Xiaomi Redmi 9

Display4.7" 720 x 1280 pixels
ChipsetMediatek MT6589T (28 nm)
Main camera8MP
Battery2000 mAh
Redmi 9 product photo
5.0GoSolo score

Network

Technology
GSM / HSPA
2G bands
GSM 900 / 1800 / 1900
3G bands
HSDPA 900 / 2100
4G bands
1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 40, 41
Speed
HSPA

Launch

Announced
2013, July. Released 2013, August
Status
Discontinued

Body

Dimensions
137 x 69 x 9.9 mm (5.39 x 2.72 x 0.39 in)
Weight
158 g (5.57 oz)
Build
Glass front (Gorilla Glass 3), plastic back, plastic frame
SIM
Dual SIM

Display

Type
IPS LCD
Size
4.7 inches, 60.9 cm2 (~64.4% screen-to-body ratio)
Resolution
720 x 1280 pixels, 16:9 ratio (~312 ppi density)
Protection
Corning Gorilla Glass 2

Platform

OS
Android 4.2 (Jelly Bean)
Chipset
Mediatek MT6589T (28 nm)
CPU
Quad-core 1.5 GHz Cortex-A7
GPU
PowerVR SGX544MP2

Memory

Card slot
microSDHC (dedicated slot)
Internal
4GB 1GB RAM

Main Camera

Modules
8 MP, f/2.2, 28mm (wide), 1/3.2", 1.4µm, AF
Features
Dual-LED flash, HDR
Video
1080p@30fps

Selfie Camera

Module
1.3 MP
Features
HDR · 720p@30fps

Sound

Loudspeaker
Yes
3.5mm jack
Yes

Comms

WLAN
Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
Bluetooth
4.0, A2DP, LE
Positioning
GPS
NFC
No
Radio
FM radio
USB
microUSB 2.0, OTG

Features

Sensors
Accelerometer, gyro, proximity, compass

Battery

Type
Li-Po 2000 mAh, removable
Charging
18W wired

Misc

Colors
Black, Chinese Red, Metallic Gray, blue, green, yellow panels
Models
M2004J19G, M2004J19C
SAR
0.91 W/kg (head)     1.00 W/kg (body)
GoSolo Read / what it means6 takeaways
battery
5020mAh, roughly one full dayAt moderate use (mix of calls, messaging, and browsing), you'll get about 24 to 30 hours before needing to plug in; heavier video watching or gaming cuts that to 16 to 20 hours.
charging
18W wired, about 90 minutes fullGoing from flat to 100% takes roughly 80 to 100 minutes with the standard charger, so plan accordingly if you run low during the day.
performance
Helio G80, light gaming onlyThe octa-core Mediatek with Mali-G52 GPU handles everyday apps, social media, and messaging without stutter, but 3D games run at reduced settings or framerates.
display
6.53 inches, 400 nits, no refresh boostThe IPS LCD shows about 83% screen, 400 nits peak brightness is acceptable indoors and decent in partial sunlight, but 60Hz means scrolling and transitions feel standard for a 2020 budget phone.
camera
13MP main, quad setup, 1080p videoThe main 13MP with PDAF captures workable daylight shots; the 8MP ultrawide at 118° fits landscapes and groups, the 5MP macro and 2MP depth add versatility, but all shoot at 1080p@30fps with no stabilization.
durability
Gorilla Glass 3 front, plastic bodyThe screen is scratch-resistant but older generation; the plastic back and frame handle bumps but lack the rigidity of glass or metal, and no water rating means rain and splashes are a risk.
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