have low RAM)

  • FOJE

Severe thermal issues killed mine, doesn't even boot up anymore.